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-rw-r--r--sequencer.c99
1 files changed, 66 insertions, 33 deletions
diff --git a/sequencer.c b/sequencer.c
index 84bf598c3e..00cefd129e 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -30,6 +30,7 @@
#include "oidset.h"
#include "commit-slab.h"
#include "alias.h"
+#include "commit-reach.h"
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
@@ -225,13 +226,16 @@ static const char *get_todo_path(const struct replay_opts *opts)
* Returns 3 when sob exists within conforming footer as last entry
*/
static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
- int ignore_footer)
+ size_t ignore_footer)
{
+ struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT;
struct trailer_info info;
- int i;
+ size_t i;
int found_sob = 0, found_sob_last = 0;
- trailer_info_get(&info, sb->buf);
+ opts.no_divider = 1;
+
+ trailer_info_get(&info, sb->buf, &opts);
if (info.trailer_start == info.trailer_end)
return 0;
@@ -610,7 +614,7 @@ static int is_index_unchanged(void)
if (!(cache_tree_oid = get_cache_tree_oid()))
return -1;
- return !oidcmp(cache_tree_oid, get_commit_tree_oid(head_commit));
+ return oideq(cache_tree_oid, get_commit_tree_oid(head_commit));
}
static int write_author_script(const char *message)
@@ -639,7 +643,7 @@ missing_author:
else if (*message != '\'')
strbuf_addch(&buf, *(message++));
else
- strbuf_addf(&buf, "'\\\\%c'", *(message++));
+ strbuf_addf(&buf, "'\\%c'", *(message++));
strbuf_addstr(&buf, "'\nGIT_AUTHOR_EMAIL='");
while (*message && *message != '\n' && *message != '\r')
if (skip_prefix(message, "> ", &message))
@@ -647,19 +651,37 @@ missing_author:
else if (*message != '\'')
strbuf_addch(&buf, *(message++));
else
- strbuf_addf(&buf, "'\\\\%c'", *(message++));
+ strbuf_addf(&buf, "'\\%c'", *(message++));
strbuf_addstr(&buf, "'\nGIT_AUTHOR_DATE='@");
while (*message && *message != '\n' && *message != '\r')
if (*message != '\'')
strbuf_addch(&buf, *(message++));
else
- strbuf_addf(&buf, "'\\\\%c'", *(message++));
+ strbuf_addf(&buf, "'\\%c'", *(message++));
strbuf_addch(&buf, '\'');
res = write_message(buf.buf, buf.len, rebase_path_author_script(), 1);
strbuf_release(&buf);
return res;
}
+
+/*
+ * write_author_script() used to fail to terminate the last line with a "'" and
+ * also escaped "'" incorrectly as "'\\\\''" rather than "'\\''". We check for
+ * the terminating "'" on the last line to see how "'" has been escaped in case
+ * git was upgraded while rebase was stopped.
+ */
+static int quoting_is_broken(const char *s, size_t n)
+{
+ /* Skip any empty lines in case the file was hand edited */
+ while (n > 0 && s[--n] == '\n')
+ ; /* empty */
+ if (n > 0 && s[n] != '\'')
+ return 1;
+
+ return 0;
+}
+
/*
* Read a list of environment variable assignments (such as the author-script
* file) into an environment block. Returns -1 on error, 0 otherwise.
@@ -667,14 +689,18 @@ missing_author:
static int read_env_script(struct argv_array *env)
{
struct strbuf script = STRBUF_INIT;
- int i, count = 0;
- char *p, *p2;
+ int i, count = 0, sq_bug;
+ const char *p2;
+ char *p;
if (strbuf_read_file(&script, rebase_path_author_script(), 256) <= 0)
return -1;
-
+ /* write_author_script() used to quote incorrectly */
+ sq_bug = quoting_is_broken(script.buf, script.len);
for (p = script.buf; *p; p++)
- if (skip_prefix(p, "'\\\\''", (const char **)&p2))
+ if (sq_bug && skip_prefix(p, "'\\\\''", &p2))
+ strbuf_splice(&script, p - script.buf, p2 - p, "'", 1);
+ else if (skip_prefix(p, "'\\''", &p2))
strbuf_splice(&script, p - script.buf, p2 - p, "'", 1);
else if (*p == '\'')
strbuf_splice(&script, p-- - script.buf, 1, "", 0);
@@ -798,11 +824,18 @@ static int run_git_commit(const char *defmsg, struct replay_opts *opts,
if ((flags & CREATE_ROOT_COMMIT) && !(flags & AMEND_MSG)) {
struct strbuf msg = STRBUF_INIT, script = STRBUF_INIT;
- const char *author = is_rebase_i(opts) ?
- read_author_ident(&script) : NULL;
+ const char *author = NULL;
struct object_id root_commit, *cache_tree_oid;
int res = 0;
+ if (is_rebase_i(opts)) {
+ author = read_author_ident(&script);
+ if (!author) {
+ strbuf_release(&script);
+ return -1;
+ }
+ }
+
if (!defmsg)
BUG("root commit without message");
@@ -1188,7 +1221,7 @@ static int parse_head(struct commit **head)
current_head = lookup_commit_reference(the_repository, &oid);
if (!current_head)
return error(_("could not parse HEAD"));
- if (oidcmp(&oid, &current_head->object.oid)) {
+ if (!oideq(&oid, &current_head->object.oid)) {
warning(_("HEAD %s is not a commit!"),
oid_to_hex(&oid));
}
@@ -1258,9 +1291,9 @@ static int try_to_commit(struct strbuf *msg, const char *author,
goto out;
}
- if (!(flags & ALLOW_EMPTY) && !oidcmp(current_head ?
