X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-ls-files.c;h=6c1db86e8056285cb25359d55f5ebf9dd0e6f489;hb=55246aac6717e86c14f31391ac903ed810d1a9a0;hp=5398a41415372b07fa1fdb43c26b5570e9d990b8;hpb=9bfe9f80b1f57dd5bd63c94516fb8aa820fef1cd;p=git.git

diff --git a/builtin-ls-files.c b/builtin-ls-files.c
index 5398a4141..6c1db86e8 100644
--- a/builtin-ls-files.c
+++ b/builtin-ls-files.c
@@ -9,6 +9,7 @@
 #include "quote.h"
 #include "dir.h"
 #include "builtin.h"
+#include "tree.h"
 
 static int abbrev;
 static int show_deleted;
@@ -26,6 +27,7 @@ static int prefix_offset;
 static const char **pathspec;
 static int error_unmatch;
 static char *ps_matched;
+static const char *with_tree;
 
 static const char *tag_cached = "";
 static const char *tag_unmerged = "";
@@ -247,6 +249,8 @@ static void show_files(struct dir_struct *dir, const char *prefix)
 				continue;
 			if (show_unmerged && !ce_stage(ce))
 				continue;
+			if (ce->ce_flags & htons(CE_UPDATE))
+				continue;
 			show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
 		}
 	}
@@ -332,6 +336,67 @@ static const char *verify_pathspec(const char *prefix)
 	return real_prefix;
 }
 
+/*
+ * Read the tree specified with --with-tree option
+ * (typically, HEAD) into stage #1 and then
+ * squash them down to stage #0.  This is used for
+ * --error-unmatch to list and check the path patterns
+ * that were given from the command line.  We are not
+ * going to write this index out.
+ */
+static void overlay_tree(const char *tree_name, const char *prefix)
+{
+	struct tree *tree;
+	unsigned char sha1[20];
+	const char **match;
+	struct cache_entry *last_stage0 = NULL;
+	int i;
+
+	if (get_sha1(tree_name, sha1))
+		die("tree-ish %s not found.", tree_name);
+	tree = parse_tree_indirect(sha1);
+	if (!tree)
+		die("bad tree-ish %s", tree_name);
+
+	/* Hoist the unmerged entries up to stage #3 to make room */
+	for (i = 0; i < active_nr; i++) {
+		struct cache_entry *ce = active_cache[i];
+		if (!ce_stage(ce))
+			continue;
+		ce->ce_flags |= htons(CE_STAGEMASK);
+	}
+
+	if (prefix) {
+		static const char *(matchbuf[2]);
+		matchbuf[0] = prefix;
+		matchbuf [1] = NULL;
+		match = matchbuf;
+	} else
+		match = NULL;
+	if (read_tree(tree, 1, match))
+		die("unable to read tree entries %s", tree_name);
+
+	for (i = 0; i < active_nr; i++) {
+		struct cache_entry *ce = active_cache[i];
+		switch (ce_stage(ce)) {
+		case 0:
+			last_stage0 = ce;
+			/* fallthru */
+		default:
+			continue;
+		case 1:
+			/*
+			 * If there is stage #0 entry for this, we do not
+			 * need to show it.  We use CE_UPDATE bit to mark
+			 * such an entry.
+			 */
+			if (last_stage0 &&
+			    !strcmp(last_stage0->name, ce->name))
+				ce->ce_flags |= htons(CE_UPDATE);
+		}
+	}
+}
+
 static const char ls_files_usage[] =
 	"git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
 	"[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
@@ -452,6 +517,10 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
 			error_unmatch = 1;
 			continue;
 		}
+		if (!prefixcmp(arg, "--with-tree=")) {
+			with_tree = arg + 12;
+			continue;
+		}
 		if (!prefixcmp(arg, "--abbrev=")) {
 			abbrev = strtoul(arg+9, NULL, 10);
 			if (abbrev && abbrev < MINIMUM_ABBREV)
@@ -469,9 +538,11 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
 		break;
 	}
 
-	if (require_work_tree &&
-			(is_bare_repository() || is_inside_git_dir()))
-		die("This operation must be run in a work tree");
+	if (require_work_tree && !is_inside_work_tree()) {
+		const char *work_tree = get_git_work_tree();
+		if (!work_tree || chdir(work_tree))
+			die("This operation must be run in a work tree");
+	}
 
 	pathspec = get_pathspec(prefix, argv + i);
 
@@ -501,6 +572,15 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
 	read_cache();
 	if (prefix)
 		prune_cache(prefix);
+	if (with_tree) {
+		/*
+		 * Basic sanity check; show-stages and show-unmerged
+		 * would not make any sense with this option.
+		 */
+		if (show_stage || show_unmerged)
+			die("ls-files --with-tree is incompatible with -s or -u");
+		overlay_tree(with_tree, prefix);
+	}
 	show_files(&dir, prefix);
 
 	if (ps_matched) {
@@ -509,8 +589,28 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
 		 */
 		int num, errors = 0;
 		for (num = 0; pathspec[num]; num++) {
+			int other, found_dup;
+
 			if (ps_matched[num])
 				continue;
+			/*
+			 * The caller might have fed identical pathspec
+			 * twice.  Do not barf on such a mistake.
+			 */
+			for (found_dup = other = 0;
+			     !found_dup && pathspec[other];
+			     other++) {
+				if (other == num || !ps_matched[other])
+					continue;
+				if (!strcmp(pathspec[other], pathspec[num]))
+					/*
+					 * Ok, we have a match already.
+					 */
+					found_dup = 1;
+			}
+			if (found_dup)
+				continue;
+
 			error("pathspec '%s' did not match any file(s) known to git.",
 			      pathspec[num] + prefix_offset);
 			errors++;