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Commit | Line | Data |
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77f091ed | 1 | #include "git-compat-util.h" |
0b027f6c | 2 | #include "abspath.h" |
6c6ddf92 | 3 | #include "advice.h" |
2aed0181 | 4 | #include "config.h" |
4e120823 | 5 | #include "editor.h" |
32a8f510 | 6 | #include "environment.h" |
f394e093 | 7 | #include "gettext.h" |
ca4eed70 | 8 | #include "pager.h" |
d1cbe1e6 | 9 | #include "path.h" |
d82f33e2 | 10 | #include "strbuf.h" |
c7c4bdec | 11 | #include "strvec.h" |
d82f33e2 | 12 | #include "run-command.h" |
913ef360 | 13 | #include "sigchain.h" |
4e120823 | 14 | #include "wrapper.h" |
d82f33e2 | 15 | |
8f4b576a JN |
16 | #ifndef DEFAULT_EDITOR |
17 | #define DEFAULT_EDITOR "vi" | |
18 | #endif | |
19 | ||
a64f213d LS |
20 | int is_terminal_dumb(void) |
21 | { | |
22 | const char *terminal = getenv("TERM"); | |
23 | return !terminal || !strcmp(terminal, "dumb"); | |
24 | } | |
25 | ||
44fcb497 | 26 | const char *git_editor(void) |
d82f33e2 | 27 | { |
d33738d7 | 28 | const char *editor = getenv("GIT_EDITOR"); |
a64f213d | 29 | int terminal_is_dumb = is_terminal_dumb(); |
d82f33e2 | 30 | |
d82f33e2 SB |
31 | if (!editor && editor_program) |
32 | editor = editor_program; | |
d33738d7 | 33 | if (!editor && !terminal_is_dumb) |
d82f33e2 SB |
34 | editor = getenv("VISUAL"); |
35 | if (!editor) | |
36 | editor = getenv("EDITOR"); | |
37 | ||
d33738d7 | 38 | if (!editor && terminal_is_dumb) |
44fcb497 | 39 | return NULL; |
d82f33e2 SB |
40 | |
41 | if (!editor) | |
8f4b576a | 42 | editor = DEFAULT_EDITOR; |
d82f33e2 | 43 | |
44fcb497 JN |
44 | return editor; |
45 | } | |
46 | ||
2aed0181 | 47 | const char *git_sequence_editor(void) |
44fcb497 | 48 | { |
2aed0181 AG |
49 | const char *editor = getenv("GIT_SEQUENCE_EDITOR"); |
50 | ||
51 | if (!editor) | |
f1de981e | 52 | git_config_get_string_tmp("sequence.editor", &editor); |
2aed0181 AG |
53 | if (!editor) |
54 | editor = git_editor(); | |
44fcb497 | 55 | |
2aed0181 AG |
56 | return editor; |
57 | } | |
58 | ||
59 | static int launch_specified_editor(const char *editor, const char *path, | |
60 | struct strbuf *buffer, const char *const *env) | |
61 | { | |
44fcb497 JN |
62 | if (!editor) |
63 | return error("Terminal is dumb, but EDITOR unset"); | |
64 | ||
d82f33e2 | 65 | if (strcmp(editor, ":")) { |
3d7747e3 | 66 | struct strbuf realpath = STRBUF_INIT; |
d3180279 | 67 | struct child_process p = CHILD_PROCESS_INIT; |
1250857c | 68 | int ret, sig; |
ed9bff08 | 69 | int print_waiting_for_editor = advice_enabled(ADVICE_WAITING_FOR_EDITOR) && isatty(2); |
abfb04d0 LS |
70 | |
71 | if (print_waiting_for_editor) { | |
72 | /* | |
73 | * A dumb terminal cannot erase the line later on. Add a | |
74 | * newline to separate the hint from subsequent output. | |
75 | * | |
76 | * Make sure that our message is separated with a whitespace | |
77 | * from further cruft that may be written by the editor. | |
78 | */ | |
79 | const char term = is_terminal_dumb() ? '\n' : ' '; | |
80 | ||
81 | fprintf(stderr, | |
