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| #include "cache.h" | |
| #include "config.h" | |
| #include "strbuf.h" | |
| #include "strvec.h" | |
| #include "run-command.h" | |
| #include "sigchain.h" | |
| #ifndef DEFAULT_EDITOR | |
| #define DEFAULT_EDITOR "vi" | |
| #endif | |
| int is_terminal_dumb(void) | |
| { | |
| const char *terminal = getenv("TERM"); | |
| return !terminal || !strcmp(terminal, "dumb"); | |
| } | |
| const char *git_editor(void) | |
| { | |
| const char *editor = getenv("GIT_EDITOR"); | |
| int terminal_is_dumb = is_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; | |
| } | |
| const char *git_sequence_editor(void) | |
| { | |
| const char *editor = getenv("GIT_SEQUENCE_EDITOR"); | |
| if (!editor) | |
| git_config_get_string_tmp("sequence.editor", &editor); | |
| if (!editor) | |
| editor = git_editor(); | |
| return editor; | |
| } | |
| static int launch_specified_editor(const char *editor, const char *path, | |
| struct strbuf *buffer, const char *const *env) | |
| { | |
| if (!editor) | |
| return error("Terminal is dumb, but EDITOR unset"); | |
| if (strcmp(editor, ":")) { | |
| struct strbuf realpath = STRBUF_INIT; | |
| struct child_process p = CHILD_PROCESS_INIT; | |
| int ret, sig; | |
| int print_waiting_for_editor = advice_enabled(ADVICE_WAITING_FOR_EDITOR) && isatty(2); | |
| if (print_waiting_for_editor) { | |
| /* | |
| * A dumb terminal cannot erase the line later on. Add a | |
| * newline to separate the hint from subsequent output. | |
| * | |
| * Make sure that our message is separated with a whitespace | |
| * from further cruft that may be written by the editor. | |
| */ | |
| const char term = is_terminal_dumb() ? '\n' : ' '; | |
| fprintf(stderr, | |
| _("hint: Waiting for your editor to close the file...%c"), | |
| term); | |
| fflush(stderr); | |
| } | |
| strbuf_realpath(&realpath, path, 1); | |
| strvec_pushl(&p.args, editor, realpath.buf, NULL); | |
| if (env) | |
| strvec_pushv(&p.env, (const char **)env); | |
| p.use_shell = 1; | |
| p.trace2_child_class = "editor"; | |
| if (start_command(&p) < 0) { | |
| strbuf_release(&realpath); | |
| return error("unable to start editor '%s'", editor); | |
| } | |
| sigchain_push(SIGINT, SIG_IGN); | |
| sigchain_push(SIGQUIT, SIG_IGN); | |
| ret = finish_command(&p); | |
| strbuf_release(&realpath); | |
| 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 (print_waiting_for_editor && !is_terminal_dumb()) | |
| /* | |
| * Erase the entire line to avoid wasting the | |
| * vertical space. | |
| */ | |
| term_clear_line(); | |
| } | |
| if (!buffer) | |
| return 0; | |
| if (strbuf_read_file(buffer, path, 0) < 0) | |
| return error_errno("could not read file '%s'", path); | |
| return 0; | |
| } | |
| int launch_editor(const char *path, struct strbuf *buffer, const char *const *env) | |
| { | |
| return launch_specified_editor(git_editor(), path, buffer, env); | |
| } | |
| int launch_sequence_editor(const char *path, struct strbuf *buffer, | |
| const char *const *env) | |
| { | |
| return launch_specified_editor(git_sequence_editor(), path, buffer, env); | |
| } |