Add git_repository_hashfile to hash with filters

The existing `git_odb_hashfile` does not apply text filtering
rules because it doesn't have a repository context to evaluate
the correct rules to apply.  This adds a new hashfile function
that will apply repository-specific filters (based on config,
attributes, and filename) before calculating the hash.

1 files changed, 55 insertions, 0 deletions

diff --git a/tests-clar/repo/hashfile.c b/tests-clar/repo/hashfile.c
new file mode 100644
index 000000000..9fa0d9b0e
--- /dev/null
+++ b/tests-clar/repo/hashfile.c
@@ -0,0 +1,55 @@
+#include "clar_libgit2.h"
+#include "buffer.h"
+
+static git_repository *_repo;
+
+void test_repo_hashfile__initialize(void)
+{
+	_repo = cl_git_sandbox_init("status");
+}
+
+void test_repo_hashfile__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+	_repo = NULL;
+}
+
+void test_repo_hashfile__simple(void)
+{
+	git_oid a, b;
+	git_buf full = GIT_BUF_INIT;
+
+	cl_git_pass(git_odb_hashfile(&a, "status/current_file", GIT_OBJ_BLOB));
+	cl_git_pass(git_repository_hashfile(&b, _repo, "current_file", GIT_OBJ_BLOB, NULL));
+	cl_assert(git_oid_equal(&a, &b));
+
+	cl_git_pass(git_buf_joinpath(&full, git_repository_workdir(_repo), "current_file"));
+
+	cl_git_pass(git_odb_hashfile(&a, full.ptr, GIT_OBJ_BLOB));
+	cl_git_pass(git_repository_hashfile(&b, _repo, full.ptr, GIT_OBJ_BLOB, NULL));
+	cl_assert(git_oid_equal(&a, &b));
+
+	git_buf_free(&full);
+}
+
+void test_repo_hashfile__filtered(void)
+{
+	git_oid a, b;
+	git_config *config;
+
+	cl_git_pass(git_repository_config(&config, _repo));
+	cl_git_pass(git_config_set_bool(config, "core.autocrlf", true));
+	git_config_free(config);
+
+	cl_git_append2file("status/.gitattributes", "*.txt text\n*.bin binary\n\n");
+
+	cl_git_mkfile("status/testfile.txt", "content\r\n"); /* Content with CRLF */
+
+	cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJ_BLOB));
+	cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJ_BLOB, NULL));
+	cl_assert(git_oid_cmp(&a, &b)); /* not equal */
+
+	cl_git_pass(git_odb_hashfile(&a, "status/testfile.txt", GIT_OBJ_BLOB));
+	cl_git_pass(git_repository_hashfile(&b, _repo, "testfile.txt", GIT_OBJ_BLOB, "testfile.bin"));
+	cl_assert(git_oid_equal(&a, &b)); /* equal when 'binary' 'as_file' name is used */
+}