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# stuff related specifically to patch manipulation / parsing
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#
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# Copyright 2008 Mark Edgington <edgimar@gmail.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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#
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# This code is based on the Mark Edgington's crecord extension.
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# (Itself based on Bryan O'Sullivan's record extension.)
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from __future__ import absolute_import
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import locale
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import os
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import re
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import signal
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from .i18n import _
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from . import (
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encoding,
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error,
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patch as patchmod,
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scmutil,
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util,
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)
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stringio = util.stringio
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# This is required for ncurses to display non-ASCII characters in default user
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# locale encoding correctly. --immerrr
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locale.setlocale(locale.LC_ALL, u'')
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# patch comments based on the git one
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diffhelptext = _("""# To remove '-' lines, make them ' ' lines (context).
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# To remove '+' lines, delete them.
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# Lines starting with # will be removed from the patch.
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""")
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hunkhelptext = _("""#
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# If the patch applies cleanly, the edited hunk will immediately be
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# added to the record list. If it does not apply cleanly, a rejects file
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# will be generated. You can use that when you try again. If all lines
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# of the hunk are removed, then the edit is aborted and the hunk is left
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# unchanged.
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""")
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patchhelptext = _("""#
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# If the patch applies cleanly, the edited patch will immediately
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# be finalised. If it does not apply cleanly, rejects files will be
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# generated. You can use those when you try again.
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""")
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try:
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import curses
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curses.error
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except ImportError:
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# I have no idea if wcurses works with crecord...
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try:
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import wcurses as curses
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curses.error
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except ImportError:
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# wcurses is not shipped on Windows by default, or python is not
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# compiled with curses
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curses = False
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def checkcurses(ui):
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"""Return True if the user wants to use curses
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This method returns True if curses is found (and that python is built with
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it) and that the user has the correct flag for the ui.
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"""
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return curses and ui.interface("chunkselector") == "curses"
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class patchnode(object):
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"""abstract class for patch graph nodes
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(i.e. patchroot, header, hunk, hunkline)
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"""
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def firstchild(self):
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raise NotImplementedError("method must be implemented by subclass")
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def lastchild(self):
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raise NotImplementedError("method must be implemented by subclass")
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def allchildren(self):
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"Return a list of all of the direct children of this node"
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raise NotImplementedError("method must be implemented by subclass")
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def nextsibling(self):
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"""
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Return the closest next item of the same type where there are no items
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of different types between the current item and this closest item.
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If no such item exists, return None.
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"""
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raise NotImplementedError("method must be implemented by subclass")
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def prevsibling(self):
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"""
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Return the closest previous item of the same type where there are no
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items of different types between the current item and this closest item.
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If no such item exists, return None.
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"""
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raise NotImplementedError("method must be implemented by subclass")
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def parentitem(self):
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raise NotImplementedError("method must be implemented by subclass")
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def nextitem(self, skipfolded=True):
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"""
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Try to return the next item closest to this item, regardless of item's
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type (header, hunk, or hunkline).
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If skipfolded == True, and the current item is folded, then the child
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items that are hidden due to folding will be skipped when determining
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the next item.
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If it is not possible to get the next item, return None.
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"""
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try:
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itemfolded = self.folded
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except AttributeError:
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itemfolded = False
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if skipfolded and itemfolded:
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nextitem = self.nextsibling()
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if nextitem is None:
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try:
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nextitem = self.parentitem().nextsibling()
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except AttributeError:
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nextitem = None
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return nextitem
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else:
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# try child
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item = self.firstchild()
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if item is not None:
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return item
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# else try next sibling
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item = self.nextsibling()
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if item is not None:
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return item
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try:
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# else try parent's next sibling
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item = self.parentitem().nextsibling()
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if item is not None:
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return item
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# else return grandparent's next sibling (or None)
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return self.parentitem().parentitem().nextsibling()
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except AttributeError: # parent and/or grandparent was None
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return None
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def previtem(self):
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"""
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Try to return the previous item closest to this item, regardless of
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item's type (header, hunk, or hunkline).
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If it is not possible to get the previous item, return None.
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"""
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# try previous sibling's last child's last child,
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# else try previous sibling's last child, else try previous sibling
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prevsibling = self.prevsibling()
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if prevsibling is not None:
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prevsiblinglastchild = prevsibling.lastchild()
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if ((prevsiblinglastchild is not None) and
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not prevsibling.folded):
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prevsiblinglclc = prevsiblinglastchild.lastchild()
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if ((prevsiblinglclc is not None) and
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not prevsiblinglastchild.folded):
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return prevsiblinglclc
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else:
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return prevsiblinglastchild
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else:
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return prevsibling
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# try parent (or None)
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return self.parentitem()
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class patch(patchnode, list): # todo: rename patchroot
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"""
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list of header objects representing the patch.
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"""
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def __init__(self, headerlist):
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self.extend(headerlist)
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# add parent patch object reference to each header
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for header in self:
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header.patch = self
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class uiheader(patchnode):
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"""patch header
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xxx shouldn't we move this to mercurial/patch.py ?
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"""
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def __init__(self, header):
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self.nonuiheader = header
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# flag to indicate whether to apply this chunk
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self.applied = True
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# flag which only affects the status display indicating if a node's
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# children are partially applied (i.e. some applied, some not).
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self.partial = False
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# flag to indicate whether to display as folded/unfolded to user
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self.folded = True
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# list of all headers in patch
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self.patch = None
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# flag is False if this header was ever unfolded from initial state
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self.neverunfolded = True
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self.hunks = [uihunk(h, self) for h in self.hunks]
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def prettystr(self):
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x = stringio()
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self.pretty(x)
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return x.getvalue()
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def nextsibling(self):
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numheadersinpatch = len(self.patch)
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indexofthisheader = self.patch.index(self)
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if indexofthisheader < numheadersinpatch - 1:
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nextheader = self.patch[indexofthisheader + 1]
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return nextheader
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else:
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return None
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def prevsibling(self):
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indexofthisheader = self.patch.index(self)
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if indexofthisheader > 0:
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previousheader = self.patch[indexofthisheader - 1]
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return previousheader
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else:
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return None
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def parentitem(self):
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"""
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there is no 'real' parent item of a header that can be selected,
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so return None.
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"""
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return None
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def firstchild(self):
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"return the first child of this item, if one exists. otherwise None."
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if len(self.hunks) > 0:
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return self.hunks[0]
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else:
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return None
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def lastchild(self):
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"return the last child of this item, if one exists. otherwise None."
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if len(self.hunks) > 0:
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return self.hunks[-1]
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else:
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return None
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def allchildren(self):
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"return a list of all of the direct children of this node"
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return self.hunks
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def __getattr__(self, name):
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return getattr(self.nonuiheader, name)
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class uihunkline(patchnode):
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"represents a changed line in a hunk"
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def __init__(self, linetext, hunk):
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self.linetext = linetext
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self.applied = True
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# the parent hunk to which this line belongs
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self.hunk = hunk
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# folding lines currently is not used/needed, but this flag is needed
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# in the previtem method.
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self.folded = False
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def prettystr(self):
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return self.linetext
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def nextsibling(self):
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numlinesinhunk = len(self.hunk.changedlines)
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indexofthisline = self.hunk.changedlines.index(self)
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if (indexofthisline < numlinesinhunk - 1):
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nextline = self.hunk.changedlines[indexofthisline + 1]
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return nextline
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else:
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return None
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def prevsibling(self):
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indexofthisline = self.hunk.changedlines.index(self)
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if indexofthisline > 0:
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previousline = self.hunk.changedlines[indexofthisline - 1]
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return previousline
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else:
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return None
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def parentitem(self):
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"return the parent to the current item"
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return self.hunk
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def firstchild(self):
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"return the first child of this item, if one exists. otherwise None."
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# hunk-lines don't have children
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return None
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def lastchild(self):
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"return the last child of this item, if one exists. otherwise None."
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# hunk-lines don't have children
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return None
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class uihunk(patchnode):
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"""ui patch hunk, wraps a hunk and keep track of ui behavior """
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maxcontext = 3
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def __init__(self, hunk, header):
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self._hunk = hunk
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self.changedlines = [uihunkline(line, self) for line in hunk.hunk]
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self.header = header
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# used at end for detecting how many removed lines were un-applied
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self.originalremoved = self.removed
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# flag to indicate whether to display as folded/unfolded to user
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self.folded = True
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# flag to indicate whether to apply this chunk
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self.applied = True
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# flag which only affects the status display indicating if a node's
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# children are partially applied (i.e. some applied, some not).
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self.partial = False
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def nextsibling(self):
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numhunksinheader = len(self.header.hunks)
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indexofthishunk = self.header.hunks.index(self)
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if (indexofthishunk < numhunksinheader - 1):
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nexthunk = self.header.hunks[indexofthishunk + 1]
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return nexthunk
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else:
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return None
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def prevsibling(self):
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indexofthishunk = self.header.hunks.index(self)
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if indexofthishunk > 0:
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previoushunk = self.header.hunks[indexofthishunk - 1]
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return previoushunk
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else:
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return None
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def parentitem(self):
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"return the parent to the current item"
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return self.header
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def firstchild(self):
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"return the first child of this item, if one exists. otherwise None."
