git-http-backend vs gitweb pathinfo mode
From: Tony Finch <dot@dotat.at>
Date: 2016-06-15 22:58:19
Background:
You cam make the same URL work for gitwe and git clone as described in
git-http-backend(1). It says:
To serve gitweb at the same url, use a ScriptAliasMatch to only
those URLs that git http-backend can handle, and forward the rest
to gitweb:
ScriptAliasMatch \
"(?x)^/git/(.*/(HEAD | \
info/refs | \
objects/(info/[^/]+ | \
[0-9a-f]{2}/[0-9a-f]{38} | \
pack/pack-[0-9a-f]{40}\.(pack|idx)) | \
git-(upload|receive)-pack))$" \
/usr/libexec/git-core/git-http-backend/$1
ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/
Gitweb has a friendly URL mode that uses pathinfo instead of query
parameters.
Problem:
In pathinfo mode, gitweb sometimes produces URLs ending in /HEAD which
match the git-http-backend regex and therefore get passed to the wrong
CGI.
For example, go to https://git.csx.cam.ac.uk/i/ucs/git/git.git/tree
and click on the gitweb subdirectory which takes you to
https://git.csx.cam.ac.uk/i/ucs/git/git.git/tree/HEAD:/gitweb
then click on [git/git.git] to go back, which takes you to
https://git.csx.cam.ac.uk/i/ucs/git/git.git/tree/HEAD
Half-arsed solution:
I have amended the regex to start like
"(?x)^/git/(.*/((?<=[.]git/)HEAD | \
which solves the problem for me since all my repos have names ending in
.git and this doesn't clash with any gitweb action names. I don't think
this is a general solution because some people like bare extensionless
repo names. On the other hand I don't think the regex should list all the
dozens of gitweb action names. So I'm not sure what the best fix is.
Tony.
--
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