ls-files: excludes should not impact tracked files

In all parts of git, .gitignore and other exclude files
impact only how we treat untracked files; they should have
no effect on files listed in the index.

This behavior was originally implemented very early on in
9ff768e, but only for --exclude-from. Later, commit 63d285c
accidentally caused us to trigger the behavior for
--exclude-per-directory.

This patch totally ignores excludes for files found in the
index. This means we are reversing the original intent of
9ff768e, while at the same time fixing the accidental
behavior of 63d285c. This is a good thing, though, as the
way that 9ff768e behaved does not really make sense with the
way exclusions are used in modern git.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-ls-files.c b/builtin-ls-files.c
index da2daf45acd2154b7f00da34d41a5ab8acaf0c38..16a1370647fc69da357d7af9b195bb19a99c2123 100644 (file)
--- a/builtin-ls-files.c
+++ b/builtin-ls-files.c
@@ -175,10 +175,6 @@ static void show_files(struct dir_struct *dir, const char *prefix)
        if (show_cached | show_stage) {
                for (i = 0; i < active_nr; i++) {
                        struct cache_entry *ce = active_cache[i];
-                       int dtype = ce_to_dtype(ce);
-                       if (excluded(dir, ce->name, &dtype) !=
-                                       !!(dir->flags & DIR_SHOW_IGNORED))
-                               continue;
                        if (show_unmerged && !ce_stage(ce))
                                continue;
                        if (ce->ce_flags & CE_UPDATE)
@@ -191,10 +187,6 @@ static void show_files(struct dir_struct *dir, const char *prefix)
                        struct cache_entry *ce = active_cache[i];
                        struct stat st;
                        int err;
-                       int dtype = ce_to_dtype(ce);
-                       if (excluded(dir, ce->name, &dtype) !=
-                                       !!(dir->flags & DIR_SHOW_IGNORED))
-                               continue;
                        if (ce->ce_flags & CE_UPDATE)
                                continue;
                        err = lstat(ce->name, &st);

diff --git a/t/t3003-ls-files-exclude.sh b/t/t3003-ls-files-exclude.sh
new file mode 100755 (executable)
index 0000000..fc1e379
--- /dev/null
+++ b/t/t3003-ls-files-exclude.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+test_description='ls-files --exclude does not affect index files'
+. ./test-lib.sh
+
+test_expect_success 'create repo with file' '
+       echo content >file &&
+       git add file &&
+       git commit -m file &&
+       echo modification >file
+'
+
+check_output() {
+test_expect_success "ls-files output contains file ($1)" "
+       echo '$2' >expect &&
+       git ls-files --exclude-standard --$1 >output &&
+       test_cmp expect output
+"
+}
+
+check_all_output() {
+       check_output 'cached' 'file'
+       check_output 'modified' 'file'
+}
+
+check_all_output
+test_expect_success 'add file to gitignore' '
+       echo file >.gitignore
+'
+check_all_output
+
+test_done