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if len(self.changedlines) > 0:
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return self.changedlines[0]
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else:
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return None
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def lastchild(self):
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"return the last child of this item, if one exists. otherwise None."
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if len(self.changedlines) > 0:
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return self.changedlines[-1]
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else:
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return None
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def allchildren(self):
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"return a list of all of the direct children of this node"
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return self.changedlines
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def countchanges(self):
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"""changedlines -> (n+,n-)"""
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add = len([l for l in self.changedlines if l.applied
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and l.prettystr()[0] == '+'])
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rem = len([l for l in self.changedlines if l.applied
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and l.prettystr()[0] == '-'])
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return add, rem
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def getfromtoline(self):
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# calculate the number of removed lines converted to context lines
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removedconvertedtocontext = self.originalremoved - self.removed
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contextlen = (len(self.before) + len(self.after) +
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removedconvertedtocontext)
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if self.after and self.after[-1] == '\\ No newline at end of file\n':
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contextlen -= 1
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fromlen = contextlen + self.removed
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tolen = contextlen + self.added
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# diffutils manual, section "2.2.2.2 detailed description of unified
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# format": "an empty hunk is considered to end at the line that
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# precedes the hunk."
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#
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# so, if either of hunks is empty, decrease its line start. --immerrr
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# but only do this if fromline > 0, to avoid having, e.g fromline=-1.
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fromline, toline = self.fromline, self.toline
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if fromline != 0:
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if fromlen == 0:
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fromline -= 1
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if tolen == 0:
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toline -= 1
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fromtoline = '@@ -%d,%d +%d,%d @@%s\n' % (
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fromline, fromlen, toline, tolen,
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self.proc and (' ' + self.proc))
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return fromtoline
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def write(self, fp):
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# updated self.added/removed, which are used by getfromtoline()
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self.added, self.removed = self.countchanges()
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fp.write(self.getfromtoline())
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hunklinelist = []
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# add the following to the list: (1) all applied lines, and
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# (2) all unapplied removal lines (convert these to context lines)
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for changedline in self.changedlines:
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changedlinestr = changedline.prettystr()
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if changedline.applied:
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hunklinelist.append(changedlinestr)
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elif changedlinestr[0] == "-":
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hunklinelist.append(" " + changedlinestr[1:])
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fp.write(''.join(self.before + hunklinelist + self.after))
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pretty = write
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def prettystr(self):
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x = stringio()
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self.pretty(x)
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return x.getvalue()
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def reversehunk(self):
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"""return a recordhunk which is the reverse of the hunk
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Assuming the displayed patch is diff(A, B) result. The returned hunk is
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intended to be applied to B, instead of A.
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For example, when A is "0\n1\n2\n6\n" and B is "0\n3\n4\n5\n6\n", and
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the user made the following selection:
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0
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[x] -1 [x]: selected
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[ ] -2 [ ]: not selected
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[x] +3
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[ ] +4
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[x] +5
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6
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This function returns a hunk like:
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0
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-3
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-4
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-5
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+1
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+4
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6
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Note "4" was first deleted then added. That's because "4" exists in B
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side and "-4" must exist between "-3" and "-5" to make the patch
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applicable to B.
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|
"""
|
|
|
dels = []
|
|
|
adds = []
|
|
|
for line in self.changedlines:
|
|
|
text = line.linetext
|
|
|
if line.applied:
|
|
|
if text[0] == '+':
|
|
|
dels.append(text[1:])
|
|
|
elif text[0] == '-':
|
|
|
adds.append(text[1:])
|
|
|
elif text[0] == '+':
|
|
|
dels.append(text[1:])
|
|
|
adds.append(text[1:])
|
|
|
hunk = ['-%s' % l for l in dels] + ['+%s' % l for l in adds]
|
|
|
h = self._hunk
|
|
|
return patchmod.recordhunk(h.header, h.toline, h.fromline, h.proc,
|
|
|
h.before, hunk, h.after)
|
|
|
|
|
|
def __getattr__(self, name):
|
|
|
return getattr(self._hunk, name)
|
|
|
|
|
|
def __repr__(self):
|
|
|
return '<hunk %r@%d>' % (self.filename(), self.fromline)
|
|
|
|
|
|
def filterpatch(ui, chunks, chunkselector, operation=None):
|
|
|
"""interactively filter patch chunks into applied-only chunks"""
|
|
|
chunks = list(chunks)
|
|
|
# convert chunks list into structure suitable for displaying/modifying
|
|
|
# with curses. create a list of headers only.
|
|
|
headers = [c for c in chunks if isinstance(c, patchmod.header)]
|
|
|
|
|
|
# if there are no changed files
|
|
|
if len(headers) == 0:
|
|
|
return [], {}
|
|
|
uiheaders = [uiheader(h) for h in headers]
|
|
|
# let user choose headers/hunks/lines, and mark their applied flags
|
|
|
# accordingly
|
|
|
ret = chunkselector(ui, uiheaders, operation=operation)
|
|
|
appliedhunklist = []
|
|
|
for hdr in uiheaders:
|
|
|
if (hdr.applied and
|
|
|
(hdr.special() or len([h for h in hdr.hunks if h.applied]) > 0)):
|
|
|
appliedhunklist.append(hdr)
|
|
|
fixoffset = 0
|
|
|
for hnk in hdr.hunks:
|
|
|
if hnk.applied:
|
|
|
appliedhunklist.append(hnk)
|
|
|
# adjust the 'to'-line offset of the hunk to be correct
|
|
|
# after de-activating some of the other hunks for this file
|
|
|
if fixoffset:
|
|
|
#hnk = copy.copy(hnk) # necessary??
|
|
|
hnk.toline += fixoffset
|
|
|
else:
|
|
|
fixoffset += hnk.removed - hnk.added
|
|
|
|
|
|
return (appliedhunklist, ret)
|
|
|
|
|
|
def chunkselector(ui, headerlist, operation=None):
|
|
|
"""
|
|
|
curses interface to get selection of chunks, and mark the applied flags
|
|
|
of the chosen chunks.
|
|
|
"""
|
|
|
ui.write(_('starting interactive selection\n'))
|
|
|
chunkselector = curseschunkselector(headerlist, ui, operation)
|
|
|
origsigtstp = sentinel = object()
|
|
|
if util.safehasattr(signal, 'SIGTSTP'):
|
|
|
origsigtstp = signal.getsignal(signal.SIGTSTP)
|
|
|
try:
|
|
|
curses.wrapper(chunkselector.main)
|
|
|
if chunkselector.initerr is not None:
|
|
|
raise error.Abort(chunkselector.initerr)
|
|
|
# ncurses does not restore signal handler for SIGTSTP
|
|
|
finally:
|
|
|
if origsigtstp is not sentinel:
|
|
|
signal.signal(signal.SIGTSTP, origsigtstp)
|
|
|
return chunkselector.opts
|
|
|
|
|
|
def testdecorator(testfn, f):
|
|
|
def u(*args, **kwargs):
|
|
|
return f(testfn, *args, **kwargs)
|
|
|
return u
|
|
|
|
|
|
def testchunkselector(testfn, ui, headerlist, operation=None):
|
|
|
"""
|
|
|
test interface to get selection of chunks, and mark the applied flags
|
|
|
of the chosen chunks.
|
|
|
"""
|
|
|
chunkselector = curseschunkselector(headerlist, ui, operation)
|
|
|
if testfn and os.path.exists(testfn):
|
|
|
testf = open(testfn)
|
|
|
testcommands = map(lambda x: x.rstrip('\n'), testf.readlines())
|
|
|
testf.close()
|
|
|
while True:
|
|
|
if chunkselector.handlekeypressed(testcommands.pop(0), test=True):
|
|
|
break
|
|
|
return chunkselector.opts
|
|
|
|
|
|
_headermessages = { # {operation: text}
|
|
|
'apply': _('Select hunks to apply'),
|
|
|
'discard': _('Select hunks to discard'),
|
|
|
None: _('Select hunks to record'),
|
|
|
}
|
|
|
|
|
|
class curseschunkselector(object):
|
|
|
def __init__(self, headerlist, ui, operation=None):
|
|
|
# put the headers into a patch object
|
|
|
self.headerlist = patch(headerlist)
|
|
|
|
|
|
self.ui = ui
|
|
|
self.opts = {}
|
|
|
|
|
|
self.errorstr = None
|
|
|
# list of all chunks
|
|
|
self.chunklist = []
|
|
|
for h in headerlist:
|
|
|
self.chunklist.append(h)
|
|
|
self.chunklist.extend(h.hunks)
