X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-rebase.sh;h=f7b2b9401a90e5aa598daa6049ae5d33e5c5b157;hb=d1802851b0c112a065b43e3f83d631f867b7e1ce;hp=21c3d83c3ade9bfb0cdabb00928eab4606062c1a;hpb=62a4417b574ce5120882016fd7803b9bccf68a67;p=git.git

diff --git a/git-rebase.sh b/git-rebase.sh
index 21c3d83c..f7b2b940 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -4,24 +4,28 @@
 #
 
 USAGE='[--onto <newbase>] <upstream> [<branch>]'
-LONG_USAGE='If <branch> is specified, switch to that branch first.  Then,
-extract commits in the current branch that are not in <upstream>,
-and reconstruct the current on top of <upstream>, discarding the original
-development history.  If --onto <newbase> is specified, the history is
-reconstructed on top of <newbase>, instead of <upstream>.  For example,
-while on "topic" branch:
+LONG_USAGE='git-rebase applies to <upstream> (or optionally to <newbase>) commits
+from <branch> that do not appear in <upstream>. When <branch> is not
+specified it defaults to the current branch (HEAD).
+
+When git-rebase is complete, <branch> will be updated to point to the
+newly created line of commit objects, so the previous line will not be
+accessible unless there are other references to it already.
+
+Assuming the following history:
 
           A---B---C topic
          /
     D---E---F---G master
 
-	$ '"$0"' --onto master~1 master topic
+The result of the following command:
 
-would rewrite the history to look like this:
+    git-rebase --onto master~1 master topic
 
+  would be:
 
-	      A'\''--B'\''--C'\'' topic
-	     /
+              A'\''--B'\''--C'\'' topic
+             /
     D---E---F---G master
 '
 
@@ -71,7 +75,7 @@ esac
 # The upstream head must be given.  Make sure it is valid.
 upstream_name="$1"
 upstream=`git rev-parse --verify "${upstream_name}^0"` ||
-    die "invalid upsteram $upstream_name"
+    die "invalid upstream $upstream_name"
 
 # If a hook exists, give it a chance to interrupt
 if test -x "$GIT_DIR/hooks/pre-rebase"
@@ -90,7 +94,7 @@ case "$#" in
 	;;
 *)
 	branch_name=`git symbolic-ref HEAD` || die "No current branch"
-	branch_name=`expr "$branch_name" : 'refs/heads/\(.*\)'`
+	branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
 	;;
 esac
 branch=$(git-rev-parse --verify "${branch_name}^0") || exit
@@ -103,7 +107,7 @@ onto=$(git-rev-parse --verify "${onto_name}^0") || exit
 
 # Check if we are already based on $onto, but this should be
 # done only when upstream and onto are the same.
-if test "$upstream" = "onto"
+if test "$upstream" = "$onto"
 then
 	mb=$(git-merge-base "$onto" "$branch")
 	if test "$mb" = "$onto"