rebase: stricter check of standalone sub command
[gitweb.git] / git-rebase--interactive.sh
index 5934b97fa106d73b1b091f050272c4c9f25eb646..824f4f303d9de2cf779981464888a03cfda17a01 100755 (executable)
@@ -28,6 +28,7 @@ continue           continue rebasing process
 abort              abort rebasing process and restore original branch
 skip               skip current patch and continue rebasing process
 no-verify          override pre-rebase hook from stopping the operation
+verify             allow pre-rebase hook to run
 root               rebase all reachable commmits up to the root(s)
 autosquash         move commits that begin with squash!/fixup! under -i
 "
@@ -749,6 +750,7 @@ do
                OK_TO_SKIP_PRE_REBASE=yes
                ;;
        --verify)
+               OK_TO_SKIP_PRE_REBASE=
                ;;
        --continue)
                is_standalone "$@" || usage
@@ -864,152 +866,158 @@ first and then run 'git rebase --continue' again."
                ;;
        --)
                shift
-               test -z "$REBASE_ROOT" -a $# -ge 1 -a $# -le 2 ||
-               test ! -z "$REBASE_ROOT" -a $# -le 1 || usage
-               test -d "$DOTEST" &&
-                       die "Interactive rebase already started"
-
-               git var GIT_COMMITTER_IDENT >/dev/null ||
-                       die "You need to set your committer info first"
-
-               if test -z "$REBASE_ROOT"
-               then
-                       UPSTREAM_ARG="$1"
-                       UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
-                       test -z "$ONTO" && ONTO=$UPSTREAM
-                       shift
-               else
-                       UPSTREAM=
-                       UPSTREAM_ARG=--root
-                       test -z "$ONTO" &&
-                               die "You must specify --onto when using --root"
-               fi
-               run_pre_rebase_hook "$UPSTREAM_ARG" "$@"
-
-               comment_for_reflog start
-
-               require_clean_work_tree "rebase" "Please commit or stash them."
-
-               if test ! -z "$1"
-               then
-                       output git checkout "$1" ||
-                               die "Could not checkout $1"
-               fi
+               break
+               ;;
+       esac
+       shift
+done
 
-               HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
-               mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+test -z "$REBASE_ROOT" -a $# -ge 1 -a $# -le 2 ||
+test ! -z "$REBASE_ROOT" -a $# -le 1 || usage
+test -d "$DOTEST" &&
+       die "Interactive rebase already started"
 
-               : > "$DOTEST"/interactive || die "Could not mark as interactive"
-               git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
-                       echo "detached HEAD" > "$DOTEST"/head-name
+git var GIT_COMMITTER_IDENT >/dev/null ||
+       die "You need to set your committer info first"
 
