Some workflows require coordinated development between repositories on
machines that can never be connected. This utility unpacks a bundle
containing objects and associated references (heads or tags) into the
current repository, effectively supporting git-push like operations
between disconnected systems.
Signed-off-by: Mark Levedahl <mdl123@xxxxxxxxxxx>
---
git-unbundle | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 75 insertions(+), 0 deletions(-)
create mode 100755 git-unbundle
diff --git a/git-unbundle b/git-unbundle
new file mode 100755
index 0000000..5ea4ae6
--- /dev/null
+++ b/git-unbundle
@@ -0,0 +1,75 @@
+#!/bin/sh
+# unpack a git-bundle file into current repository
+#
+# See git-bundle.
+
+die() {
+ echo >&2 "$@"
+ exit 1
+}
+
+bfile=bundle.zip
+force=
+shallow=
+while case "$#" in 0) break ;; esac
+do
+ case "$1" in
+ --bare)
+ export GIT_DIR=.;;
+ -f|--f|--fo|--for|--forc|--force)
+ force=1;;
+ -h|--h|--he|--hel|--help)
+ echo "usage: git-unbundle [--bare] [-f|--force] [--shallow] [bundle (default is bundle.zip)]"
+ exit;;
+ -s|--s|--sh|--sha|--shal|--shall|--shallo|--shallow)
+ shallow=1;;
+ -*)
+ die "unknown option: $1";;
+ *)
+ bfile="$1";;
+ esac
+ shift
+done
+
+[ -e "$bfile" ] || die "cannot find $bfile"
+GIT_DIR=$(git-rev-parse --git-dir) || die "Not in a git directory"
+
+# get the objects
+unzip -p "$bfile" .gitBundlePack | git-unpack-objects
+
+# check each reference, assure that the result would be valid before updating local ref
+unzip -p "$bfile" .gitBundleReferences | while read sha1 ref ; do
+ if [ -z "$shallow" ] ; then
+ result=$(git fsck $sha1)
+ havemissing=$(echo "$result" | grep '^missing')
+ else
+ # accept a shallow transfer
+ havemissing=
+ fi
+ ok=
+ if [ ! -z "$havemissing" ] ; then
+ echo "Not updating: $ref to $sha1"
+ echo "Bundle does not contain all required objects. (possibly partial) errors:"
+ echo "$result" | head
+ elif [ -z "$force" ] ; then
+ # update only if non-fastforward
+ local=$(git-rev-parse --verify "$ref^0" 2>/dev/null)
+ if [ ! -z "$local" ] ; then
+ mb=$(git-merge-base $local $sha1)
+ if [ "$mb" != "$local" ] ; then
+ echo "Not applying non-fast forward update: $ref"
+ else
+ ok=1
+ fi
+ else
+ ok=1
+ fi
+ else
+ #forced, accept non-fast forward update
+ ok=1
+ fi
+ if [ ! -z "$ok" ] ; then
+ echo "updating: $ref to $sha1"
+ git-update-ref -m "git-unbundle update" $ref $sha1
+ fi
+done
--
1.5.0.rc3.24.g0c5e
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