This refactors check_todo_list() to work on a todo_list to avoid
redundant reads and writes to the disk. The function is renamed
todo_list_check(). The parsing of the two todo lists is left to the
caller.
As rebase -p still need to check the todo list from the disk, a new
function is introduced, check_todo_list_from_file(). It reads the file
from the disk, parses it, pass the todo_list to todo_list_check(), and
writes it back to the disk.
As get_missing_commit_check_level() and the enum
missing_commit_check_level are no longer needed inside of sequencer.c,
they are moved to rebase-interactive.c, and made static again.
Signed-off-by: Alban Gruin <alban.gruin@xxxxxxxxx>
---
builtin/rebase--interactive.c | 2 +-
rebase-interactive.c | 91 ++++++++++++++++++++++++-
rebase-interactive.h | 1 +
sequencer.c | 121 +++++++---------------------------
sequencer.h | 9 +--
5 files changed, 116 insertions(+), 108 deletions(-)
diff --git a/builtin/rebase--interactive.c b/builtin/rebase--interactive.c
index 0898eb4c59..df19ccaeb9 100644
--- a/builtin/rebase--interactive.c
+++ b/builtin/rebase--interactive.c
@@ -256,7 +256,7 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
ret = transform_todo_file(the_repository, flags);
break;
case CHECK_TODO_LIST:
- ret = check_todo_list(the_repository);
+ ret = check_todo_list_from_file(the_repository);
break;
case REARRANGE_SQUASH:
ret = rearrange_squash(the_repository);
diff --git a/rebase-interactive.c b/rebase-interactive.c
index 842fa07e7e..6157247e1f 100644
--- a/rebase-interactive.c
+++ b/rebase-interactive.c
@@ -1,8 +1,32 @@
#include "cache.h"
#include "commit.h"
-#include "rebase-interactive.h"
#include "sequencer.h"
+#include "rebase-interactive.h"
#include "strbuf.h"
+#include "commit-slab.h"
+#include "config.h"
+
+enum missing_commit_check_level {
+ MISSING_COMMIT_CHECK_IGNORE = 0,
+ MISSING_COMMIT_CHECK_WARN,
+ MISSING_COMMIT_CHECK_ERROR
+};
+
+static enum missing_commit_check_level get_missing_commit_check_level(void)
+{
+ const char *value;
+
+ if (git_config_get_value("rebase.missingcommitscheck", &value) ||
+ !strcasecmp("ignore", value))
+ return MISSING_COMMIT_CHECK_IGNORE;
+ if (!strcasecmp("warn", value))
+ return MISSING_COMMIT_CHECK_WARN;
+ if (!strcasecmp("error", value))
+ return MISSING_COMMIT_CHECK_ERROR;
+ warning(_("unrecognized setting %s for option "
+ "rebase.missingCommitsCheck. Ignoring."), value);
+ return MISSING_COMMIT_CHECK_IGNORE;
+}
void append_todo_help(unsigned edit_todo, unsigned keep_empty,
struct strbuf *buf)
@@ -89,3 +113,68 @@ int edit_todo_list(struct repository *r, unsigned flags)
return 0;
}
+
+define_commit_slab(commit_seen, unsigned char);
+/*
+ * Check if the user dropped some commits by mistake
+ * Behaviour determined by rebase.missingCommitsCheck.
+ * Check if there is an unrecognized command or a
+ * bad SHA-1 in a command.
