# See git-sh-setup why.
unset CDPATH
+OPTIONS_SPEC="\
+git-clone [options] [--] <repo> [<dir>]
+--
+n,no-checkout don't create a checkout
+bare create a bare repository
+naked create a bare repository
+l,local to clone from a local repository
+no-hardlinks don't use local hardlinks, always copy
+s,shared setup as a shared repository
+template= path to the template directory
+q,quiet be quiet
+reference= reference repository
+o,origin= use <name> instead of 'origin' to track upstream
+u,upload-pack= path to git-upload-pack on the remote
+depth= create a shallow clone of that depth
+
+use-separate-remote compatibility, do not use
+no-separate-remote compatibility, do not use"
+
die() {
echo >&2 "$@"
exit 1
}
usage() {
- die "Usage: $0 [--template=<template_directory>] [--reference <reference-repo>] [--bare] [-l [-s]] [-q] [-u <upload-pack>] [--origin <name>] [--depth <n>] [-n] <repo> [<dir>]"
+ exec "$0" -h
}
+eval "$(echo "$OPTIONS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)"
+
get_repo_base() {
(
cd "`/bin/pwd`" &&
no_progress=
local_explicitly_asked_for=
test -t 1 || no_progress=--no-progress
-while
- case "$#,$1" in
- 0,*) break ;;
- *,-n|*,--no|*,--no-|*,--no-c|*,--no-ch|*,--no-che|*,--no-chec|\
- *,--no-check|*,--no-checko|*,--no-checkou|*,--no-checkout)
- no_checkout=yes ;;
- *,--na|*,--nak|*,--nake|*,--naked|\
- *,-b|*,--b|*,--ba|*,--bar|*,--bare) bare=yes ;;
- *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local)
- local_explicitly_asked_for=yes
- use_local_hardlink=yes ;;
- *,--no-h|*,--no-ha|*,--no-har|*,--no-hard|*,--no-hardl|\
- *,--no-hardli|*,--no-hardlin|*,--no-hardlink|*,--no-hardlinks)
- use_local_hardlink=no ;;
- *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
- local_shared=yes; ;;
- 1,--template) usage ;;
- *,--template)
+
+while test $# != 0
+do
+ case "$1" in
+ -n|--no-checkout)
+ no_checkout=yes ;;
+ --naked|--bare)
+ bare=yes ;;
+ -l|--local)
+ local_explicitly_asked_for=yes
+ use_local_hardlink=yes
+ ;;
+ --no-hardlinks)
+ use_local_hardlink=no ;;
+ -s|--shared)
+ local_shared=yes ;;
+ --template)
shift; template="--template=$1" ;;
- *,--template=*)
- template="$1" ;;
- *,-q|*,--quiet) quiet=-q ;;
- *,--use-separate-remote) ;;
- *,--no-separate-remote)
+ -q|--quiet)
+ quiet=-q ;;
+ --use-separate-remote|--no-separate-remote)
die "clones are always made with separate-remote layout" ;;
- 1,--reference) usage ;;
- *,--reference)
+ --reference)
shift; reference="$1" ;;
- *,--reference=*)
- reference=`expr "z$1" : 'z--reference=\(.*\)'` ;;
- *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
- case "$2" in
+ -o|--origin)
+ shift;
+ case "$1" in
'')
usage ;;
*/*)
- die "'$2' is not suitable for an origin name"
+ die "'$1' is not suitable for an origin name"
esac
- git check-ref-format "heads/$2" ||
- die "'$2' is not suitable for a branch name"
+ git check-ref-format "heads/$1" ||
+ die "'$1' is not suitable for a branch name"
test -z "$origin_override" ||
die "Do not give more than one --origin options."
