]> git.proxmox.com Git - libgit2.git/commitdiff
Add git_repository_reset_filesystem and fix tests
authorRussell Belfer <rb@github.com>
Fri, 4 Oct 2013 23:32:16 +0000 (16:32 -0700)
committerRussell Belfer <rb@github.com>
Fri, 4 Oct 2013 23:32:16 +0000 (16:32 -0700)
When a repository is transferred from one file system to another,
many of the config settings that represent the properties of the
file system may be wrong.  This adds a new public API that will
refresh the config settings of the repository to account for the
change of file system.  This doesn't do a full "reinitialize" and
operates on a existing git_repository object refreshing the config
when done.

This commit then makes use of the new API in clar as each test
repository is set up.

This commit also has a number of other clar test fixes where we
were making assumptions about the type of filesystem, either based
on outdated config data or based on the OS instead of the FS.

include/git2/repository.h
src/config.h
src/repository.c
tests-clar/clar_libgit2.c
tests-clar/diff/diff_helpers.c
tests-clar/diff/diffiter.c
tests-clar/diff/drivers.c
tests-clar/diff/patch.c
tests-clar/index/filemodes.c

index b4d56199219ce7293e926d89286cb56aafcb0a1e..74ab65bf7c7b9d031750ef885d01213552e8a9dd 100644 (file)
@@ -287,6 +287,23 @@ GIT_EXTERN(int) git_repository_init_ext(
        const char *repo_path,
        git_repository_init_options *opts);
 
+/**
+ * Update the filesystem config settings for an open repository
+ *
+ * When a repository is initialized, config values are set based on the
+ * properties of the filesystem that the repository is on, such as
+ * "core.ignorecase", "core.filemode", "core.symlinks", etc.  If the
+ * repository is moved to a new filesystem, these properties may no
+ * longer be correct and API calls may not behave as expected.  This
+ * call reruns the phase of repository initialization that sets those
+ * properties to compensate for the current filesystem of the repo.
+ *
+ * @param repo A repository object
+ * @returrn 0 on success, < 0 on error
+ */
+GIT_EXTERN(int) git_repository_reset_filesystem(
+       git_repository *repo);
+
 /**
  * Retrieve and resolve the reference pointed at by HEAD.
  *
index 85db5e3e1b953038c65241c223e859ebad7815ac..01e8465cc3487ef8499ac43d8c3033ec285a3d4f 100644 (file)
@@ -47,7 +47,7 @@ extern int git_config_rename_section(
  * @param out the new backend
  * @param path where the config file is located
  */
-extern int git_config_file__ondisk(struct git_config_backend **out, const char *path);
+extern int git_config_file__ondisk(git_config_backend **out, const char *path);
 
 extern int git_config__normalize_name(const char *in, char **out);
 
index f609e5779cb9d53dfa28cd8357b06a30e51ae6b6..52509ffc1cd5d34c2cf22ad7524c25e9be700719 100644 (file)
@@ -962,34 +962,46 @@ static int create_empty_file(const char *path, mode_t mode)
 }
 
 static int repo_init_config(
+       git_config *parent,
        const char *repo_dir,
        const char *work_dir,
-       git_repository_init_options *opts)
+       uint32_t flags,
+       uint32_t mode)
 {
        int error = 0;
-       git_buf cfg_path = GIT_BUF_INIT;
+       git_buf buf = GIT_BUF_INIT;
+       const char *cfg_path = NULL;
        git_config *config = NULL;
-       bool is_bare = ((opts->flags & GIT_REPOSITORY_INIT_BARE) != 0);
+       bool is_bare = ((flags & GIT_REPOSITORY_INIT_BARE) != 0);
 
 #define SET_REPO_CONFIG(TYPE, NAME, VAL) do {\
        if ((error = git_config_set_##TYPE(config, NAME, VAL)) < 0) \
                goto cleanup; } while (0)
 
