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# hgweb/webutil.py - utility library for the web interface.
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#
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.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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import os, copy
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from mercurial import match, patch, error, ui, util, pathutil, context
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from mercurial.i18n import _
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from mercurial.node import hex, nullid, short
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from mercurial.templatefilters import revescape
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from common import ErrorResponse, paritygen
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from common import HTTP_NOT_FOUND
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import difflib
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def up(p):
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if p[0] != "/":
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p = "/" + p
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if p[-1] == "/":
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p = p[:-1]
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up = os.path.dirname(p)
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if up == "/":
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return "/"
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return up + "/"
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def _navseq(step, firststep=None):
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if firststep:
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yield firststep
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if firststep >= 20 and firststep <= 40:
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firststep = 50
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yield firststep
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assert step > 0
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assert firststep > 0
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while step <= firststep:
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step *= 10
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while True:
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yield 1 * step
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yield 3 * step
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step *= 10
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class revnav(object):
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def __init__(self, repo):
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"""Navigation generation object
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:repo: repo object we generate nav for
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"""
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# used for hex generation
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self._revlog = repo.changelog
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def __nonzero__(self):
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"""return True if any revision to navigate over"""
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return self._first() is not None
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def _first(self):
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"""return the minimum non-filtered changeset or None"""
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try:
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return iter(self._revlog).next()
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except StopIteration:
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return None
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def hex(self, rev):
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return hex(self._revlog.node(rev))
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def gen(self, pos, pagelen, limit):
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"""computes label and revision id for navigation link
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:pos: is the revision relative to which we generate navigation.
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:pagelen: the size of each navigation page
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:limit: how far shall we link
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The return is:
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- a single element tuple
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- containing a dictionary with a `before` and `after` key
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- values are generator functions taking arbitrary number of kwargs
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- yield items are dictionaries with `label` and `node` keys
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"""
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if not self:
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# empty repo
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return ({'before': (), 'after': ()},)
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targets = []
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for f in _navseq(1, pagelen):
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if f > limit:
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break
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targets.append(pos + f)
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targets.append(pos - f)
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targets.sort()
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first = self._first()
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navbefore = [("(%i)" % first, self.hex(first))]
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navafter = []
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for rev in targets:
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if rev not in self._revlog:
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continue
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if pos < rev < limit:
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navafter.append(("+%d" % abs(rev - pos), self.hex(rev)))
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if 0 < rev < pos:
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navbefore.append(("-%d" % abs(rev - pos), self.hex(rev)))
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navafter.append(("tip", "tip"))
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data = lambda i: {"label": i[0], "node": i[1]}
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return ({'before': lambda **map: (data(i) for i in navbefore),
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'after': lambda **map: (data(i) for i in navafter)},)
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class filerevnav(revnav):
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def __init__(self, repo, path):
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"""Navigation generation object
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:repo: repo object we generate nav for
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:path: path of the file we generate nav for
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"""
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# used for iteration
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self._changelog = repo.unfiltered().changelog
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# used for hex generation
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self._revlog = repo.file(path)
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def hex(self, rev):
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return hex(self._changelog.node(self._revlog.linkrev(rev)))
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def _siblings(siblings=[], hiderev=None):
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siblings = [s for s in siblings if s.node() != nullid]
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if len(siblings) == 1 and siblings[0].rev() == hiderev:
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return
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for s in siblings:
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d = {'node': s.hex(), 'rev': s.rev()}
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d['user'] = s.user()
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d['date'] = s.date()
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d['description'] = s.description()
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d['branch'] = s.branch()
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if util.safehasattr(s, 'path'):
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d['file'] = s.path()
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yield d
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def parents(ctx, hide=None):
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if isinstance(ctx, context.basefilectx):
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introrev = ctx.introrev()
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if ctx.changectx().rev() != introrev:
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return _siblings([ctx.repo()[introrev]], hide)
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return _siblings(ctx.parents(), hide)
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def children(ctx, hide=None):
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return _siblings(ctx.children(), hide)
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def renamelink(fctx):
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r = fctx.renamed()
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if r:
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return [{'file': r[0], 'node': hex(r[1])}]
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return []
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def nodetagsdict(repo, node):
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return [{"name": i} for i in repo.nodetags(node)]
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def nodebookmarksdict(repo, node):
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return [{"name": i} for i in repo.nodebookmarks(node)]
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def nodebranchdict(repo, ctx):
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branches = []
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branch = ctx.branch()
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# If this is an empty repo, ctx.node() == nullid,
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# ctx.branch() == 'default'.
