GIT-ARCHIMPORT(1)                                            GIT-ARCHIMPORT(1)



NAME
       git-archimport - Import an Arch repository into git

SYNOPSIS
       git archimport [-h] [-v] [-o] [-a] [-f] [-T] [-D depth] [-t tempdir]
                      <archive/branch>[:<git-branch>] ...





DESCRIPTION
       Imports a project from one or more Arch repositories. It will follow
       branches and repositories within the namespaces defined by the
       <archive/branch> parameters supplied. If it cannot find the remote
       branch a merge comes from it will just import it as a regular commit.
       If it can find it, it will mark it as a merge whenever possible (see
       discussion below).


       The script expects you to provide the key roots where it can start the
       import from an initial import or tag type of Arch commit. It will
       follow and import new branches within the provided roots.


       It expects to be dealing with one project only. If it sees branches
       that have different roots, it will refuse to run. In that case, edit
       your <archive/branch> parameters to define clearly the scope of the
       import.


       git archimport uses tla extensively in the background to access the
       Arch repository. Make sure you have a recent version of tla available
       in the path. tla must know about the repositories you pass to git
       archimport.


       For the initial import, git archimport expects to find itself in an
       empty directory. To follow the development of a project that uses Arch,
       rerun git archimport with the same parameters as the initial import to
       perform incremental imports.


       While git archimport will try to create sensible branch names for the
       archives that it imports, it is also possible to specify git branch
       names manually. To do so, write a git branch name after each
       <archive/branch> parameter, separated by a colon. This way, you can
       shorten the Arch branch names and convert Arch jargon to git jargon,
       for example mapping a "PROJECT--devo--VERSION" branch to "master".


       Associating multiple Arch branches to one git branch is possible; the
       result will make the most sense only if no commits are made to the
       first branch, after the second branch is created. Still, this is useful
       to convert Arch repositories that had been rotated periodically.


MERGES
       Patch merge data from Arch is used to mark merges in git as well. git
       does not care much about tracking patches, and only considers a merge
       when a branch incorporates all the commits since the point they forked.
       The end result is that git will have a good idea of how far branches
       have diverged. So the import process does lose some patch-trading
       metadata.


       Fortunately, when you try and merge branches imported from Arch, git
       will find a good merge base, and it has a good chance of identifying
       patches that have been traded out-of-sequence between the branches.


OPTIONS
       -h     Display usage.


       -v     Verbose output.


       -T     Many tags. Will create a tag for every commit, reflecting the
              commit name in the Arch repository.


       -f     Use the fast patchset import strategy. This can be significantly
              faster for large trees, but cannot handle directory renames or
              permissions changes. The default strategy is slow and safe.


       -o     Use this for compatibility with old-style branch names used by
              earlier versions of git archimport. Old-style branch names were
              category--branch, whereas new-style branch names are
              archive,category--branch--version. In both cases, names given on
              the command-line will override the automatically-generated ones.


       -D <depth>
              Follow merge ancestry and attempt to import trees that have been
              merged from. Specify a depth greater than 1 if patch logs have
              been pruned.


       -a     Attempt to auto-register archives at
              http://mirrors.sourcecontrol.net:
              http://mirrors.sourcecontrol.net This is particularly useful
              with the -D option.


       -t <tmpdir>
              Override the default tempdir.


       <archive/branch>
              Archive/branch identifier in a format that tla log understands.


GIT
       Part of the git(1) suite




                                                             GIT-ARCHIMPORT(1)
