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authorGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 17:08:15 -0800
committerGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 17:08:15 -0800
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treef0c16f1494bd71922e7bf5258037427cac4a350b /Documentation/git-daemon.txt
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+git-daemon(1)
+=============
+
+NAME
+----
+git-daemon - A really simple server for git repositories
+
+SYNOPSIS
+--------
+[verse]
+'git daemon' [--verbose] [--syslog] [--export-all]
+ [--timeout=n] [--init-timeout=n] [--max-connections=n]
+ [--strict-paths] [--base-path=path] [--base-path-relaxed]
+ [--user-path | --user-path=path]
+ [--interpolated-path=pathtemplate]
+ [--reuseaddr] [--detach] [--pid-file=file]
+ [--enable=service] [--disable=service]
+ [--allow-override=service] [--forbid-override=service]
+ [--inetd | [--listen=host_or_ipaddr] [--port=n] [--user=user [--group=group]]
+ [directory...]
+
+DESCRIPTION
+-----------
+A really simple TCP git daemon that normally listens on port "DEFAULT_GIT_PORT"
+aka 9418. It waits for a connection asking for a service, and will serve
+that service if it is enabled.
+
+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 '--export-all' parameter is specified). If you
+pass some directory paths as 'git daemon' arguments, you can further restrict
+the offers to a whitelist comprising of those.
+
+By default, only `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'.
+
+This is ideally suited for read-only updates, i.e., pulling from
+git repositories.
+
+An `upload-archive` also exists to serve 'git archive'.
+
+OPTIONS
+-------
+--strict-paths::
+ Match paths exactly (i.e. don't allow "/foo/repo" when the real path is
+ "/foo/repo.git" or "/foo/repo/.git") and don't do user-relative paths.
+ 'git daemon' will refuse to start when this option is enabled and no
+ whitelist is specified.
+
+--base-path=path::
+ Remap all the path requests as relative to the given path.
+ This is sort of "GIT root" - if you run 'git daemon' with
+ '--base-path=/srv/git' on example.com, then if you later try to pull
+ 'git://example.com/hello.git', 'git daemon' will interpret the path
+ as '/srv/git/hello.git'.
+
+--base-path-relaxed::
+ If --base-path is enabled and repo lookup fails, with this option
+ 'git daemon' will attempt to lookup without prefixing the base path.
+ This is useful for switching to --base-path usage, while still
+ allowing the old paths.
+
+--interpolated-path=pathtemplate::
+ To support virtual hosting, an interpolated path template can be
+ used to dynamically construct alternate paths. The template
+ supports %H for the target hostname as supplied by the client but
+ converted to all lowercase, %CH for the canonical hostname,
+ %IP for the server's IP address, %P for the port number,
+ and %D for the absolute path of the named repository.
+ After interpolation, the path is validated against the directory
+ whitelist.
+
+--export-all::
+ Allow pulling from all directories that look like GIT repositories
+ (have the 'objects' and 'refs' subdirectories), even if they
+ do not have the 'git-daemon-export-ok' file.
+
+--inetd::
+ Have the server run as an inetd service. Implies --syslog.
+ Incompatible with --port, --listen, --user and --group options.
+
+--listen=host_or_ipaddr::
+ Listen on a specific IP address or hostname. IP addresses can
+ be either an IPv4 address or an IPv6 address if supported. If IPv6
+ is not supported, then --listen=hostname is also not supported and
+ --listen must be given an IPv4 address.
+ Incompatible with '--inetd' option.
+
+--port=n::
+ Listen on an alternative port. Incompatible with '--inetd' option.
+
+--init-timeout=n::
+ Timeout between the moment the connection is established and the
+ client request is received (typically a rather low value, since
+ that should be basically immediate).
+
+--timeout=n::
+ Timeout for specific client sub-requests. This includes the time
+ it takes for the server to process the sub-request and the time spent
+ waiting for the next client's request.
+
+--max-connections=n::
+ Maximum number of concurrent clients, defaults to 32. Set it to
+ zero for no limit.
+
+--syslog::
+ Log to syslog instead of stderr. Note that this option does not imply
+ --verbose, thus by default only error conditions will be logged.
+
+--user-path::
+--user-path=path::
+ Allow {tilde}user notation to be used in requests. When
+ specified with no parameter, requests to
+ git://host/{tilde}alice/foo is taken as a request to access
+ 'foo' repository in the home directory of user `alice`.
+ If `--user-path=path` is specified, the same request is
+ taken as a request to access `path/foo` repository in
+ the home directory of user `alice`.
+
+--verbose::
+ Log details about the incoming connections and requested files.
+
+--reuseaddr::
+ Use SO_REUSEADDR when binding the listening socket.
+ This allows the server to restart without waiting for
+ old connections to time out.
+
+--detach::
+ Detach from the shell. Implies --syslog.
+
+--pid-file=file::
+ Save the process id in 'file'. Ignored when the daemon
+ is run under `--inetd`.
+
+--user=user::
+--group=group::
+ Change daemon's uid and gid before entering the service loop.