-       if (git_buf_joinpath(&cfg_path, repo_dir, GIT_CONFIG_FILENAME_INREPO) < 0)
+       if (git_buf_joinpath(&buf, repo_dir, GIT_CONFIG_FILENAME_INREPO) < 0)
                return -1;
+       cfg_path = git_buf_cstr(&buf);
 
-       if (!git_path_isfile(git_buf_cstr(&cfg_path)) &&
-               create_empty_file(git_buf_cstr(&cfg_path), GIT_CONFIG_FILE_MODE) < 0) {
-                       git_buf_free(&cfg_path);
-                       return -1;
-       }
+       if (!git_path_isfile(cfg_path) &&
+               (error = create_empty_file(cfg_path, GIT_CONFIG_FILE_MODE)) < 0)
+               goto cleanup;
 
-       if (git_config_open_ondisk(&config, git_buf_cstr(&cfg_path)) < 0) {
-               git_buf_free(&cfg_path);
-               return -1;
+       if (!parent)
+               error = git_config_open_ondisk(&config, cfg_path);
+       else if ((error = git_config_open_level(
+               &config, parent, GIT_CONFIG_LEVEL_LOCAL)) < 0)
+       {
+               giterr_clear();
+
+               if (!(error = git_config_add_file_ondisk(
+                               parent, cfg_path, GIT_CONFIG_LEVEL_LOCAL, false)))
+                       error = git_config_open_level(
+                               &config, parent, GIT_CONFIG_LEVEL_LOCAL);
        }
+       if (error < 0)
+               goto cleanup;
 
-       if ((opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0 &&
+       if ((flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0 &&
                (error = check_repositoryformatversion(config)) < 0)
                goto cleanup;
 
@@ -998,7 +1010,7 @@ static int repo_init_config(
        SET_REPO_CONFIG(
                int32, "core.repositoryformatversion", GIT_REPO_VERSION);
        SET_REPO_CONFIG(
-               bool, "core.filemode", is_chmod_supported(git_buf_cstr(&cfg_path)));
+               bool, "core.filemode", is_chmod_supported(cfg_path));
 
 #ifdef GIT_USE_ICONV
        SET_REPO_CONFIG(
@@ -1009,38 +1021,70 @@ static int repo_init_config(
        if (!are_symlinks_supported(is_bare ? repo_dir : work_dir))
                SET_REPO_CONFIG(bool, "core.symlinks", false);
 
+       /* core git does not do this on a reinit, but it is a property of
+        * the filesystem, so I think we should...
+        */
+       if (!(flags & GIT_REPOSITORY_INIT__IS_REINIT) &&
+               is_filesystem_case_insensitive(repo_dir))
+               SET_REPO_CONFIG(bool, "core.ignorecase", true);
+
        if (!is_bare) {
                SET_REPO_CONFIG(bool, "core.logallrefupdates", true);
 
-               if (!(opts->flags & GIT_REPOSITORY_INIT__NATURAL_WD)) {
+               if (!(flags & GIT_REPOSITORY_INIT__NATURAL_WD)) {
                        SET_REPO_CONFIG(string, "core.worktree", work_dir);
                }
-               else if ((opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0) {
+               else if ((flags & GIT_REPOSITORY_INIT__IS_REINIT) != 0) {
                        if (git_config_delete_entry(config, "core.worktree") < 0)
                                giterr_clear();
                }
        }
 
-       if (!(opts->flags & GIT_REPOSITORY_INIT__IS_REINIT) &&
-               is_filesystem_case_insensitive(repo_dir))
-               SET_REPO_CONFIG(bool, "core.ignorecase", true);
-
-       if (opts->mode == GIT_REPOSITORY_INIT_SHARED_GROUP) {
+       if (mode == GIT_REPOSITORY_INIT_SHARED_GROUP) {
                SET_REPO_CONFIG(int32, "core.sharedrepository", 1);
                SET_REPO_CONFIG(bool, "receive.denyNonFastforwards", true);
        }
-       else if (opts->mode == GIT_REPOSITORY_INIT_SHARED_ALL) {
+       else if (mode == GIT_REPOSITORY_INIT_SHARED_ALL) {
                SET_REPO_CONFIG(int32, "core.sharedrepository", 2);
                SET_REPO_CONFIG(bool, "receive.denyNonFastforwards", true);
        }
 
