4 #include "rebase-interactive.h"
6 #include "commit-slab.h"
9 enum missing_commit_check_level {
10 MISSING_COMMIT_CHECK_IGNORE = 0,
11 MISSING_COMMIT_CHECK_WARN,
12 MISSING_COMMIT_CHECK_ERROR
15 static enum missing_commit_check_level get_missing_commit_check_level(void)
19 if (git_config_get_value("rebase.missingcommitscheck", &value) ||
20 !strcasecmp("ignore", value))
21 return MISSING_COMMIT_CHECK_IGNORE;
22 if (!strcasecmp("warn", value))
23 return MISSING_COMMIT_CHECK_WARN;
24 if (!strcasecmp("error", value))
25 return MISSING_COMMIT_CHECK_ERROR;
26 warning(_("unrecognized setting %s for option "
27 "rebase.missingCommitsCheck. Ignoring."), value);
28 return MISSING_COMMIT_CHECK_IGNORE;
31 void append_todo_help(unsigned keep_empty, int command_count,
32 const char *shortrevisions, const char *shortonto,
35 const char *msg = _("\nCommands:\n"
36 "p, pick <commit> = use commit\n"
37 "r, reword <commit> = use commit, but edit the commit message\n"
38 "e, edit <commit> = use commit, but stop for amending\n"
39 "s, squash <commit> = use commit, but meld into previous commit\n"
40 "f, fixup <commit> = like \"squash\", but discard this commit's log message\n"
41 "x, exec <command> = run command (the rest of the line) using shell\n"
42 "b, break = stop here (continue rebase later with 'git rebase --continue')\n"
43 "d, drop <commit> = remove commit\n"
44 "l, label <label> = label current HEAD with a name\n"
45 "t, reset <label> = reset HEAD to a label\n"
46 "m, merge [-C <commit> | -c <commit>] <label> [# <oneline>]\n"
47 ". create a merge commit using the original merge commit's\n"
48 ". message (or the oneline, if no original merge commit was\n"
49 ". specified). Use -c <commit> to reword the commit message.\n"
51 "These lines can be re-ordered; they are executed from top to bottom.\n");
52 unsigned edit_todo = !(shortrevisions && shortonto);
55 strbuf_addch(buf, '\n');
56 strbuf_commented_addf(buf, Q_("Rebase %s onto %s (%d command)",
57 "Rebase %s onto %s (%d commands)",
59 shortrevisions, shortonto, command_count);
62 strbuf_add_commented_lines(buf, msg, strlen(msg));
64 if (get_missing_commit_check_level() == MISSING_COMMIT_CHECK_ERROR)
65 msg = _("\nDo not remove any line. Use 'drop' "
66 "explicitly to remove a commit.\n");
68 msg = _("\nIf you remove a line here "
69 "THAT COMMIT WILL BE LOST.\n");
71 strbuf_add_commented_lines(buf, msg, strlen(msg));
74 msg = _("\nYou are editing the todo file "
75 "of an ongoing interactive rebase.\n"
76 "To continue rebase after editing, run:\n"
77 " git rebase --continue\n\n");
79 msg = _("\nHowever, if you remove everything, "
80 "the rebase will be aborted.\n\n");
82 strbuf_add_commented_lines(buf, msg, strlen(msg));
85 msg = _("Note that empty commits are commented out");
86 strbuf_add_commented_lines(buf, msg, strlen(msg));
90 int edit_todo_list(struct repository *r, struct todo_list *todo_list,
91 struct todo_list *new_todo, const char *shortrevisions,
92 const char *shortonto, unsigned flags)
94 const char *todo_file = rebase_path_todo();
95 unsigned initial = shortrevisions && shortonto;
97 /* If the user is editing the todo list, we first try to parse
98 * it. If there is an error, we do not return, because the user
99 * might want to fix it in the first place. */
101 todo_list_parse_insn_buffer(r, todo_list->buf.buf, todo_list);
103 if (todo_list_write_to_file(r, todo_list, todo_file, shortrevisions, shortonto,
104 -1, flags | TODO_LIST_SHORTEN_IDS | TODO_LIST_APPEND_TODO_HELP))
105 return error_errno(_("could not write '%s'"), todo_file);
107 if (initial && copy_file(rebase_path_todo_backup(), todo_file, 0666))
108 return error(_("could not copy '%s' to '%s'."), todo_file,
109 rebase_path_todo_backup());
111 if (launch_sequence_editor(todo_file, &new_todo->buf, NULL))
114 strbuf_stripspace(&new_todo->buf, 1);
115 if (initial && new_todo->buf.len == 0)
118 /* For the initial edit, the todo list gets parsed in
119 * complete_action(). */
121 return todo_list_parse_insn_buffer(r, new_todo->buf.buf, new_todo);
126 define_commit_slab(commit_seen, unsigned char);
128 * Check if the user dropped some commits by mistake
129 * Behaviour determined by rebase.missingCommitsCheck.
130 * Check if there is an unrecognized command or a
131 * bad SHA-1 in a command.
133 int todo_list_check(struct todo_list *old_todo, struct todo_list *new_todo)
135 enum missing_commit_check_level check_level = get_missing_commit_check_level();
136 struct strbuf missing = STRBUF_INIT;
138 struct commit_seen commit_seen;
140 init_commit_seen(&commit_seen);
142 if (check_level == MISSING_COMMIT_CHECK_IGNORE)
145 /* Mark the commits in git-rebase-todo as seen */
146 for (i = 0; i < new_todo->nr; i++) {
147 struct commit *commit = new_todo->items[i].commit;
149 *commit_seen_at(&commit_seen, commit) = 1;
152 /* Find commits in git-rebase-todo.backup yet unseen */
153 for (i = old_todo->nr - 1; i >= 0; i--) {
154 struct todo_item *item = old_todo->items + i;
155 struct commit *commit = item->commit;
156 if (commit && !*commit_seen_at(&commit_seen, commit)) {
157 strbuf_addf(&missing, " - %s %.*s\n",
158 find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV),
160 todo_item_get_arg(old_todo, item));
161 *commit_seen_at(&commit_seen, commit) = 1;
165 /* Warn about missing commits */
169 if (check_level == MISSING_COMMIT_CHECK_ERROR)
173 _("Warning: some commits may have been dropped accidentally.\n"
174 "Dropped commits (newer to older):\n"));
176 /* Make the list user-friendly and display */
177 fputs(missing.buf, stderr);
178 strbuf_release(&missing);
180 fprintf(stderr, _("To avoid this message, use \"drop\" to "
181 "explicitly remove a commit.\n\n"
182 "Use 'git config rebase.missingCommitsCheck' to change "
183 "the level of warnings.\n"
184 "The possible behaviours are: ignore, warn, error.\n\n"));
187 clear_commit_seen(&commit_seen);