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Commit | Line | Data |
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d82f33e2 | 1 | #include "cache.h" |
2aed0181 | 2 | #include "config.h" |
d82f33e2 SB |
3 | #include "strbuf.h" |
4 | #include "run-command.h" | |
913ef360 | 5 | #include "sigchain.h" |
d82f33e2 | 6 | |
8f4b576a JN |
7 | #ifndef DEFAULT_EDITOR |
8 | #define DEFAULT_EDITOR "vi" | |
9 | #endif | |
10 | ||
a64f213d LS |
11 | int is_terminal_dumb(void) |
12 | { | |
13 | const char *terminal = getenv("TERM"); | |
14 | return !terminal || !strcmp(terminal, "dumb"); | |
15 | } | |
16 | ||
44fcb497 | 17 | const char *git_editor(void) |
d82f33e2 | 18 | { |
d33738d7 | 19 | const char *editor = getenv("GIT_EDITOR"); |
a64f213d | 20 | int terminal_is_dumb = is_terminal_dumb(); |
d82f33e2 | 21 | |
d82f33e2 SB |
22 | if (!editor && editor_program) |
23 | editor = editor_program; | |
d33738d7 | 24 | if (!editor && !terminal_is_dumb) |
d82f33e2 SB |
25 | editor = getenv("VISUAL"); |
26 | if (!editor) | |
27 | editor = getenv("EDITOR"); | |
28 | ||
d33738d7 | 29 | if (!editor && terminal_is_dumb) |
44fcb497 | 30 | return NULL; |
d82f33e2 SB |
31 | |
32 | if (!editor) | |
8f4b576a | 33 | editor = DEFAULT_EDITOR; |
d82f33e2 | 34 | |
44fcb497 JN |
35 | return editor; |
36 | } | |
37 | ||
2aed0181 | 38 | const char *git_sequence_editor(void) |
44fcb497 | 39 | { |
2aed0181 AG |
40 | const char *editor = getenv("GIT_SEQUENCE_EDITOR"); |
41 | ||
42 | if (!editor) | |
43 | git_config_get_string_const("sequence.editor", &editor); | |
44 | if (!editor) | |
45 | editor = git_editor(); | |
44fcb497 | 46 | |
2aed0181 AG |
47 | return editor; |
48 | } | |
49 | ||
50 | static int launch_specified_editor(const char *editor, const char *path, | |
51 | struct strbuf *buffer, const char *const *env) | |
52 | { | |
44fcb497 JN |
53 | if (!editor) |
54 | return error("Terminal is dumb, but EDITOR unset"); | |
55 | ||
d82f33e2 | 56 | if (strcmp(editor, ":")) { |
09c5ae5a | 57 | const char *args[] = { editor, real_path(path), NULL }; |
d3180279 | 58 | struct child_process p = CHILD_PROCESS_INIT; |
1250857c | 59 | int ret, sig; |
abfb04d0 LS |
60 | int print_waiting_for_editor = advice_waiting_for_editor && isatty(2); |
61 | ||
62 | if (print_waiting_for_editor) { | |
63 | /* | |
64 | * A dumb terminal cannot erase the line later on. Add a | |
65 | * newline to separate the hint from subsequent output. | |
66 | * | |
67 | * Make sure that our message is separated with a whitespace | |
68 | * from further cruft that may be written by the editor. | |
69 | */ | |
70 | const char term = is_terminal_dumb() ? '\n' : ' '; | |
71 | ||
72 | fprintf(stderr, | |
73 | _("hint: Waiting for your editor to close the file...%c"), | |
74 | term); | |
75 | fflush(stderr); | |
76 | } | |
d82f33e2 | 77 | |
f42ca31d JK |
78 | p.argv = args; |
79 | p.env = env; | |
80 | p.use_shell = 1; | |
81 | if (start_command(&p) < 0) | |
82 | return error("unable to start editor '%s'", editor); | |
83 | ||
913ef360 PF |
84 | sigchain_push(SIGINT, SIG_IGN); |
85 | sigchain_push(SIGQUIT, SIG_IGN); | |
86 | ret = finish_command(&p); | |
709ca730 | 87 | sig = ret - 128; |
913ef360 PF |
88 | sigchain_pop(SIGINT); |
89 | sigchain_pop(SIGQUIT); | |
1250857c JK |
90 | if (sig == SIGINT || sig == SIGQUIT) |
91 | raise(sig); | |
913ef360 | 92 | if (ret) |
7198203a SB |
93 | return error("There was a problem with the editor '%s'.", |
94 | editor); | |
abfb04d0 LS |
95 | |
96 | if (print_waiting_for_editor && !is_terminal_dumb()) | |
97 | /* | |
98 | * Go back to the beginning and erase the entire line to | |
99 | * avoid wasting the vertical space. | |
100 | */ | |
101 | fputs("\r\033[K", stderr); | |
d82f33e2 SB |
102 | } |
103 | ||
104 | if (!buffer) | |
7198203a | 105 | return 0; |
d82f33e2 | 106 | if (strbuf_read_file(buffer, path, 0) < 0) |
9f9a522c | 107 | return error_errno("could not read file '%s'", path); |
7198203a | 108 | return 0; |
d82f33e2 | 109 | } |
2aed0181 AG |
110 | |
111 | int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
112 | { | |
113 | return launch_specified_editor(git_editor(), path, buffer, env); | |
114 | } | |
115 | ||
116 | int launch_sequence_editor(const char *path, struct strbuf *buffer, | |
117 | const char *const *env) | |
118 | { | |
119 | return launch_specified_editor(git_sequence_editor(), path, buffer, env); | |
120 | } |