Documentation/git-archimport.txt

   1 git-archimport(1)
   2 =================
   3
   4 NAME
   5 ----
   6 git-archimport - Import an Arch repository into git
   7
   8
   9 SYNOPSIS
  10 --------
  11 [verse]
  12 'git archimport' [-h] [-v] [-o] [-a] [-f] [-T] [-D depth] [-t tempdir]
  13                <archive/branch>[:<git-branch>] ...
  14
  15 DESCRIPTION
  16 -----------
  17 Imports a project from one or more Arch repositories. It will follow branches
  18 and repositories within the namespaces defined by the <archive/branch>
  19 parameters supplied. If it cannot find the remote branch a merge comes from
  20 it will just import it as a regular commit. If it can find it, it will mark it
  21 as a merge whenever possible (see discussion below).
  22
  23 The script expects you to provide the key roots where it can start the import
  24 from an 'initial import' or 'tag' type of Arch commit. It will follow and
  25 import new branches within the provided roots.
  26
  27 It expects to be dealing with one project only. If it sees
  28 branches that have different roots, it will refuse to run. In that case,
  29 edit your <archive/branch> parameters to define clearly the scope of the
  30 import.
  31
  32 `git-archimport` uses `tla` extensively in the background to access the
  33 Arch repository.
  34 Make sure you have a recent version of `tla` available in the path. `tla` must
  35 know about the repositories you pass to `git-archimport`.
  36
  37 For the initial import `git-archimport` expects to find itself in an empty
  38 directory. To follow the development of a project that uses Arch, rerun
  39 `git-archimport` with the same parameters as the initial import to perform
  40 incremental imports.
  41
  42 While git-archimport will try to create sensible branch names for the
  43 archives that it imports, it is also possible to specify git branch names
  44 manually.  To do so, write a git branch name after each <archive/branch>
  45 parameter, separated by a colon.  This way, you can shorten the Arch
  46 branch names and convert Arch jargon to git jargon, for example mapping a
  47 "PROJECT--devo--VERSION" branch to "master".
  48
  49 Associating multiple Arch branches to one git branch is possible; the
  50 result will make the most sense only if no commits are made to the first
  51 branch, after the second branch is created.  Still, this is useful to
  52 convert Arch repositories that had been rotated periodically.
  53
  54
  55 MERGES
  56 ------
  57 Patch merge data from Arch is used to mark merges in git as well. git
  58 does not care much about tracking patches, and only considers a merge when a
  59 branch incorporates all the commits since the point they forked. The end result
  60 is that git will have a good idea of how far branches have diverged. So the
  61 import process does lose some patch-trading metadata.
  62
  63 Fortunately, when you try and merge branches imported from Arch,
  64 git will find a good merge base, and it has a good chance of identifying
  65 patches that have been traded out-of-sequence between the branches.
  66
  67 OPTIONS
  68 -------
  69
  70 -h::
  71         Display usage.
  72
  73 -v::
  74         Verbose output.
  75
  76 -T::
  77         Many tags. Will create a tag for every commit, reflecting the commit
  78         name in the Arch repository.
  79
  80 -f::
  81         Use the fast patchset import strategy.  This can be significantly
  82         faster for large trees, but cannot handle directory renames or
  83         permissions changes.  The default strategy is slow and safe.
  84
  85 -o::
  86         Use this for compatibility with old-style branch names used by
  87         earlier versions of git-archimport.  Old-style branch names
  88         were category--branch, whereas new-style branch names are
  89         archive,category--branch--version.  In both cases, names given
  90         on the command-line will override the automatically-generated
  91         ones.
  92
  93 -D <depth>::
  94         Follow merge ancestry and attempt to import trees that have been
  95         merged from.  Specify a depth greater than 1 if patch logs have been
  96         pruned.
  97
  98 -a::
  99         Attempt to auto-register archives at http://mirrors.sourcecontrol.net
 100         This is particularly useful with the -D option.
 101
 102 -t <tmpdir>::
 103         Override the default tempdir.
 104
 105
 106 <archive/branch>::
 107         Archive/branch identifier in a format that `tla log` understands.
 108
 109
 110 Author
 111 ------
 112 Written by Martin Langhoff <martin@catalyst.net.nz>.
 113
 114 Documentation
 115 --------------
 116 Documentation by Junio C Hamano, Martin Langhoff and the git-list <git@vger.kernel.org>.
 117
 118 GIT
 119 ---
 120 Part of the linkgit:git[1] suite