X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-rebase.sh;h=e6b57b8ab9595be2875f328c0a8b0f2f58897793;hb=HEAD;hp=f84160d32456820765e5b4f899a2fdd0aa5bf9cd;hpb=45dcab31ee89ace3403f63381366499ce78cef42;p=git.git diff --git a/git-rebase.sh b/git-rebase.sh index f84160d3..e6b57b8a 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -3,10 +3,76 @@ # Copyright (c) 2005 Junio C Hamano. # -USAGE=' []' +USAGE='[--onto ] []' +LONG_USAGE='git-rebase replaces with a new branch of the +same name. When the --onto option is provided the new branch starts +out with a HEAD equal to , otherwise it is equal to +It then attempts to create a new commit for each commit from the original + that does not exist in the branch. + +It is possible that a merge failure will prevent this process from being +completely automatic. You will have to resolve any such merge failure +and run git rebase --continue. Another option is to bypass the commit +that caused the merge failure with git rebase --skip. To restore the +original and remove the .dotest working files, use the command +git rebase --abort instead. + +Note that if is not specified on the command line, the +currently checked out branch is used. You must be in the top +directory of your project to start (or continue) a rebase. + +Example: git-rebase master~1 topic + + A---B---C topic A'\''--B'\''--C'\'' topic + / --> / + D---E---F---G master D---E---F---G master +' . git-sh-setup -case $# in 1|2) ;; *) usage ;; esac +RESOLVEMSG=" +When you have resolved this problem run \"git rebase --continue\". +If you would prefer to skip this patch, instead run \"git rebase --skip\". +To restore the original branch and stop rebasing run \"git rebase --abort\". +" +unset newbase +while case "$#" in 0) break ;; esac +do + case "$1" in + --continue) + diff=$(git-diff-files) + case "$diff" in + ?*) echo "You must edit all merge conflicts and then" + echo "mark them as resolved using git update-index" + exit 1 + ;; + esac + git am --resolved --3way --resolvemsg="$RESOLVEMSG" + exit + ;; + --skip) + git am -3 --skip --resolvemsg="$RESOLVEMSG" + exit + ;; + --abort) + [ -d .dotest ] || die "No rebase in progress?" + git reset --hard ORIG_HEAD + rm -r .dotest + exit + ;; + --onto) + test 2 -le "$#" || usage + newbase="$2" + shift + ;; + -*) + usage + ;; + *) + break + ;; + esac + shift +done # Make sure we do not have .dotest if mkdir .dotest @@ -30,11 +96,10 @@ case "$diff" in ;; 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 +# The upstream head must be given. Make sure it is valid. +upstream_name="$1" +upstream=`git rev-parse --verify "${upstream_name}^0"` || + die "invalid upstream $upstream_name" # If a hook exists, give it a chance to interrupt if test -x "$GIT_DIR/hooks/pre-rebase" @@ -48,28 +113,45 @@ fi # If the branch to rebase is given, first switch to it. case "$#" in 2) + branch_name="$2" git-checkout "$2" || usage + ;; +*) + branch_name=`git symbolic-ref HEAD` || die "No current branch" + branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'` + ;; esac +branch=$(git-rev-parse --verify "${branch_name}^0") || exit + +# Make sure the branch to rebase onto is valid. +onto_name=${newbase-"$upstream_name"} +onto=$(git-rev-parse --verify "${onto_name}^0") || exit -mb=$(git-merge-base "$other" "$head") +# Now we are rebasing commits $upstream..$branch on top of $onto -# Check if we are already based on $other. -if test "$mb" = "$other" +# Check if we are already based on $onto, but this should be +# done only when upstream and onto are the same. +if test "$upstream" = "$onto" then - echo >&2 "Current branch `git-symbolic-ref HEAD` is up to date." - exit 0 + mb=$(git-merge-base "$onto" "$branch") + if test "$mb" = "$onto" + then + echo >&2 "Current branch $branch_name is up to date." + exit 0 + fi fi -# Rewind the head to "$other" -git-reset --hard "$other" +# Rewind the head to "$onto"; this saves our current head in ORIG_HEAD. +git-reset --hard "$onto" -# If the $other is a proper descendant of the tip of the branch, then +# If the $onto is a proper descendant of the tip of the branch, then # we just fast forwarded. -if test "$mb" = "$head" +if test "$mb" = "$onto" then - echo >&2 "Fast-forwarded $head to $other." + echo >&2 "Fast-forwarded $branch to $newbase." exit 0 fi -git-format-patch -k --stdout --full-index "$other" ORIG_HEAD | -git am --binary -3 -k +git-format-patch -k --stdout --full-index "$upstream"..ORIG_HEAD | +git am --binary -3 -k --resolvemsg="$RESOLVEMSG" +