hgweb mercurial web interface on
current Debian/Squeeze (mercurial-common 1.5.1-2) lists tab characters
as-is in the diff view.
Every line is prefixed not only by a plus or a minus (unified diff), but also by file and line numbers. This can cause a tab (0x9) character to appear as a single space. This does not look nice.
The following patch can be applied to expand the tab character so the intentation looks right again.
--- /usr/share/pyshared/mercurial/hgweb/webutil.py.orig 2010-05-07 09:41:17.000000000 +0200 +++ /usr/share/pyshared/mercurial/hgweb/webutil.py 2010-05-07 09:47:53.000000000 +0200 @@ -177,6 +177,7 @@ def diffs(repo, tmpl, ctx, files, parity ltype = "difflineat" else: ltype = "diffline" + l = l.expandtabs() yield tmpl(ltype, line=l, lineid="l%s" % lineno,