[PATCH STABLE] debugcolor: fix crash by empty styles (issue5856)
Yuya Nishihara
yuya at tcha.org
Thu Apr 26 12:34:21 UTC 2018
# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1524745453 -32400
# Thu Apr 26 21:24:13 2018 +0900
# Branch stable
# Node ID 2098173ebe1bd9273e10028fa446eb23b4ca1322
# Parent 7dffecb148aa77184b19c054e301345b3b51af1b
debugcolor: fix crash by empty styles (issue5856)
diff --git a/mercurial/debugcommands.py b/mercurial/debugcommands.py
--- a/mercurial/debugcommands.py
+++ b/mercurial/debugcommands.py
@@ -462,6 +462,8 @@ def _debugdisplaycolor(ui):
def _debugdisplaystyle(ui):
ui.write(_('available style:\n'))
+ if not ui._styles:
+ return
width = max(len(s) for s in ui._styles)
for label, effects in sorted(ui._styles.items()):
ui.write('%s' % label, label=label)
diff --git a/tests/test-debugcommands.t b/tests/test-debugcommands.t
--- a/tests/test-debugcommands.t
+++ b/tests/test-debugcommands.t
@@ -333,6 +333,19 @@ Test cache warming command
.hg/cache/rbc-names-v1
.hg/cache/branch2-served
+Test debugcolor
+
+#if no-windows
+ $ hg debugcolor --style --color always | egrep 'mode|style|log\.'
+ color mode: ansi
+ available style:
+ \x1b[0;33mlog.changeset\x1b[0m: \x1b[0;33myellow\x1b[0m (esc)
+#endif
+
+ $ hg debugcolor --style --color never
+ color mode: None
+ available style:
+
$ cd ..
Test internal debugstacktrace command
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