+ When only `--user` is given without `--group`, the
+ primary group ID for the user is used. The values of
+ the option are given to `getpwnam(3)` and `getgrnam(3)`
+ and numeric IDs are not supported.
++
+Giving these options is an error when used with `--inetd`; use
+the facility of inet daemon to achieve the same before spawning
+'git daemon' if needed.
+
+--enable=service::
+--disable=service::
+ Enable/disable the service site-wide per default. Note
+ that a service disabled site-wide can still be enabled
+ per repository if it is marked overridable and the
+ repository enables the service with a configuration
+ item.
+
+--allow-override=service::
+--forbid-override=service::
+ Allow/forbid overriding the site-wide default with per
+ repository configuration. By default, all the services
+ are overridable.
+
+<directory>::
+ A directory to add to the whitelist of allowed directories. Unless
+ --strict-paths is specified this will also include subdirectories
+ of each named directory.
+
+SERVICES
+--------
+
+These services can be globally enabled/disabled using the
+command line options of this command. If a finer-grained
+control is desired (e.g. to allow 'git archive' to be run
+against only in a few selected repositories the daemon serves),
+the per-repository configuration file can be used to enable or
+disable them.
+
+upload-pack::
+ This serves 'git fetch-pack' and 'git ls-remote'
+ clients. It is enabled by default, but a repository can
+ disable it by setting `daemon.uploadpack` configuration
+ item to `false`.
+
+upload-archive::
+ This serves 'git archive --remote'. It is disabled by
+ default, but a repository can enable it by setting
+ `daemon.uploadarch` configuration item to `true`.
+
+receive-pack::
+ This serves 'git send-pack' clients, allowing anonymous
+ push. It is disabled by default, as there is _no_
+ authentication in the protocol (in other words, anybody
+ can push anything into the repository, including removal
+ of refs). This is solely meant for a closed LAN setting
+ where everybody is friendly. This service can be
+ enabled by `daemon.receivepack` configuration item to
+ `true`.
+
+EXAMPLES
+--------
+We assume the following in /etc/services::
++
+------------
+$ grep 9418 /etc/services
+git 9418/tcp # Git Version Control System
+------------
+
+'git daemon' as inetd server::
+ To set up 'git daemon' as an inetd service that handles any
+ repository under the whitelisted set of directories, /pub/foo
+ and /pub/bar, place an entry like the following into
+ /etc/inetd all on one line:
++
+------------------------------------------------
+ git stream tcp nowait nobody /usr/bin/git
+ git daemon --inetd --verbose --export-all
+ /pub/foo /pub/bar
+------------------------------------------------
+
+
+'git daemon' as inetd server for virtual hosts::
+ To set up 'git daemon' as an inetd service that handles
+ repositories for different virtual hosts, `www.example.com`
+ and `www.example.org`, place an entry like the following into
+ `/etc/inetd` all on one line:
++
+------------------------------------------------
+ git stream tcp nowait nobody /usr/bin/git
+ git daemon --inetd --verbose --export-all
+ --interpolated-path=/pub/%H%D
+ /pub/www.example.org/software
+ /pub/www.example.com/software
+ /software
+------------------------------------------------
++
+In this example, the root-level directory `/pub` will contain
+a subdirectory for each virtual host name supported.
+Further, both hosts advertise repositories simply as
+`git://www.example.com/software/repo.git`. For pre-1.4.0
+clients, a symlink from `/software` into the appropriate
+default repository could be made as well.
+
+
+'git daemon' as regular daemon for virtual hosts::
+ To set up 'git daemon' as a regular, non-inetd service that
+ handles repositories for multiple virtual hosts based on
+ their IP addresses, start the daemon like this:
++
+------------------------------------------------
+ git daemon --verbose --export-all
+ --interpolated-path=/pub/%IP/%D
+ /pub/192.168.1.200/software
+ /pub/10.10.220.23/software
+------------------------------------------------
++
+In this example, the root-level directory `/pub` will contain
+a subdirectory for each virtual host IP address supported.
+Repositories can still be accessed by hostname though, assuming
+they correspond to these IP addresses.
+
+selectively enable/disable services per repository::
+ To enable 'git archive --remote' and disable 'git fetch' against
+ a repository, have the following in the configuration file in the
+ repository (that is the file 'config' next to 'HEAD', 'refs' and
+ 'objects').
++
+----------------------------------------------------------------
+ [daemon]
+ uploadpack = false
+ uploadarch = true
+----------------------------------------------------------------
+
+
+ENVIRONMENT
+-----------
+'git daemon' will set REMOTE_ADDR to the IP address of the client
+that connected to it, if the IP address is available. REMOTE_ADDR will
+be available in the environment of hooks called when
+services are performed.
+
+
+
+Author
+------
+Written by Linus Torvalds <torvalds@osdl.org>, YOSHIFUJI Hideaki
+<yoshfuji@linux-ipv6.org> and the git-list <git@vger.kernel.org>
+
+Documentation
+--------------
+Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
+
+GIT
+---
+Part of the linkgit:git[1] suite