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Commit | Line | Data |
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d82f33e2 | 1 | #include "cache.h" |
0b027f6c | 2 | #include "abspath.h" |
2aed0181 | 3 | #include "config.h" |
32a8f510 | 4 | #include "environment.h" |
f394e093 | 5 | #include "gettext.h" |
d82f33e2 | 6 | #include "strbuf.h" |
c7c4bdec | 7 | #include "strvec.h" |
d82f33e2 | 8 | #include "run-command.h" |
913ef360 | 9 | #include "sigchain.h" |
d82f33e2 | 10 | |
8f4b576a JN |
11 | #ifndef DEFAULT_EDITOR |
12 | #define DEFAULT_EDITOR "vi" | |
13 | #endif | |
14 | ||
a64f213d LS |
15 | int is_terminal_dumb(void) |
16 | { | |
17 | const char *terminal = getenv("TERM"); | |
18 | return !terminal || !strcmp(terminal, "dumb"); | |
19 | } | |
20 | ||
44fcb497 | 21 | const char *git_editor(void) |
d82f33e2 | 22 | { |
d33738d7 | 23 | const char *editor = getenv("GIT_EDITOR"); |
a64f213d | 24 | int terminal_is_dumb = is_terminal_dumb(); |
d82f33e2 | 25 | |
d82f33e2 SB |
26 | if (!editor && editor_program) |
27 | editor = editor_program; | |
d33738d7 | 28 | if (!editor && !terminal_is_dumb) |
d82f33e2 SB |
29 | editor = getenv("VISUAL"); |
30 | if (!editor) | |
31 | editor = getenv("EDITOR"); | |
32 | ||
d33738d7 | 33 | if (!editor && terminal_is_dumb) |
44fcb497 | 34 | return NULL; |
d82f33e2 SB |
35 | |
36 | if (!editor) | |
8f4b576a | 37 | editor = DEFAULT_EDITOR; |
d82f33e2 | 38 | |
44fcb497 JN |
39 | return editor; |
40 | } | |
41 | ||
2aed0181 | 42 | const char *git_sequence_editor(void) |
44fcb497 | 43 | { |
2aed0181 AG |
44 | const char *editor = getenv("GIT_SEQUENCE_EDITOR"); |
45 | ||
46 | if (!editor) | |
f1de981e | 47 | git_config_get_string_tmp("sequence.editor", &editor); |
2aed0181 AG |
48 | if (!editor) |
49 | editor = git_editor(); | |
44fcb497 | 50 | |
2aed0181 AG |
51 | return editor; |
52 | } | |
53 | ||
54 | static int launch_specified_editor(const char *editor, const char *path, | |
55 | struct strbuf *buffer, const char *const *env) | |
56 | { | |
44fcb497 JN |
57 | if (!editor) |
58 | return error("Terminal is dumb, but EDITOR unset"); | |
59 | ||
d82f33e2 | 60 | if (strcmp(editor, ":")) { |
3d7747e3 | 61 | struct strbuf realpath = STRBUF_INIT; |
d3180279 | 62 | struct child_process p = CHILD_PROCESS_INIT; |
1250857c | 63 | int ret, sig; |
ed9bff08 | 64 | int print_waiting_for_editor = advice_enabled(ADVICE_WAITING_FOR_EDITOR) && isatty(2); |
abfb04d0 LS |
65 | |
66 | if (print_waiting_for_editor) { | |
67 | /* | |
68 | * A dumb terminal cannot erase the line later on. Add a | |
69 | * newline to separate the hint from subsequent output. | |
70 | * | |
71 | * Make sure that our message is separated with a whitespace | |
72 | * from further cruft that may be written by the editor. | |
73 | */ | |
74 | const char term = is_terminal_dumb() ? '\n' : ' '; | |
75 | ||
76 | fprintf(stderr, | |
77 | _("hint: Waiting for your editor to close the file...%c"), | |
78 | term); | |
79 | fflush(stderr); | |
80 | } | |
d82f33e2 | 81 | |
3d7747e3 | 82 | strbuf_realpath(&realpath, path, 1); |
3d7747e3 | 83 | |
2b709893 | 84 | strvec_pushl(&p.args, editor, realpath.buf, NULL); |
c7c4bdec | 85 | if (env) |
29fda24d | 86 | strvec_pushv(&p.env, (const char **)env); |
f42ca31d | 87 | p.use_shell = 1; |
eee73d1d | 88 | p.trace2_child_class = "editor"; |
3d7747e3 AM |
89 | if (start_command(&p) < 0) { |
90 | strbuf_release(&realpath); | |
f42ca31d | 91 | return error("unable to start editor '%s'", editor); |
3d7747e3 | 92 | } |
f42ca31d | 93 | |
913ef360 PF |
94 | sigchain_push(SIGINT, SIG_IGN); |
95 | sigchain_push(SIGQUIT, SIG_IGN); | |
96 | ret = finish_command(&p); | |
3d7747e3 | 97 | strbuf_release(&realpath); |
709ca730 | 98 | sig = ret - 128; |
913ef360 PF |
99 | sigchain_pop(SIGINT); |
100 | sigchain_pop(SIGQUIT); | |
1250857c JK |
101 | if (sig == SIGINT || sig == SIGQUIT) |
102 | raise(sig); | |
913ef360 | 103 | if (ret) |
7198203a SB |
104 | return error("There was a problem with the editor '%s'.", |
105 | editor); | |
abfb04d0 LS |
106 | |
107 | if (print_waiting_for_editor && !is_terminal_dumb()) | |
108 | /* | |
cd1096b2 SG |
109 | * Erase the entire line to avoid wasting the |
110 | * vertical space. | |
abfb04d0 | 111 | */ |
cd1096b2 | 112 | term_clear_line(); |
d82f33e2 SB |
113 | } |
114 | ||
115 | if (!buffer) | |
7198203a | 116 | return 0; |
d82f33e2 | 117 | if (strbuf_read_file(buffer, path, 0) < 0) |
9f9a522c | 118 | return error_errno("could not read file '%s'", path); |
7198203a | 119 | return 0; |
d82f33e2 | 120 | } |
2aed0181 AG |
121 | |
122 | int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
123 | { | |
124 | return launch_specified_editor(git_editor(), path, buffer, env); | |
125 | } | |
126 | ||
127 | int launch_sequence_editor(const char *path, struct strbuf *buffer, | |
128 | const char *const *env) | |
129 | { | |
130 | return launch_specified_editor(git_sequence_editor(), path, buffer, env); | |
131 | } |