archive: reorder option parsing and config reading

The archive command does three things during its initialization phase: 1. parse command-line options 2. setup the git directory 3. read config During phase (1), if we see any options that do not require a git directory (like "--list"), we handle them immediately and exit, making it safe to abort step (2) if we are not in a git directory. Step (3) must come after step (2), since the git directory may influence configuration. However, this leaves no possibility of configuration from step (3) impacting the command-line options in step (1) (which is useful, for example, for supporting user-configurable output formats). Instead, let's reorder this to: 1. setup the git directory, if it exists 2. read config 3. parse command-line options 4. if we are not in a git repository, die This should have the same external behavior, but puts configuration before command-line parsing. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Jeff King committed Jun 15, 2011 at 18:31 UTC 2321286298bf956a3fa8e91dd361b8cf4e81e6a0
1 file changed +14 -4
archive.c
+14 -4
@@ -387,17 +387,27 @@ static int parse_archive_args(int argc, const char **argv,
387 int write_archive(int argc, const char **argv, const char *prefix,
388 int setup_prefix)
389 {
390 + int nongit = 0;
391 const struct archiver *ar = NULL;
392 struct archiver_args args;
393
393 - argc = parse_archive_args(argc, argv, &ar, &args);
394 if (setup_prefix && prefix == NULL)
395 - prefix = setup_git_directory();
395 + prefix = setup_git_directory_gently(&nongit);
396 +
397 + git_config(git_default_config, NULL);
398 +
399 + argc = parse_archive_args(argc, argv, &ar, &args);
400 + if (nongit) {
401 + /*
402 + * We know this will die() with an error, so we could just
403 + * die ourselves; but its error message will be more specific
404 + * than what we could write here.
405 + */
406 + setup_git_directory();
407 + }
408
409 parse_treeish_arg(argv, &args, prefix);
410 parse_pathspec_arg(argv + 1, &args);
411
400 - git_config(git_default_config, NULL);
401 -
412 return ar->write_archive(&args);
413 }