+ */
+int todo_list_check(struct todo_list *old_todo, struct todo_list *new_todo)
+{
+ enum missing_commit_check_level check_level = get_missing_commit_check_level();
+ struct strbuf missing = STRBUF_INIT;
+ int res = 0, i;
+ struct commit_seen commit_seen;
+
+ init_commit_seen(&commit_seen);
+
+ if (check_level == MISSING_COMMIT_CHECK_IGNORE)
+ goto leave_check;
+
+ /* Mark the commits in git-rebase-todo as seen */
+ for (i = 0; i < new_todo->nr; i++) {
+ struct commit *commit = new_todo->items[i].commit;
+ if (commit)
+ *commit_seen_at(&commit_seen, commit) = 1;
+ }
+
+ /* Find commits in git-rebase-todo.backup yet unseen */
+ for (i = old_todo->nr - 1; i >= 0; i--) {
+ struct todo_item *item = old_todo->items + i;
+ struct commit *commit = item->commit;
+ if (commit && !*commit_seen_at(&commit_seen, commit)) {
+ strbuf_addf(&missing, " - %s %.*s\n",
+ find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV),
+ item->arg_len,
+ old_todo->buf.buf + item->arg_offset);
+ *commit_seen_at(&commit_seen, commit) = 1;
+ }
+ }
+
+ /* Warn about missing commits */
+ if (!missing.len)
+ goto leave_check;
+
+ if (check_level == MISSING_COMMIT_CHECK_ERROR)
+ res = 1;
+
+ fprintf(stderr,
+ _("Warning: some commits may have been dropped accidentally.\n"
+ "Dropped commits (newer to older):\n"));
+
+ /* Make the list user-friendly and display */
+ fputs(missing.buf, stderr);
+ strbuf_release(&missing);
+
+ fprintf(stderr, _("To avoid this message, use \"drop\" to "
+ "explicitly remove a commit.\n\n"
+ "Use 'git config rebase.missingCommitsCheck' to change "
+ "the level of warnings.\n"
+ "The possible behaviours are: ignore, warn, error.\n\n"));
+
+leave_check:
+ clear_commit_seen(&commit_seen);
+ return res;
+}
diff --git a/rebase-interactive.h b/rebase-interactive.h
index 17b6c9f6d0..dd0d717bc1 100644
--- a/rebase-interactive.h
+++ b/rebase-interactive.h
@@ -7,5 +7,6 @@ struct repository;
void append_todo_help(unsigned edit_todo, unsigned keep_empty,
struct strbuf *buf);
int edit_todo_list(struct repository *r, unsigned flags);
+int todo_list_check(struct todo_list *old_todo, struct todo_list *new_todo);
#endif
diff --git a/sequencer.c b/sequencer.c
index b932ca34f2..347a1a701f 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -4599,112 +4599,37 @@ int transform_todo_file(struct repository *r, unsigned flags)
return 0;
}
-enum missing_commit_check_level get_missing_commit_check_level(void)
-{
- const char *value;
-
- if (git_config_get_value("rebase.missingcommitscheck", &value) ||
- !strcasecmp("ignore", value))
- return MISSING_COMMIT_CHECK_IGNORE;
- if (!strcasecmp("warn", value))
- return MISSING_COMMIT_CHECK_WARN;
- if (!strcasecmp("error", value))
- return MISSING_COMMIT_CHECK_ERROR;
- warning(_("unrecognized setting %s for option "
- "rebase.missingCommitsCheck. Ignoring."), value);
- return MISSING_COMMIT_CHECK_IGNORE;
-}
+static const char edit_todo_list_advice[] =
+N_("You can fix this with 'git rebase --edit-todo' "
+"and then run 'git rebase --continue'.\n"
+"Or you can abort the rebase with 'git rebase"
+" --abort'.\n");
-define_commit_slab(commit_seen, unsigned char);
-/*
- * Check if the user dropped some commits by mistake
- * Behaviour determined by rebase.missingCommitsCheck.
- * Check if there is an unrecognized command or a
- * bad SHA-1 in a command.
