X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-rebase.sh;h=f84160d32456820765e5b4f899a2fdd0aa5bf9cd;hb=5b5d4d9e1b31997b3179e6a253d47b7eea03d0fa;hp=638ff0dbc01cbf87edf1af511d5caac5ee4f1d66;hpb=069b20a198f171512a1d2d2163b40f70c94f5257;p=git.git diff --git a/git-rebase.sh b/git-rebase.sh index 638ff0db..f84160d3 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -3,8 +3,11 @@ # Copyright (c) 2005 Junio C Hamano. # +USAGE=' []' . git-sh-setup +case $# in 1|2) ;; *) usage ;; esac + # Make sure we do not have .dotest if mkdir .dotest then @@ -18,31 +21,39 @@ you still have something valuable there.' exit 1 fi -# The other head is given. Make sure it is valid. -other=$(git-rev-parse --verify "$1^0") || exit - -# Make sure we have HEAD that is valid. -head=$(git-rev-parse --verify "HEAD^0") || exit - # The tree must be really really clean. git-update-index --refresh || exit diff=$(git-diff-index --cached --name-status -r HEAD) -case "$different" in +case "$diff" in ?*) echo "$diff" exit 1 ;; esac +# The other head is given. Make sure it is valid. +other=$(git-rev-parse --verify "$1^0") || usage + +# Make sure the branch to rebase is valid. +head=$(git-rev-parse --verify "${2-HEAD}^0") || exit + +# If a hook exists, give it a chance to interrupt +if test -x "$GIT_DIR/hooks/pre-rebase" +then + "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || { + echo >&2 "The pre-rebase hook refused to rebase." + exit 1 + } +fi + # If the branch to rebase is given, first switch to it. case "$#" in 2) - git-checkout "$2" || exit + git-checkout "$2" || usage esac -# If the HEAD is a proper descendant of $other, we do not even need -# to rebase. Make sure we do not do needless rebase. In such a -# case, merge-base should be the same as "$other". mb=$(git-merge-base "$other" "$head") + +# Check if we are already based on $other. if test "$mb" = "$other" then echo >&2 "Current branch `git-symbolic-ref HEAD` is up to date." @@ -51,5 +62,14 @@ fi # Rewind the head to "$other" git-reset --hard "$other" + +# If the $other is a proper descendant of the tip of the branch, then +# we just fast forwarded. +if test "$mb" = "$head" +then + echo >&2 "Fast-forwarded $head to $other." + exit 0 +fi + git-format-patch -k --stdout --full-index "$other" ORIG_HEAD | git am --binary -3 -k