 cleanup:
-       git_buf_free(&cfg_path);
+       git_buf_free(&buf);
        git_config_free(config);
 
        return error;
 }
 
+int git_repository_reset_filesystem(git_repository *repo)
+{
+       int error = 0;
+       uint32_t flags = 0;
+       const char *repo_dir, *work_dir;
+       git_config *cfg;
+
+       assert(repo);
+
+       repo_dir = git_repository_path(repo);
+       work_dir = git_repository_workdir(repo);
+
+       if (git_repository_is_bare(repo))
+               flags |= GIT_REPOSITORY_INIT_BARE;
+       else if (!git__prefixcmp(repo_dir, work_dir) &&
+               !strcmp(repo_dir + strlen(work_dir), DOT_GIT "/"))
+               flags |= GIT_REPOSITORY_INIT__NATURAL_WD;
+
+       if ((error = git_repository_config(&cfg, repo)) < 0)
+               return error;
+
+       error = repo_init_config(cfg, repo_dir, work_dir, flags, 0);
+
+       git_config_free(cfg);
+       git_repository__cvar_cache_clear(repo);
+
+       return error;
+}
+
 static int repo_write_template(
        const char *git_dir,
        bool allow_overwrite,
@@ -1429,22 +1473,22 @@ int git_repository_init_ext(
                opts->flags |= GIT_REPOSITORY_INIT__IS_REINIT;
 
                error = repo_init_config(
-                       git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts);
+                       NULL, repo_path.ptr, wd_path.ptr, opts->flags, opts->mode);
 
                /* TODO: reinitialize the templates */
        }
        else {
                if (!(error = repo_init_structure(
-                               git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts)) &&
+                               repo_path.ptr, wd_path.ptr, opts)) &&
                        !(error = repo_init_config(
-                               git_buf_cstr(&repo_path), git_buf_cstr(&wd_path), opts)))
+                               NULL, repo_path.ptr, wd_path.ptr, opts->flags, opts->mode)))
                        error = repo_init_create_head(
-                               git_buf_cstr(&repo_path), opts->initial_head);
+                               repo_path.ptr, opts->initial_head);
        }
        if (error < 0)
                goto cleanup;
 
-       error = git_repository_open(out, git_buf_cstr(&repo_path));
+       error = git_repository_open(out, repo_path.ptr);
 
        if (!error && opts->origin_url)
                error = repo_init_create_origin(*out, opts->origin_url);
index 0f8f26efbd94a7df31b9934333491b530a553a33..c3abc1f95371888b9e24b3734be4c7a85dc90b3b 100644 (file)
@@ -190,6 +190,9 @@ git_repository *cl_git_sandbox_init(const char *sandbox)
        /* Now open the sandbox repository and make it available for tests */
        cl_git_pass(git_repository_open(&_cl_repo, sandbox));
 
+       /* Adjust configs after copying to new filesystem */
+       cl_git_pass(git_repository_reset_filesystem(_cl_repo));
+
        return _cl_repo;
 }
 
index a5c322b4deaaa2d1c31244e31fb2206c35f82f72..3452f231d6b34face7249a67b2144b22f5623a82 100644 (file)
@@ -21,6 +21,35 @@ git_tree *resolve_commit_oid_to_tree(
        return tree;
 }
 
