| #include "cache.h" | |
| #include "strbuf.h" | |
| #include "run-command.h" | |
| #include "sigchain.h" | |
| #ifndef DEFAULT_EDITOR | |
| #define DEFAULT_EDITOR "vi" | |
| #endif | |
| const char *git_editor(void) | |
| { | |
| const char *editor = getenv("GIT_EDITOR"); | |
| const char *terminal = getenv("TERM"); | |
| int terminal_is_dumb = !terminal || !strcmp(terminal, "dumb"); | |
| if (!editor && editor_program) | |
| editor = editor_program; | |
| if (!editor && !terminal_is_dumb) | |
| editor = getenv("VISUAL"); | |
| if (!editor) | |
| editor = getenv("EDITOR"); | |
| if (!editor && terminal_is_dumb) | |
| return NULL; | |
| if (!editor) | |
| editor = DEFAULT_EDITOR; | |
| return editor; | |
| } | |
| int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
| { | |
| const char *editor = git_editor(); | |
| if (!editor) | |
| return error("Terminal is dumb, but EDITOR unset"); | |
| if (strcmp(editor, ":")) { | |
| const char *args[] = { editor, real_path(path), NULL }; | |
| struct child_process p = CHILD_PROCESS_INIT; | |
| int ret, sig; | |
| p.argv = args; | |
| p.env = env; | |
| p.use_shell = 1; | |
| if (start_command(&p) < 0) | |
| return error("unable to start editor '%s'", editor); | |
| sigchain_push(SIGINT, SIG_IGN); | |
| sigchain_push(SIGQUIT, SIG_IGN); | |
| ret = finish_command(&p); | |
| sig = ret - 128; | |
| sigchain_pop(SIGINT); | |
| sigchain_pop(SIGQUIT); | |
| if (sig == SIGINT || sig == SIGQUIT) | |
| raise(sig); | |
| if (ret) | |
| return error("There was a problem with the editor '%s'.", | |
| editor); | |
| } | |
| if (!buffer) | |
| return 0; | |
| if (strbuf_read_file(buffer, path, 0) < 0) | |
| return error_errno("could not read file '%s'", path); | |
| return 0; | |
| } |
