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[PATCH v3 12/31] checkout: convert to use parse_pathspec

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Jan 13, 2013, 12:35 UTC
Message-ID
<1358080539-17436-13-git-send-email-pclouds@gmail.com>
In-Reply-To
<1358080539-17436-1-git-send-email-pclouds@gmail.com>
This commit introduces a subtle bug:
- when match_pathspec() returns seen[], it follows the order of the
  input "const char **pathspec", which is now pathspec.raw[]
- when match_pathspec() returns seen[], it follows the order of
  pathspec.items[]
- due to 86e4ca6 (tree_entry_interesting(): fix depth limit with
  overlapping pathspecs - 2010-12-15), pathspec.items[] is sorted, but
  pathspec.raw[] is NOT.

by converting from match_pathspec() to match_pathspec_depth(), we also have to switch the original path array. Unfortunately we can't because this array is processed by report_path_error() and it's also used by builtin/ls-files.c, which still uses the old indexing.

The bug causes wrong error messages (e.g. if the first pathspec is faulty, it may report the second..) The bug will be dealt with after ls-files is converted.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/checkout.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/builtin/checkout.c b/builtin/checkout.c
index a9c1b5a..3e60f2e 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -45,7 +45,7 @@ struct checkout_opts {
 
 	int branch_exists;
 	const char *prefix;
-	const char **pathspec;
+	struct pathspec pathspec;
 	struct tree *source_tree;
 };
 
@@ -256,39 +256,37 @@ static int checkout_paths(const struct checkout_opts *opts,
 
 	if (opts->patch_mode)
 		return run_add_interactive(revision, "--patch=checkout",
-					   opts->pathspec);
+					   opts->pathspec.raw);
 
 	lock_file = xcalloc(1, sizeof(struct lock_file));
 
 	newfd = hold_locked_index(lock_file, 1);
-	if (read_cache_preload(opts->pathspec) < 0)
+	if (read_cache_preload(opts->pathspec.raw) < 0)
 		return error(_("corrupt index file"));
 
 	if (opts->source_tree)
-		read_tree_some(opts->source_tree, opts->pathspec);
+		read_tree_some(opts->source_tree, opts->pathspec.raw);
 
-	for (pos = 0; opts->pathspec[pos]; pos++)
-		;
-	ps_matched = xcalloc(1, pos);
+	ps_matched = xcalloc(1, opts->pathspec.nr);
 
 	for (pos = 0; pos < active_nr; pos++) {
 		struct cache_entry *ce = active_cache[pos];
 		if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
 			continue;
-		match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
+		match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
 	}
 
-	if (report_path_error(ps_matched, opts->pathspec, opts->prefix))
+	if (report_path_error(ps_matched, opts->pathspec.raw, opts->prefix))
 		return 1;
 
 	/* "checkout -m path" to recreate conflicted state */
 	if (opts->merge)
-		unmerge_cache(opts->pathspec);
+		unmerge_cache(opts->pathspec.raw);
 
 	/* Any unmerged paths? */
 	for (pos = 0; pos < active_nr; pos++) {
 		struct cache_entry *ce = active_cache[pos];
-		if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
+		if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
 			if (!ce_stage(ce))
 				continue;
 			if (opts->force) {
@@ -315,7 +313,7 @@ static int checkout_paths(const struct checkout_opts *opts,
 		struct cache_entry *ce = active_cache[pos];
 		if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
 			continue;
-		if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
+		if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
 			if (!ce_stage(ce)) {
 				errs |= checkout_entry(ce, &state, NULL);
 				continue;
@@ -960,7 +958,7 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts)
 static int checkout_branch(struct checkout_opts *opts,
 			   struct branch_info *new)
 {
-	if (opts->pathspec)
+	if (opts->pathspec.nr)
 		die(_("paths cannot be used with switching branches"));
 
 	if (opts->patch_mode)
@@ -1110,9 +1108,16 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 	}
 
 	if (argc) {
-		opts.pathspec = get_pathspec(prefix, argv);
+		/*
+		 * In patch mode (opts.patch_mode != 0), we pass the
+		 * pathspec to an external program, git-add--interactive.
+		 * Do not accept any kind of magic that that program
+		 * cannot handle. Magic mask is pretty safe to be
+		 * lifted for new magic when opts.patch_mode == 0.
+		 */
+		parse_pathspec(&opts.pathspec, PATHSPEC_FROMTOP, 0, prefix, argv);
 
