#
# Clone a repository into a different directory that does not yet exist.
-usage() {
- echo >&2 "* git clone [-l [-s]] [-q] [-u <upload-pack>] <repo> <dir>"
+# See git-sh-setup why.
+unset CDPATH
+
+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>]"
+}
+
get_repo_base() {
- (cd "$1" && (cd .git ; pwd)) 2> /dev/null
+ (
+ cd "`/bin/pwd`" &&
+ cd "$1" &&
+ {
+ cd .git
+ pwd
+ }
+ ) 2>/dev/null
}
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
http_fetch () {
# $1 = Remote, $2 = Local
- curl -nsf $curl_extra_args "$1" >"$2"
+ curl -nsfL $curl_extra_args "$1" >"$2"
}
clone_dumb_http () {
# $1 - remote, $2 - local
cd "$2" &&
- clone_tmp='.git/clone-tmp' &&
+ clone_tmp="$GIT_DIR/clone-tmp" &&
mkdir -p "$clone_tmp" || exit 1
- http_fetch "$1/info/refs" "$clone_tmp/refs" &&
- http_fetch "$1/objects/info/packs" "$clone_tmp/packs" || {
- echo >&2 "Cannot get remote repository information.
+ if [ -n "$GIT_CURL_FTP_NO_EPSV" -o \
+ "`git-config --bool http.noEPSV`" = true ]; then
+ curl_extra_args="${curl_extra_args} --disable-epsv"
+ fi
+ http_fetch "$1/info/refs" "$clone_tmp/refs" ||
+ die "Cannot get remote repository information.
Perhaps git-update-server-info needs to be run there?"
- exit 1;
- }
- while read type name
- do
- case "$type" in
- P) ;;
- *) continue ;;
- esac &&
-
- idx=`expr "$name" : '\(.*\)\.pack'`.idx
- http_fetch "$1/objects/pack/$name" ".git/objects/pack/$name" &&
- http_fetch "$1/objects/pack/$idx" ".git/objects/pack/$idx" &&
- git-verify-pack ".git/objects/pack/$idx" || exit 1
- done <"$clone_tmp/packs"
-
+ test "z$quiet" = z && v=-v || v=
while read sha1 refname
do
- name=`expr "$refname" : 'refs/\(.*\)'` &&
- git-http-fetch -v -a -w "$name" "$name" "$1/" || exit 1
+ name=`expr "z$refname" : 'zrefs/\(.*\)'` &&
+ case "$name" in
+ *^*) continue;;
+ esac
+ case "$bare,$name" in
+ yes,* | ,heads/* | ,tags/*) ;;
+ *) continue ;;
+ esac
+ if test -n "$use_separate_remote" &&
+ branch_name=`expr "z$name" : 'zheads/\(.*\)'`
+ then
+ tname="remotes/$origin/$branch_name"
+ else
+ tname=$name
+ fi
+ git-http-fetch $v -a -w "$tname" "$sha1" "$1" || exit 1
done <"$clone_tmp/refs"
rm -fr "$clone_tmp"
+ http_fetch "$1/HEAD" "$GIT_DIR/REMOTE_HEAD" ||
+ rm -f "$GIT_DIR/REMOTE_HEAD"
}
quiet=
+local=no
use_local=no
local_shared=no
+unset template
+no_checkout=
upload_pack=
+bare=
+reference=
+origin=
+origin_override=
+use_separate_remote=t
+depth=
+no_progress=
+test -t 1 || no_progress=--no-progress
while
case "$#,$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) use_local=yes ;;
*,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared)
- local_shared=yes ;;
+ local_shared=yes; use_local=yes ;;
+ 1,--template) usage ;;
+ *,--template)
+ shift; template="--template=$1" ;;
+ *,--template=*)
+ template="$1" ;;
*,-q|*,--quiet) quiet=-q ;;
+ *,--use-separate-remote) ;;
+ *,--no-separate-remote)
+ die "clones are always made with separate-remote layout" ;;
+ 1,--reference) usage ;;
+ *,--reference)
+ shift; reference="$1" ;;
+ *,--reference=*)
+ reference=`expr "z$1" : 'z--reference=\(.*\)'` ;;
+ *,-o|*,--or|*,--ori|*,--orig|*,--origi|*,--origin)
+ case "$2" in
+ '')
+ usage ;;
+ */*)
+ die "'$2' is not suitable for an origin name"
+ esac
+ git-check-ref-format "heads/$2" ||
+ die "'$2' is not suitable for a branch name"
+ test -z "$origin_override" ||
+ die "Do not give more than one --origin options."
+ origin_override=yes
+ origin="$2"; shift
+ ;;
1,-u|1,--upload-pack) usage ;;
*,-u|*,--upload-pack)
shift
- upload_pack="--exec=$1" ;;
+ upload_pack="--upload-pack=$1" ;;
+ *,--upload-pack=*)
+ upload_pack=--upload-pack=$(expr "z$1" : 'z-[^=]*=\(.*\)') ;;
+ 1,--depth) usage;;
+ *,--depth)
+ shift
+ depth="--depth=$1";;
*,-*) usage ;;
*) break ;;
esac
shift
done
+repo="$1"
+test -n "$repo" ||
+ die 'you must specify a repository to clone.'