82 | _("hint: Waiting for your editor to close the file...%c"), | |
83 | term); | |
84 | fflush(stderr); | |
85 | } | |
d82f33e2 | 86 | |
3d7747e3 | 87 | strbuf_realpath(&realpath, path, 1); |
3d7747e3 | 88 | |
2b709893 | 89 | strvec_pushl(&p.args, editor, realpath.buf, NULL); |
c7c4bdec | 90 | if (env) |
29fda24d | 91 | strvec_pushv(&p.env, (const char **)env); |
f42ca31d | 92 | p.use_shell = 1; |
eee73d1d | 93 | p.trace2_child_class = "editor"; |
3d7747e3 AM |
94 | if (start_command(&p) < 0) { |
95 | strbuf_release(&realpath); | |
f42ca31d | 96 | return error("unable to start editor '%s'", editor); |
3d7747e3 | 97 | } |
f42ca31d | 98 | |
913ef360 PF |
99 | sigchain_push(SIGINT, SIG_IGN); |
100 | sigchain_push(SIGQUIT, SIG_IGN); | |
101 | ret = finish_command(&p); | |
3d7747e3 | 102 | strbuf_release(&realpath); |
709ca730 | 103 | sig = ret - 128; |
913ef360 PF |
104 | sigchain_pop(SIGINT); |
105 | sigchain_pop(SIGQUIT); | |
1250857c JK |
106 | if (sig == SIGINT || sig == SIGQUIT) |
107 | raise(sig); | |
913ef360 | 108 | if (ret) |
7198203a SB |
109 | return error("There was a problem with the editor '%s'.", |
110 | editor); | |
abfb04d0 LS |
111 | |
112 | if (print_waiting_for_editor && !is_terminal_dumb()) | |
113 | /* | |
cd1096b2 SG |
114 | * Erase the entire line to avoid wasting the |
115 | * vertical space. | |
abfb04d0 | 116 | */ |
cd1096b2 | 117 | term_clear_line(); |
d82f33e2 SB |
118 | } |
119 | ||
120 | if (!buffer) | |
7198203a | 121 | return 0; |
d82f33e2 | 122 | if (strbuf_read_file(buffer, path, 0) < 0) |
9f9a522c | 123 | return error_errno("could not read file '%s'", path); |
7198203a | 124 | return 0; |
d82f33e2 | 125 | } |
2aed0181 AG |
126 | |
127 | int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
128 | { | |
129 | return launch_specified_editor(git_editor(), path, buffer, env); | |
130 | } | |
131 | ||
132 | int launch_sequence_editor(const char *path, struct strbuf *buffer, | |
133 | const char *const *env) | |
134 | { | |
135 | return launch_specified_editor(git_sequence_editor(), path, buffer, env); | |
136 | } | |
4e120823 EN |
137 | |
138 | int strbuf_edit_interactively(struct strbuf *buffer, const char *path, | |
139 | const char *const *env) | |
140 | { | |
141 | char *path2 = NULL; | |
142 | int fd, res = 0; | |
143 | ||
144 | if (!is_absolute_path(path)) | |
145 | path = path2 = xstrdup(git_path("%s", path)); | |
146 | ||
147 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
148 | if (fd < 0) | |
149 | res = error_errno(_("could not open '%s' for writing"), path); | |
150 | else if (write_in_full(fd, buffer->buf, buffer->len) < 0) { | |
151 | res = error_errno(_("could not write to '%s'"), path); | |
152 | close(fd); | |
153 | } else if (close(fd) < 0) | |
154 | res = error_errno(_("could not close '%s'"), path); | |
155 | else { | |
156 | strbuf_reset(buffer); | |
157 | if (launch_editor(path, buffer, env) < 0) | |
158 | res = error_errno(_("could not edit '%s'"), path); | |
159 | unlink(path); | |
160 | } | |
161 | ||
162 | free(path2); | |
163 | return res; | |
164 | } |