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rebase -i: rewrite the rest of init_revisions_and_shortrevisions() in C

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This rewrites the part of init_revisions_and_shortrevisions() needed by
`--complete-action` (which initialize $shortrevisions) from shell to C.

When `upstream` is empty, it means that the user launched a `rebase
--root`, and `onto` contains the ID of an empty commit.  As a range
between an empty commit and `head` is not really meaningful, `onto` is
not used to initialize `shortrevisions` in this case.

The corresponding arguments passed to `--complete-action` are then
dropped, and init_revisions_and_shortrevisions() is stripped from
git-rebase--interactive.sh

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Alban Gruin 2018-08-28 14:10:39 +02:00 committed by Junio C Hamano
parent 6ab54d17be
commit f22e4e1a3c
2 changed files with 38 additions and 29 deletions
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40
builtin/rebase--helper.c
View File

@ -10,7 +10,7 @@ static GIT_PATH_FUNC(path_squash_onto, "rebase-merge/squash-onto")
static int get_revision_ranges(const char *upstream, const char *onto,
const char **head_hash,
char **revisions)
char **revisions, char **shortrevisions)
{
const char *base_rev = upstream ? upstream : onto;
struct object_id orig_head;
@ -19,7 +19,25 @@ static int get_revision_ranges(const char *upstream, const char *onto,
return error(_("no HEAD?"));
*head_hash = find_unique_abbrev(&orig_head, GIT_MAX_HEXSZ);
*revisions = xstrfmt("%s...%s", base_rev, *head_hash);
if (revisions)
*revisions = xstrfmt("%s...%s", base_rev, *head_hash);
if (shortrevisions) {
const char *shorthead;
shorthead = find_unique_abbrev(&orig_head, DEFAULT_ABBREV);
if (upstream) {
const char *shortrev;
struct object_id rev_oid;
get_oid(base_rev, &rev_oid);
shortrev = find_unique_abbrev(&rev_oid, DEFAULT_ABBREV);
*shortrevisions = xstrfmt("%s..%s", shortrev, shorthead);
} else
*shortrevisions = xstrdup(shorthead);
}
return 0;
}
@ -116,7 +134,7 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix)
if (!upstream && squash_onto)
write_file(path_squash_onto(), "%s\n", squash_onto);
ret = get_revision_ranges(upstream, onto, &head_hash, &revisions);
ret = get_revision_ranges(upstream, onto, &head_hash, &revisions, NULL);
if (ret)
return ret;
@ -145,9 +163,19 @@ int cmd_rebase__helper(int argc, const char **argv, const char *prefix)
return !!edit_todo_list(flags);
if (command == PREPARE_BRANCH && argc == 2)
return !!prepare_branch_to_be_rebased(&opts, argv[1]);
if (command == COMPLETE_ACTION && argc == 6)
return !!complete_action(&opts, flags, argv[1], argv[2], argv[3],
argv[4], argv[5], autosquash);
if (command == COMPLETE_ACTION && argc == 3) {
char *shortrevisions = NULL;
ret = get_revision_ranges(upstream, onto, &head_hash, NULL, &shortrevisions);
if (ret)
return ret;
ret = complete_action(&opts, flags, shortrevisions, argv[1], onto,
head_hash, argv[2], autosquash);
free(shortrevisions);
return !!ret;
}
usage_with_options(builtin_rebase_helper_usage, options);
}

27
git-rebase--interactive.sh
View File

@ -60,23 +60,6 @@ init_basic_state () {
write_basic_state
}
init_revisions_and_shortrevisions () {
shorthead=$(git rev-parse --short $orig_head)
shortonto=$(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...$orig_head
shortrevisions=$shortupstream..$shorthead
else
revisions=$onto...$orig_head
shortrevisions=$shorthead
test -z "$squash_onto" ||
echo "$squash_onto" >"$state_dir"/squash-onto
fi
}
git_rebase__interactive () {
initiate_action "$action"
ret=$?
@ -87,8 +70,6 @@ git_rebase__interactive () {
git rebase--helper --prepare-branch "$switch_to" ${verbose:+--verbose}
init_basic_state
init_revisions_and_shortrevisions
git rebase--helper --make-script ${keep_empty:+--keep-empty} \
${rebase_merges:+--rebase-merges} \
${rebase_cousins:+--rebase-cousins} \
@ -97,8 +78,8 @@ git_rebase__interactive () {
${restrict_revision:+--restrict-revision ^"$restrict_revision"} >"$todo" ||
die "$(gettext "Could not generate todo list")"
exec git rebase--helper --complete-action "$shortrevisions" "$onto_name" \
"$shortonto" "$orig_head" "$cmd" $allow_empty_message \
${autosquash:+--autosquash} ${keep_empty:+--keep-empty} \
${verbose:+--verbose} ${force_rebase:+--no-ff}
exec git rebase--helper --complete-action "$onto_name" "$cmd" \
$allow_empty_message ${autosquash:+--autosquash} ${verbose:+--verbose} \
${keep_empty:+--keep-empty} ${force_rebase:+--no-ff} \
${upstream:+--upstream "$upstream"} ${onto:+--onto "$onto"}
}