Merge branch 'po/help-guides'

diff --git a/builtin/checkout.c b/builtin/checkout.c
index a9c1b5a95fea0a805819f995da2d2f1ba194433d..f8033f446e8f9ef1807aa28c2f9eca4e821c42c9 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -271,24 +271,55 @@ static int checkout_paths(const struct checkout_opts *opts,
                ;
        ps_matched = xcalloc(1, pos);
 
+       /*
+        * Make sure all pathspecs participated in locating the paths
+        * to be checked out.
+        */
        for (pos = 0; pos < active_nr; pos++) {
                struct cache_entry *ce = active_cache[pos];
+               ce->ce_flags &= ~CE_MATCHED;
                if (opts->source_tree && !(ce->ce_flags & CE_UPDATE))
+                       /*
+                        * "git checkout tree-ish -- path", but this entry
+                        * is in the original index; it will not be checked
+                        * out to the working tree and it does not matter
+                        * if pathspec matched this entry.  We will not do
+                        * anything to this entry at all.
+                        */
                        continue;
-               match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
+               /*
+                * Either this entry came from the tree-ish we are
+                * checking the paths out of, or we are checking out
+                * of the index.
+                *
+                * If it comes from the tree-ish, we already know it
+                * matches the pathspec and could just stamp
+                * CE_MATCHED to it from update_some(). But we still
+                * need ps_matched and read_tree_recursive (and
+                * eventually tree_entry_interesting) cannot fill
+                * ps_matched yet. Once it can, we can avoid calling
+                * match_pathspec() for _all_ entries when
+                * opts->source_tree != NULL.
+                */
+               if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce),
+                                  0, ps_matched))
+                       ce->ce_flags |= CE_MATCHED;
        }
 
-       if (report_path_error(ps_matched, opts->pathspec, opts->prefix))
+       if (report_path_error(ps_matched, opts->pathspec, opts->prefix)) {
+               free(ps_matched);
                return 1;
+       }
+       free(ps_matched);
 
        /* "checkout -m path" to recreate conflicted state */
        if (opts->merge)
-               unmerge_cache(opts->pathspec);
+               unmerge_marked_index(&the_index);
 
        /* 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 (ce->ce_flags & CE_MATCHED) {
                        if (!ce_stage(ce))
                                continue;
                        if (opts->force) {
@@ -313,9 +344,7 @@ static int checkout_paths(const struct checkout_opts *opts,
        state.refresh_cache = 1;
        for (pos = 0; pos < active_nr; pos++) {
                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 (ce->ce_flags & CE_MATCHED) {
                        if (!ce_stage(ce)) {
                                errs |= checkout_entry(ce, &state, NULL);
                                continue;