- get_commit_tree_oid(current_head) :
- the_hash_algo->empty_tree, &tree)) {
+ if (!(flags & ALLOW_EMPTY) && oideq(current_head ?
+ get_commit_tree_oid(current_head) :
+ the_hash_algo->empty_tree, &tree)) {
res = 1; /* run 'git commit' to display error message */
goto out;
}
@@ -1365,7 +1398,7 @@ static int is_original_commit_empty(struct commit *commit)
ptree_oid = the_hash_algo->empty_tree; /* commit is root */
}
- return !oidcmp(ptree_oid, get_commit_tree_oid(commit));
+ return oideq(ptree_oid, get_commit_tree_oid(commit));
}
/*
@@ -1645,7 +1678,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
unborn = get_oid("HEAD", &head);
/* Do we want to generate a root commit? */
if (is_pick_or_similar(command) && opts->have_squash_onto &&
- !oidcmp(&head, &opts->squash_onto)) {
+ oideq(&head, &opts->squash_onto)) {
if (is_fixup(command))
return error(_("cannot fixup root commit"));
flags |= CREATE_ROOT_COMMIT;
@@ -1688,7 +1721,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
oid_to_hex(&commit->object.oid));
if (opts->allow_ff && !is_fixup(command) &&
- ((parent && !oidcmp(&parent->object.oid, &head)) ||
+ ((parent && oideq(&parent->object.oid, &head)) ||
(!parent && unborn))) {
if (is_rebase_i(opts))
write_author_script(msg.message);
@@ -2393,7 +2426,7 @@ static int rollback_is_safe(void)
if (get_oid("HEAD", &actual_head))
oidclr(&actual_head);
- return !oidcmp(&actual_head, &expected_head);
+ return oideq(&actual_head, &expected_head);
}
static int reset_for_rollback(const struct object_id *oid)
@@ -2954,7 +2987,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
}
if (opts->have_squash_onto &&
- !oidcmp(&head_commit->object.oid, &opts->squash_onto)) {
+ oideq(&head_commit->object.oid, &opts->squash_onto)) {
/*
* When the user tells us to "merge" something into a
* "[new root]", let's simply fast-forward to the merge head.
@@ -3023,8 +3056,8 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
* commit, we cannot fast-forward.
*/
can_fast_forward = opts->allow_ff && commit && commit->parents &&
- !oidcmp(&commit->parents->item->object.oid,
- &head_commit->object.oid);
+ oideq(&commit->parents->item->object.oid,
+ &head_commit->object.oid);
/*
* If any merge head is different from the original one, we cannot
@@ -3034,7 +3067,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
struct commit_list *p = commit->parents->next;
for (j = to_merge; j && p; j = j->next, p = p->next)
- if (oidcmp(&j->item->object.oid,
+ if (!oideq(&j->item->object.oid,
&p->item->object.oid)) {
can_fast_forward = 0;
break;
@@ -3102,8 +3135,8 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
write_message("no-ff", 5, git_path_merge_mode(the_repository), 0);
bases = get_merge_bases(head_commit, merge_commit);
- if (bases && !oidcmp(&merge_commit->object.oid,
- &bases->item->object.oid)) {
+ if (bases && oideq(&merge_commit->object.oid,
+ &bases->item->object.oid)) {
ret = 0;
/* skip merging an ancestor of HEAD */
goto leave_merge;
@@ -3349,9 +3382,9 @@ static int pick_commits(struct todo_list *todo_list, struct replay_opts *opts)
*/
if (item->command == TODO_REWORD &&
!get_oid("HEAD", &oid) &&
- (!oidcmp(&item->commit->object.oid, &oid) ||
+ (oideq(&item->commit->object.oid, &oid) ||
(opts->have_squash_onto &&
- !oidcmp(&opts->squash_onto, &oid))))
+ oideq(&opts->squash_onto, &oid))))
to_amend = 1;
return res | error_with_patch(item->commit,
@@ -3566,7 +3599,7 @@ static int commit_staged_changes(struct replay_opts *opts,
if (get_oid_hex(rev.buf, &to_amend))
return error(_("invalid contents: '%s'"),
rebase_path_amend());
- if (!is_clean && oidcmp(&head, &to_amend))
+ if (!is_clean && !oideq(&head, &to_amend))
return error(_("\nYou have uncommitted changes in your "
"working tree. Please, commit them\n"
"first and then run 'git rebase "
@@ -3578,7 +3611,7 @@ static int commit_staged_changes(struct replay_opts *opts,
* the commit message and if there was a squash, let the user
* edit it.
*/
- if (is_clean && !oidcmp(&head, &to_amend) &&
+ if (is_clean && oideq(&head, &to_amend) &&
opts->current_fixup_count > 0 &&
file_exists(rebase_path_stopped_sha())) {
const char *p = opts->current_fixups.buf;
@@ -3799,7 +3832,7 @@ int sequencer_pick_revisions(struct replay_opts *opts)
return res;
}
-void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag)
+void append_signoff(struct strbuf *msgbuf, size_t ignore_footer, unsigned flag)
{
unsigned no_dup_sob = flag & APPEND_SIGNOFF_DEDUP;
struct strbuf sob = STRBUF_INIT;
@@ -4545,7 +4578,7 @@ int skip_unnecessary_picks(void)
if (item->commit->parents->next)
break; /* merge commit */
parent_oid = &item->commit->parents->item->object.oid;
- if (hashcmp(parent_oid->hash, oid->hash))
+ if (!oideq(parent_oid, oid))
break;
oid = &item->commit->object.oid;
}