+
+# --bare implies --no-checkout and --no-separate-remote
+if test yes = "$bare"
+then
+ if test yes = "$origin_override"
+ then
+ die '--bare and --origin $origin options are incompatible.'
+ fi
+ no_checkout=yes
+ use_separate_remote=
+fi
+
+if test -z "$origin"
+then
+ origin=origin
+fi
+
# Turn the source into an absolute path if
# it is local
-repo="$1"
-local=no
if base=$(get_repo_base "$repo"); then
repo="$base"
local=yes
fi
dir="$2"
-mkdir "$dir" &&
-D=$(
- (cd "$dir" && git-init-db && pwd)
-) &&
-test -d "$D" || usage
+# Try using "humanish" part of source repo if user didn't specify one
+[ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
+[ -e "$dir" ] && die "destination directory '$dir' already exists."
+mkdir -p "$dir" &&
+D=$(cd "$dir" && pwd) &&
+trap 'err=$?; cd ..; rm -rf "$D"; exit $err' 0
+case "$bare" in
+yes)
+ GIT_DIR="$D" ;;
+*)
+ GIT_DIR="$D/.git" ;;
+esac && export GIT_DIR && git-init ${template+"$template"} || usage
+
+if test -n "$reference"
+then
+ ref_git=
+ if test -d "$reference"
+ then
+ if test -d "$reference/.git/objects"
+ then
+ ref_git="$reference/.git"
+ elif test -d "$reference/objects"
+ then
+ ref_git="$reference"
+ fi
+ fi
+ if test -n "$ref_git"
+ then
+ ref_git=$(cd "$ref_git" && pwd)
+ echo "$ref_git/objects" >"$GIT_DIR/objects/info/alternates"
+ (
+ GIT_DIR="$ref_git" git for-each-ref \
+ --format='%(objectname) %(*objectname)'
+ ) |
+ while read a b
+ do
+ test -z "$a" ||
+ git update-ref "refs/reference-tmp/$a" "$a"
+ test -z "$b" ||
+ git update-ref "refs/reference-tmp/$b" "$b"
+ done
+ else
+ die "reference repository '$reference' is not a local directory."
+ fi
+fi
+
+rm -f "$GIT_DIR/CLONE_HEAD"
# We do local magic only when the user tells us to.
case "$local,$use_local" in
yes,yes)
- ( cd "$repo/objects" ) || {
- echo >&2 "-l flag seen but $repo is not local."
- exit 1
- }
+ ( cd "$repo/objects" ) ||
+ die "-l flag seen but repository '$repo' is not local."
case "$local_shared" in
no)
test -f "$repo/$sample_file" || exit
l=
- if ln "$repo/$sample_file" "$D/.git/objects/sample" 2>/dev/null
+ if ln "$repo/$sample_file" "$GIT_DIR/objects/sample" 2>/dev/null
then
l=l
fi &&
- rm -f "$D/.git/objects/sample" &&
+ rm -f "$GIT_DIR/objects/sample" &&
cd "$repo" &&
- find objects -type f -print |
- cpio -puamd$l "$D/.git/" || exit 1
+ find objects -depth -print | cpio -pumd$l "$GIT_DIR/" || exit 1
;;
yes)
- mkdir -p "$D/.git/objects/info"
- {
- test -f "$repo/objects/info/alternates" &&
- cat "$repo/objects/info/alternates";
- echo "$repo/objects"
- } >"$D/.git/objects/info/alternates"
+ mkdir -p "$GIT_DIR/objects/info"
+ echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates"
;;
esac
-
- # Make a duplicate of refs and HEAD pointer
- HEAD=
- if test -f "$repo/HEAD"
- then
- HEAD=HEAD
- fi
- tar Ccf "$repo" - refs $HEAD | tar Cxf "$D/.git" - || exit 1
+ git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
*)
case "$repo" in
rsync://*)
- rsync $quiet -avz --ignore-existing "$repo/objects/" "$D/.git/objects/" &&
- rsync $quiet -avz --ignore-existing "$repo/refs/" "$D/.git/refs/"
+ case "$depth" in
+ "") ;;
+ *) die "shallow over rsync not supported" ;;
+ esac
+ rsync $quiet -av --ignore-existing \
+ --exclude info "$repo/objects/" "$GIT_DIR/objects/" ||
+ exit
+ # Look at objects/info/alternates for rsync -- http will
+ # support it natively and git native ones will do it on the
+ # remote end. Not having that file is not a crime.