-               echo $HEAD > "$DOTEST"/head
-               case "$REBASE_ROOT" in
-               '')
-                       rm -f "$DOTEST"/rebase-root ;;
-               *)
-                       : >"$DOTEST"/rebase-root ;;
-               esac
-               echo $ONTO > "$DOTEST"/onto
-               test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
-               test t = "$VERBOSE" && : > "$DOTEST"/verbose
-               if test t = "$PRESERVE_MERGES"
-               then
-                       if test -z "$REBASE_ROOT"
-                       then
-                               mkdir "$REWRITTEN" &&
-                               for c in $(git merge-base --all $HEAD $UPSTREAM)
-                               do
-                                       echo $ONTO > "$REWRITTEN"/$c ||
-                                               die "Could not init rewritten commits"
-                               done
-                       else
-                               mkdir "$REWRITTEN" &&
-                               echo $ONTO > "$REWRITTEN"/root ||
-                                       die "Could not init rewritten commits"
-                       fi
-                       # No cherry-pick because our first pass is to determine
-                       # parents to rewrite and skipping dropped commits would
-                       # prematurely end our probe
-                       MERGES_OPTION=
-                       first_after_upstream="$(git rev-list --reverse --first-parent $UPSTREAM..$HEAD | head -n 1)"
-               else
-                       MERGES_OPTION="--no-merges --cherry-pick"
-               fi
-
-               SHORTHEAD=$(git rev-parse --short $HEAD)
-               SHORTONTO=$(git rev-parse --short $ONTO)
-               if test -z "$REBASE_ROOT"
-                       # this is now equivalent to ! -z "$UPSTREAM"
-               then
-                       SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM)
-                       REVISIONS=$UPSTREAM...$HEAD
-                       SHORTREVISIONS=$SHORTUPSTREAM..$SHORTHEAD
-               else
-                       REVISIONS=$ONTO...$HEAD
-                       SHORTREVISIONS=$SHORTHEAD
-               fi
-               git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
-                       --abbrev=7 --reverse --left-right --topo-order \
-                       $REVISIONS | \
-                       sed -n "s/^>//p" |
-               while read -r shortsha1 rest
+if test -z "$REBASE_ROOT"
+then
+       UPSTREAM_ARG="$1"
+       UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
+       test -z "$ONTO" && ONTO=$UPSTREAM
+       shift
+else
+       UPSTREAM=
+       UPSTREAM_ARG=--root
+       test -z "$ONTO" &&
+       die "You must specify --onto when using --root"
+fi
+run_pre_rebase_hook "$UPSTREAM_ARG" "$@"
+
+comment_for_reflog start
+
+require_clean_work_tree "rebase" "Please commit or stash them."
+
+if test ! -z "$1"
+then
+       output git checkout "$1" -- ||
+               die "Could not checkout $1"
+fi
+
+HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
+mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+
+: > "$DOTEST"/interactive || die "Could not mark as interactive"
+git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null ||
+       echo "detached HEAD" > "$DOTEST"/head-name
+
+echo $HEAD > "$DOTEST"/head
+case "$REBASE_ROOT" in
+'')
+       rm -f "$DOTEST"/rebase-root ;;
+*)
+       : >"$DOTEST"/rebase-root ;;
+esac
+echo $ONTO > "$DOTEST"/onto
+test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
+test t = "$VERBOSE" && : > "$DOTEST"/verbose
+if test t = "$PRESERVE_MERGES"
+then
+       if test -z "$REBASE_ROOT"
+       then
+               mkdir "$REWRITTEN" &&
+               for c in $(git merge-base --all $HEAD $UPSTREAM)
                do
-                       if test t != "$PRESERVE_MERGES"
-                       then
-                               printf '%s\n' "pick $shortsha1 $rest" >> "$TODO"
-                       else
-                               sha1=$(git rev-parse $shortsha1)
-                               if test -z "$REBASE_ROOT"
-                               then
-                                       preserve=t
-                                       for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
-                                       do
-                                               if test -f "$REWRITTEN"/$p -a \( $p != $ONTO -o $sha1 = $first_after_upstream \)
-                                               then
-                                                       preserve=f
-                                               fi
-                                       done
-                               else
-                                       preserve=f
-                               fi
-                               if test f = "$preserve"
-                               then
-                                       touch "$REWRITTEN"/$sha1
-                                       printf '%s\n' "pick $shortsha1 $rest" >> "$TODO"
-                               fi
-                       fi
+                       echo $ONTO > "$REWRITTEN"/$c ||
+                               die "Could not init rewritten commits"
                done
-
-               # Watch for commits that been dropped by --cherry-pick
-               if test t = "$PRESERVE_MERGES"
+       else
+               mkdir "$REWRITTEN" &&
+               echo $ONTO > "$REWRITTEN"/root ||
+                       die "Could not init rewritten commits"
+       fi
+       # No cherry-pick because our first pass is to determine
+       # parents to rewrite and skipping dropped commits would
+       # prematurely end our probe
+       MERGES_OPTION=
+       first_after_upstream="$(git rev-list --reverse --first-parent $UPSTREAM..$HEAD | head -n 1)"
+else
+       MERGES_OPTION="--no-merges --cherry-pick"
+fi
+
+SHORTHEAD=$(git rev-parse --short $HEAD)
+SHORTONTO=$(git rev-parse --short $ONTO)
+if test -z "$REBASE_ROOT"
+       # this is now equivalent to ! -z "$UPSTREAM"
+then
+       SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM)
+       REVISIONS=$UPSTREAM...$HEAD
+       SHORTREVISIONS=$SHORTUPSTREAM..$SHORTHEAD
+else
+       REVISIONS=$ONTO...$HEAD
+       SHORTREVISIONS=$SHORTHEAD
+fi
+git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
+       --abbrev=7 --reverse --left-right --topo-order \
+       $REVISIONS | \
+       sed -n "s/^>//p" |
+while read -r shortsha1 rest
+do
+       if test t != "$PRESERVE_MERGES"
+       then
+               printf '%s\n' "pick $shortsha1 $rest" >> "$TODO"
+       else
+               sha1=$(git rev-parse $shortsha1)
+               if test -z "$REBASE_ROOT"
                then
-                       mkdir "$DROPPED"
-                       # Save all non-cherry-picked changes
-                       git rev-list $REVISIONS --left-right --cherry-pick | \
-                               sed -n "s/^>//p" > "$DOTEST"/not-cherry-picks
-                       # Now all commits and note which ones are missing in
-                       # not-cherry-picks and hence being dropped
-                       git rev-list $REVISIONS |
-                       while read rev
+                       preserve=t
+                       for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
                        do
-                               if test -f "$REWRITTEN"/$rev -a "$(sane_grep "$rev" "$DOTEST"/not-cherry-picks)" = ""
+                               if test -f "$REWRITTEN"/$p -a \( $p != $ONTO -o $sha1 = $first_after_upstream \)
                                then
-                                       # Use -f2 because if rev-list is telling us this commit is
-                                       # not worthwhile, we don't want to track its multiple heads,
-                                       # just the history of its first-parent for others that will
-                                       # be rebasing on top of it
-                                       git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$DROPPED"/$rev
-                                       short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev)
-                                       sane_grep -v "^[a-z][a-z]* $short" <"$TODO" > "${TODO}2" ; mv "${TODO}2" "$TODO"
-                                       rm "$REWRITTEN"/$rev
+                                       preserve=f
                                fi
                        done
+               else
+                       preserve=f
+               fi
+               if test f = "$preserve"
+               then
+                       touch "$REWRITTEN"/$sha1
+                       printf '%s\n' "pick $shortsha1 $rest" >> "$TODO"
                fi
+       fi
+done
 
