rebase: define options in OPTIONS_SPEC

Interactive rebase used to have its own command line processing. Since
it used the 'git rev-parse --parseopt' functionality exposed through
git-sh-setup, it had some flexibility, like matching prefixes of long
options, that non-interactive rebase didn't. When interactive rebase's
command line processing was factored out into git-rebase.sh in cf432ca
(rebase: factor out command line option processing, 2011-02-06), this
flexibility was lost. Give back that flexibility to interactive and
non-interactive by defining its options in OPTIONS_SPEC.

Also improve the usage message to contain the --continue, --skip and
--abort sub commands.

Reported-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-rebase.sh b/git-rebase.sh
index a040ab51cc68f4ee8d173eda17907447360e4a73..7a54bfc6182a567860af023cb7720680d1806c72 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -28,7 +28,39 @@ Example:       git-rebase master~1 topic
 '
 
 SUBDIRECTORY_OK=Yes
-OPTIONS_SPEC=
+OPTIONS_KEEPDASHDASH=
+OPTIONS_SPEC="\
+git rebase [-i] [options] [--onto <newbase>] [<upstream>] [<branch>]
+git rebase [-i] [options] --onto <newbase> --root [<branch>]
+git-rebase [-i] --continue | --abort | --skip
+--
+ Available options are
+v,verbose!         display a diffstat of what changed upstream
+q,quiet!           be quiet. implies --no-stat
+onto=!             rebase onto given branch instead of upstream
+p,preserve-merges! try to recreate merges instead of ignoring them
+s,strategy=!       use the given merge strategy
+no-ff!             cherry-pick all commits, even if unchanged
+m,merge!           use merging strategies to rebase
+i,interactive!     let the user edit the list of commits to rebase
+f,force-rebase!    force rebase even if branch is up to date
+X,strategy-option=! pass the argument through to the merge strategy
+stat!              display a diffstat of what changed upstream
+n,no-stat!         do not show diffstat of what changed upstream
+verify             allow pre-rebase hook to run
+rerere-autoupdate  allow rerere to update index with resolved conflicts
+root!              rebase all reachable commits up to the root(s)
+autosquash         move commits that begin with squash!/fixup! under -i
+committer-date-is-author-date! passed to 'git am'
+ignore-date!       passed to 'git am'
+whitespace=!       passed to 'git apply'
+ignore-whitespace! passed to 'git apply'
+C=!                passed to 'git apply'
+ Actions:
+continue!          continue rebasing process
+abort!             abort rebasing process and restore original branch
+skip!              skip current patch and continue rebasing process
+"
 . git-sh-setup
 set_reflog_action rebase
 require_work_tree
@@ -175,7 +207,7 @@ do
                ok_to_skip_pre_rebase=
                ;;
        --continue|--skip|--abort)
-               test $total_argc -eq 1 || usage
+               test $total_argc -eq 2 || usage
                action=${1##--}
                ;;
        --onto)
@@ -183,10 +215,10 @@ do
                onto="$2"
                shift
                ;;
-       -i|--interactive)
+       -i)
                interactive_rebase=explicit
                ;;
-       -p|--preserve-merges)
+       -p)
                preserve_merges=t
                test -z "$interactive_rebase" && interactive_rebase=implied
                ;;
@@ -196,62 +228,42 @@ do
        --no-autosquash)
                autosquash=
                ;;
-       -M|-m|--m|--me|--mer|--merg|--merge)
+       -M|-m)
                do_merge=t
                ;;
-       -X*|--strategy-option*)
-               case "$#,$1" in
-               1,-X|1,--strategy-option)
-                       usage ;;
-               *,-X|*,--strategy-option)
-                       newopt="$2"
-                       shift ;;
-               *,--strategy-option=*)
-                       newopt="$(expr " $1" : ' --strategy-option=\(.*\)')" ;;
-               *,-X*)
-                       newopt="$(expr " $1" : ' -X\(.*\)')" ;;
-               1,*)
-                       usage ;;
-               esac
-               strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--$newopt")"
+       -X)
+               shift
+               strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--$1")"
                do_merge=t
                test -z "$strategy" && strategy=recursive
                ;;
-       -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
-               --strateg=*|--strategy=*|\
-       -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
-               case "$#,$1" in
-               *,*=*)
-                       strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
-               1,*)
-                       usage ;;
-               *)
-                       strategy="$2"
-                       shift ;;
-               esac
+       -s)
+               shift
+               strategy="$1"
                do_merge=t
                ;;
-       -n|--no-stat)
+       -n)
                diffstat=
                ;;
        --stat)
                diffstat=t
                ;;
-       -v|--verbose)
+       -v)
                verbose=t
                diffstat=t
                GIT_QUIET=
                ;;
-       -q|--quiet)
+       -q)
                GIT_QUIET=t
                git_am_opt="$git_am_opt -q"
                verbose=
                diffstat=
                ;;
-       --whitespace=*)
-               git_am_opt="$git_am_opt $1"
+       --whitespace)
+               shift
+               git_am_opt="$git_am_opt --whitespace=$1"
                case "$1" in
-               --whitespace=fix|--whitespace=strip)
+               fix|strip)
                        force_rebase=t
                        ;;
                esac
@@ -263,22 +275,21 @@ do
                git_am_opt="$git_am_opt $1"
                force_rebase=t
                ;;
-       -C*)
-               git_am_opt="$git_am_opt $1"
+       -C)
+               shift
+               git_am_opt="$git_am_opt -C$1"
                ;;
        --root)
                rebase_root=t
                ;;
-       -f|--f|--fo|--for|--forc|--force|--force-r|--force-re|--force-reb|--force-reba|--force-rebas|--force-rebase|--no-ff)
+       -f|--no-ff)
                force_rebase=t
                ;;
        --rerere-autoupdate|--no-rerere-autoupdate)
                allow_rerere_autoupdate="$1"
                ;;
-       -*)
-               usage
-               ;;
-       *)
+       --)
+               shift
                break
                ;;
        esac