+ rsync -q "$repo/objects/info/alternates" \
+ "$GIT_DIR/TMP_ALT" 2>/dev/null ||
+ rm -f "$GIT_DIR/TMP_ALT"
+ if test -f "$GIT_DIR/TMP_ALT"
+ then
+ ( cd "$D" &&
+ . git-parse-remote &&
+ resolve_alternates "$repo" <"$GIT_DIR/TMP_ALT" ) |
+ while read alt
+ do
+ case "$alt" in 'bad alternate: '*) die "$alt";; esac
+ case "$quiet" in
+ '') echo >&2 "Getting alternate: $alt" ;;
+ esac
+ rsync $quiet -av --ignore-existing \
+ --exclude info "$alt" "$GIT_DIR/objects" || exit
+ done
+ rm -f "$GIT_DIR/TMP_ALT"
+ fi
+ git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD" || exit 1
;;
- http://*)
- clone_dumb_http "$repo" "$D"
+ https://*|http://*|ftp://*)
+ case "$depth" in
+ "") ;;
+ *) die "shallow over http or ftp not supported" ;;
+ esac
+ if test -z "@@NO_CURL@@"
+ then
+ clone_dumb_http "$repo" "$D"
+ else
+ die "http transport not supported, rebuild Git with curl support"
+ fi
;;
*)
- cd "$D" && case "$upload_pack" in
- '') git-clone-pack $quiet "$repo" ;;
- *) git-clone-pack $quiet "$upload_pack" "$repo" ;;
- esac
+ case "$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."
;;
esac
;;
esac
+test -d "$GIT_DIR/refs/reference-tmp" && rm -fr "$GIT_DIR/refs/reference-tmp"
+
+if test -f "$GIT_DIR/CLONE_HEAD"
+then
+ # Read git-fetch-pack -k output and store the remote branches.
+ if [ -n "$use_separate_remote" ]
+ then
+ branch_top="remotes/$origin"
+ else
+ branch_top="heads"
+ fi
+ tag_top="tags"
+ while read sha1 name
+ do
+ case "$name" in
+ *'^{}')
+ continue ;;
+ HEAD)
+ destname="REMOTE_HEAD" ;;
+ refs/heads/*)
+ destname="refs/$branch_top/${name#refs/heads/}" ;;
+ refs/tags/*)
+ destname="refs/$tag_top/${name#refs/tags/}" ;;
+ *)
+ continue ;;
+ esac
+ git-update-ref -m "clone: from $repo" "$destname" "$sha1" ""
+ done < "$GIT_DIR/CLONE_HEAD"
+fi
+
+cd "$D" || exit
+
+if test -z "$bare" && test -f "$GIT_DIR/REMOTE_HEAD"
+then
+ # a non-bare repository is always in separate-remote layout
+ remote_top="refs/remotes/$origin"
+ head_sha1=`cat "$GIT_DIR/REMOTE_HEAD"`
+ case "$head_sha1" in
+ 'ref: refs/'*)
+ # Uh-oh, the remote told us (http transport done against
+ # new style repository with a symref HEAD).
+ # Ideally we should skip the guesswork but for now
+ # opt for minimum change.
+ head_sha1=`expr "z$head_sha1" : 'zref: refs/heads/\(.*\)'`
+ head_sha1=`cat "$GIT_DIR/$remote_top/$head_sha1"`
+ ;;
+ esac
+
+ # The name under $remote_top the remote HEAD seems to point at.
+ head_points_at=$(
+ (
+ test -f "$GIT_DIR/$remote_top/master" && echo "master"
+ cd "$GIT_DIR/$remote_top" &&
+ find . -type f -print | sed -e 's/^\.\///'
+ ) | (
+ done=f
+ while read name
+ do
+ test t = $done && continue
+ branch_tip=`cat "$GIT_DIR/$remote_top/$name"`
+ if test "$head_sha1" = "$branch_tip"
+ then
+ echo "$name"
+ done=t
+ fi
+ done
+ )
+ )
+
+ # Write out remote.$origin config, and update our "$head_points_at".
+ case "$head_points_at" in
+ ?*)
+ # Local default branch
+ git-symbolic-ref HEAD "refs/heads/$head_points_at" &&
+
+ # Tracking branch for the primary branch at the remote.
+ origin_track="$remote_top/$head_points_at" &&
+ git-update-ref HEAD "$head_sha1" &&
+
+ # Upstream URL
+ git-config remote."$origin".url "$repo" &&
+
+ # Set up the mappings to track the remote branches.
+ git-config remote."$origin".fetch \
+ "+refs/heads/*:$remote_top/*" '^$' &&
+ rm -f "refs/remotes/$origin/HEAD"
+ git-symbolic-ref "refs/remotes/$origin/HEAD" \
+ "refs/remotes/$origin/$head_points_at" &&
+
+ git-config branch."$head_points_at".remote "$origin" &&
+ git-config branch."$head_points_at".merge "refs/heads/$head_points_at"
+ esac
+
+ case "$no_checkout" in
+ '')
+ test "z$quiet" = z -a "z$no_progress" = z && v=-v || v=
+ git-read-tree -m -u $v HEAD HEAD
+ esac
+fi
+rm -f "$GIT_DIR/CLONE_HEAD" "$GIT_DIR/REMOTE_HEAD"
+
+trap - 0
-# Update origin.
-mkdir -p "$D/.git/remotes/" &&
-rm -f "$D/.git/remotes/origin" &&
-echo >"$D/.git/remotes/origin" \
-"URL: $repo
-Pull: master:origin"