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try:
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branchnode = repo.branchtip(branch)
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except error.RepoLookupError:
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branchnode = None
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if branchnode == ctx.node():
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branches.append({"name": branch})
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return branches
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def nodeinbranch(repo, ctx):
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branches = []
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branch = ctx.branch()
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try:
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branchnode = repo.branchtip(branch)
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except error.RepoLookupError:
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branchnode = None
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if branch != 'default' and branchnode != ctx.node():
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branches.append({"name": branch})
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return branches
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def nodebranchnodefault(ctx):
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branches = []
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branch = ctx.branch()
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if branch != 'default':
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branches.append({"name": branch})
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return branches
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def showtag(repo, tmpl, t1, node=nullid, **args):
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for t in repo.nodetags(node):
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yield tmpl(t1, tag=t, **args)
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def showbookmark(repo, tmpl, t1, node=nullid, **args):
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for t in repo.nodebookmarks(node):
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yield tmpl(t1, bookmark=t, **args)
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def cleanpath(repo, path):
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path = path.lstrip('/')
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return pathutil.canonpath(repo.root, '', path)
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def changeidctx(repo, changeid):
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try:
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ctx = repo[changeid]
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except error.RepoError:
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man = repo.manifest
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ctx = repo[man.linkrev(man.rev(man.lookup(changeid)))]
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return ctx
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def changectx(repo, req):
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changeid = "tip"
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if 'node' in req.form:
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changeid = req.form['node'][0]
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ipos = changeid.find(':')
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if ipos != -1:
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changeid = changeid[(ipos + 1):]
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elif 'manifest' in req.form:
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changeid = req.form['manifest'][0]
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return changeidctx(repo, changeid)
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def basechangectx(repo, req):
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if 'node' in req.form:
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changeid = req.form['node'][0]
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ipos = changeid.find(':')
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if ipos != -1:
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changeid = changeid[:ipos]
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return changeidctx(repo, changeid)
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return None
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def filectx(repo, req):
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if 'file' not in req.form:
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raise ErrorResponse(HTTP_NOT_FOUND, 'file not given')
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path = cleanpath(repo, req.form['file'][0])
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if 'node' in req.form:
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changeid = req.form['node'][0]
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elif 'filenode' in req.form:
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changeid = req.form['filenode'][0]
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else:
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raise ErrorResponse(HTTP_NOT_FOUND, 'node or filenode not given')
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try:
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fctx = repo[changeid][path]
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except error.RepoError:
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fctx = repo.filectx(path, fileid=changeid)
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return fctx
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def changelistentry(web, ctx, tmpl):
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'''Obtain a dictionary to be used for entries in a changelist.
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This function is called when producing items for the "entries" list passed
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to the "shortlog" and "changelog" templates.
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'''
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repo = web.repo
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rev = ctx.rev()
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n = ctx.node()
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showtags = showtag(repo, tmpl, 'changelogtag', n)
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files = listfilediffs(tmpl, ctx.files(), n, web.maxfiles)
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return {
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"author": ctx.user(),
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"parent": parents(ctx, rev - 1),
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"child": children(ctx, rev + 1),
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"changelogtag": showtags,
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"desc": ctx.description(),
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"extra": ctx.extra(),
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"date": ctx.date(),
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"files": files,
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"rev": rev,
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"node": hex(n),
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"tags": nodetagsdict(repo, n),
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"bookmarks": nodebookmarksdict(repo, n),
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"inbranch": nodeinbranch(repo, ctx),
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"branches": nodebranchdict(repo, ctx)
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}
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def symrevorshortnode(req, ctx):
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if 'node' in req.form:
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return revescape(req.form['node'][0])
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else:
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return short(ctx.node())
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def changesetentry(web, req, tmpl, ctx):
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'''Obtain a dictionary to be used to render the "changeset" template.'''
