Handle symlinks graciously

[git.git] / git-fetch.sh

diff --git a/git-fetch.sh b/git-fetch.sh
index 360fecd..767ca61 100755 (executable)
--- a/git-fetch.sh
+++ b/git-fetch.sh
@@ -1,13 +1,20 @@
 #!/bin/sh
 #
-. git-sh-setup || die "Not a git archive"
+
+USAGE='<fetch-options> <repository> <refspec>...'
+. git-sh-setup
 . git-parse-remote
 _x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
 _x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
 
+LF='
+'
+IFS="$LF"
+
 tags=
 append=
 force=
+verbose=
 update_head_ok=
 while case "$#" in 0) break ;; esac
 do
@@ -26,6 +33,12 @@ do
        --update-head-o|--update-head-ok)
                update_head_ok=t
                ;;
+       -v|--verbose)
+               verbose=Yes
+               ;;
+       -*)
+               usage
+               ;;
        *)
                break
                ;;
@@ -87,12 +100,12 @@ append_fetch_head () {
     then
        headc_=$(git-rev-parse --verify "$head_^0") || exit
        echo "$headc_   $not_for_merge_ $note_" >>"$GIT_DIR/FETCH_HEAD"
-       echo >&2 "* committish: $head_"
-       echo >&2 "  $note_"
+       [ "$verbose" ] && echo >&2 "* committish: $head_"
+       [ "$verbose" ] && echo >&2 "  $note_"
     else
        echo "$head_    not-for-merge   $note_" >>"$GIT_DIR/FETCH_HEAD"
-       echo >&2 "* non-commit: $head_"
-       echo >&2 "  $note_"
+       [ "$verbose" ] && echo >&2 "* non-commit: $head_"
+       [ "$verbose" ] && echo >&2 "  $note_"
     fi
     if test "$local_name_" != ""
     then
@@ -110,7 +123,12 @@ fast_forward_local () {
        # is no way to guarantee "fast-forward" anyway.
        if test -f "$GIT_DIR/$1"
        then
-               echo >&2 "* $1: updating with $3"
+               if now_=$(cat "$GIT_DIR/$1") && test "$now_" = "$2"
+               then
+                       [ "$verbose" ] && echo >&2 "* $1: same as $3"
+               else
+                       echo >&2 "* $1: updating with $3"
+               fi
        else
                echo >&2 "* $1: storing $3"
        fi
@@ -178,7 +196,7 @@ then
        if test "$#" -gt 1
        then
                # remote URL plus explicit refspecs; we need to merge them.
-               reflist="$reflist $taglist"
+               reflist="$reflist$LF$taglist"
        else
                # No explicit refspecs; fetch tags only.
                reflist=$taglist
@@ -187,7 +205,7 @@ fi
 
 for ref in $reflist
 do
-    refs="$refs $ref"
+    refs="$refs$LF$ref"
 
     # These are relative path from $GIT_DIR, typically starting at refs/
     # but may be HEAD
@@ -208,7 +226,7 @@ do
     remote_name=$(expr "$ref" : '\([^:]*\):')
     local_name=$(expr "$ref" : '[^:]*:\(.*\)')
 
-    rref="$rref $remote_name"
+    rref="$rref$LF$remote_name"
 
     # There are transports that can fetch only one head at a time...
     case "$remote" in
@@ -216,7 +234,12 @@ do
        if [ -n "$GIT_SSL_NO_VERIFY" ]; then
            curl_extra_args="-k"
        fi
-       head=$(curl -nsf $curl_extra_args "$remote/$remote_name") &&
+       remote_name_quoted=$(perl -e '
+           my $u = $ARGV[0];
+           $u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
+           print "$u";
+       ' "$remote_name")
+       head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") &&
        expr "$head" : "$_x40\$" >/dev/null ||
                die "Failed to fetch $remote_name from $remote"
        echo >&2 Fetching "$remote_name from $remote" using http
@@ -266,6 +289,7 @@ case "$remote" in
 http://* | https://* | rsync://* )
     ;; # we are already done.
 *)
+    IFS="      $LF"
     (
        git-fetch-pack "$remote" $rref || echo failed "$remote"
     ) |