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Commit | Line | Data |
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1 | #include "cache.h" | |
2 | #include "strbuf.h" | |
3 | #include "run-command.h" | |
4 | ||
5 | #ifndef DEFAULT_EDITOR | |
6 | #define DEFAULT_EDITOR "vi" | |
7 | #endif | |
8 | ||
9 | const char *git_editor(void) | |
10 | { | |
11 | const char *editor = getenv("GIT_EDITOR"); | |
12 | const char *terminal = getenv("TERM"); | |
13 | int terminal_is_dumb = !terminal || !strcmp(terminal, "dumb"); | |
14 | ||
15 | if (!editor && editor_program) | |
16 | editor = editor_program; | |
17 | if (!editor && !terminal_is_dumb) | |
18 | editor = getenv("VISUAL"); | |
19 | if (!editor) | |
20 | editor = getenv("EDITOR"); | |
21 | ||
22 | if (!editor && terminal_is_dumb) | |
23 | return NULL; | |
24 | ||
25 | if (!editor) | |
26 | editor = DEFAULT_EDITOR; | |
27 | ||
28 | return editor; | |
29 | } | |
30 | ||
31 | int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
32 | { | |
33 | const char *editor = git_editor(); | |
34 | ||
35 | if (!editor) | |
36 | return error("Terminal is dumb, but EDITOR unset"); | |
37 | ||
38 | if (strcmp(editor, ":")) { | |
39 | const char *args[] = { editor, path, NULL }; | |
40 | struct child_process p; | |
41 | ||
42 | memset(&p, 0, sizeof(p)); | |
43 | p.argv = args; | |
44 | p.env = env; | |
45 | p.use_shell = 1; | |
46 | if (start_command(&p) < 0) | |
47 | return error("unable to start editor '%s'", editor); | |
48 | ||
49 | if (finish_command(&p)) | |
50 | return error("There was a problem with the editor '%s'.", | |
51 | editor); | |
52 | } | |
53 | ||
54 | if (!buffer) | |
55 | return 0; | |
56 | if (strbuf_read_file(buffer, path, 0) < 0) | |
57 | return error("could not read file '%s': %s", | |
58 | path, strerror(errno)); | |
59 | return 0; | |
60 | } |