sequencer: factor out parsing of todo commands
Move the code that parses todo commands into a separate function so that it can be shared with "git status" in the next commit. As we know the input is NUL terminated we do not pass a pointer to the end of the line and instead test for a blank line by looking for NUL, CR LF, or LF. We use starts_with() instead of starts_with_mem() for the same reason. This results in slightly different behavior when there a CR at the start of the line that is not followed by LF. Previously such a line was treated as a comment rather than an invalid line. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood committed
Jun 23, 2026 at 16:53 UTC
10c2678a2bfbd2a3e8d0a3623d1b71b6cc916253
2 files changed
+35
-12
sequencer.c
+27
-12
@@ -2627,6 +2627,27 @@ static int is_command(enum todo_command command, const char **bol)
2627
return 0;
2628
}
2629
2630
+bool sequencer_parse_todo_command(const char **p, enum todo_command *cmd)
2631
+{
2632
+ const char *s = *p;
2633
+
2634
+ for (int i = 0; i < TODO_COMMENT; i++)
2635
+ if (is_command(i, p)) {
2636
+ *cmd = i;
2637
+ return true;
2638
+ }
2639
+
2640
+ if (starts_with(s, comment_line_str)) {
2641
+ *cmd = TODO_COMMENT;
2642
+ return true;
2643
+ } else if (s[0] == '\n' || (s[0] == '\r' && s[1] == '\n') || !s[0]) {
2644
+ *cmd = TODO_COMMENT;
2645
+ return true;
2646
+ }
2647
+
2648
+ return false;
2649
+}
2650
+
2651
static int check_label_or_ref_arg(enum todo_command command, const char *arg)
2652
{
2653
switch (command) {
@@ -2716,30 +2737,24 @@ static int parse_insn_line(struct repository *r, struct replay_opts *opts,
2737
{
2738
struct object_id commit_oid;
2739
char *end_of_object_name;
2719
- int i, saved, status, padding;
2740
+ int saved, status, padding;
2741
2742
item->flags = 0;
2743
2744
/* left-trim */
2745
bol += strspn(bol, " \t");
2746
2726
- if (bol == eol || *bol == '\r' || starts_with_mem(bol, eol - bol, comment_line_str)) {
2727
- item->command = TODO_COMMENT;
2747
+ if (!sequencer_parse_todo_command(&bol, &item->command))
2748
+ return error(_("invalid command '%.*s'"),
2749
+ (int)strcspn(bol, " \t\r\n"), bol);
2750
+
2751
+ if (item->command == TODO_COMMENT) {
2752
item->commit = NULL;
2753
item->arg_offset = bol - buf;
2754
item->arg_len = eol - bol;
2755
return 0;
2756
}
2757
2734
- for (i = 0; i < TODO_COMMENT; i++)
2735
- if (is_command(i, &bol)) {
2736
- item->command = i;
2737
- break;
2738
- }
2739
- if (i >= TODO_COMMENT)
2740
- return error(_("invalid command '%.*s'"),
2741
- (int)strcspn(bol, " \t\r\n"), bol);
2742
-
2758
/* Eat up extra spaces/ tabs before object name */
2759
padding = strspn(bol, " \t");
2760
bol += padding;
sequencer.h
+8
@@ -262,6 +262,14 @@ int read_author_script(const char *path, char **name, char **email, char **date,
262
int write_basic_state(struct replay_opts *opts, const char *head_name,
263
struct commit *onto, const struct object_id *orig_head);
264
void sequencer_post_commit_cleanup(struct repository *r, int verbose);
265
+
266
+/*
267
+ * Try to parse the todo command pointed to by *p. On success sets cmd,
268
+ * advances p and returns true. On failure returns false, leaves p and
269
+ * cmd unchanged.
270
+ */
271
+bool sequencer_parse_todo_command(const char **p, enum todo_command *cmd);
272
+
273
int sequencer_get_last_command(struct repository* r,
274
enum replay_action *action);
275
int sequencer_determine_whence(struct repository *r, enum commit_whence *whence);