|
|
|
|
|
|
# dictionary mapping (fgcolor, bgcolor) pairs to the
|
|
|
# corresponding curses color-pair value.
|
|
|
self.colorpairs = {}
|
|
|
# maps custom nicknames of color-pairs to curses color-pair values
|
|
|
self.colorpairnames = {}
|
|
|
|
|
|
# Honor color setting of ui section. Keep colored setup as
|
|
|
# long as not explicitly set to a falsy value - especially,
|
|
|
# when not set at all. This is to stay most compatible with
|
|
|
# previous (color only) behaviour.
|
|
|
uicolor = util.parsebool(self.ui.config('ui', 'color'))
|
|
|
self.usecolor = uicolor is not False
|
|
|
|
|
|
# the currently selected header, hunk, or hunk-line
|
|
|
self.currentselecteditem = self.headerlist[0]
|
|
|
|
|
|
# updated when printing out patch-display -- the 'lines' here are the
|
|
|
# line positions *in the pad*, not on the screen.
|
|
|
self.selecteditemstartline = 0
|
|
|
self.selecteditemendline = None
|
|
|
|
|
|
# define indentation levels
|
|
|
self.headerindentnumchars = 0
|
|
|
self.hunkindentnumchars = 3
|
|
|
self.hunklineindentnumchars = 6
|
|
|
|
|
|
# the first line of the pad to print to the screen
|
|
|
self.firstlineofpadtoprint = 0
|
|
|
|
|
|
# keeps track of the number of lines in the pad
|
|
|
self.numpadlines = None
|
|
|
|
|
|
self.numstatuslines = 1
|
|
|
|
|
|
# keep a running count of the number of lines printed to the pad
|
|
|
# (used for determining when the selected item begins/ends)
|
|
|
self.linesprintedtopadsofar = 0
|
|
|
|
|
|
# the first line of the pad which is visible on the screen
|
|
|
self.firstlineofpadtoprint = 0
|
|
|
|
|
|
# stores optional text for a commit comment provided by the user
|
|
|
self.commenttext = ""
|
|
|
|
|
|
# if the last 'toggle all' command caused all changes to be applied
|
|
|
self.waslasttoggleallapplied = True
|
|
|
|
|
|
# affects some ui text
|
|
|
if operation not in _headermessages:
|
|
|
raise error.ProgrammingError('unexpected operation: %s' % operation)
|
|
|
self.operation = operation
|
|
|
|
|
|
def uparrowevent(self):
|
|
|
"""
|
|
|
try to select the previous item to the current item that has the
|
|
|
most-indented level. for example, if a hunk is selected, try to select
|
|
|
the last hunkline of the hunk prior to the selected hunk. or, if
|
|
|
the first hunkline of a hunk is currently selected, then select the
|
|
|
hunk itself.
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
|
|
|
nextitem = currentitem.previtem()
|
|
|
|
|
|
if nextitem is None:
|
|
|
# if no parent item (i.e. currentitem is the first header), then
|
|
|
# no change...
|
|
|
nextitem = currentitem
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def uparrowshiftevent(self):
|
|
|
"""
|
|
|
select (if possible) the previous item on the same level as the
|
|
|
currently selected item. otherwise, select (if possible) the
|
|
|
parent-item of the currently selected item.
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
nextitem = currentitem.prevsibling()
|
|
|
# if there's no previous sibling, try choosing the parent
|
|
|
if nextitem is None:
|
|
|
nextitem = currentitem.parentitem()
|
|
|
if nextitem is None:
|
|
|
# if no parent item (i.e. currentitem is the first header), then
|
|
|
# no change...
|
|
|
nextitem = currentitem
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def downarrowevent(self):
|
|
|
"""
|
|
|
try to select the next item to the current item that has the
|
|
|
most-indented level. for example, if a hunk is selected, select
|
|
|
the first hunkline of the selected hunk. or, if the last hunkline of
|
|
|
a hunk is currently selected, then select the next hunk, if one exists,
|
|
|
or if not, the next header if one exists.
|
|
|
"""
|
|
|
#self.startprintline += 1 #debug
|
|
|
currentitem = self.currentselecteditem
|
|
|
|
|
|
nextitem = currentitem.nextitem()
|
|
|
# if there's no next item, keep the selection as-is
|
|
|
if nextitem is None:
|
|
|
nextitem = currentitem
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def downarrowshiftevent(self):
|
|
|
"""
|
|
|
select (if possible) the next item on the same level as the currently
|
|
|
selected item. otherwise, select (if possible) the next item on the
|
|
|
same level as the parent item of the currently selected item.
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
nextitem = currentitem.nextsibling()
|
|
|
# if there's no next sibling, try choosing the parent's nextsibling
|
|
|
if nextitem is None:
|
|
|
try:
|
|
|
nextitem = currentitem.parentitem().nextsibling()
|
|
|
except AttributeError:
|
|
|
# parentitem returned None, so nextsibling() can't be called
|
|
|
nextitem = None
|
|
|
if nextitem is None:
|
|
|
# if parent has no next sibling, then no change...
|
|
|
nextitem = currentitem
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def rightarrowevent(self):
|
|
|
"""
|
|
|
select (if possible) the first of this item's child-items.
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
nextitem = currentitem.firstchild()
|
|
|
|
|
|
# turn off folding if we want to show a child-item
|
|
|
if currentitem.folded:
|
|
|
self.togglefolded(currentitem)
|
|
|
|
|
|
if nextitem is None:
|
|
|
# if no next item on parent-level, then no change...
|
|
|
nextitem = currentitem
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def leftarrowevent(self):
|
|
|
"""
|
|
|
if the current item can be folded (i.e. it is an unfolded header or
|
|
|
hunk), then fold it. otherwise try select (if possible) the parent
|
|
|
of this item.
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
|
|
|
# try to fold the item
|
|
|
if not isinstance(currentitem, uihunkline):
|
|
|
if not currentitem.folded:
|
|
|
self.togglefolded(item=currentitem)
|
|
|
return
|
|
|
|
|
|
# if it can't be folded, try to select the parent item
|
|
|
nextitem = currentitem.parentitem()
|
|
|
|
|
|
if nextitem is None:
|
|
|
# if no item on parent-level, then no change...
|
|
|
nextitem = currentitem
|
|
|
if not nextitem.folded:
|
|
|
self.togglefolded(item=nextitem)
|
|
|
|
|
|
self.currentselecteditem = nextitem
|
|
|
|
|
|
def leftarrowshiftevent(self):
|
|
|
"""
|
|
|
select the header of the current item (or fold current item if the
|
|
|
current item is already a header).
|
|
|
"""
|
|
|
currentitem = self.currentselecteditem
|
|
|
|
|
|
if isinstance(currentitem, uiheader):
|
|
|
if not currentitem.folded:
|
|
|
self.togglefolded(item=currentitem)
|
|
|
return
|
|
|
|
|
|
# select the parent item recursively until we're at a header
|
|
|
while True:
|
|
|
nextitem = currentitem.parentitem()
|
|
|
if nextitem is None:
|
|
|
break
|
|
|
else:
|
|
|
currentitem = nextitem
|
|
|
|
|
|
self.currentselecteditem = currentitem
|
|
|
|
|
|
def updatescroll(self):
|
|
|
"scroll the screen to fully show the currently-selected"
|
|
|
selstart = self.selecteditemstartline
|
|
|
selend = self.selecteditemendline
|
|
|
|
|
|
padstart = self.firstlineofpadtoprint
|
|
|
padend = padstart + self.yscreensize - self.numstatuslines - 1
|
|
|
# 'buffered' pad start/end values which scroll with a certain
|
|
|
# top/bottom context margin
|
|
|
padstartbuffered = padstart + 3
|
|
|
padendbuffered = padend - 3
|
|
|
|
|
|
if selend > padendbuffered:
|
|
|
self.scrolllines(selend - padendbuffered)
|
|
|
elif selstart < padstartbuffered:
|
|
|
# negative values scroll in pgup direction
|
|
|
self.scrolllines(selstart - padstartbuffered)
|
|
|
|
|
|
def scrolllines(self, numlines):
|
|
|
"scroll the screen up (down) by numlines when numlines >0 (<0)."
|
|
|
self.firstlineofpadtoprint += numlines
|
|
|
if self.firstlineofpadtoprint < 0:
|
|
|
self.firstlineofpadtoprint = 0
|
|
|
if self.firstlineofpadtoprint > self.numpadlines - 1:
|
|
|
self.firstlineofpadtoprint = self.numpadlines - 1
|
|
|
|
|
|
def toggleapply(self, item=None):
|
|
|
"""
|
|
|
toggle the applied flag of the specified item. if no item is specified,
|
|
|
toggle the flag of the currently selected item.
