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Commit | Line | Data |
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d82f33e2 SB |
1 | #include "cache.h" |
2 | #include "strbuf.h" | |
3 | #include "run-command.h" | |
913ef360 | 4 | #include "sigchain.h" |
d82f33e2 | 5 | |
8f4b576a JN |
6 | #ifndef DEFAULT_EDITOR |
7 | #define DEFAULT_EDITOR "vi" | |
8 | #endif | |
9 | ||
a64f213d LS |
10 | int is_terminal_dumb(void) |
11 | { | |
12 | const char *terminal = getenv("TERM"); | |
13 | return !terminal || !strcmp(terminal, "dumb"); | |
14 | } | |
15 | ||
44fcb497 | 16 | const char *git_editor(void) |
d82f33e2 | 17 | { |
d33738d7 | 18 | const char *editor = getenv("GIT_EDITOR"); |
a64f213d | 19 | int terminal_is_dumb = is_terminal_dumb(); |
d82f33e2 | 20 | |
d82f33e2 SB |
21 | if (!editor && editor_program) |
22 | editor = editor_program; | |
d33738d7 | 23 | if (!editor && !terminal_is_dumb) |
d82f33e2 SB |
24 | editor = getenv("VISUAL"); |
25 | if (!editor) | |
26 | editor = getenv("EDITOR"); | |
27 | ||
d33738d7 | 28 | if (!editor && terminal_is_dumb) |
44fcb497 | 29 | return NULL; |
d82f33e2 SB |
30 | |
31 | if (!editor) | |
8f4b576a | 32 | editor = DEFAULT_EDITOR; |
d82f33e2 | 33 | |
44fcb497 JN |
34 | return editor; |
35 | } | |
36 | ||
37 | int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
38 | { | |
39 | const char *editor = git_editor(); | |
40 | ||
41 | if (!editor) | |
42 | return error("Terminal is dumb, but EDITOR unset"); | |
43 | ||
d82f33e2 | 44 | if (strcmp(editor, ":")) { |
09c5ae5a | 45 | const char *args[] = { editor, real_path(path), NULL }; |
d3180279 | 46 | struct child_process p = CHILD_PROCESS_INIT; |
1250857c | 47 | int ret, sig; |
d82f33e2 | 48 | |
f42ca31d JK |
49 | p.argv = args; |
50 | p.env = env; | |
51 | p.use_shell = 1; | |
52 | if (start_command(&p) < 0) | |
53 | return error("unable to start editor '%s'", editor); | |
54 | ||
913ef360 PF |
55 | sigchain_push(SIGINT, SIG_IGN); |
56 | sigchain_push(SIGQUIT, SIG_IGN); | |
57 | ret = finish_command(&p); | |
709ca730 | 58 | sig = ret - 128; |
913ef360 PF |
59 | sigchain_pop(SIGINT); |
60 | sigchain_pop(SIGQUIT); | |
1250857c JK |
61 | if (sig == SIGINT || sig == SIGQUIT) |
62 | raise(sig); | |
913ef360 | 63 | if (ret) |
7198203a SB |
64 | return error("There was a problem with the editor '%s'.", |
65 | editor); | |
d82f33e2 SB |
66 | } |
67 | ||
68 | if (!buffer) | |
7198203a | 69 | return 0; |
d82f33e2 | 70 | if (strbuf_read_file(buffer, path, 0) < 0) |
9f9a522c | 71 | return error_errno("could not read file '%s'", path); |
7198203a | 72 | return 0; |
d82f33e2 | 73 | } |