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showtags = showtag(web.repo, tmpl, 'changesettag', ctx.node())
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showbookmarks = showbookmark(web.repo, tmpl, 'changesetbookmark',
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ctx.node())
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showbranch = nodebranchnodefault(ctx)
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files = []
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parity = paritygen(web.stripecount)
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for blockno, f in enumerate(ctx.files()):
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template = f in ctx and 'filenodelink' or 'filenolink'
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files.append(tmpl(template,
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node=ctx.hex(), file=f, blockno=blockno + 1,
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parity=parity.next()))
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basectx = basechangectx(web.repo, req)
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if basectx is None:
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basectx = ctx.p1()
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style = web.config('web', 'style', 'paper')
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if 'style' in req.form:
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style = req.form['style'][0]
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parity = paritygen(web.stripecount)
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diff = diffs(web.repo, tmpl, ctx, basectx, None, parity, style)
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parity = paritygen(web.stripecount)
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diffstatsgen = diffstatgen(ctx, basectx)
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diffstats = diffstat(tmpl, ctx, diffstatsgen, parity)
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return dict(
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diff=diff,
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rev=ctx.rev(),
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node=ctx.hex(),
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symrev=symrevorshortnode(req, ctx),
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parent=tuple(parents(ctx)),
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child=children(ctx),
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basenode=basectx.hex(),
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changesettag=showtags,
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changesetbookmark=showbookmarks,
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changesetbranch=showbranch,
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author=ctx.user(),
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desc=ctx.description(),
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extra=ctx.extra(),
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date=ctx.date(),
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phase=ctx.phasestr(),
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files=files,
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diffsummary=lambda **x: diffsummary(diffstatsgen),
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diffstat=diffstats,
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archives=web.archivelist(ctx.hex()),
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tags=nodetagsdict(web.repo, ctx.node()),
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bookmarks=nodebookmarksdict(web.repo, ctx.node()),
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branch=showbranch,
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inbranch=nodeinbranch(web.repo, ctx),
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branches=nodebranchdict(web.repo, ctx))
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def listfilediffs(tmpl, files, node, max):
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for f in files[:max]:
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yield tmpl('filedifflink', node=hex(node), file=f)
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if len(files) > max:
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yield tmpl('fileellipses')
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def diffs(repo, tmpl, ctx, basectx, files, parity, style):
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def countgen():
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start = 1
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while True:
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yield start
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start += 1
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blockcount = countgen()
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def prettyprintlines(diff, blockno):
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for lineno, l in enumerate(diff.splitlines(True)):
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difflineno = "%d.%d" % (blockno, lineno + 1)
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if l.startswith('+'):
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ltype = "difflineplus"
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elif l.startswith('-'):
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ltype = "difflineminus"
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elif l.startswith('@'):
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ltype = "difflineat"
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else:
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ltype = "diffline"
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yield tmpl(ltype,
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line=l,
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lineno=lineno + 1,
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lineid="l%s" % difflineno,
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linenumber="% 8s" % difflineno)
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if files:
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m = match.exact(repo.root, repo.getcwd(), files)
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else:
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m = match.always(repo.root, repo.getcwd())
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diffopts = patch.diffopts(repo.ui, untrusted=True)
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if basectx is None:
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parents = ctx.parents()
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if parents:
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node1 = parents[0].node()
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else:
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node1 = nullid
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else:
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node1 = basectx.node()
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node2 = ctx.node()
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block = []
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for chunk in patch.diff(repo, node1, node2, m, opts=diffopts):
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if chunk.startswith('diff') and block:
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blockno = blockcount.next()
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yield tmpl('diffblock', parity=parity.next(), blockno=blockno,
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lines=prettyprintlines(''.join(block), blockno))
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block = []
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if chunk.startswith('diff') and style != 'raw':
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chunk = ''.join(chunk.splitlines(True)[1:])
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block.append(chunk)
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blockno = blockcount.next()
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yield tmpl('diffblock', parity=parity.next(), blockno=blockno,
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lines=prettyprintlines(''.join(block), blockno))
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def compare(tmpl, context, leftlines, rightlines):
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'''Generator function that provides side-by-side comparison data.'''