|
|
|
"""
|
|
|
if item is None:
|
|
|
item = self.currentselecteditem
|
|
|
|
|
|
item.applied = not item.applied
|
|
|
|
|
|
if isinstance(item, uiheader):
|
|
|
item.partial = False
|
|
|
if item.applied:
|
|
|
# apply all its hunks
|
|
|
for hnk in item.hunks:
|
|
|
hnk.applied = True
|
|
|
# apply all their hunklines
|
|
|
for hunkline in hnk.changedlines:
|
|
|
hunkline.applied = True
|
|
|
else:
|
|
|
# un-apply all its hunks
|
|
|
for hnk in item.hunks:
|
|
|
hnk.applied = False
|
|
|
hnk.partial = False
|
|
|
# un-apply all their hunklines
|
|
|
for hunkline in hnk.changedlines:
|
|
|
hunkline.applied = False
|
|
|
elif isinstance(item, uihunk):
|
|
|
item.partial = False
|
|
|
# apply all it's hunklines
|
|
|
for hunkline in item.changedlines:
|
|
|
hunkline.applied = item.applied
|
|
|
|
|
|
siblingappliedstatus = [hnk.applied for hnk in item.header.hunks]
|
|
|
allsiblingsapplied = not (False in siblingappliedstatus)
|
|
|
nosiblingsapplied = not (True in siblingappliedstatus)
|
|
|
|
|
|
siblingspartialstatus = [hnk.partial for hnk in item.header.hunks]
|
|
|
somesiblingspartial = (True in siblingspartialstatus)
|
|
|
|
|
|
#cases where applied or partial should be removed from header
|
|
|
|
|
|
# if no 'sibling' hunks are applied (including this hunk)
|
|
|
if nosiblingsapplied:
|
|
|
if not item.header.special():
|
|
|
item.header.applied = False
|
|
|
item.header.partial = False
|
|
|
else: # some/all parent siblings are applied
|
|
|
item.header.applied = True
|
|
|
item.header.partial = (somesiblingspartial or
|
|
|
not allsiblingsapplied)
|
|
|
|
|
|
elif isinstance(item, uihunkline):
|
|
|
siblingappliedstatus = [ln.applied for ln in item.hunk.changedlines]
|
|
|
allsiblingsapplied = not (False in siblingappliedstatus)
|
|
|
nosiblingsapplied = not (True in siblingappliedstatus)
|
|
|
|
|
|
# if no 'sibling' lines are applied
|
|
|
if nosiblingsapplied:
|
|
|
item.hunk.applied = False
|
|
|
item.hunk.partial = False
|
|
|
elif allsiblingsapplied:
|
|
|
item.hunk.applied = True
|
|
|
item.hunk.partial = False
|
|
|
else: # some siblings applied
|
|
|
item.hunk.applied = True
|
|
|
item.hunk.partial = True
|
|
|
|
|
|
parentsiblingsapplied = [hnk.applied for hnk
|
|
|
in item.hunk.header.hunks]
|
|
|
noparentsiblingsapplied = not (True in parentsiblingsapplied)
|
|
|
allparentsiblingsapplied = not (False in parentsiblingsapplied)
|
|
|
|
|
|
parentsiblingspartial = [hnk.partial for hnk
|
|
|
in item.hunk.header.hunks]
|
|
|
someparentsiblingspartial = (True in parentsiblingspartial)
|
|
|
|
|
|
# if all parent hunks are not applied, un-apply header
|
|
|
if noparentsiblingsapplied:
|
|
|
if not item.hunk.header.special():
|
|
|
item.hunk.header.applied = False
|
|
|
item.hunk.header.partial = False
|
|
|
# set the applied and partial status of the header if needed
|
|
|
else: # some/all parent siblings are applied
|
|
|
item.hunk.header.applied = True
|
|
|
item.hunk.header.partial = (someparentsiblingspartial or
|
|
|
not allparentsiblingsapplied)
|
|
|
|
|
|
def toggleall(self):
|
|
|
"toggle the applied flag of all items."
|
|
|
if self.waslasttoggleallapplied: # then unapply them this time
|
|
|
for item in self.headerlist:
|
|
|
if item.applied:
|
|
|
self.toggleapply(item)
|
|
|
else:
|
|
|
for item in self.headerlist:
|
|
|
if not item.applied:
|
|
|
self.toggleapply(item)
|
|
|
self.waslasttoggleallapplied = not self.waslasttoggleallapplied
|
|
|
|
|
|
def togglefolded(self, item=None, foldparent=False):
|
|
|
"toggle folded flag of specified item (defaults to currently selected)"
|
|
|
if item is None:
|
|
|
item = self.currentselecteditem
|
|
|
if foldparent or (isinstance(item, uiheader) and item.neverunfolded):
|
|
|
if not isinstance(item, uiheader):
|
|
|
# we need to select the parent item in this case
|
|
|
self.currentselecteditem = item = item.parentitem()
|
|
|
elif item.neverunfolded:
|
|
|
item.neverunfolded = False
|
|
|
|
|
|
# also fold any foldable children of the parent/current item
|
|
|
if isinstance(item, uiheader): # the original or 'new' item
|
|
|
for child in item.allchildren():
|
|
|
child.folded = not item.folded
|
|
|
|
|
|
if isinstance(item, (uiheader, uihunk)):
|
|
|
item.folded = not item.folded
|
|
|
|
|
|
def alignstring(self, instr, window):
|
|
|
"""
|
|
|
add whitespace to the end of a string in order to make it fill
|
|
|
the screen in the x direction. the current cursor position is
|
|
|
taken into account when making this calculation. the string can span
|
|
|
multiple lines.
|
|
|
"""
|
|
|
y, xstart = window.getyx()
|
|
|
width = self.xscreensize
|
|
|
# turn tabs into spaces
|
|
|
instr = instr.expandtabs(4)
|
|
|
strwidth = encoding.colwidth(instr)
|
|
|
numspaces = (width - ((strwidth + xstart) % width) - 1)
|
|
|
return instr + " " * numspaces + "\n"
|
|
|
|
|
|
def printstring(self, window, text, fgcolor=None, bgcolor=None, pair=None,
|
|
|
pairname=None, attrlist=None, towin=True, align=True, showwhtspc=False):
|
|
|
"""
|
|
|
print the string, text, with the specified colors and attributes, to
|
|
|
the specified curses window object.
|
|
|
|
|
|
the foreground and background colors are of the form
|
|
|
curses.color_xxxx, where xxxx is one of: [black, blue, cyan, green,
|
|
|
magenta, red, white, yellow]. if pairname is provided, a color
|
|
|
pair will be looked up in the self.colorpairnames dictionary.
|
|
|
|
|
|
attrlist is a list containing text attributes in the form of
|
|
|
curses.a_xxxx, where xxxx can be: [bold, dim, normal, standout,
|
|
|
underline].
|
|
|
|
|
|
if align == True, whitespace is added to the printed string such that
|
|
|
the string stretches to the right border of the window.
|
|
|
|
|
|
if showwhtspc == True, trailing whitespace of a string is highlighted.
|
|
|
"""
|
|
|
# preprocess the text, converting tabs to spaces
|
|
|
text = text.expandtabs(4)
|
|
|
# strip \n, and convert control characters to ^[char] representation
|
|
|
text = re.sub(br'[\x00-\x08\x0a-\x1f]',
|
|
|
lambda m:'^' + chr(ord(m.group()) + 64), text.strip('\n'))
|
|
|
|
|
|
if pair is not None:
|
|
|
colorpair = pair
|
|
|
elif pairname is not None:
|
|
|
colorpair = self.colorpairnames[pairname]
|
|
|
else:
|
|
|
if fgcolor is None:
|
|
|
fgcolor = -1
|
|
|
if bgcolor is None:
|
|
|
bgcolor = -1
|
|
|
if (fgcolor, bgcolor) in self.colorpairs:
|
|
|
colorpair = self.colorpairs[(fgcolor, bgcolor)]
|
|
|
else:
|
|
|
colorpair = self.getcolorpair(fgcolor, bgcolor)
|
|
|
# add attributes if possible
|
|
|
if attrlist is None:
|
|
|
attrlist = []
|
|
|
if colorpair < 256:
|
|
|
# then it is safe to apply all attributes
|
|
|
for textattr in attrlist:
|
|
|
colorpair |= textattr
|
|
|
else:
|
|
|
# just apply a select few (safe?) attributes
|
|
|
for textattr in (curses.A_UNDERLINE, curses.A_BOLD):
|
|
|
if textattr in attrlist:
|
|
|
colorpair |= textattr
|
|
|
|
|
|
y, xstart = self.chunkpad.getyx()
|
|
|
t = "" # variable for counting lines printed
|
|
|
# if requested, show trailing whitespace
|
|
|
if showwhtspc:
|
|
|
origlen = len(text)
|
|
|
text = text.rstrip(' \n') # tabs have already been expanded
|
|
|
strippedlen = len(text)
|
|
|
numtrailingspaces = origlen - strippedlen
|
|
|
|
|
|
if towin:
|
|
|
window.addstr(text, colorpair)
|
|
|
t += text
|
|
|
|
|
|
if showwhtspc:
|
|
|
wscolorpair = colorpair | curses.A_REVERSE
|
|
|
if towin:
|
|
|
for i in range(numtrailingspaces):
|
|
|
window.addch(curses.ACS_CKBOARD, wscolorpair)
|
|
|
t += " " * numtrailingspaces
|
|
|
|
|
|
if align:
|
|
|
if towin:
|
|
|
extrawhitespace = self.alignstring("", window)
|
|
|
window.addstr(extrawhitespace, colorpair)
|
|
|
else:
|
|
|
# need to use t, since the x position hasn't incremented
|
|
|
extrawhitespace = self.alignstring(t, window)
|
|
|
t += extrawhitespace
|
|
|
|
|
|
# is reset to 0 at the beginning of printitem()
|
|
|
|
|
|
linesprinted = (xstart + len(t)) / self.xscreensize
|
|
|
self.linesprintedtopadsofar += linesprinted
|
|
|
return t
|
|
|
|
|
|
def _getstatuslinesegments(self):
|
|
|
"""-> [str]. return segments"""
|
|
|
selected = self.currentselecteditem.applied
|
|
|
spaceselect = _('space: select')
|
|
|
spacedeselect = _('space: deselect')
