[PATCH] trim author and description on gitweb summary page

[TK Soh]

The trimming code has been adapted from original gitweb's CGI [perl]
script, and it looks a bit mysterious to me - without a tiny bit of
comment of the part of code. So, the filter names I used may not
reflect the true maximum length of the trimmed text.
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# HG changeset patch
# User TK Soh <teekaysoh at yahoo.com>
# Date 1149262139 18000
# Node ID f7000016573a3fbe484193d3724666538b3218d5
# Parent  482d3fb47d80693f929101f95944bf019009dd79
gitweb: trim long description and author entries in summary page

diff -r 482d3fb47d80 -r f7000016573a mercurial/templater.py
--- a/mercurial/templater.py	Thu Jun 01 19:08:29 2006 +0200
+++ b/mercurial/templater.py	Fri Jun 02 10:28:59 2006 -0500
@@ -265,6 +265,17 @@ def indent(text, prefix):
         if i < num_lines - 1 or text.endswith('\n'):
             fp.write('\n')
     return fp.getvalue()
+
+def trim(text, width, add_width=10):
+    '''trim a long line in one with tail'''
+    m = re.match(r'(.{0,%d}[^ \/\-_:\.@]{0,%d})(.*)' %
+                 (width, add_width), text)
+    if m:
+        body, tail = m.groups()
+        if len(tail) > 4:
+            tail = " ..."
+        text = "%s%s" % (body, tail)
+    return text
 
 common_filters = {
     "addbreaks": nl2br,
@@ -287,6 +298,8 @@ common_filters = {
     "shortdate": shortdate,
     "stringify": stringify,
     "strip": lambda x: x.strip(),
+    "trim20": lambda x: trim(x, 15, 5),
+    "trim60": lambda x: trim(x, 50, 10),
     "urlescape": lambda x: urllib.quote(x),
     "user": lambda x: util.shortuser(x),
     }
diff -r 482d3fb47d80 -r f7000016573a templates/map-gitweb
--- a/templates/map-gitweb	Thu Jun 01 19:08:29 2006 +0200
+++ b/templates/map-gitweb	Fri Jun 02 10:28:59 2006 -0500
@@ -45,6 +45,6 @@ filediffchild = '<tr><th class="child">c
 filediffchild = '<tr><th class="child">child #rev#:</th><td class="child"><a href="?cmd=changeset;node=#node#;style=gitweb">#node|short#</a></td></tr>'
 filelogchild = '<tr><td align="right">child #rev#:&nbsp;</td><td><a href="?cmd=file;file=#file|urlescape#;filenode=#node#;style=gitweb">#node|short#</a></td></tr>'
 shortlog = shortlog-gitweb.tmpl
-shortlogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><i>#author#</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|escape#</b></a></td><td class="link"><a href="?cmd=changeset;node=#node|short#;style=gitweb">changeset</a> |  <a href="?cmd=manifest;manifest=#manifest|short#;path=/;style=gitweb">manifest</a></td></tr>'
+shortlogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><i>#author|trim20#</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|trim60|escape#</b></a></td><td class="link"><a href="?cmd=changeset;node=#node|short#;style=gitweb">changeset</a> |  <a href="?cmd=manifest;manifest=#manifest|short#;path=/;style=gitweb">manifest</a></td></tr>'
 filelogentry = '<tr class="parity#parity#"><td class="age"><i>#date|age# ago</i></td><td><a class="list" href="?cmd=changeset;node=#node|short#;style=gitweb"><b>#desc|strip|firstline|escape#</b></a></td><td class="link"><!-- FIXME: <a href="?fd=#node|short#;file=#file|urlescape#;style=gitweb">diff</a> | --> <a href="?fa=#filenode|short#;file=#file|urlescape#;style=gitweb">annotate</a> #rename%filelogrename#</td></tr>'
 archiveentry = ' | <a href="?ca=#node|short#;type=#type|urlescape#">#type|escape#</a> '