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def compline(type, leftlineno, leftline, rightlineno, rightline):
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lineid = leftlineno and ("l%s" % leftlineno) or ''
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lineid += rightlineno and ("r%s" % rightlineno) or ''
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return tmpl('comparisonline',
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type=type,
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lineid=lineid,
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leftlineno=leftlineno,
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leftlinenumber="% 6s" % (leftlineno or ''),
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leftline=leftline or '',
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rightlineno=rightlineno,
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rightlinenumber="% 6s" % (rightlineno or ''),
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rightline=rightline or '')
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def getblock(opcodes):
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for type, llo, lhi, rlo, rhi in opcodes:
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len1 = lhi - llo
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len2 = rhi - rlo
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count = min(len1, len2)
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for i in xrange(count):
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yield compline(type=type,
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leftlineno=llo + i + 1,
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leftline=leftlines[llo + i],
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rightlineno=rlo + i + 1,
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rightline=rightlines[rlo + i])
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if len1 > len2:
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for i in xrange(llo + count, lhi):
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yield compline(type=type,
|
|
|
leftlineno=i + 1,
|
|
|
leftline=leftlines[i],
|
|
|
rightlineno=None,
|
|
|
rightline=None)
|
|
|
elif len2 > len1:
|
|
|
for i in xrange(rlo + count, rhi):
|
|
|
yield compline(type=type,
|
|
|
leftlineno=None,
|
|
|
leftline=None,
|
|
|
rightlineno=i + 1,
|
|
|
rightline=rightlines[i])
|
|
|
|
|
|
s = difflib.SequenceMatcher(None, leftlines, rightlines)
|
|
|
if context < 0:
|
|
|
yield tmpl('comparisonblock', lines=getblock(s.get_opcodes()))
|
|
|
else:
|
|
|
for oc in s.get_grouped_opcodes(n=context):
|
|
|
yield tmpl('comparisonblock', lines=getblock(oc))
|
|
|
|
|
|
def diffstatgen(ctx, basectx):
|
|
|
'''Generator function that provides the diffstat data.'''
|
|
|
|
|
|
stats = patch.diffstatdata(util.iterlines(ctx.diff(basectx)))
|
|
|
maxname, maxtotal, addtotal, removetotal, binary = patch.diffstatsum(stats)
|
|
|
while True:
|
|
|
yield stats, maxname, maxtotal, addtotal, removetotal, binary
|
|
|
|
|
|
def diffsummary(statgen):
|
|
|
'''Return a short summary of the diff.'''
|
|
|
|
|
|
stats, maxname, maxtotal, addtotal, removetotal, binary = statgen.next()
|
|
|
return _(' %d files changed, %d insertions(+), %d deletions(-)\n') % (
|
|
|
len(stats), addtotal, removetotal)
|
|
|
|
|
|
def diffstat(tmpl, ctx, statgen, parity):
|
|
|
'''Return a diffstat template for each file in the diff.'''
|
|
|
|
|
|
stats, maxname, maxtotal, addtotal, removetotal, binary = statgen.next()
|
|
|
files = ctx.files()
|
|
|
|
|
|
def pct(i):
|
|
|
if maxtotal == 0:
|
|
|
return 0
|
|
|
return (float(i) / maxtotal) * 100
|
|
|
|
|
|
fileno = 0
|
|
|
for filename, adds, removes, isbinary in stats:
|
|
|
template = filename in files and 'diffstatlink' or 'diffstatnolink'
|
|
|
total = adds + removes
|
|
|
fileno += 1
|
|
|
yield tmpl(template, node=ctx.hex(), file=filename, fileno=fileno,
|
|
|
total=total, addpct=pct(adds), removepct=pct(removes),
|
|
|
parity=parity.next())
|
|
|
|
|
|
class sessionvars(object):
|
|
|
def __init__(self, vars, start='?'):
|
|
|
self.start = start
|
|
|
self.vars = vars
|
|
|
def __getitem__(self, key):
|
|
|
return self.vars[key]
|
|
|
def __setitem__(self, key, value):
|
|
|
self.vars[key] = value
|
|
|
def __copy__(self):
|
|
|
return sessionvars(copy.copy(self.vars), self.start)
|
|
|
def __iter__(self):
|
|
|
separator = self.start
|
|
|
for key, value in sorted(self.vars.iteritems()):
|
|
|
yield {'name': key, 'value': str(value), 'separator': separator}
|
|
|
separator = '&'
|
|
|
|
|
|
class wsgiui(ui.ui):
|
|
|
# default termwidth breaks under mod_wsgi
|
|
|
def termwidth(self):
|
|
|
return 80
|
|
|
|