- */
-int check_todo_list(struct repository *r)
+int check_todo_list_from_file(struct repository *r)
{
- enum missing_commit_check_level check_level = get_missing_commit_check_level();
- struct strbuf todo_file = STRBUF_INIT;
- struct todo_list todo_list = TODO_LIST_INIT;
- struct strbuf missing = STRBUF_INIT;
- int advise_to_edit_todo = 0, res = 0, i;
- struct commit_seen commit_seen;
-
- init_commit_seen(&commit_seen);
+ struct todo_list old_todo = TODO_LIST_INIT, new_todo = TODO_LIST_INIT;
+ int res = 0;
- strbuf_addstr(&todo_file, rebase_path_todo());
- if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) {
+ if (strbuf_read_file_or_whine(&new_todo.buf, rebase_path_todo()) < 0) {
res = -1;
- goto leave_check;
- }
- advise_to_edit_todo = res =
- todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list);
-
- if (res || check_level == MISSING_COMMIT_CHECK_IGNORE)
- goto leave_check;
-
- /* Mark the commits in git-rebase-todo as seen */
- for (i = 0; i < todo_list.nr; i++) {
- struct commit *commit = todo_list.items[i].commit;
- if (commit)
- *commit_seen_at(&commit_seen, commit) = 1;
+ goto out;
}
- todo_list_release(&todo_list);
- strbuf_addstr(&todo_file, ".backup");
- if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) {
+ if (strbuf_read_file_or_whine(&old_todo.buf, rebase_path_todo_backup()) < 0) {
res = -1;
- goto leave_check;
- }
- strbuf_release(&todo_file);
- res = !!todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list);
-
- /* Find commits in git-rebase-todo.backup yet unseen */
- for (i = todo_list.nr - 1; i >= 0; i--) {
- struct todo_item *item = todo_list.items + i;
- struct commit *commit = item->commit;
- if (commit && !*commit_seen_at(&commit_seen, commit)) {
- strbuf_addf(&missing, " - %s %.*s\n",
- short_commit_name(commit),
- item->arg_len,
- todo_list.buf.buf + item->arg_offset);
- *commit_seen_at(&commit_seen, commit) = 1;
- }
+ goto out;
}
- /* Warn about missing commits */
- if (!missing.len)
- goto leave_check;
-
- if (check_level == MISSING_COMMIT_CHECK_ERROR)
- advise_to_edit_todo = res = 1;
-
- fprintf(stderr,
- _("Warning: some commits may have been dropped accidentally.\n"
- "Dropped commits (newer to older):\n"));
-
- /* Make the list user-friendly and display */
- fputs(missing.buf, stderr);
- strbuf_release(&missing);
-
- fprintf(stderr, _("To avoid this message, use \"drop\" to "
- "explicitly remove a commit.\n\n"
- "Use 'git config rebase.missingCommitsCheck' to change "
- "the level of warnings.\n"
- "The possible behaviours are: ignore, warn, error.\n\n"));
-
-leave_check:
- clear_commit_seen(&commit_seen);
- strbuf_release(&todo_file);
- todo_list_release(&todo_list);
-
- if (advise_to_edit_todo)
- fprintf(stderr,
- _("You can fix this with 'git rebase --edit-todo' "
- "and then run 'git rebase --continue'.\n"
- "Or you can abort the rebase with 'git rebase"
- " --abort'.\n"));
+ res = todo_list_parse_insn_buffer(r, old_todo.buf.buf, &old_todo);
+ if (!res)
+ res = todo_list_parse_insn_buffer(r, new_todo.buf.buf, &new_todo);
+ if (!res)
+ res = todo_list_check(&old_todo, &new_todo);
+ if (res)
+ fprintf(stderr, _(edit_todo_list_advice));
+out:
+ todo_list_release(&old_todo);
+ todo_list_release(&new_todo);
return res;
}
@@ -4882,7 +4807,7 @@ int complete_action(struct repository *r, struct replay_opts *opts, unsigned fla
todo_list_release(&todo_list);
- if (check_todo_list(r)) {
+ if (check_todo_list_from_file(r)) {
checkout_onto(opts, onto_name, onto, orig_head);
return -1;
}
diff --git a/sequencer.h b/sequencer.h
index 4643fb3b69..07a8418b0d 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -64,12 +64,6 @@ struct replay_opts {
};
#define REPLAY_OPTS_INIT { .action = -1, .current_fixups = STRBUF_INIT }
-enum missing_commit_check_level {
- MISSING_COMMIT_CHECK_IGNORE = 0,
- MISSING_COMMIT_CHECK_WARN,
- MISSING_COMMIT_CHECK_ERROR
-};
-
int write_message(const void *buf, size_t len, const char *filename,
int append_eol);
@@ -152,8 +146,7 @@ int sequencer_make_script(struct repository *r, FILE *out, int argc,
int sequencer_add_exec_commands(struct repository *r, const char *command);
int transform_todo_file(struct repository *r, unsigned flags);
-enum missing_commit_check_level get_missing_commit_check_level(void);
-int check_todo_list(struct repository *r);
+int check_todo_list_from_file(struct repository *r);
int complete_action(struct repository *r, struct replay_opts *opts, unsigned flags,
const char *shortrevisions, const char *onto_name,
const char *onto, const char *orig_head, const char *cmd,
--
2.20.1