-               test -s "$TODO" || echo noop >> "$TODO"
-               test -n "$AUTOSQUASH" && rearrange_squash "$TODO"
-               cat >> "$TODO" << EOF
+# Watch for commits that been dropped by --cherry-pick
+if test t = "$PRESERVE_MERGES"
+then
+       mkdir "$DROPPED"
+       # Save all non-cherry-picked changes
+       git rev-list $REVISIONS --left-right --cherry-pick | \
+               sed -n "s/^>//p" > "$DOTEST"/not-cherry-picks
+       # Now all commits and note which ones are missing in
+       # not-cherry-picks and hence being dropped
+       git rev-list $REVISIONS |
+       while read rev
+       do
+               if test -f "$REWRITTEN"/$rev -a "$(sane_grep "$rev" "$DOTEST"/not-cherry-picks)" = ""
+               then
+                       # Use -f2 because if rev-list is telling us this commit is
+                       # not worthwhile, we don't want to track its multiple heads,
+                       # just the history of its first-parent for others that will
+                       # be rebasing on top of it
+                       git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$DROPPED"/$rev
+                       short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev)
+                       sane_grep -v "^[a-z][a-z]* $short" <"$TODO" > "${TODO}2" ; mv "${TODO}2" "$TODO"
+                       rm "$REWRITTEN"/$rev
+               fi
+       done
+fi
+
+test -s "$TODO" || echo noop >> "$TODO"
+test -n "$AUTOSQUASH" && rearrange_squash "$TODO"
+cat >> "$TODO" << EOF
 
 # Rebase $SHORTREVISIONS onto $SHORTONTO
 #
@@ -1019,29 +1027,25 @@ first and then run 'git rebase --continue' again."
 #  e, edit = use commit, but stop for amending
 #  s, squash = use commit, but meld into previous commit
 #  f, fixup = like "squash", but discard this commit's log message
-#  x <cmd>, exec <cmd> = Run a shell command <cmd>, and stop if it fails
+#  x, exec = run command (the rest of the line) using shell
 #
 # If you remove a line here THAT COMMIT WILL BE LOST.
 # However, if you remove everything, the rebase will be aborted.
 #
 EOF
 
-               has_action "$TODO" ||
-                       die_abort "Nothing to do"
+has_action "$TODO" ||
+       die_abort "Nothing to do"
 
-               cp "$TODO" "$TODO".backup
-               git_editor "$TODO" ||
-                       die_abort "Could not execute editor"
+cp "$TODO" "$TODO".backup
+git_editor "$TODO" ||
+       die_abort "Could not execute editor"
 
-               has_action "$TODO" ||
-                       die_abort "Nothing to do"
+has_action "$TODO" ||
+       die_abort "Nothing to do"
 
-               test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks
+test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks
 
-               output git checkout $ONTO || die_abort "could not detach HEAD"
-               git update-ref ORIG_HEAD $HEAD
-               do_rest
-               ;;
-       esac
-       shift
-done
+output git checkout $ONTO || die_abort "could not detach HEAD"
+git update-ref ORIG_HEAD $HEAD
+do_rest