Switch git checkout -b to use git-update-ref rather than echo and
a shell I/O redirection. This is more in line with typical GIT
commands and allows -b to be logged according to the normal ref
logging rules.
Added -l option to allow users to create the ref log at the same
time as creating a branch.
Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
Documentation/git-checkout.txt | 7 ++++++-
git-checkout.sh | 19 +++++++++++++++----
2 files changed, 21 insertions(+), 5 deletions(-)
46409624159100ad958c3168b13e384168c12713
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 0951289..0643943 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -8,7 +8,7 @@ git-checkout - Checkout and switch to a
SYNOPSIS
--------
[verse]
-'git-checkout' [-f] [-b <new_branch>] [-m] [<branch>]
+'git-checkout' [-f] [-b <new_branch> [-l]] [-m] [<branch>]
'git-checkout' [-m] [<branch>] <paths>...
DESCRIPTION
@@ -37,6 +37,11 @@ OPTIONS
-b::
Create a new branch and start it at <branch>.
+-l::
+ Create the new branch's ref log. This activates recording of
+ all changes to made the branch ref, enabling use of date
+ based sha1 expressions such as "<branchname>@{yesterday}".
+
-m::
If you have local modifications to one or more files that
are different between the current branch and the branch to
diff --git a/git-checkout.sh b/git-checkout.sh
index a11c939..360aabf 100755
--- a/git-checkout.sh
+++ b/git-checkout.sh
@@ -5,10 +5,13 @@ SUBDIRECTORY_OK=Sometimes
. git-sh-setup
old=$(git-rev-parse HEAD)
+old_name=HEAD
new=
+new_name=
force=
branch=
newbranch=
+newbranch_log=
merge=
while [ "$#" != "0" ]; do
arg="$1"
@@ -24,6 +27,9 @@ while [ "$#" != "0" ]; do
git-check-ref-format "heads/$newbranch" ||
die "git checkout: we do not like '$newbranch' as a branch name."
;;
+ "-l")
+ newbranch_log=1
+ ;;
"-f")
force=1
;;
@@ -44,6 +50,7 @@ while [ "$#" != "0" ]; do
exit 1
fi
new="$rev"
+ new_name="$arg^0"
if [ -f "$GIT_DIR/refs/heads/$arg" ]; then
branch="$arg"
fi
@@ -51,9 +58,11 @@ while [ "$#" != "0" ]; do
then
# checking out selected paths from a tree-ish.
new="$rev"
+ new_name="$arg^{tree}"
branch=
else
new=
+ new_name=
branch=
set x "$arg" "$@"
shift
@@ -114,7 +123,7 @@ then
cd "$cdup"
fi
-[ -z "$new" ] && new=$old
+[ -z "$new" ] && new=$old && new_name="$old_name"
# If we don't have an old branch that we're switching to,
# and we don't have a new branch name for the target we
@@ -187,9 +196,11 @@ # be based on them, since we re-set the
#
if [ "$?" -eq 0 ]; then
if [ "$newbranch" ]; then
- leading=`expr "refs/heads/$newbranch" : '\(.*\)/'` &&
- mkdir -p "$GIT_DIR/$leading" &&
- echo $new >"$GIT_DIR/refs/heads/$newbranch" || exit
+ if [ "$newbranch_log" ]; then
+ mkdir -p $(dirname "$GIT_DIR/logs/refs/heads/$branchname")
+ touch "$GIT_DIR/logs/refs/heads/$branchname"
+ fi
+ git-update-ref -m "checkout: Created from $new_name" "refs/heads/$newbranch" $new || exit
branch="$newbranch"
fi
[ "$branch" ] &&
--
1.3.2.g7278
-
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