Merge branch 'sr/vcs-helper'

[git.git] / Documentation / git-remote-helpers.txt

diff --git a/Documentation/git-remote-helpers.txt b/Documentation/git-remote-helpers.txt
index f4b6a5aea3bb3b1076877cffa8beb17936114468..5cfdc0cfc553dc01f6f1c7cb185e79449ee0b0a8 100644 (file)
--- a/Documentation/git-remote-helpers.txt
+++ b/Documentation/git-remote-helpers.txt
@@ -34,15 +34,51 @@ Commands are given by the caller on the helper's standard input, one per line.
        value of the ref. A space-separated list of attributes follows
        the name; unrecognized attributes are ignored. After the
        complete list, outputs a blank line.
++
+If 'push' is supported this may be called as 'list for-push'
+to obtain the current refs prior to sending one or more 'push'
+commands to the helper.
+
+'option' <name> <value>::
+       Set the transport helper option <name> to <value>.  Outputs a
+       single line containing one of 'ok' (option successfully set),
+       'unsupported' (option not recognized) or 'error <msg>'
+       (option <name> is supported but <value> is not correct
+       for it).  Options should be set before other commands,
+       and may how those commands behave.
++
+Supported if the helper has the "option" capability.
 
 'fetch' <sha1> <name>::
-       Fetches the given object, writing the necessary objects to the
-       database. Outputs a blank line when the fetch is
-       complete. Only objects which were reported in the ref list
-       with a sha1 may be fetched this way.
+       Fetches the given object, writing the necessary objects
+       to the database.  Fetch commands are sent in a batch, one
+       per line, and the batch is terminated with a blank line.
+       Outputs a single blank line when all fetch commands in the
+       same batch are complete. Only objects which were reported
+       in the ref list with a sha1 may be fetched this way.
++
+Optionally may output a 'lock <file>' line indicating a file under
+GIT_DIR/objects/pack which is keeping a pack until refs can be
+suitably updated.
 +
 Supported if the helper has the "fetch" capability.
 
+'push' +<src>:<dst>::
+       Pushes the given <src> commit or branch locally to the
+       remote branch described by <dst>.  A batch sequence of
+       one or more push commands is terminated with a blank line.
++
+Zero or more protocol options may be entered after the last 'push'
+command, before the batch's terminating blank line.
++
+When the push is complete, outputs one or more 'ok <dst>' or
+'error <dst> <why>?' lines to indicate success or failure of
+each pushed ref.  The status report output is terminated by
+a blank line.  The option field <why> may be quoted in a C
+style string if it contains an LF.
++
+Supported if the helper has the "push" capability.
+
 'import' <name>::
        Produces a fast-import stream which imports the current value
        of the named ref. It may additionally import other refs as
@@ -68,6 +104,12 @@ CAPABILITIES
 'fetch'::
        This helper supports the 'fetch' command.
 
+'option'::
+       This helper supports the option command.
+
+'push'::
+       This helper supports the 'push' command.
+
 'import'::
        This helper supports the 'import' command.
 
@@ -84,10 +126,45 @@ CAPABILITIES
 REF LIST ATTRIBUTES
 -------------------
 
+'for-push'::
+       The caller wants to use the ref list to prepare push
+       commands.  A helper might chose to acquire the ref list by
+       opening a different type of connection to the destination.
+
 'unchanged'::
        This ref is unchanged since the last import or fetch, although
        the helper cannot necessarily determine what value that produced.
 
+OPTIONS
+-------
+'option verbosity' <N>::
+       Change the level of messages displayed by the helper.
+       When N is 0 the end-user has asked the process to be
+       quiet, and the helper should produce only error output.
+       N of 1 is the default level of verbosity, higher values
+       of N correspond to the number of -v flags passed on the
+       command line.
+
+'option progress' \{'true'|'false'\}::
+       Enable (or disable) progress messages displayed by the
+       transport helper during a command.
+
+'option depth' <depth>::
+       Deepen the history of a shallow repository.
+
+'option followtags' \{'true'|'false'\}::
+       If enabled the helper should automatically fetch annotated
+       tag objects if the object the tag points at was transferred
+       during the fetch command.  If the tag is not fetched by
+       the helper a second fetch command will usually be sent to
+       ask for the tag specifically.  Some helpers may be able to
+       use this option to avoid a second network connection.
+
+'option dry-run' \{'true'|'false'\}:
+       If true, pretend the operation completed successfully,
+       but don't actually change any repository data.  For most
+       helpers this only applies to the 'push', if supported.
+
 Documentation
 -------------
 Documentation by Daniel Barkalow.