[PATCH v3 5/7] sparse-checkout: add --verbose option to 'clean'

From

Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>

Date

Sep 12, 2025, 10:30 UTC

Message-ID

<2cde464fd4c225144489c222537e5d7549f81849.1757673011.git.gitgitgadget@gmail.com>

In-Reply-To

<pull.1941.v3.git.1757673011.gitgitgadget@gmail.com>

From: Derrick Stolee <stolee@gmail.com>

Signed-off-by: Derrick Stolee <stolee@gmail.com>
---
 Documentation/git-sparse-checkout.adoc |  5 +++++
 builtin/sparse-checkout.c              | 28 ++++++++++++++++++++++++--
 t/t1091-sparse-checkout-builtin.sh     | 14 ++++++++++---
 3 files changed, 42 insertions(+), 5 deletions(-)

diff --git a/Documentation/git-sparse-checkout.adoc b/Documentation/git-sparse-checkout.adoc
index 42050ff5b5..113728a0e7 100644
--- a/Documentation/git-sparse-checkout.adoc
+++ b/Documentation/git-sparse-checkout.adoc
@@ -136,6 +136,11 @@ The `--dry-run` option will list the directories that would be removed
 without deleting them. Running in this mode can be helpful to predict the
 behavior of the clean comand or to determine which kinds of files are left
 in the sparse directories.
++
+The `--verbose` option will list every file within the directories that
+are considered for removal. This option is helpful to determine if those
+files are actually important or perhaps to explain why the directory is
+still present despite the current sparse-checkout.
 
 'disable'::
 	Disable the `core.sparseCheckout` config setting, and restore the
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index d777b64960..8d3c3485f5 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -930,6 +930,26 @@ static char const * const builtin_sparse_checkout_clean_usage[] = {
 	NULL
 };
 
+static int list_file_iterator(const char *path, const void *data)
+{
+	const char *msg = data;
+
+	printf(msg, path);
+	return 0;
+}
+
+static void list_every_file_in_dir(const char *msg,
+				   const char *directory)
+{
+	struct strbuf path = STRBUF_INIT;
+
+	strbuf_addstr(&path, directory);
+	fprintf(stderr, "list every file in %s\n", directory);
+
+	for_each_file_in_dir(&path, list_file_iterator, msg);
+	strbuf_release(&path);
+}
+
 static const char *msg_remove = N_("Removing %s\n");
 static const char *msg_would_remove = N_("Would remove %s\n");
 
@@ -940,12 +960,13 @@ static int sparse_checkout_clean(int argc, const char **argv,
 	struct strbuf full_path = STRBUF_INIT;
 	const char *msg = msg_remove;
 	size_t worktree_len;
-	int force = 0, dry_run = 0;
+	int force = 0, dry_run = 0, verbose = 0;
 	int require_force = 1;
 
 	struct option builtin_sparse_checkout_clean_options[] = {
 		OPT__DRY_RUN(&dry_run, N_("dry run")),
 		OPT__FORCE(&force, N_("force"), PARSE_OPT_NOCOMPLETE),
+		OPT__VERBOSE(&verbose, N_("report each affected file, not just directories")),
 		OPT_END(),
 	};
 
@@ -987,7 +1008,10 @@ static int sparse_checkout_clean(int argc, const char **argv,
 		if (!is_directory(full_path.buf))
 			continue;
 
-		printf(msg, ce->name);
+		if (verbose)
+			list_every_file_in_dir(msg, ce->name);
+		else
+			printf(msg, ce->name);
 
 		if (dry_run <= 0 &&
 		    remove_dir_recursively(&full_path, 0))
diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh
index e6b768a8da..7b15fa669c 100755
--- a/t/t1091-sparse-checkout-builtin.sh
+++ b/t/t1091-sparse-checkout-builtin.sh
@@ -1053,11 +1053,11 @@ test_expect_success 'check-rules null termination' '
 test_expect_success 'clean' '
 	git -C repo sparse-checkout set --cone deep/deeper1 &&
 	git -C repo sparse-checkout reapply &&
-	mkdir repo/deep/deeper2 repo/folder1 &&
+	mkdir -p repo/deep/deeper2 repo/folder1/extra/inside &&
 
 	# Add untracked files
 	touch repo/deep/deeper2/file &&
-	touch repo/folder1/file &&
+	touch repo/folder1/extra/inside/file &&
 
 	test_must_fail git -C repo sparse-checkout clean 2>err &&
 	grep "refusing to clean" err &&
@@ -1074,7 +1074,15 @@ test_expect_success 'clean' '
 	git -C repo sparse-checkout clean --dry-run >out &&
 	test_cmp expect out &&
 	test_path_exists repo/deep/deeper2 &&
-	test_path_exists repo/folder1 &&
+	test_path_exists repo/folder1/extra/inside/file &&
+
+	cat >expect <<-\EOF &&
+	Would remove deep/deeper2/file
+	Would remove folder1/extra/inside/file
+	EOF
+
+	git -C repo sparse-checkout clean --dry-run --verbose >out &&
+	test_cmp expect out &&
 
 	cat >expect <<-\EOF &&
 	Removing deep/deeper2/

-- 
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