Revert "compat: add strtok_r()"
[git/mingw.git] / editor.c
blob27bdecdaf3d99d3179737e07be971d2458408660
1 #include "cache.h"
2 #include "strbuf.h"
3 #include "run-command.h"
4 #include "sigchain.h"
6 #ifndef DEFAULT_EDITOR
7 #define DEFAULT_EDITOR "vi"
8 #endif
10 const char *git_editor(void)
12 const char *editor = getenv("GIT_EDITOR");
13 const char *terminal = getenv("TERM");
14 int terminal_is_dumb = !terminal || !strcmp(terminal, "dumb");
16 if (!editor && editor_program)
17 editor = editor_program;
18 if (!editor && !terminal_is_dumb)
19 editor = getenv("VISUAL");
20 if (!editor)
21 editor = getenv("EDITOR");
23 if (!editor && terminal_is_dumb)
24 return NULL;
26 if (!editor)
27 editor = DEFAULT_EDITOR;
29 return editor;
32 int launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
34 const char *editor = git_editor();
36 if (!editor)
37 return error("Terminal is dumb, but EDITOR unset");
39 if (strcmp(editor, ":")) {
40 const char *args[] = { editor, path, NULL };
41 struct child_process p;
42 int ret, sig;
44 memset(&p, 0, sizeof(p));
45 p.argv = args;
46 p.env = env;
47 p.use_shell = 1;
48 if (start_command(&p) < 0)
49 return error("unable to start editor '%s'", editor);
51 sigchain_push(SIGINT, SIG_IGN);
52 sigchain_push(SIGQUIT, SIG_IGN);
53 ret = finish_command(&p);
54 sig = ret - 128;
55 sigchain_pop(SIGINT);
56 sigchain_pop(SIGQUIT);
57 if (sig == SIGINT || sig == SIGQUIT)
58 raise(sig);
59 if (ret)
60 return error("There was a problem with the editor '%s'.",
61 editor);
64 if (!buffer)
65 return 0;
66 if (strbuf_read_file(buffer, path, 0) < 0)
67 return error("could not read file '%s': %s",
68 path, strerror(errno));
69 return 0;