--- a/mercurial/debugcommands.py Wed Apr 25 14:51:20 2018 -0700
+++ b/mercurial/debugcommands.py Thu Apr 26 21:24:13 2018 +0900
@@ -462,6 +462,8 @@
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)
--- a/tests/test-debugcommands.t Wed Apr 25 14:51:20 2018 -0700
+++ b/tests/test-debugcommands.t Thu Apr 26 21:24:13 2018 +0900
@@ -333,6 +333,19 @@
.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