+static char diff_pick_suffix(int mode)
+{
+       if (S_ISDIR(mode))
+               return '/';
+       else if (GIT_PERMS_IS_EXEC(mode))
+               return '*';
+       else
+               return ' ';
+}
+
+static void fprintf_delta(FILE *fp, const git_diff_delta *delta, float progress)
+{
+       char code = git_diff_status_char(delta->status);
+       char old_suffix = diff_pick_suffix(delta->old_file.mode);
+       char new_suffix = diff_pick_suffix(delta->new_file.mode);
+
+       fprintf(fp, "%c\t%s", code, delta->old_file.path);
+
+       if ((delta->old_file.path != delta->new_file.path &&
+                strcmp(delta->old_file.path, delta->new_file.path) != 0) ||
+               (delta->old_file.mode != delta->new_file.mode &&
+                delta->old_file.mode != 0 && delta->new_file.mode != 0))
+               fprintf(fp, "%c %s%c", old_suffix, delta->new_file.path, new_suffix);
+       else if (old_suffix != ' ')
+               fprintf(fp, "%c", old_suffix);
+
+       fprintf(fp, "\t[%.2f]\n", progress);
+}
+
 int diff_file_cb(
        const git_diff_delta *delta,
        float progress,
@@ -29,9 +58,7 @@ int diff_file_cb(
        diff_expects *e = payload;
 
        if (e->debug)
-               fprintf(stderr, "%c %s (%.3f)\n",
-                       git_diff_status_char(delta->status),
-                       delta->old_file.path, progress);
+               fprintf_delta(stderr, delta, progress);
 
        if (e->names)
                cl_assert_equal_s(e->names[e->files], delta->old_file.path);
@@ -55,8 +82,14 @@ int diff_print_file_cb(
        float progress,
        void *payload)
 {
-       fprintf(stderr, "%c %s\n",
-               git_diff_status_char(delta->status), delta->old_file.path);
+       if (!payload) {
+               fprintf_delta(stderr, delta, progress);
+               return 0;
+       }
+
+       if (!((diff_expects *)payload)->debug)
+               fprintf_delta(stderr, delta, progress);
+
        return diff_file_cb(delta, progress, payload);
 }
 
index 932d720f2def149f1d18b54f01583473136489c9..ea5908475a205446c5700c5c1b2108f5e8c2edf4 100644 (file)
@@ -27,25 +27,25 @@ void test_diff_diffiter__create(void)
        git_diff_list_free(diff);
 }
 
-void test_diff_diffiter__iterate_files(void)
+void test_diff_diffiter__iterate_files_1(void)
 {
        git_repository *repo = cl_git_sandbox_init("attr");
        git_diff_list *diff;
        size_t d, num_d;
-       int count = 0;
+       diff_expects exp = { 0 };
 
        cl_git_pass(git_diff_index_to_workdir(&diff, repo, NULL, NULL));
 
        num_d = git_diff_num_deltas(diff);
-       cl_assert_equal_i(6, (int)num_d);
 
        for (d = 0; d < num_d; ++d) {
                const git_diff_delta *delta;
                cl_git_pass(git_diff_get_patch(NULL, &delta, diff, d));
                cl_assert(delta != NULL);
-               count++;
+
+               diff_file_cb(delta, (float)d / (float)num_d, &exp);
        }
-       cl_assert_equal_i(6, count);
+       cl_assert_equal_sz(6, exp.files);
 
        git_diff_list_free(diff);
 }
index e02dd5c68fbae286e3e75416e111c867b17d728e..719d229fc116f373159629168e80c7cf3aa709ce 100644 (file)
@@ -147,6 +147,13 @@ void test_diff_drivers__long_lines(void)
        cl_git_pass(git_diff_get_patch(&patch, NULL, diff, 0));
        cl_git_pass(git_diff_patch_to_str(&actual, patch));
 
+       /* if chmod not supported, overwrite mode bits since anything is possible */
+       if (!cl_is_chmod_supported()) {
+               size_t actual_len = strlen(actual);
+               if (actual_len > 72 && memcmp(&actual[66], "100644", 6) != 0)
+                       memcpy(&actual[66], "100644", 6);
+       }
+
        cl_assert_equal_s(expected, actual);
 
        free(actual);
index 6a33fa9901e067ff66c78224c7edc2bc4e2ccf3a..7aab8f409b18a621a6c923225f14800d1678dc7e 100644 (file)
@@ -238,6 +238,9 @@ void test_diff_patch__hunks_have_correct_line_numbers(void)
 
