Documentation / technical / api-remote.txton commit Allow cloning to an existing empty directory (55892d2)
   1Remotes configuration API
   2=========================
   3
   4The API in remote.h gives access to the configuration related to
   5remotes. It handles all three configuration mechanisms historically
   6and currently used by git, and presents the information in a uniform
   7fashion. Note that the code also handles plain URLs without any
   8configuration, giving them just the default information.
   9
  10struct remote
  11-------------
  12
  13`name`::
  14
  15        The user's nickname for the remote
  16
  17`url`::
  18
  19        An array of all of the url_nr URLs configured for the remote
  20
  21`push`::
  22
  23         An array of refspecs configured for pushing, with
  24         push_refspec being the literal strings, and push_refspec_nr
  25         being the quantity.
  26
  27`fetch`::
  28
  29        An array of refspecs configured for fetching, with
  30        fetch_refspec being the literal strings, and fetch_refspec_nr
  31        being the quantity.
  32
  33`fetch_tags`::
  34
  35        The setting for whether to fetch tags (as a separate rule from
  36        the configured refspecs); -1 means never to fetch tags, 0
  37        means to auto-follow tags based on the default heuristic, 1
  38        means to always auto-follow tags, and 2 means to fetch all
  39        tags.
  40
  41`receivepack`, `uploadpack`::
  42
  43        The configured helper programs to run on the remote side, for
  44        git-native protocols.
  45
  46`http_proxy`::
  47
  48        The proxy to use for curl (http, https, ftp, etc.) URLs.
  49
  50struct remotes can be found by name with remote_get(), and iterated
  51through with for_each_remote(). remote_get(NULL) will return the
  52default remote, given the current branch and configuration.
  53
  54struct refspec
  55--------------
  56
  57A struct refspec holds the parsed interpretation of a refspec. If it
  58will force updates (starts with a '+'), force is true. If it is a
  59pattern (sides end with '*') pattern is true. src and dest are the two
  60sides (if a pattern, only the part outside of the wildcards); if there
  61is only one side, it is src, and dst is NULL; if sides exist but are
  62empty (i.e., the refspec either starts or ends with ':'), the
  63corresponding side is "".
  64
  65This parsing can be done to an array of strings to give an array of
  66struct refpsecs with parse_ref_spec().
  67
  68remote_find_tracking(), given a remote and a struct refspec with
  69either src or dst filled out, will fill out the other such that the
  70result is in the "fetch" specification for the remote (note that this
  71evaluates patterns and returns a single result).
  72
  73struct branch
  74-------------
  75
  76Note that this may end up moving to branch.h
  77
  78struct branch holds the configuration for a branch. It can be looked
  79up with branch_get(name) for "refs/heads/{name}", or with
  80branch_get(NULL) for HEAD.
  81
  82It contains:
  83
  84`name`::
  85
  86        The short name of the branch.
  87
  88`refname`::
  89
  90        The full path for the branch ref.
  91
  92`remote_name`::
  93
  94        The name of the remote listed in the configuration.
  95
  96`remote`::
  97
  98        The struct remote for that remote.
  99
 100`merge_name`::
 101
 102        An array of the "merge" lines in the configuration.
 103
 104`merge`::
 105
 106        An array of the struct refspecs used for the merge lines. That
 107        is, merge[i]->dst is a local tracking ref which should be
 108        merged into this branch by default.
 109
 110`merge_nr`::
 111
 112        The number of merge configurations
 113
 114branch_has_merge_config() returns true if the given branch has merge
 115configuration given.
 116
 117Other stuff
 118-----------
 119
 120There is other stuff in remote.h that is related, in general, to the
 121process of interacting with remotes.
 122
 123(Daniel Barkalow)