"-m" option added to cg-diff, cg-log and cg-mkpatch

This option takes two optional parameters, branch2 and branch1, and shows
the changes in branch2 not yet merged to branch1. Branch2 defaults to
origin and branch1 to HEAD.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

---
commit 1a9bf2d3a0478344ae4019ac0725426627c32658
tree 3e889a5c03d7df9f82d7a649e02fef2ebdbb9f75
parent fa6e9eb368e949e78c4e66217461cf624b52b0a2
author Catalin Marinas <cmarinas@pc1117.cambridge.arm.com> Sun, 15 May 2005 09:25:49 +0100
committer Catalin Marinas <cmarinas@pc1117.cambridge.arm.com> Sun, 15 May 2005 09:25:49 +0100

 cg-diff    |   19 +++++++++++++++++++
 cg-help    |    6 +++---
 cg-log     |   19 +++++++++++++++++++
 cg-mkpatch |   19 +++++++++++++++++++
 4 files changed, 60 insertions(+), 3 deletions(-)

Index: cg-diff
===================================================================
--- de641904363cd3759f132ee7c0dfaf8a2ee58388/cg-diff  (mode:100755)
+++ 3e889a5c03d7df9f82d7a649e02fef2ebdbb9f75/cg-diff  (mode:100755)
@@ -14,6 +14,9 @@
 # -p instead of one ID denotes a parent commit to the specified ID
 # (which must not be a tree, obviously).
 #
+# -m [branch2] [branch1] shows the changes in branch2 (defaulting to
+# origin) not yet merged to branch1 (defaulting to HEAD)
+#
 # Outputs a diff converting the first tree to the second one.
 
 . ${COGITO_LIB}cg-Xlib
@@ -31,6 +34,22 @@
 	parent=1
 fi
 
+if [ "$1" = "-m" ]; then
+	branch=HEAD
+	id2=origin
+	shift
+	if [ "$1" ]; then
+		id2=$1
+		shift
+	fi
+	if [ "$1" ]; then
+		branch=$1
+		shift
+	fi
+	id1=$(git-merge-base "$branch" "$id2")
+	[ "$id1" ] || die "Unable to determine the merge base"
+fi
+
 if [ "$1" = "-r" ]; then
 	shift
 	id1=$(echo "$1": | cut -d : -f 1)
Index: cg-help
===================================================================
--- de641904363cd3759f132ee7c0dfaf8a2ee58388/cg-help  (mode:100755)
+++ 3e889a5c03d7df9f82d7a649e02fef2ebdbb9f75/cg-help  (mode:100755)
@@ -26,14 +26,14 @@
 	cg-cancel
 	cg-clone	[-s] SOURCE_LOC [DESTDIR]
 	cg-commit	[-m"Commit message"]... [-e | -E] [FILE]... < log message
-	cg-diff		[-p] [-r FROM_ID[:TO_ID]] [FILE]...
+	cg-diff		[-p] [-r FROM_ID[:TO_ID]] [-m [BNAME] [BNAME]] [FILE]...
 	cg-export	DEST [TREE_ID]
 	cg-help		[COMMAND]
 	cg-init
-	cg-log		[-c] [-f] [-r FROM_ID[:TO_ID]] [FILE]...
+	cg-log		[-c] [-f] [-r FROM_ID[:TO_ID]] ] [-m [BNAME] [BNAME]] [FILE]...
 	cg-ls		[TREE_ID]
 	cg-merge	[-c] [-b BASE_ID] FROM_ID
-	cg-mkpatch	[-s] [-r FROM_ID[:TO_ID]]
+	cg-mkpatch	[-s] [-r FROM_ID[:TO_ID]]] [-m [BNAME] [BNAME]]
 	cg-patch			< patch on stdin
 	cg-pull		[BNAME]
 	cg-restore	[FILE]...
Index: cg-log
===================================================================
--- de641904363cd3759f132ee7c0dfaf8a2ee58388/cg-log  (mode:100755)
+++ 3e889a5c03d7df9f82d7a649e02fef2ebdbb9f75/cg-log  (mode:100755)
@@ -22,6 +22,9 @@
 # (HEAD by default), or id1:id2 representing an (id1;id2] range
 # of commits to show.
 #
+# -m [branch2] [branch1] shows the changes in branch2 (defaulting to
+# origin) not yet merged to branch1 (defaulting to HEAD)
+#
 # The rest of arguments are took as filenames; cg-log then displays
 # only changes in those files.
 
@@ -94,6 +97,22 @@
 
 log_start=
 log_end=
+if [ "$1" = "-m" ]; then
+	branch=HEAD
+	log_end=origin
+	shift
+	if [ "$1" ]; then
+		log_end=$1
+		shift
+	fi
+	if [ "$1" ]; then
+		branch=$1
+		shift
+	fi
+	log_start=$(git-merge-base "$branch" "$log_end")
+	[ "$log_start" ] || die "Unable to determine the merge base"
+fi
+
 if [ "$1" = "-r" ]; then
 	shift
 	log_start="$1"
Index: cg-mkpatch
===================================================================
--- de641904363cd3759f132ee7c0dfaf8a2ee58388/cg-mkpatch  (mode:100755)
+++ 3e889a5c03d7df9f82d7a649e02fef2ebdbb9f75/cg-mkpatch  (mode:100755)
@@ -9,6 +9,9 @@
 #
 # Takes an -r followed with ID defaulting to HEAD, or id1:id2, forming
 # a range (id1;id2]. (Use "id1:" to take just everything from id1 to HEAD.)
+#
+# -m [branch2] [branch1] shows the changes in branch2 (defaulting to
+# origin) not yet merged to branch1 (defaulting to HEAD)
 
 . ${COGITO_LIB}cg-Xlib
 
@@ -65,6 +68,22 @@
 
 log_start=
 log_end=
+if [ "$1" = "-m" ]; then
+	branch=HEAD
+	log_end=origin
+	shift
+	if [ "$1" ]; then
+		log_end=$1
+		shift
+	fi
+	if [ "$1" ]; then
+		branch=$1
+		shift
+	fi
+	log_start=$(git-merge-base "$branch" "$log_end")
+	[ "$log_start" ] || die "Unable to determine the merge base"
+fi
+
 if [ "$1" = "-r" ]; then
 	shift
 	log_start="$1"