|
|
|
# Format the selected label into a place as long as the longer of the
|
|
|
# two possible labels. This may vary by language.
|
|
|
spacelen = max(len(spaceselect), len(spacedeselect))
|
|
|
selectedlabel = '%-*s' % (spacelen,
|
|
|
spacedeselect if selected else spaceselect)
|
|
|
segments = [
|
|
|
_headermessages[self.operation],
|
|
|
'-',
|
|
|
_('[x]=selected **=collapsed'),
|
|
|
_('c: confirm'),
|
|
|
_('q: abort'),
|
|
|
_('arrow keys: move/expand/collapse'),
|
|
|
selectedlabel,
|
|
|
_('?: help'),
|
|
|
]
|
|
|
return segments
|
|
|
|
|
|
def _getstatuslines(self):
|
|
|
"""() -> [str]. return short help used in the top status window"""
|
|
|
if self.errorstr is not None:
|
|
|
lines = [self.errorstr, _('Press any key to continue')]
|
|
|
else:
|
|
|
# wrap segments to lines
|
|
|
segments = self._getstatuslinesegments()
|
|
|
width = self.xscreensize
|
|
|
lines = []
|
|
|
lastwidth = width
|
|
|
for s in segments:
|
|
|
w = encoding.colwidth(s)
|
|
|
sep = ' ' * (1 + (s and s[0] not in '-['))
|
|
|
if lastwidth + w + len(sep) >= width:
|
|
|
lines.append(s)
|
|
|
lastwidth = w
|
|
|
else:
|
|
|
lines[-1] += sep + s
|
|
|
lastwidth += w + len(sep)
|
|
|
if len(lines) != self.numstatuslines:
|
|
|
self.numstatuslines = len(lines)
|
|
|
self.statuswin.resize(self.numstatuslines, self.xscreensize)
|
|
|
return [util.ellipsis(l, self.xscreensize - 1) for l in lines]
|
|
|
|
|
|
def updatescreen(self):
|
|
|
self.statuswin.erase()
|
|
|
self.chunkpad.erase()
|
|
|
|
|
|
printstring = self.printstring
|
|
|
|
|
|
# print out the status lines at the top
|
|
|
try:
|
|
|
for line in self._getstatuslines():
|
|
|
printstring(self.statuswin, line, pairname="legend")
|
|
|
self.statuswin.refresh()
|
|
|
except curses.error:
|
|
|
pass
|
|
|
if self.errorstr is not None:
|
|
|
return
|
|
|
|
|
|
# print out the patch in the remaining part of the window
|
|
|
try:
|
|
|
self.printitem()
|
|
|
self.updatescroll()
|
|
|
self.chunkpad.refresh(self.firstlineofpadtoprint, 0,
|
|
|
self.numstatuslines, 0,
|
|
|
self.yscreensize - self.numstatuslines,
|
|
|
self.xscreensize)
|
|
|
except curses.error:
|
|
|
pass
|
|
|
|
|
|
def getstatusprefixstring(self, item):
|
|
|
"""
|
|
|
create a string to prefix a line with which indicates whether 'item'
|
|
|
is applied and/or folded.
|
|
|
"""
|
|
|
|
|
|
# create checkbox string
|
|
|
if item.applied:
|
|
|
if not isinstance(item, uihunkline) and item.partial:
|
|
|
checkbox = "[~]"
|
|
|
else:
|
|
|
checkbox = "[x]"
|
|
|
else:
|
|
|
checkbox = "[ ]"
|
|
|
|
|
|
try:
|
|
|
if item.folded:
|
|
|
checkbox += "**"
|
|
|
if isinstance(item, uiheader):
|
|
|
# one of "m", "a", or "d" (modified, added, deleted)
|
|
|
filestatus = item.changetype
|
|
|
|
|
|
checkbox += filestatus + " "
|
|
|
else:
|
|
|
checkbox += " "
|
|
|
if isinstance(item, uiheader):
|
|
|
# add two more spaces for headers
|
|
|
checkbox += " "
|
|
|
except AttributeError: # not foldable
|
|
|
checkbox += " "
|
|
|
|
|
|
return checkbox
|
|
|
|
|
|
def printheader(self, header, selected=False, towin=True,
|
|
|
ignorefolding=False):
|
|
|
"""
|
|
|
print the header to the pad. if countlines is True, don't print
|
|
|
anything, but just count the number of lines which would be printed.
|
|
|
"""
|
|
|
|
|
|
outstr = ""
|
|
|
text = header.prettystr()
|
|
|
chunkindex = self.chunklist.index(header)
|
|
|
|
|
|
if chunkindex != 0 and not header.folded:
|
|
|
# add separating line before headers
|
|
|
outstr += self.printstring(self.chunkpad, '_' * self.xscreensize,
|
|
|
towin=towin, align=False)
|
|
|
# select color-pair based on if the header is selected
|
|
|
colorpair = self.getcolorpair(name=selected and "selected" or "normal",
|
|
|
attrlist=[curses.A_BOLD])
|
|
|
|
|
|
# print out each line of the chunk, expanding it to screen width
|
|
|
|
|
|
# number of characters to indent lines on this level by
|
|
|
indentnumchars = 0
|
|
|
checkbox = self.getstatusprefixstring(header)
|
|
|
if not header.folded or ignorefolding:
|
|
|
textlist = text.split("\n")
|
|
|
linestr = checkbox + textlist[0]
|
|
|
else:
|
|
|
linestr = checkbox + header.filename()
|
|
|
outstr += self.printstring(self.chunkpad, linestr, pair=colorpair,
|
|
|
towin=towin)
|
|
|
if not header.folded or ignorefolding:
|
|
|
if len(textlist) > 1:
|
|
|
for line in textlist[1:]:
|
|
|
linestr = " "*(indentnumchars + len(checkbox)) + line
|
|
|
outstr += self.printstring(self.chunkpad, linestr,
|
|
|
pair=colorpair, towin=towin)
|
|
|
|
|
|
return outstr
|
|
|
|
|
|
def printhunklinesbefore(self, hunk, selected=False, towin=True,
|
|
|
ignorefolding=False):
|
|
|
"includes start/end line indicator"
|
|
|
outstr = ""
|
|
|
# where hunk is in list of siblings
|
|
|
hunkindex = hunk.header.hunks.index(hunk)
|
|
|
|
|
|
if hunkindex != 0:
|
|
|
# add separating line before headers
|
|
|
outstr += self.printstring(self.chunkpad, ' '*self.xscreensize,
|
|
|
towin=towin, align=False)
|
|
|
|
|
|
colorpair = self.getcolorpair(name=selected and "selected" or "normal",
|
|
|
attrlist=[curses.A_BOLD])
|
|
|
|
|
|
# print out from-to line with checkbox
|
|
|
checkbox = self.getstatusprefixstring(hunk)
|
|
|
|
|
|
lineprefix = " "*self.hunkindentnumchars + checkbox
|
|
|
frtoline = " " + hunk.getfromtoline().strip("\n")
|
|
|
|
|
|
outstr += self.printstring(self.chunkpad, lineprefix, towin=towin,
|
|
|
align=False) # add uncolored checkbox/indent
|
|
|
outstr += self.printstring(self.chunkpad, frtoline, pair=colorpair,
|
|
|
towin=towin)
|
|
|
|
|
|
if hunk.folded and not ignorefolding:
|
|
|
# skip remainder of output
|
|
|
return outstr
|
|
|
|
|
|
# print out lines of the chunk preceeding changed-lines
|
|
|
for line in hunk.before:
|
|
|
linestr = " "*(self.hunklineindentnumchars + len(checkbox)) + line
|
|
|
outstr += self.printstring(self.chunkpad, linestr, towin=towin)
|
|
|
|
|
|
return outstr
|
|
|
|
|
|
def printhunklinesafter(self, hunk, towin=True, ignorefolding=False):
|
|
|
outstr = ""
|
|
|
if hunk.folded and not ignorefolding:
|
|
|
return outstr
|
|
|
|
|
|
# a bit superfluous, but to avoid hard-coding indent amount
|
|
|
checkbox = self.getstatusprefixstring(hunk)
|
|
|
for line in hunk.after:
|
|
|
linestr = " "*(self.hunklineindentnumchars + len(checkbox)) + line
|
|
|
outstr += self.printstring(self.chunkpad, linestr, towin=towin)
|
|
|
|
|
|
return outstr
|
|
|
|
|
|
def printhunkchangedline(self, hunkline, selected=False, towin=True):
|
|
|
outstr = ""
|
|
|
checkbox = self.getstatusprefixstring(hunkline)
|
|
|
|
|
|
linestr = hunkline.prettystr().strip("\n")
|
|
|
|
|
|
# select color-pair based on whether line is an addition/removal
|
|
|
if selected:
|
|
|
colorpair = self.getcolorpair(name="selected")
|
|
|
elif linestr.startswith("+"):
|
|
|
colorpair = self.getcolorpair(name="addition")
|
|
|
elif linestr.startswith("-"):
|
|
|
colorpair = self.getcolorpair(name="deletion")
|
|
|
elif linestr.startswith("\\"):
|
|
|
colorpair = self.getcolorpair(name="normal")
|
|
|
|
|
|
lineprefix = " "*self.hunklineindentnumchars + checkbox
|
|
|
outstr += self.printstring(self.chunkpad, lineprefix, towin=towin,
|
|
|
align=False) # add uncolored checkbox/indent
|
|
|
outstr += self.printstring(self.chunkpad, linestr, pair=colorpair,
|
|
|
towin=towin, showwhtspc=True)
|
|
|
return outstr
|
|
|
|
|
|
def printitem(self, item=None, ignorefolding=False, recursechildren=True,
|
|
|
towin=True):
|
|
|
"""
|
|
|
use __printitem() to print the the specified item.applied.
