git-clone: Support changing the origin branch with -o

[git.git] / git-clone.sh

diff --git a/git-clone.sh b/git-clone.sh
index 4fdd652..bfc6c2d 100755 (executable)
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -9,7 +9,7 @@
 unset CDPATH
 
 usage() {
-       echo >&2 "* git clone [-l [-s]] [-q] [-u <upload-pack>] [-n] <repo> <dir>"
+       echo >&2 "Usage: $0 [-l [-s]] [-q] [-u <upload-pack>] [-o <name>] [-n] <repo> [<dir>]"
        exit 1
 }
 
@@ -23,7 +23,7 @@ fi
 
 http_fetch () {
        # $1 = Remote, $2 = Local
-       curl -nsf $curl_extra_args "$1" >"$2"
+       curl -nsfL $curl_extra_args "$1" >"$2"
 }
 
 clone_dumb_http () {
@@ -67,14 +67,23 @@ use_local=no
 local_shared=no
 no_checkout=
 upload_pack=
+origin=origin
 while
        case "$#,$1" in
        0,*) break ;;
        *,-n) no_checkout=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 ;;
        *,-q|*,--quiet) quiet=-q ;;
+       1,-o) usage;;
+       *,-o)
+               git-check-ref-format "$2" || {
+                   echo >&2 "'$2' is not suitable for a branch name"
+                   exit 1
+               }
+               origin="$2"; shift
+               ;;
        1,-u|1,--upload-pack) usage ;;
        *,-u|*,--upload-pack)
                shift
@@ -96,7 +105,10 @@ if base=$(get_repo_base "$repo"); then
 fi
 
 dir="$2"
-mkdir "$dir" &&
+# 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" ] && echo "$dir already exists." && usage
+mkdir -p "$dir" &&
 D=$(
        (cd "$dir" && git-init-db && pwd)
 ) &&
@@ -163,7 +175,7 @@ yes,yes)
                        rm -f "$D/.git/TMP_ALT"
                if test -f "$D/.git/TMP_ALT"
                then
-                   ( cd $D &&
+                   ( cd "$D" &&
                      . git-parse-remote &&
                      resolve_alternates "$repo" <"./.git/TMP_ALT" ) |
                    while read alt
@@ -185,13 +197,16 @@ yes,yes)
                cd "$D" && case "$upload_pack" in
                '') git-clone-pack $quiet "$repo" ;;
                *) git-clone-pack $quiet "$upload_pack" "$repo" ;;
-               esac
+               esac || {
+                       echo >&2 "clone-pack from '$repo' failed."
+                       exit 1
+               }
                ;;
        esac
        ;;
 esac
 
-cd $D || exit
+cd "$D" || exit
 
 if test -f ".git/HEAD"
 then
@@ -202,14 +217,14 @@ then
                mkdir -p .git/remotes &&
                echo >.git/remotes/origin \
                "URL: $repo
-Pull: $head_points_at:origin" &&
-               cp ".git/refs/heads/$head_points_at" .git/refs/heads/origin &&
+Pull: $head_points_at:$origin" &&
+               git-update-ref "refs/heads/$origin" $(git-rev-parse HEAD) &&
                find .git/refs/heads -type f -print |
                while read ref
                do
                        head=`expr "$ref" : '.git/refs/heads/\(.*\)'` &&
                        test "$head_points_at" = "$head" ||
-                       test "origin" = "$head" ||
+                       test "$origin" = "$head" ||
                        echo "Pull: ${head}:${head}"
                done >>.git/remotes/origin
        esac