-		if (!opts.pathspec)
+		if (!opts.pathspec.nr)
 			die(_("invalid path specification"));
 
 		/*
@@ -1144,7 +1149,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 		strbuf_release(&buf);
 	}
 
-	if (opts.patch_mode || opts.pathspec)
+	if (opts.patch_mode || opts.pathspec.nr)
 		return checkout_paths(&opts, new.name);
 	else
 		return checkout_branch(&opts, &new);

-- 
1.8.0.rc2.23.g1fb49df
Previous: Nguyễn Thái Ngọc DuyNext: Nguyễn Thái Ngọc Duy
Message 17 of 37 in “nd/parse-pathspec”
  1. 00/31 nd/parse-pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  2. 01/31 clean: remove unused variable "seen"Nguyễn Thái Ngọc Duy, Jan 13, 2013
  3. 02/31 Add copy_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  4. 03/31 Add parse_pathspec() that converts cmdline args to struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  5. Martin von ZweigbergkJan 14, 2013
  6. Duy NguyenJan 14, 2013
  7. 04/31 parse_pathspec: save original pathspec for reportingNguyễn Thái Ngọc Duy, Jan 13, 2013
  8. 05/31 Export parse_pathspec() and convert some get_pathspec() callsNguyễn Thái Ngọc Duy, Jan 13, 2013
  9. 06/31 Guard against new pathspec magic in pathspec matching codeNguyễn Thái Ngọc Duy, Jan 13, 2013
  10. 07/31 clean: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  11. 08/31 parse_pathspec: add PATHSPEC_EMPTY_MATCH_ALLNguyễn Thái Ngọc Duy, Jan 13, 2013
  12. Martin von ZweigbergkJan 21, 2013
  13. Duy NguyenJan 22, 2013
  14. 09/31 commit: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  15. 10/31 status: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  16. 11/31 rerere: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  17. 12/31 checkout: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  18. 13/31 rm: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  19. 14/31 parse_pathspec: support stripping submodule trailing slashesNguyễn Thái Ngọc Duy, Jan 13, 2013
  20. 15/31 ls-files: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  21. 16/31 archive: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  22. 17/31 parse_pathspec: support stripping/checking submodule pathsNguyễn Thái Ngọc Duy, Jan 13, 2013
  23. 18/31 add: convert to use parse_pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  24. 19/31 Convert read_cache_preload() to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  25. 20/31 Convert unmerge_cache to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  26. 21/31 checkout: convert read_tree_some to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  27. 22/31 Convert report_path_error to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  28. 23/31 Convert refresh_index to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  29. 24/31 Convert {read,fill}_directory to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  30. 25/31 Convert add_files_to_cache to take struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  31. 26/31 Convert common_prefix() to use struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  32. 27/31 Remove diff_tree_{setup,release}_pathsNguyễn Thái Ngọc Duy, Jan 13, 2013
  33. 28/31 Remove init_pathspec() in favor of parse_pathspec()Nguyễn Thái Ngọc Duy, Jan 13, 2013
  34. 29/31 Remove match_pathspec() in favor of match_pathspec_depth()Nguyễn Thái Ngọc Duy, Jan 13, 2013
  35. 30/31 tree-diff: remove the use of pathspec's raw[] in follow-rename codepathNguyễn Thái Ngọc Duy, Jan 13, 2013
  36. 31/31 Rename field "raw" to "_raw" in struct pathspecNguyễn Thái Ngọc Duy, Jan 13, 2013
  37. Junio C HamanoJan 13, 2013

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