diff options
Diffstat (limited to 'git-clone.sh')
| -rwxr-xr-x | git-clone.sh | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/git-clone.sh b/git-clone.sh new file mode 100755 index 0000000000..c076292275 --- /dev/null +++ b/git-clone.sh @@ -0,0 +1,165 @@ +#!/bin/sh +# +# Copyright (c) 2005, Linus Torvalds +# Copyright (c) 2005, Junio C Hamano +# +# 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>" + exit 1 +} + +get_repo_base() { + (cd "$1" && (cd .git ; pwd)) 2> /dev/null +} + +if [ -n "$GIT_SSL_NO_VERIFY" ]; then + curl_extra_args="-k" +fi + +http_fetch () { + # $1 = Remote, $2 = Local + curl -nsf $curl_extra_args "$1" >"$2" +} + +clone_dumb_http () { + # $1 - remote, $2 - local + cd "$2" && + clone_tmp='.git/clone-tmp' && + mkdir -p "$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. +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 <"$clone_tmp/packs" + + while read sha1 refname + do + name=`expr "$refname" : 'refs/\(.*\)'` && + git-http-fetch -v -a -w "$name" "$name" "$1/" || exit 1 + done <"$clone_tmp/refs" + rm -fr "$clone_tmp" +} + +quiet= +use_local=no +local_shared=no +upload_pack= +while + case "$#,$1" in + 0,*) break ;; + *,-l|*,--l|*,--lo|*,--loc|*,--loca|*,--local) use_local=yes ;; + *,-s|*,--s|*,--sh|*,--sha|*,--shar|*,--share|*,--shared) + local_shared=yes ;; + *,-q|*,--quiet) quiet=-q ;; + 1,-u|1,--upload-pack) usage ;; + *,-u|*,--upload-pack) + shift + upload_pack="--exec=$1" ;; + *,-*) usage ;; + *) break ;; + esac +do + shift +done + +# 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 "$D" || usage + +# We do local magic only when the user tells us to. +case "$local,$use_local" in +yes,yes) + ( cd "$repo/objects" ) || { + echo >&2 "-l flag seen but $repo is not local." + exit 1 + } + + case "$local_shared" in + no) + # See if we can hardlink and drop "l" if not. + sample_file=$(cd "$repo" && \ + find objects -type f -print | sed -e 1q) + + # objects directory should not be empty since we are cloning! + test -f "$repo/$sample_file" || exit + + l= + if ln "$repo/$sample_file" "$D/.git/objects/sample" 2>/dev/null + then + l=l + fi && + rm -f "$D/.git/objects/sample" && + cd "$repo" && + find objects -type f -print | + cpio -puamd$l "$D/.git/" || exit 1 + ;; + yes) + mkdir -p "$D/.git/objects/info" + { + test -f "$repo/objects/info/alternates" && + cat "$repo/objects/info/alternates"; + echo "$repo/objects" + } >"$D/.git/objects/info/alternates" + ;; + 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 + ;; +*) + case "$repo" in + rsync://*) + rsync $quiet -avz --ignore-existing "$repo/objects/" "$D/.git/objects/" && + rsync $quiet -avz --ignore-existing "$repo/refs/" "$D/.git/refs/" + ;; + http://*) + clone_dumb_http "$repo" "$D" + ;; + *) + cd "$D" && case "$upload_pack" in + '') git-clone-pack $quiet "$repo" ;; + *) git-clone-pack $quiet "$upload_pack" "$repo" ;; + esac + ;; + esac + ;; +esac + +# Update origin. +mkdir -p "$D/.git/remotes/" && +rm -f "$D/.git/remotes/origin" && +echo >"$D/.git/remotes/origin" \ +"URL: $repo +Pull: master:origin" |