|
|
|
if item is not specified, then print the entire patch.
|
|
|
(hiding folded elements, etc. -- see __printitem() docstring)
|
|
|
"""
|
|
|
|
|
|
if item is None:
|
|
|
item = self.headerlist
|
|
|
if recursechildren:
|
|
|
self.linesprintedtopadsofar = 0
|
|
|
|
|
|
outstr = []
|
|
|
self.__printitem(item, ignorefolding, recursechildren, outstr,
|
|
|
towin=towin)
|
|
|
return ''.join(outstr)
|
|
|
|
|
|
def outofdisplayedarea(self):
|
|
|
y, _ = self.chunkpad.getyx() # cursor location
|
|
|
# * 2 here works but an optimization would be the max number of
|
|
|
# consecutive non selectable lines
|
|
|
# i.e the max number of context line for any hunk in the patch
|
|
|
miny = min(0, self.firstlineofpadtoprint - self.yscreensize)
|
|
|
maxy = self.firstlineofpadtoprint + self.yscreensize * 2
|
|
|
return y < miny or y > maxy
|
|
|
|
|
|
def handleselection(self, item, recursechildren):
|
|
|
selected = (item is self.currentselecteditem)
|
|
|
if selected and recursechildren:
|
|
|
# assumes line numbering starting from line 0
|
|
|
self.selecteditemstartline = self.linesprintedtopadsofar
|
|
|
selecteditemlines = self.getnumlinesdisplayed(item,
|
|
|
recursechildren=False)
|
|
|
self.selecteditemendline = (self.selecteditemstartline +
|
|
|
selecteditemlines - 1)
|
|
|
return selected
|
|
|
|
|
|
def __printitem(self, item, ignorefolding, recursechildren, outstr,
|
|
|
towin=True):
|
|
|
"""
|
|
|
recursive method for printing out patch/header/hunk/hunk-line data to
|
|
|
screen. also returns a string with all of the content of the displayed
|
|
|
patch (not including coloring, etc.).
|
|
|
|
|
|
if ignorefolding is True, then folded items are printed out.
|
|
|
|
|
|
if recursechildren is False, then only print the item without its
|
|
|
child items.
|
|
|
"""
|
|
|
|
|
|
if towin and self.outofdisplayedarea():
|
|
|
return
|
|
|
|
|
|
selected = self.handleselection(item, recursechildren)
|
|
|
|
|
|
# patch object is a list of headers
|
|
|
if isinstance(item, patch):
|
|
|
if recursechildren:
|
|
|
for hdr in item:
|
|
|
self.__printitem(hdr, ignorefolding,
|
|
|
recursechildren, outstr, towin)
|
|
|
# todo: eliminate all isinstance() calls
|
|
|
if isinstance(item, uiheader):
|
|
|
outstr.append(self.printheader(item, selected, towin=towin,
|
|
|
ignorefolding=ignorefolding))
|
|
|
if recursechildren:
|
|
|
for hnk in item.hunks:
|
|
|
self.__printitem(hnk, ignorefolding,
|
|
|
recursechildren, outstr, towin)
|
|
|
elif (isinstance(item, uihunk) and
|
|
|
((not item.header.folded) or ignorefolding)):
|
|
|
# print the hunk data which comes before the changed-lines
|
|
|
outstr.append(self.printhunklinesbefore(item, selected, towin=towin,
|
|
|
ignorefolding=ignorefolding))
|
|
|
if recursechildren:
|
|
|
for l in item.changedlines:
|
|
|
self.__printitem(l, ignorefolding,
|
|
|
recursechildren, outstr, towin)
|
|
|
outstr.append(self.printhunklinesafter(item, towin=towin,
|
|
|
ignorefolding=ignorefolding))
|
|
|
elif (isinstance(item, uihunkline) and
|
|
|
((not item.hunk.folded) or ignorefolding)):
|
|
|
outstr.append(self.printhunkchangedline(item, selected,
|
|
|
towin=towin))
|
|
|
|
|
|
return outstr
|
|
|
|
|
|
def getnumlinesdisplayed(self, item=None, ignorefolding=False,
|
|
|
recursechildren=True):
|
|
|
"""
|
|
|
return the number of lines which would be displayed if the item were
|
|
|
to be printed to the display. the item will not be printed to the
|
|
|
display (pad).
|
|
|
if no item is given, assume the entire patch.
|
|
|
if ignorefolding is True, folded items will be unfolded when counting
|
|
|
the number of lines.
|
|
|
"""
|
|
|
|
|
|
# temporarily disable printing to windows by printstring
|
|
|
patchdisplaystring = self.printitem(item, ignorefolding,
|
|
|
recursechildren, towin=False)
|
|
|
numlines = len(patchdisplaystring) // self.xscreensize
|
|
|
return numlines
|
|
|
|
|
|
def sigwinchhandler(self, n, frame):
|
|
|
"handle window resizing"
|
|
|
try:
|
|
|
curses.endwin()
|
|
|
self.xscreensize, self.yscreensize = scmutil.termsize(self.ui)
|
|
|
self.statuswin.resize(self.numstatuslines, self.xscreensize)
|
|
|
self.numpadlines = self.getnumlinesdisplayed(ignorefolding=True) + 1
|
|
|
self.chunkpad = curses.newpad(self.numpadlines, self.xscreensize)
|
|
|
except curses.error:
|
|
|
pass
|
|
|
|
|
|
def getcolorpair(self, fgcolor=None, bgcolor=None, name=None,
|
|
|
attrlist=None):
|
|
|
"""
|
|
|
get a curses color pair, adding it to self.colorpairs if it is not
|
|
|
already defined. an optional string, name, can be passed as a shortcut
|
|
|
for referring to the color-pair. by default, if no arguments are
|
|
|
specified, the white foreground / black background color-pair is
|
|
|
returned.
|
|
|
|
|
|
it is expected that this function will be used exclusively for
|
|
|
initializing color pairs, and not curses.init_pair().
|
|
|
|
|
|
attrlist is used to 'flavor' the returned color-pair. this information
|
|
|
is not stored in self.colorpairs. it contains attribute values like
|
|
|
curses.A_BOLD.
|
|
|
"""
|
|
|
|
|
|
if (name is not None) and name in self.colorpairnames:
|
|
|
# then get the associated color pair and return it
|
|
|
colorpair = self.colorpairnames[name]
|
|
|
else:
|
|
|
if fgcolor is None:
|
|
|
fgcolor = -1
|
|
|
if bgcolor is None:
|
|
|
bgcolor = -1
|
|
|
if (fgcolor, bgcolor) in self.colorpairs:
|
|
|
colorpair = self.colorpairs[(fgcolor, bgcolor)]
|
|
|
else:
|
|
|
pairindex = len(self.colorpairs) + 1
|
|
|
if self.usecolor:
|
|
|
curses.init_pair(pairindex, fgcolor, bgcolor)
|
|
|
colorpair = self.colorpairs[(fgcolor, bgcolor)] = (
|
|
|
curses.color_pair(pairindex))
|
|
|
if name is not None:
|
|
|
self.colorpairnames[name] = curses.color_pair(pairindex)
|
|
|
else:
|
|
|
cval = 0
|
|
|
if name is not None:
|
|
|
if name == 'selected':
|
|
|
cval = curses.A_REVERSE
|
|
|
self.colorpairnames[name] = cval
|
|
|
colorpair = self.colorpairs[(fgcolor, bgcolor)] = cval
|
|
|
|
|
|
# add attributes if possible
|
|
|
if attrlist is None:
|
|
|
attrlist = []
|
|
|
if colorpair < 256:
|
|
|
# then it is safe to apply all attributes
|
|
|
for textattr in attrlist:
|
|
|
colorpair |= textattr
|
|
|
else:
|
|
|
# just apply a select few (safe?) attributes
|
|
|
for textattrib in (curses.A_UNDERLINE, curses.A_BOLD):
|
|
|
if textattrib in attrlist:
|
|
|
colorpair |= textattrib
|
|
|
return colorpair
|
|
|
|
|
|
def initcolorpair(self, *args, **kwargs):
|
|
|
"same as getcolorpair."