        cl_git_pass(git_config_new(&cfg));
        git_repository_set_config(g_repo, cfg);
+       git_config_free(cfg);
+
+       git_repository_reset_filesystem(g_repo);
 
        cl_git_pass(
                git_futils_readbuffer(&old_content, "renames/songof7cities.txt"));
@@ -408,7 +411,6 @@ void test_diff_patch__hunks_have_correct_line_numbers(void)
        git_buf_free(&actual);
        git_buf_free(&old_content);
        git_tree_free(head);
-       git_config_free(cfg);
 }
 
 static void check_single_patch_stats(
@@ -520,6 +522,9 @@ void test_diff_patch__line_counts_with_eofnl(void)
 
        cl_git_pass(git_config_new(&cfg));
        git_repository_set_config(g_repo, cfg);
+       git_config_free(cfg);
+
+       git_repository_reset_filesystem(g_repo);
 
        cl_git_pass(git_futils_readbuffer(&content, "renames/songof7cities.txt"));
 
@@ -574,5 +579,4 @@ void test_diff_patch__line_counts_with_eofnl(void)
                g_repo, 1, 1, 1, 6, expected_sizes, expected);
 
        git_buf_free(&content);
-       git_config_free(cfg);
 }
index 02f83efba5a46c2647412728cdfbc27de5900120..8cbd6ff3a959a36eab0d32ef5da6885f8c9106b8 100644 (file)
@@ -51,18 +51,24 @@ static void replace_file_with_mode(
        git_buf_free(&content);
 }
 
-static void add_and_check_mode(
-       git_index *index, const char *filename, unsigned int expect_mode)
+#define add_and_check_mode(I,F,X) add_and_check_mode_(I,F,X,__FILE__,__LINE__)
+
+static void add_and_check_mode_(
+       git_index *index, const char *filename, unsigned int expect_mode,
+       const char *file, int line)
 {
        size_t pos;
        const git_index_entry *entry;
 
        cl_git_pass(git_index_add_bypath(index, filename));
 
-       cl_assert(!git_index_find(&pos, index, filename));
+       clar__assert(!git_index_find(&pos, index, filename),
+               file, line, "Cannot find index entry", NULL, 1);
 
        entry = git_index_get_byindex(index, pos);
-       cl_assert(entry->mode == expect_mode);
+
+       clar__assert_equal(file, line, "Expected mode does not match index",
+               1, "%07o", (unsigned int)entry->mode, (unsigned int)expect_mode);
 }
 
 void test_index_filemodes__untrusted(void)
@@ -91,16 +97,16 @@ void test_index_filemodes__untrusted(void)
        replace_file_with_mode("exec_on", "filemodes/exec_on.1", 0755);
        add_and_check_mode(index, "exec_on", GIT_FILEMODE_BLOB_EXECUTABLE);
 
-       /*  5 - add new 0644 -> expect 0644 */
-       cl_git_write2file("filemodes/new_off", "blah", 0,
-               O_WRONLY | O_CREAT | O_TRUNC, 0644);
-       add_and_check_mode(index, "new_off", GIT_FILEMODE_BLOB);
-
-       /* this test won't give predictable results on a platform
-        * that doesn't support filemodes correctly, so skip it.
+       /* these tests of newly added files won't give predictable results on
+        * filesystems without actual filemode support, so skip them.
         */
        if (can_filemode) {
-               /* 6 - add 0755 -> expect 0755 */
+               /*  5 - add new 0644 -> expect 0644 */
+               cl_git_write2file("filemodes/new_off", "blah", 0,
+                       O_WRONLY | O_CREAT | O_TRUNC, 0644);
+               add_and_check_mode(index, "new_off", GIT_FILEMODE_BLOB);
+
+               /* 6 - add new 0755 -> expect 0755 */
                cl_git_write2file("filemodes/new_on", "blah", 0,
                        O_WRONLY | O_CREAT | O_TRUNC, 0755);
                add_and_check_mode(index, "new_on", GIT_FILEMODE_BLOB_EXECUTABLE);