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).
+`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
ENVIRONMENT
-----------
-'git http-backend' relies upon the CGI environment variables set
+'git http-backend' relies upon the `CGI` environment variables set
by the invoking web server, including:
* PATH_INFO (if GIT_PROJECT_ROOT is set, otherwise PATH_TRANSLATED)
* QUERY_STRING
* REQUEST_METHOD
-The GIT_HTTP_EXPORT_ALL environmental variable may be passed to
+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 `GIT_HTTP_MAX_REQUEST_BUFFER` environment variable (or the
+`http.maxRequestBuffer` config variable) may be set to change the
+largest ref negotiation request that git will handle during a fetch; any
+fetch requiring a larger buffer will not succeed. This value should not
+normally need to be changed, but may be helpful if you are fetching from
+a repository with an extremely large number of refs. The value can be
+specified with a unit (e.g., `100M` for 100 megabytes). The default is
+10 megabytes.
+
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
identifying information of the remote user who performed the push.
-All CGI environment variables are available to each of the hooks
+All `CGI` environment variables are available to each of the hooks
invoked by the 'git-receive-pack'.
GIT