6 git-http-backend - Server side implementation of Git over HTTP
15 A simple CGI program to serve the contents of a Git repository to Git
16 clients accessing the repository over http:// and https:// protocols.
17 The program supports clients fetching using both the smart HTTP protcol
18 and the backwards-compatible dumb HTTP protocol, as well as clients
19 pushing using the smart HTTP protocol.
21 By default, only the `upload-pack` service is enabled, which serves
22 'git-fetch-pack' and 'git-ls-remote' clients, which are invoked from
23 'git-fetch', 'git-pull', and 'git-clone'. If the client is authenticated,
24 the `receive-pack` service is enabled, which serves 'git-send-pack'
25 clients, which is invoked from 'git-push'.
29 These services can be enabled/disabled using the per-repository
33 This serves 'git-fetch-pack' and 'git-ls-remote' clients.
34 It is enabled by default, but a repository can disable it
35 by setting this configuration item to `false`.
38 This serves 'git-send-pack' clients, allowing push. It is
39 disabled by default for anonymous users, and enabled by
40 default for users authenticated by the web server. It can be
41 disabled by setting this item to `false`, or enabled for all
42 users, including anonymous users, by setting it to `true`.
46 To determine the location of the repository on disk, 'git-http-backend'
47 concatenates the environment variables PATH_INFO, which is set
48 automatically by the web server, and GIT_PROJECT_ROOT, which must be set
49 manually in the web server configuration. If GIT_PROJECT_ROOT is not
50 set, 'git-http-backend' reads PATH_TRANSLATED, which is also set
51 automatically by the web server.
55 All of the following examples map 'http://$hostname/git/foo/bar.git'
56 to '/var/www/git/foo/bar.git'.
59 Ensure mod_cgi, mod_alias, and mod_env are enabled, set
60 GIT_PROJECT_ROOT (or DocumentRoot) appropriately, and
61 create a ScriptAlias to the CGI:
63 ----------------------------------------------------------------
64 SetEnv GIT_PROJECT_ROOT /var/www/git
65 ScriptAlias /git/ /usr/libexec/git-core/git-http-backend/
66 ----------------------------------------------------------------
68 To enable anonymous read access but authenticated write access,
69 require authorization with a LocationMatch directive:
71 ----------------------------------------------------------------
72 <LocationMatch ".*/git-receive-pack$">
75 Require group committers
78 ----------------------------------------------------------------
80 To require authentication for both reads and writes, use a Location
81 directive around the repository, or one of its parent directories:
83 ----------------------------------------------------------------
84 <Location /git/private>
86 AuthName "Private Git Access"
87 Require group committers
90 ----------------------------------------------------------------
92 To serve gitweb at the same url, use a ScriptAliasMatch to only
93 those URLs that 'git-http-backend' can handle, and forward the
96 ----------------------------------------------------------------
98 "(?x)^/git/(.*/(HEAD | \
100 objects/(info/[^/]+ | \
101 [0-9a-f]{2}/[0-9a-f]{38} | \
102 pack/pack-[0-9a-f]{40}\.(pack|idx)) | \
103 git-(upload|receive)-pack))$" \
104 /usr/libexec/git-core/git-http-backend/$1
106 ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/
107 ----------------------------------------------------------------
109 Accelerated static Apache 2.x::
110 Similar to the above, but Apache can be used to return static
111 files that are stored on disk. On many systems this may
112 be more efficient as Apache can ask the kernel to copy the
113 file contents from the file system directly to the network:
115 ----------------------------------------------------------------
116 SetEnv GIT_PROJECT_ROOT /var/www/git
118 AliasMatch ^/git/(.*/objects/[0-9a-f]{2}/[0-9a-f]{38})$ /var/www/git/$1
119 AliasMatch ^/git/(.*/objects/pack/pack-[0-9a-f]{40}.(pack|idx))$ /var/www/git/$1
120 ScriptAlias /git/ /usr/libexec/git-core/git-http-backend/
121 ----------------------------------------------------------------
123 This can be combined with the gitweb configuration:
125 ----------------------------------------------------------------
126 SetEnv GIT_PROJECT_ROOT /var/www/git
128 AliasMatch ^/git/(.*/objects/[0-9a-f]{2}/[0-9a-f]{38})$ /var/www/git/$1
129 AliasMatch ^/git/(.*/objects/pack/pack-[0-9a-f]{40}.(pack|idx))$ /var/www/git/$1
131 "(?x)^/git/(.*/(HEAD | \
133 objects/info/[^/]+ | \
134 git-(upload|receive)-pack))$" \
135 /usr/libexec/git-core/git-http-backend/$1
136 ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/
137 ----------------------------------------------------------------
142 'git-http-backend' relies upon the CGI environment variables set
143 by the invoking web server, including:
145 * PATH_INFO (if GIT_PROJECT_ROOT is set, otherwise PATH_TRANSLATED)
152 The backend process sets GIT_COMMITTER_NAME to '$REMOTE_USER' and
153 GIT_COMMITTER_EMAIL to '$\{REMOTE_USER}@http.$\{REMOTE_ADDR\}',
154 ensuring that any reflogs created by 'git-receive-pack' contain some
155 identifying information of the remote user who performed the push.
157 All CGI environment variables are available to each of the hooks
158 invoked by the 'git-receive-pack'.
162 Written by Shawn O. Pearce <spearce@spearce.org>.
166 Documentation by Shawn O. Pearce <spearce@spearce.org>.
170 Part of the linkgit:git[1] suite