|
|
|
self.getcolorpair(*args, **kwargs)
|
|
|
|
|
|
def helpwindow(self):
|
|
|
"print a help window to the screen. exit after any keypress."
|
|
|
helptext = _(
|
|
|
""" [press any key to return to the patch-display]
|
|
|
|
|
|
crecord allows you to interactively choose among the changes you have made,
|
|
|
and confirm only those changes you select for further processing by the command
|
|
|
you are running (commit/shelve/revert), after confirming the selected
|
|
|
changes, the unselected changes are still present in your working copy, so you
|
|
|
can use crecord multiple times to split large changes into smaller changesets.
|
|
|
the following are valid keystrokes:
|
|
|
|
|
|
[space] : (un-)select item ([~]/[x] = partly/fully applied)
|
|
|
A : (un-)select all items
|
|
|
up/down-arrow [k/j] : go to previous/next unfolded item
|
|
|
pgup/pgdn [K/J] : go to previous/next item of same type
|
|
|
right/left-arrow [l/h] : go to child item / parent item
|
|
|
shift-left-arrow [H] : go to parent header / fold selected header
|
|
|
f : fold / unfold item, hiding/revealing its children
|
|
|
F : fold / unfold parent item and all of its ancestors
|
|
|
ctrl-l : scroll the selected line to the top of the screen
|
|
|
m : edit / resume editing the commit message
|
|
|
e : edit the currently selected hunk
|
|
|
a : toggle amend mode, only with commit -i
|
|
|
c : confirm selected changes
|
|
|
r : review/edit and confirm selected changes
|
|
|
q : quit without confirming (no changes will be made)
|
|
|
? : help (what you're currently reading)""")
|
|
|
|
|
|
helpwin = curses.newwin(self.yscreensize, 0, 0, 0)
|
|
|
helplines = helptext.split("\n")
|
|
|
helplines = helplines + [" "]*(
|
|
|
self.yscreensize - self.numstatuslines - len(helplines) - 1)
|
|
|
try:
|
|
|
for line in helplines:
|
|
|
self.printstring(helpwin, line, pairname="legend")
|
|
|
except curses.error:
|
|
|
pass
|
|
|
helpwin.refresh()
|
|
|
try:
|
|
|
with self.ui.timeblockedsection('crecord'):
|
|
|
helpwin.getkey()
|
|
|
except curses.error:
|
|
|
pass
|
|
|
|
|
|
def commitMessageWindow(self):
|
|
|
"Create a temporary commit message editing window on the screen."
|
|
|
|
|
|
curses.raw()
|
|
|
curses.def_prog_mode()
|
|
|
curses.endwin()
|
|
|
self.commenttext = self.ui.edit(self.commenttext, self.ui.username())
|
|
|
curses.cbreak()
|
|
|
self.stdscr.refresh()
|
|
|
self.stdscr.keypad(1) # allow arrow-keys to continue to function
|
|
|
|
|
|
def confirmationwindow(self, windowtext):
|
|
|
"display an informational window, then wait for and return a keypress."
|
|
|
|
|
|
confirmwin = curses.newwin(self.yscreensize, 0, 0, 0)
|
|
|
try:
|
|
|
lines = windowtext.split("\n")
|
|
|
for line in lines:
|
|
|
self.printstring(confirmwin, line, pairname="selected")
|
|
|
except curses.error:
|
|
|
pass
|
|
|
self.stdscr.refresh()
|
|
|
confirmwin.refresh()
|
|
|
try:
|
|
|
with self.ui.timeblockedsection('crecord'):
|
|
|
response = chr(self.stdscr.getch())
|
|
|
except ValueError:
|
|
|
response = None
|
|
|
|
|
|
return response
|
|
|
|
|
|
def reviewcommit(self):
|
|
|
"""ask for 'y' to be pressed to confirm selected. return True if
|
|
|
confirmed."""
|
|
|
confirmtext = _(
|
|
|
"""if you answer yes to the following, the your currently chosen patch chunks
|
|
|
will be loaded into an editor. you may modify the patch from the editor, and
|
|
|
save the changes if you wish to change the patch. otherwise, you can just
|
|
|
close the editor without saving to accept the current patch as-is.
|
|
|
|
|
|
note: don't add/remove lines unless you also modify the range information.
|
|
|
failing to follow this rule will result in the commit aborting.
|
|
|
|
|
|
are you sure you want to review/edit and confirm the selected changes [yn]?
|
|
|
""")
|
|
|
with self.ui.timeblockedsection('crecord'):
|
|
|
response = self.confirmationwindow(confirmtext)
|
|
|
if response is None:
|
|
|
response = "n"
|
|
|
if response.lower().startswith("y"):
|
|
|
return True
|
|
|
else:
|
|
|
return False
|
|
|
|
|
|
def toggleamend(self, opts, test):
|
|
|
"""Toggle the amend flag.
|
|
|
|
|
|
When the amend flag is set, a commit will modify the most recently
|
|
|
committed changeset, instead of creating a new changeset. Otherwise, a
|
|
|
new changeset will be created (the normal commit behavior).
|
|
|
"""
|
|
|
|
|
|
try:
|
|
|
ver = float(util.version()[:3])
|
|
|
except ValueError:
|
|
|
ver = 1
|
|
|
if ver < 2.19:
|
|
|
msg = _("The amend option is unavailable with hg versions < 2.2\n\n"
|
|
|
"Press any key to continue.")
|
|
|
elif opts.get('amend') is None:
|
|
|
opts['amend'] = True
|
|
|
msg = _("Amend option is turned on -- committing the currently "
|
|
|
"selected changes will not create a new changeset, but "
|
|
|
"instead update the most recently committed changeset.\n\n"
|
|
|
"Press any key to continue.")
|
|
|
elif opts.get('amend') is True:
|
|
|
opts['amend'] = None
|
|
|
msg = _("Amend option is turned off -- committing the currently "
|
|
|
"selected changes will create a new changeset.\n\n"
|
|
|
"Press any key to continue.")
|
|
|
if not test:
|
|
|
self.confirmationwindow(msg)
|
|
|
|
|
|
def recenterdisplayedarea(self):
|
|
|
"""
|
|
|
once we scrolled with pg up pg down we can be pointing outside of the
|
|
|
display zone. we print the patch with towin=False to compute the
|
|
|
location of the selected item even though it is outside of the displayed
|
|
|
zone and then update the scroll.