origin_override=yes
- origin="$2"; shift
+ origin="$1"
;;
- 1,-u|1,--upload-pack) usage ;;
- *,-u|*,--upload-pack)
+ -u|--upload-pack)
shift
upload_pack="--upload-pack=$1" ;;
- *,--upload-pack=*)
- upload_pack=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
- 1,--depth) usage;;
- *,--depth)
+ --depth)
+ shift
+ depth="--depth=$1" ;;
+ --)
shift
- depth="--depth=$1";;
- *,-*) usage ;;
- *) break ;;
+ break ;;
+ *)
+ usage ;;
esac
-do
shift
done
# it is local
if base=$(get_repo_base "$repo"); then
repo="$base"
- local=yes
+ if test -z "$depth"
+ then
+ local=yes
+ fi
+elif test -f "$repo"
+then
+ case "$repo" in /*) ;; *) repo="$PWD/$repo" ;; esac
+fi
+
+# Decide the directory name of the new repository
+if test -n "$2"
+then
+ dir="$2"
+else
+ # Derive one from the repository name
+ # Try using "humanish" part of source repo if user didn't specify one
+ if test -f "$repo"
+ then
+ # Cloning from a bundle
+ dir=$(echo "$repo" | sed -e 's|/*\.bundle$||' -e 's|.*/||g')
+ else
+ dir=$(echo "$repo" |
+ sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
+ fi
fi
-dir="$2"
-# Try using "humanish" part of source repo if user didn't specify one
-[ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
[ -e "$dir" ] && die "destination directory '$dir' already exists."
[ yes = "$bare" ] && unset GIT_WORK_TREE
[ -n "$GIT_WORK_TREE" ] && [ -e "$GIT_WORK_TREE" ] &&
trap cleanup 0
mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage
test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" &&
-W=$(cd "$GIT_WORK_TREE" && pwd) && export GIT_WORK_TREE="$W"
+W=$(cd "$GIT_WORK_TREE" && pwd) && GIT_WORK_TREE="$W" && export GIT_WORK_TREE
if test yes = "$bare" || test -n "$GIT_WORK_TREE"; then
GIT_DIR="$D"
else
find objects -type f -print | sed -e 1q)
# objects directory should not be empty because
# we are cloning!
- test -f "$repo/$sample_file" || exit
+ test -f "$repo/$sample_file" ||
+ die "fatal: cannot clone empty repository"
if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null
then
rm -f "$GIT_DIR/objects/sample"
fi
;;
*)
- case "$upload_pack" in
- '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";;
- *) git-fetch-pack --all -k $quiet "$upload_pack" $depth $no_progress "$repo" ;;
- esac >"$GIT_DIR/CLONE_HEAD" ||
+ if [ -f "$repo" ] ; then
+ git bundle unbundle "$repo" > "$GIT_DIR/CLONE_HEAD" ||
+ die "unbundle from '$repo' failed."
+ else
+ case "$upload_pack" in
+ '') git-fetch-pack --all -k $quiet $depth $no_progress "$repo";;
+ *) git-fetch-pack --all -k \
+ $quiet "$upload_pack" $depth $no_progress "$repo" ;;
+ esac >"$GIT_DIR/CLONE_HEAD" ||
die "fetch-pack from '$repo' failed."
+ fi
;;
esac
;;
cd "$D" || exit
fi
-if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD"
+if test -z "$bare"
then
# a non-bare repository is always in separate-remote layout
remote_top="refs/remotes/$origin"
- head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
+ head_sha1=
+ test ! -r "$GIT_DIR/REMOTE_HEAD" || head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
case "$head_sha1" in
'ref: refs/'*)
# Uh-oh, the remote told us (http transport done against
git config branch."$head_points_at".merge "refs/heads/$head_points_at"
;;
'')
- # Source had detached HEAD pointing nowhere
- git update-ref --no-deref HEAD "$head_sha1" &&
- rm -f "refs/remotes/$origin/HEAD"
+ if test -z "$head_sha1"
+ then
+ # Source had nonexistent ref in HEAD
+ echo >&2 "Warning: Remote HEAD refers to nonexistent ref, unable to checkout."
+ no_checkout=t
+ else
+ # Source had detached HEAD pointing nowhere
+ git update-ref --no-deref HEAD "$head_sha1" &&
+ rm -f "refs/remotes/$origin/HEAD"
+ fi
;;
esac