editor.c: Libify launch_editor()

[thirdparty/git.git] / editor.c

diff --git a/editor.c b/editor.c
index 483b62d2ce2bd913edcfedf2ee4bc908db7e6adc..eebc3e95fe0c7e61f7c29fa5412ea9d4a5900f92 100644 (file)
--- a/editor.c
+++ b/editor.c
@@ -2,7 +2,7 @@
 #include "strbuf.h"
 #include "run-command.h"
 
-void launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
+int launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
 {
        const char *editor, *terminal;
 
@@ -15,12 +15,8 @@ void launch_editor(const char *path, struct strbuf *buffer, const char *const *e
                editor = getenv("EDITOR");
 
        terminal = getenv("TERM");
-       if (!editor && (!terminal || !strcmp(terminal, "dumb"))) {
-               fprintf(stderr,
-               "Terminal is dumb but no VISUAL nor EDITOR defined.\n"
-               "Please supply the message using either -m or -F option.\n");
-               exit(1);
-       }
+       if (!editor && (!terminal || !strcmp(terminal, "dumb")))
+               return error("Terminal is dumb but no VISUAL nor EDITOR defined.");
 
        if (!editor)
                editor = "vi";
@@ -28,6 +24,7 @@ void launch_editor(const char *path, struct strbuf *buffer, const char *const *e
        if (strcmp(editor, ":")) {
                size_t len = strlen(editor);
                int i = 0;
+               int failed;
                const char *args[6];
                struct strbuf arg0;
 
@@ -43,14 +40,17 @@ void launch_editor(const char *path, struct strbuf *buffer, const char *const *e
                args[i++] = path;
                args[i] = NULL;
 
-               if (run_command_v_opt_cd_env(args, 0, NULL, env))
-                       die("There was a problem with the editor %s.", editor);
+               failed = run_command_v_opt_cd_env(args, 0, NULL, env);
                strbuf_release(&arg0);
+               if (failed)
+                       return error("There was a problem with the editor '%s'.",
+                                       editor);
        }
 
        if (!buffer)
-               return;
+               return 0;
        if (strbuf_read_file(buffer, path, 0) < 0)
-               die("could not read message file '%s': %s",
-                   path, strerror(errno));
+               return error("could not read file '%s': %s",
+                               path, strerror(errno));
+       return 0;
 }