Update send-pack pipeline documentation.

[git.git] / git-fetch.sh

diff --git a/git-fetch.sh b/git-fetch.sh
index 7fb47f69fb89156770919c70b7ac7e6fa75e92e5..8bd11f8b60c0ffec8a67f59bc7e12e1f63adfc91 100755 (executable)
--- a/git-fetch.sh
+++ b/git-fetch.sh
@@ -28,6 +28,7 @@ update_head_ok=
 exec=
 upload_pack=
 keep=
+shallow_depth=
 while case "$#" in 0) break ;; esac
 do
        case "$1" in
@@ -60,6 +61,13 @@ do
        -k|--k|--ke|--kee|--keep)
                keep='-k -k'
                ;;
+       --depth=*)
+               shallow_depth="--depth=`expr "z$1" : 'z-[^=]*=\(.*\)'`"
+               ;;
+       --depth)
+               shift
+               shallow_depth="--depth=$1"
+               ;;
        -*)
                usage
                ;;
@@ -300,6 +308,8 @@ fetch_main () {
       # There are transports that can fetch only one head at a time...
       case "$remote" in
       http://* | https://* | ftp://*)
+         test -n "$shallow_depth" &&
+               die "shallow clone with http not supported"
          proto=`expr "$remote" : '\([^:]*\):'`
          if [ -n "$GIT_SSL_NO_VERIFY" ]; then
              curl_extra_args="-k"
@@ -326,6 +336,8 @@ fetch_main () {
          git-http-fetch -v -a "$head" "$remote/" || exit
          ;;
       rsync://*)
+         test -n "$shallow_depth" &&
+               die "shallow clone with rsync not supported"
          TMP_HEAD="$GIT_DIR/TMP_HEAD"
          rsync -L -q "$remote/$remote_name" "$TMP_HEAD" || exit 1
          head=$(git-rev-parse --verify TMP_HEAD)
@@ -373,7 +385,7 @@ fetch_main () {
       pack_lockfile=
       IFS="    $LF"
       (
-         git-fetch-pack --thin $exec $keep "$remote" $rref || echo failed "$remote"
+         git-fetch-pack --thin $exec $keep $shallow_depth "$remote" $rref || echo failed "$remote"
       ) |
       while read sha1 remote_name
       do
@@ -446,6 +458,8 @@ case "$no_tags$tags" in
        case "$taglist" in
        '') ;;
        ?*)
+               # do not deepen a shallow tree when following tags
+               shallow_depth=
                fetch_main "$taglist" || exit ;;
        esac
 esac