63 lines
2.3 KiB
Bash
Executable File
63 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# Usage: ssh git@host fork <repo1> <repo2>
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#
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# Forks repo1 to repo2. You must have read permissions on repo1, and create
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# ("C") permissions for repo2, which of course must not exist.
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#
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# A fork is functionally the same as cloning repo1 to a client and pushing it
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# to a new repo2. It's just a little more efficient, not just in network
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# traffic but because it uses git clone's "-l" option to share the object
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# store also, so it is likely to be almost instantaneous, regardless of how
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# big the repo actually is.
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#
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# The only caveat is that the repo you cloned *from* must not later become
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# unavailable in any way. If you cannot be sure of this, take the scenic
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# route (clone repo1, push to repo2).
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die() { echo "$@" >&2; exit 1; }
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usage() { perl -lne 'print substr($_, 2) if /^# Usage/../^$/' < $0; exit 1; }
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[ -z "$1" ] && usage
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[ "$1" = "-h" ] && usage
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[ -z "$GL_USER" ] && die GL_USER not set
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# ----------------------------------------------------------------------
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from=$1; shift
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to=$1; shift
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[ -z "$to" ] && usage
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gitolite access -q "$from" $GL_USER R any || die "'$from' does not exist or you are not allowed to read it"
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gitolite access -q "$to" $GL_USER ^C any || die "'$to' already exists or you are not allowed to create it"
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# ----------------------------------------------------------------------
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# IMPORTANT NOTE: checking whether someone can create a repo is done as above.
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# However, make sure that the env var GL_USER is set, and that too to the same
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# value as arg-2 of the access command), otherwise it won't work.
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# Ideally, you'll leave such code to me. There's a reason ^C is not listed in
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# the help message for 'gitolite access'.
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# ----------------------------------------------------------------------
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# clone $from to $to
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git clone --bare -l $GL_REPO_BASE/$from.git $GL_REPO_BASE/$to.git
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[ $? -ne 0 ] && exit 1
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echo "$from forked to $to" >&2
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# fix up creator, default role permissions (gl-perms), and hooks
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cd $GL_REPO_BASE/$to.git
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echo $GL_USER > gl-creator
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if gitolite query-rc -q DEFAULT_ROLE_PERMS
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then
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gitolite query-rc DEFAULT_ROLE_PERMS > gl-perms
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fi
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ln -sf `gitolite query-rc GL_ADMIN_BASE`/hooks/common/* hooks
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# record where you came from
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echo "$from" > gl-forked-from
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# trigger post_create
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gitolite trigger POST_CREATE $to $GL_USER fork
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