[PATCH v4 2/3] ls_files.c: consolidate two for loops into one

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From: ZheNing Hu <adlternative@xxxxxxxxx>

Refactor the two for loops into one,skip showing the ce if it
has the same name as the previously shown one, only when doing so
won't lose information.

Signed-off-by: ZheNing Hu <adlternative@xxxxxxxxx>
---
 builtin/ls-files.c | 68 +++++++++++++++++++---------------------------
 1 file changed, 28 insertions(+), 40 deletions(-)

diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 6f97a23c2dc..49c242128d7 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -312,49 +312,37 @@ static void show_files(struct repository *repo, struct dir_struct *dir)
 		if (show_killed)
 			show_killed_files(repo->index, dir);
 	}
-	if (show_cached || show_stage) {
-		for (i = 0; i < repo->index->cache_nr; i++) {
-			const struct cache_entry *ce = repo->index->cache[i];
-
-			construct_fullname(&fullname, repo, ce);
-
-			if ((dir->flags & DIR_SHOW_IGNORED) &&
-			    !ce_excluded(dir, repo->index, fullname.buf, ce))
-				continue;
-			if (show_unmerged && !ce_stage(ce))
-				continue;
-			if (ce->ce_flags & CE_UPDATE)
-				continue;
-			show_ce(repo, dir, ce, fullname.buf,
-				ce_stage(ce) ? tag_unmerged :
-				(ce_skip_worktree(ce) ? tag_skip_worktree :
-				 tag_cached));
-		}
-	}
-	if (show_deleted || show_modified) {
-		for (i = 0; i < repo->index->cache_nr; i++) {
-			const struct cache_entry *ce = repo->index->cache[i];
-			struct stat st;
-			int err;
+	if (! (show_cached || show_stage || show_deleted || show_modified))
+		return;
+	for (i = 0; i < repo->index->cache_nr; i++) {
+		const struct cache_entry *ce = repo->index->cache[i];
+		struct stat st;
+		int err;
 
-			construct_fullname(&fullname, repo, ce);
+		construct_fullname(&fullname, repo, ce);
 
-			if ((dir->flags & DIR_SHOW_IGNORED) &&
-			    !ce_excluded(dir, repo->index, fullname.buf, ce))
-				continue;
-			if (ce->ce_flags & CE_UPDATE)
-				continue;
-			if (ce_skip_worktree(ce))
-				continue;
-			err = lstat(fullname.buf, &st);
-			if (err) {
-					if (show_deleted)
-						show_ce(repo, dir, ce, fullname.buf, tag_removed);
-					if (show_modified)
-						show_ce(repo, dir, ce, fullname.buf, tag_modified);
-			}else if (show_modified && ie_modified(repo->index, ce, &st, 0))
-				show_ce(repo, dir, ce, fullname.buf, tag_modified);
+		if ((dir->flags & DIR_SHOW_IGNORED) &&
+			!ce_excluded(dir, repo->index, fullname.buf, ce))
+			continue;
+		if (ce->ce_flags & CE_UPDATE)
+			continue;
+		if (show_cached || show_stage) {
+			if (!show_unmerged || ce_stage(ce))
+				show_ce(repo, dir, ce, fullname.buf,
+					ce_stage(ce) ? tag_unmerged :
+					(ce_skip_worktree(ce) ? tag_skip_worktree :
+						tag_cached));
 		}
+		if (ce_skip_worktree(ce))
+			continue;
+		err = lstat(fullname.buf, &st);
+		if (err) {
+				if (show_deleted)
+					show_ce(repo, dir, ce, fullname.buf, tag_removed);
+				if (show_modified)
+					show_ce(repo, dir, ce, fullname.buf, tag_modified);
+		}else if (show_modified && ie_modified(repo->index, ce, &st, 0))
+			show_ce(repo, dir, ce, fullname.buf, tag_modified);
 	}
 
 	strbuf_release(&fullname);
-- 
gitgitgadget




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