[PATCH 1 of 2] patch: enable diff.tab markup for the color extension
Jordi Gutiérrez Hermoso
jordigh at octave.org
Sun Aug 24 17:22:16 CDT 2014
# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh at octave.org>
# Date 1408562150 14400
# Wed Aug 20 15:15:50 2014 -0400
# Node ID a028ddacb2daea2b4fe1db75f76f5ca0305f41c6
# Parent 9d81f3c34b9fa408901c1b0362dd3a891639dee7
patch: enable diff.tab markup for the color extension
The following patch splits up changed lines along tabs (using
re.findall), and gives them a "diff.tab" label. This can be used by
the color extension for colorising tabs, like it does right now with
trailing whitespace.
I also provide corresponding tests.
diff --git a/mercurial/patch.py b/mercurial/patch.py
--- a/mercurial/patch.py
+++ b/mercurial/patch.py
@@ -18,6 +18,7 @@ from node import hex, short
import base85, mdiff, scmutil, util, diffhelpers, copies, encoding, error
gitre = re.compile('diff --git a/(.*) b/(.*)')
+tabsplitter = re.compile(r'(\t+|[^\t]+)')
class PatchError(Exception):
pass
@@ -1669,15 +1670,26 @@ def difflabel(func, *args, **kw):
if line and line[0] not in ' +-@\\':
head = True
stripline = line
+ diffline = False
if not head and line and line[0] in '+-':
- # highlight trailing whitespace, but only in changed lines
+ # highlight tabs and trailing whitespace, but only in
+ # changed lines
stripline = line.rstrip()
+ diffline = True
+
prefixes = textprefixes
if head:
prefixes = headprefixes
for prefix, label in prefixes:
if stripline.startswith(prefix):
- yield (stripline, label)
+ if diffline:
+ for token in tabsplitter.findall(stripline):
+ if '\t' in token:
+ yield (token, 'diff.tab')
+ else:
+ yield (token, label)
+ else:
+ yield (stripline, label)
break
else:
yield (line, '')
diff --git a/tests/test-diff-color.t b/tests/test-diff-color.t
--- a/tests/test-diff-color.t
+++ b/tests/test-diff-color.t
@@ -159,4 +159,44 @@ issue3712: test colorization of subrepo
b
\x1b[0;32m+bb\x1b[0m (esc)
+test tabs
+
+ $ cat >> a <<EOF
+ > one tab
+ > two tabs
+ > end tab
+ > mid tab
+ > all tabs
+ > EOF
+ $ hg diff --nodates --color=always
+ \x1b[0;1mdiff --git a/a b/a\x1b[0m (esc)
+ \x1b[0;31;1m--- a/a\x1b[0m (esc)
+ \x1b[0;32;1m+++ b/a\x1b[0m (esc)
+ \x1b[0;35m@@ -7,3 +7,9 @@\x1b[0m (esc)
+ a
+ c
+ c
+ \x1b[0;32m+aa\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m \x1b[0;32mone tab\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m \x1b[0;32mtwo tabs\x1b[0m (esc)
+ \x1b[0;32m+end tab\x1b[0m\x1b[0;1;41m \x1b[0m (esc)
+ \x1b[0;32m+mid\x1b[0m \x1b[0;32mtab\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m \x1b[0;32mall\x1b[0m \x1b[0;32mtabs\x1b[0m\x1b[0;1;41m \x1b[0m (esc)
+ $ echo "[color]" >> $HGRCPATH
+ $ echo "diff.tab = bold magenta" >> $HGRCPATH
+ $ hg diff --nodates --color=always
+ \x1b[0;1mdiff --git a/a b/a\x1b[0m (esc)
+ \x1b[0;31;1m--- a/a\x1b[0m (esc)
+ \x1b[0;32;1m+++ b/a\x1b[0m (esc)
+ \x1b[0;35m@@ -7,3 +7,9 @@\x1b[0m (esc)
+ a
+ c
+ c
+ \x1b[0;32m+aa\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m\x1b[0;1;35m \x1b[0m\x1b[0;32mone tab\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m\x1b[0;1;35m \x1b[0m\x1b[0;32mtwo tabs\x1b[0m (esc)
+ \x1b[0;32m+end tab\x1b[0m\x1b[0;1;41m \x1b[0m (esc)
+ \x1b[0;32m+mid\x1b[0m\x1b[0;1;35m \x1b[0m\x1b[0;32mtab\x1b[0m (esc)
+ \x1b[0;32m+\x1b[0m\x1b[0;1;35m \x1b[0m\x1b[0;32mall\x1b[0m\x1b[0;1;35m \x1b[0m\x1b[0;32mtabs\x1b[0m\x1b[0;1;41m \x1b[0m (esc)
+
$ cd ..
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