|
|
|
"""
|
|
|
self.printitem(towin=False)
|
|
|
self.updatescroll()
|
|
|
|
|
|
def toggleedit(self, item=None, test=False):
|
|
|
"""
|
|
|
edit the currently selected chunk
|
|
|
"""
|
|
|
def updateui(self):
|
|
|
self.numpadlines = self.getnumlinesdisplayed(ignorefolding=True) + 1
|
|
|
self.chunkpad = curses.newpad(self.numpadlines, self.xscreensize)
|
|
|
self.updatescroll()
|
|
|
self.stdscr.refresh()
|
|
|
self.statuswin.refresh()
|
|
|
self.stdscr.keypad(1)
|
|
|
|
|
|
def editpatchwitheditor(self, chunk):
|
|
|
if chunk is None:
|
|
|
self.ui.write(_('cannot edit patch for whole file'))
|
|
|
self.ui.write("\n")
|
|
|
return None
|
|
|
if chunk.header.binary():
|
|
|
self.ui.write(_('cannot edit patch for binary file'))
|
|
|
self.ui.write("\n")
|
|
|
return None
|
|
|
|
|
|
# write the initial patch
|
|
|
patch = stringio()
|
|
|
patch.write(diffhelptext + hunkhelptext)
|
|
|
chunk.header.write(patch)
|
|
|
chunk.write(patch)
|
|
|
|
|
|
# start the editor and wait for it to complete
|
|
|
try:
|
|
|
patch = self.ui.edit(patch.getvalue(), "", action="diff")
|
|
|
except error.Abort as exc:
|
|
|
self.errorstr = str(exc)
|
|
|
return None
|
|
|
|
|
|
# remove comment lines
|
|
|
patch = [line + '\n' for line in patch.splitlines()
|
|
|
if not line.startswith('#')]
|
|
|
return patchmod.parsepatch(patch)
|
|
|
|
|
|
if item is None:
|
|
|
item = self.currentselecteditem
|
|
|
if isinstance(item, uiheader):
|
|
|
return
|
|
|
if isinstance(item, uihunkline):
|
|
|
item = item.parentitem()
|
|
|
if not isinstance(item, uihunk):
|
|
|
return
|
|
|
|
|
|
# To go back to that hunk or its replacement at the end of the edit
|
|
|
itemindex = item.parentitem().hunks.index(item)
|
|
|
|
|
|
beforeadded, beforeremoved = item.added, item.removed
|
|
|
newpatches = editpatchwitheditor(self, item)
|
|
|
if newpatches is None:
|
|
|
if not test:
|
|
|
updateui(self)
|
|
|
return
|
|
|
header = item.header
|
|
|
editedhunkindex = header.hunks.index(item)
|
|
|
hunksbefore = header.hunks[:editedhunkindex]
|
|
|
hunksafter = header.hunks[editedhunkindex + 1:]
|
|
|
newpatchheader = newpatches[0]
|
|
|
newhunks = [uihunk(h, header) for h in newpatchheader.hunks]
|
|
|
newadded = sum([h.added for h in newhunks])
|
|
|
newremoved = sum([h.removed for h in newhunks])
|
|
|
offset = (newadded - beforeadded) - (newremoved - beforeremoved)
|
|
|
|
|
|
for h in hunksafter:
|
|
|
h.toline += offset
|
|
|
for h in newhunks:
|
|
|
h.folded = False
|
|
|
header.hunks = hunksbefore + newhunks + hunksafter
|
|
|
if self.emptypatch():
|
|
|
header.hunks = hunksbefore + [item] + hunksafter
|
|
|
self.currentselecteditem = header
|
|
|
if len(header.hunks) > itemindex:
|
|
|
self.currentselecteditem = header.hunks[itemindex]
|
|
|
|
|
|
if not test:
|
|
|
updateui(self)
|
|
|
|
|
|
def emptypatch(self):
|
|
|
item = self.headerlist
|
|
|
if not item:
|
|
|
return True
|
|
|
for header in item:
|
|
|
if header.hunks:
|
|
|
return False
|
|
|
return True
|
|
|
|
|
|
def handlekeypressed(self, keypressed, test=False):
|
|
|
"""
|
|
|
Perform actions based on pressed keys.
|
|
|
|
|
|
Return true to exit the main loop.
|
|
|
"""
|
|
|
if keypressed in ["k", "KEY_UP"]:
|
|
|
self.uparrowevent()
|
|
|
if keypressed in ["K", "KEY_PPAGE"]:
|
|
|
self.uparrowshiftevent()
|
|
|
elif keypressed in ["j", "KEY_DOWN"]:
|
|
|
self.downarrowevent()
|
|
|
elif keypressed in ["J", "KEY_NPAGE"]:
|
|
|
self.downarrowshiftevent()
|
|
|
elif keypressed in ["l", "KEY_RIGHT"]:
|
|
|
self.rightarrowevent()
|
|
|
elif keypressed in ["h", "KEY_LEFT"]:
|
|
|
self.leftarrowevent()
|
|
|
elif keypressed in ["H", "KEY_SLEFT"]:
|
|
|
self.leftarrowshiftevent()
|
|
|
elif keypressed in ["q"]:
|
|
|
raise error.Abort(_('user quit'))
|
|
|
elif keypressed in ['a']:
|
|
|
self.toggleamend(self.opts, test)
|
|
|
elif keypressed in ["c"]:
|
|
|
return True
|
|
|
elif test and keypressed in ['X']:
|
|
|
return True
|
|
|
elif keypressed in ["r"]:
|
|
|
if self.reviewcommit():
|
|
|
self.opts['review'] = True
|
|
|
return True
|
|
|
elif test and keypressed in ['R']:
|
|
|
self.opts['review'] = True
|
|
|
return True
|
|
|
elif keypressed in [' '] or (test and keypressed in ["TOGGLE"]):
|
|
|
self.toggleapply()
|
|
|
if self.ui.configbool('experimental', 'spacemovesdown'):
|
|
|
self.downarrowevent()
|
|
|
elif keypressed in ['A']:
|
|
|
self.toggleall()
|
|
|
elif keypressed in ['e']:
|
|
|
self.toggleedit(test=test)
|
|
|
elif keypressed in ["f"]:
|
|
|
self.togglefolded()
|
|
|
elif keypressed in ["F"]:
|
|
|
self.togglefolded(foldparent=True)
|
|
|
elif keypressed in ["m"]:
|
|
|
self.commitMessageWindow()
|
|
|
elif keypressed in ["?"]:
|
|
|
self.helpwindow()
|
|
|
self.stdscr.clear()
|
|
|
self.stdscr.refresh()
|
|
|
elif curses.unctrl(keypressed) in ["^L"]:
|
|
|
# scroll the current line to the top of the screen
|
|
|
self.scrolllines(self.selecteditemstartline)
|
|
|
|
|
|
def main(self, stdscr):
|
|
|
"""
|
|
|
method to be wrapped by curses.wrapper() for selecting chunks.
|
|
|
"""
|
|
|
|
|
|
origsigwinch = sentinel = object()
|
|
|
if util.safehasattr(signal, 'SIGWINCH'):
|
|
|
origsigwinch = signal.signal(signal.SIGWINCH,
|
|
|
self.sigwinchhandler)
|
|
|
try:
|
|
|
return self._main(stdscr)
|
|
|
finally:
|
|
|
if origsigwinch is not sentinel:
|
|
|
signal.signal(signal.SIGWINCH, origsigwinch)
|
|
|
|
|
|
def _main(self, stdscr):
|
|
|
self.stdscr = stdscr
|
|
|
# error during initialization, cannot be printed in the curses
|
|
|
# interface, it should be printed by the calling code
|
|
|
self.initerr = None
|
|
|
self.yscreensize, self.xscreensize = self.stdscr.getmaxyx()
|
|
|
|
|
|
curses.start_color()
|
|
|
try:
|
|
|
curses.use_default_colors()
|
|
|
except curses.error:
|
|
|
self.usecolor = False
|
|
|
|
|
|
# available colors: black, blue, cyan, green, magenta, white, yellow
|
|
|
# init_pair(color_id, foreground_color, background_color)
|
|
|
self.initcolorpair(None, None, name="normal")
|
|
|
self.initcolorpair(curses.COLOR_WHITE, curses.COLOR_MAGENTA,
|
|
|
name="selected")
|
|
|
self.initcolorpair(curses.COLOR_RED, None, name="deletion")
|
|
|
self.initcolorpair(curses.COLOR_GREEN, None, name="addition")
|
|
|
self.initcolorpair(curses.COLOR_WHITE, curses.COLOR_BLUE, name="legend")
|
|
|
# newwin([height, width,] begin_y, begin_x)
|
|
|
self.statuswin = curses.newwin(self.numstatuslines, 0, 0, 0)
|
|
|
self.statuswin.keypad(1) # interpret arrow-key, etc. esc sequences
|
|
|
|
|
|
# figure out how much space to allocate for the chunk-pad which is
|
|
|
# used for displaying the patch
|
|
|
|
|
|
# stupid hack to prevent getnumlinesdisplayed from failing
|
|
|
self.chunkpad = curses.newpad(1, self.xscreensize)
|
|
|
|
|
|
# add 1 so to account for last line text reaching end of line
|
|
|
self.numpadlines = self.getnumlinesdisplayed(ignorefolding=True) + 1
|
|
|
|
|
|
try:
|
|
|
self.chunkpad = curses.newpad(self.numpadlines, self.xscreensize)
|
|
|
except curses.error:
|
|
|
self.initerr = _('this diff is too large to be displayed')
|
|
|
return
|
|
|
# initialize selecteditemendline (initial start-line is 0)
|
|
|
self.selecteditemendline = self.getnumlinesdisplayed(
|
|
|
self.currentselecteditem, recursechildren=False)
|
|
|
|
|
|
while True:
|
|
|
self.updatescreen()
|
|
|
try:
|
|
|
with self.ui.timeblockedsection('crecord'):
|
|
|
keypressed = self.statuswin.getkey()
|
|
|
if self.errorstr is not None:
|
|
|
self.errorstr = None
|
|
|
continue
|
|
|
except curses.error:
|
|
|
keypressed = "foobar"
|
|
|
if self.handlekeypressed(keypressed):
|
|
|
break
|
|
|
|
|
|
if self.commenttext != "":
|
|
|
whitespaceremoved = re.sub("(?m)^\s.*(\n|$)", "", self.commenttext)
|
|
|
if whitespaceremoved != "":
|
|
|
self.opts['message'] = self.commenttext
|
|
|
|
