transport-helper: drop read/write errno checks
[git.git] / rebase-interactive.c
blob78f3263fc153079938898989822b57e5888568d6
1 #include "cache.h"
2 #include "commit.h"
3 #include "rebase-interactive.h"
4 #include "sequencer.h"
5 #include "strbuf.h"
7 void append_todo_help(unsigned edit_todo, unsigned keep_empty,
8 struct strbuf *buf)
10 const char *msg = _("\nCommands:\n"
11 "p, pick <commit> = use commit\n"
12 "r, reword <commit> = use commit, but edit the commit message\n"
13 "e, edit <commit> = use commit, but stop for amending\n"
14 "s, squash <commit> = use commit, but meld into previous commit\n"
15 "f, fixup <commit> = like \"squash\", but discard this commit's log message\n"
16 "x, exec <command> = run command (the rest of the line) using shell\n"
17 "b, break = stop here (continue rebase later with 'git rebase --continue')\n"
18 "d, drop <commit> = remove commit\n"
19 "l, label <label> = label current HEAD with a name\n"
20 "t, reset <label> = reset HEAD to a label\n"
21 "m, merge [-C <commit> | -c <commit>] <label> [# <oneline>]\n"
22 ". create a merge commit using the original merge commit's\n"
23 ". message (or the oneline, if no original merge commit was\n"
24 ". specified). Use -c <commit> to reword the commit message.\n"
25 "\n"
26 "These lines can be re-ordered; they are executed from top to bottom.\n");
28 strbuf_add_commented_lines(buf, msg, strlen(msg));
30 if (get_missing_commit_check_level() == MISSING_COMMIT_CHECK_ERROR)
31 msg = _("\nDo not remove any line. Use 'drop' "
32 "explicitly to remove a commit.\n");
33 else
34 msg = _("\nIf you remove a line here "
35 "THAT COMMIT WILL BE LOST.\n");
37 strbuf_add_commented_lines(buf, msg, strlen(msg));
39 if (edit_todo)
40 msg = _("\nYou are editing the todo file "
41 "of an ongoing interactive rebase.\n"
42 "To continue rebase after editing, run:\n"
43 " git rebase --continue\n\n");
44 else
45 msg = _("\nHowever, if you remove everything, "
46 "the rebase will be aborted.\n\n");
48 strbuf_add_commented_lines(buf, msg, strlen(msg));
50 if (!keep_empty) {
51 msg = _("Note that empty commits are commented out");
52 strbuf_add_commented_lines(buf, msg, strlen(msg));
56 int edit_todo_list(unsigned flags)
58 struct strbuf buf = STRBUF_INIT;
59 const char *todo_file = rebase_path_todo();
61 if (strbuf_read_file(&buf, todo_file, 0) < 0)
62 return error_errno(_("could not read '%s'."), todo_file);
64 strbuf_stripspace(&buf, 1);
65 if (write_message(buf.buf, buf.len, todo_file, 0)) {
66 strbuf_release(&buf);
67 return -1;
70 strbuf_release(&buf);
72 transform_todos(flags | TODO_LIST_SHORTEN_IDS);
74 if (strbuf_read_file(&buf, todo_file, 0) < 0)
75 return error_errno(_("could not read '%s'."), todo_file);
77 append_todo_help(1, 0, &buf);
78 if (write_message(buf.buf, buf.len, todo_file, 0)) {
79 strbuf_release(&buf);
80 return -1;
83 strbuf_release(&buf);
85 if (launch_sequence_editor(todo_file, NULL, NULL))
86 return -1;
88 transform_todos(flags & ~(TODO_LIST_SHORTEN_IDS));
90 return 0;