Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "strbuf.h"
   3#include "run-command.h"
   4
   5void launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
   6{
   7        const char *editor, *terminal;
   8
   9        editor = getenv("GIT_EDITOR");
  10        if (!editor && editor_program)
  11                editor = editor_program;
  12        if (!editor)
  13                editor = getenv("VISUAL");
  14        if (!editor)
  15                editor = getenv("EDITOR");
  16
  17        terminal = getenv("TERM");
  18        if (!editor && (!terminal || !strcmp(terminal, "dumb"))) {
  19                fprintf(stderr,
  20                "Terminal is dumb but no VISUAL nor EDITOR defined.\n"
  21                "Please supply the message using either -m or -F option.\n");
  22                exit(1);
  23        }
  24
  25        if (!editor)
  26                editor = "vi";
  27
  28        if (strcmp(editor, ":")) {
  29                size_t len = strlen(editor);
  30                int i = 0;
  31                const char *args[6];
  32                struct strbuf arg0;
  33
  34                strbuf_init(&arg0, 0);
  35                if (strcspn(editor, "$ \t'") != len) {
  36                        /* there are specials */
  37                        strbuf_addf(&arg0, "%s \"$@\"", editor);
  38                        args[i++] = "sh";
  39                        args[i++] = "-c";
  40                        args[i++] = arg0.buf;
  41                }
  42                args[i++] = editor;
  43                args[i++] = path;
  44                args[i] = NULL;
  45
  46                if (run_command_v_opt_cd_env(args, 0, NULL, env))
  47                        die("There was a problem with the editor %s.", editor);
  48                strbuf_release(&arg0);
  49        }
  50
  51        if (!buffer)
  52                return;
  53        if (strbuf_read_file(buffer, path, 0) < 0)
  54                die("could not read message file '%s': %s",
  55                    path, strerror(errno));
  56}