gitweb: provide a way to customize html headers

diff --git a/Documentation/git-http-backend.txt b/Documentation/git-http-backend.txt
index 4b2edd3f78774bae69260a2eb29a8b13d8758ada..f4e0741c115905f61a0e92c5255658f4b8e25711 100644 (file)
--- a/Documentation/git-http-backend.txt
+++ b/Documentation/git-http-backend.txt
@@ -14,10 +14,15 @@ DESCRIPTION
 -----------
 A simple CGI program to serve the contents of a Git repository to Git
 clients accessing the repository over http:// and https:// protocols.
-The program supports clients fetching using both the smart HTTP protcol
+The program supports clients fetching using both the smart HTTP protocol
 and the backwards-compatible dumb HTTP protocol, as well as clients
 pushing using the smart HTTP protocol.
 
+It verifies that the directory has the magic file
+"git-daemon-export-ok", and it will refuse to export any git directory
+that hasn't explicitly been marked for export this way (unless the
+GIT_HTTP_EXPORT_ALL environmental variable is set).
+
 By default, only the `upload-pack` service is enabled, which serves
 'git fetch-pack' and 'git ls-remote' clients, which are invoked from
 'git fetch', 'git pull', and 'git clone'.  If the client is authenticated,
@@ -30,7 +35,7 @@ These services can be enabled/disabled using the per-repository
 configuration file:
 
 http.getanyfile::
-       This serves older Git clients which are unable to use the
+       This serves Git clients older than version 1.6.6 that are unable to use the
        upload pack service.  When enabled, clients are able to read
        any file within the repository, including objects that are
        no longer reachable from a branch but are still present.
@@ -70,6 +75,7 @@ Apache 2.x::
 +
 ----------------------------------------------------------------
 SetEnv GIT_PROJECT_ROOT /var/www/git
+SetEnv GIT_HTTP_EXPORT_ALL
 ScriptAlias /git/ /usr/libexec/git-core/git-http-backend/
 ----------------------------------------------------------------
 +
@@ -113,6 +119,14 @@ ScriptAliasMatch \
 
 ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/
 ----------------------------------------------------------------
++
+To serve multiple repositories from different linkgit:gitnamespaces[7] in a
+single repository:
++
+----------------------------------------------------------------
+SetEnvIf Request_URI "^/git/([^/]*)" GIT_NAMESPACE=$1
+ScriptAliasMatch ^/git/[^/]*(.*) /usr/libexec/git-core/git-http-backend/storage.git$1
+----------------------------------------------------------------
 
 Accelerated static Apache 2.x::
        Similar to the above, but Apache can be used to return static
@@ -157,6 +171,10 @@ by the invoking web server, including:
 * QUERY_STRING
 * REQUEST_METHOD
 
+The GIT_HTTP_EXPORT_ALL environmental variable may be passed to
+'git-http-backend' to bypass the check for the "git-daemon-export-ok"
+file in each repository before allowing export of that repository.
+
 The backend process sets GIT_COMMITTER_NAME to '$REMOTE_USER' and
 GIT_COMMITTER_EMAIL to '$\{REMOTE_USER}@http.$\{REMOTE_ADDR\}',
 ensuring that any reflogs created by 'git-receive-pack' contain some