6 git-remote-helpers - Helper programs for interoperation with remote git
10 'git remote-<transport>' <remote>
15 These programs are normally not used directly by end users, but are
16 invoked by various git programs that interact with remote repositories
17 when the repository they would operate on will be accessed using
18 transport code not linked into the main git binary. Various particular
19 helper programs will behave as documented here.
24 Commands are given by the caller on the helper's standard input, one per line.
27 Lists the capabilities of the helper, one per line, ending
31 Lists the refs, one per line, in the format "<value> <name>
32 [<attr> ...]". The value may be a hex sha1 hash, "@<dest>" for
33 a symref, or "?" to indicate that the helper could not get the
34 value of the ref. A space-separated list of attributes follows
35 the name; unrecognized attributes are ignored. After the
36 complete list, outputs a blank line.
38 If 'push' is supported this may be called as 'list for-push'
39 to obtain the current refs prior to sending one or more 'push'
40 commands to the helper.
42 'option' <name> <value>::
43 Set the transport helper option <name> to <value>. Outputs a
44 single line containing one of 'ok' (option successfully set),
45 'unsupported' (option not recognized) or 'error <msg>'
46 (option <name> is supported but <value> is not correct
47 for it). Options should be set before other commands,
48 and may how those commands behave.
50 Supported if the helper has the "option" capability.
52 'fetch' <sha1> <name>::
53 Fetches the given object, writing the necessary objects
54 to the database. Fetch commands are sent in a batch, one
55 per line, and the batch is terminated with a blank line.
56 Outputs a single blank line when all fetch commands in the
57 same batch are complete. Only objects which were reported
58 in the ref list with a sha1 may be fetched this way.
60 Optionally may output a 'lock <file>' line indicating a file under
61 GIT_DIR/objects/pack which is keeping a pack until refs can be
64 Supported if the helper has the "fetch" capability.
67 Pushes the given <src> commit or branch locally to the
68 remote branch described by <dst>. A batch sequence of
69 one or more push commands is terminated with a blank line.
71 Zero or more protocol options may be entered after the last 'push'
72 command, before the batch's terminating blank line.
74 When the push is complete, outputs one or more 'ok <dst>' or
75 'error <dst> <why>?' lines to indicate success or failure of
76 each pushed ref. The status report output is terminated by
77 a blank line. The option field <why> may be quoted in a C
78 style string if it contains an LF.
80 Supported if the helper has the "push" capability.
83 Produces a fast-import stream which imports the current value
84 of the named ref. It may additionally import other refs as
85 needed to construct the history efficiently. The script writes
86 to a helper-specific private namespace. The value of the named
87 ref should be written to a location in this namespace derived
88 by applying the refspecs from the "refspec" capability to the
91 Supported if the helper has the "import" capability.
93 If a fatal error occurs, the program writes the error message to
94 stderr and exits. The caller should expect that a suitable error
95 message has been printed if the child closes the connection without
96 completing a valid response for the current command.
98 Additional commands may be supported, as may be determined from
99 capabilities reported by the helper.
105 This helper supports the 'fetch' command.
108 This helper supports the option command.
111 This helper supports the 'push' command.
114 This helper supports the 'import' command.
117 When using the import command, expect the source ref to have
118 been written to the destination ref. The earliest applicable
119 refspec takes precedence. For example
120 "refs/heads/*:refs/svn/origin/branches/*" means that, after an
121 "import refs/heads/name", the script has written to
122 refs/svn/origin/branches/name. If this capability is used at
123 all, it must cover all refs reported by the list command; if
124 it is not used, it is effectively "*:*"
130 The caller wants to use the ref list to prepare push
131 commands. A helper might chose to acquire the ref list by
132 opening a different type of connection to the destination.
135 This ref is unchanged since the last import or fetch, although
136 the helper cannot necessarily determine what value that produced.
140 'option verbosity' <N>::
141 Change the level of messages displayed by the helper.
142 When N is 0 the end-user has asked the process to be
143 quiet, and the helper should produce only error output.
144 N of 1 is the default level of verbosity, higher values
145 of N correspond to the number of -v flags passed on the
148 'option progress' \{'true'|'false'\}::
149 Enable (or disable) progress messages displayed by the
150 transport helper during a command.
152 'option depth' <depth>::
153 Deepen the history of a shallow repository.
155 'option followtags' \{'true'|'false'\}::
156 If enabled the helper should automatically fetch annotated
157 tag objects if the object the tag points at was transferred
158 during the fetch command. If the tag is not fetched by
159 the helper a second fetch command will usually be sent to
160 ask for the tag specifically. Some helpers may be able to
161 use this option to avoid a second network connection.
163 'option dry-run' \{'true'|'false'\}:
164 If true, pretend the operation completed successfully,
165 but don't actually change any repository data. For most
166 helpers this only applies to the 'push', if supported.
170 Documentation by Daniel Barkalow.
174 Part of the linkgit:git[1] suite