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# -*- coding: UTF-8 -*-
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# beautifygraph.py - improve graph output by using Unicode characters
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#
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# Copyright 2018 John Stiles <johnstiles@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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'''beautify log -G output by using Unicode characters (EXPERIMENTAL)
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A terminal with UTF-8 support and monospace narrow text are required.
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'''
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from __future__ import absolute_import
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from mercurial.i18n import _
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from mercurial import (
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encoding,
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extensions,
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graphmod,
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templatekw,
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)
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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# be specifying the version(s) of Mercurial they are tested with, or
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# leave the attribute unspecified.
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testedwith = 'ships-with-hg-core'
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def prettyedge(before, edge, after):
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if edge == '~':
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return '\xE2\x95\xA7' # U+2567 ╧
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if edge == 'X':
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return '\xE2\x95\xB3' # U+2573 ╳
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if edge == '/':
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return '\xE2\x95\xB1' # U+2571 ╱
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if edge == '-':
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return '\xE2\x94\x80' # U+2500 ─
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if edge == '|':
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return '\xE2\x94\x82' # U+2502 │
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if edge == ':':
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return '\xE2\x94\x86' # U+2506 ┆
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if edge == '\\':
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return '\xE2\x95\xB2' # U+2572 ╲
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if edge == '+':
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if before == ' ' and not after == ' ':
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return '\xE2\x94\x9C' # U+251C ├
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if after == ' ' and not before == ' ':
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return '\xE2\x94\xA4' # U+2524 ┤
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return '\xE2\x94\xBC' # U+253C ┼
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return edge
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def convertedges(line):
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line = ' %s ' % line
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pretty = []
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for idx in xrange(len(line) - 2):
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pretty.append(prettyedge(line[idx], line[idx + 1], line[idx + 2]))
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return ''.join(pretty)
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def getprettygraphnode(orig, *args, **kwargs):
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node = orig(*args, **kwargs)
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if node == 'o':
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return '\xE2\x97\x8B' # U+25CB ○
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if node == '@':
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return '\xE2\x97\x8D' # U+25CD ◍
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if node == '*':
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return '\xE2\x88\x97' # U+2217 ∗
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if node == 'x':
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return '\xE2\x97\x8C' # U+25CC ◌
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if node == '_':
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return '\xE2\x95\xA4' # U+2564 ╤
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return node
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def outputprettygraph(orig, ui, graph, *args, **kwargs):
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(edges, text) = zip(*graph)
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graph = zip([convertedges(e) for e in edges], text)
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return orig(ui, graph, *args, **kwargs)
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def extsetup(ui):
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if encoding.encoding != 'UTF-8':
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ui.warn(_('beautifygraph: unsupported encoding, UTF-8 required\n'))
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return
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if 'A' in encoding._wide:
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ui.warn(_('beautifygraph: unsupported terminal settings, '
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'monospace narrow text required\n'))
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return
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if ui.plain('graph'):
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return
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extensions.wrapfunction(graphmod, 'outputgraph', outputprettygraph)
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extensions.wrapfunction(templatekw, 'getgraphnode', getprettygraphnode)
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