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ostree/tests/test-repo-finder-mount.c
Colin Walters fd98bda3c7 repo: Introduce ostree_repo_open_at() and ostree_repo_create_at() 
This essentially completes our fd-relative conversion.

While here, I cleaned up the semantics of `ostree_repo_create()` and
`ostree_repo_create_at()` to be more atomic - basically various scripts were
testing for the `objects` subdirectory, so let's formalize that.

Closes: #820
Approved by: jlebon
2017-08-15 12:35:10 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright © 2017 Endless Mobile, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* - Philip Withnall <withnall@endlessm.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <glib.h>
#include <glib-object.h>
#include <locale.h>
#include "libostreetest.h"
#include "ostree-autocleanups.h"
#include "ostree-remote-private.h"
#include "ostree-repo-finder.h"
#include "ostree-repo-finder-mount.h"
#include "ostree-types.h"
#include "test-mock-gio.h"
/* Test fixture. Creates a temporary directory and repository. */
typedef struct
{
OstreeRepo *parent_repo;
int working_dfd; /* owned */
GFile *working_dir; /* owned */
} Fixture;
static void
setup (Fixture *fixture,
gconstpointer test_data)
{
g_autofree gchar *tmp_name = NULL;
g_autoptr(GError) error = NULL;
tmp_name = g_strdup ("test-repo-finder-mount-XXXXXX");
glnx_mkdtempat_open_in_system (tmp_name, 0700, &fixture->working_dfd, &error);
g_assert_no_error (error);
g_test_message ("Using temporary directory: %s", tmp_name);
glnx_shutil_mkdir_p_at (fixture->working_dfd, "repo", 0700, NULL, &error);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
g_clear_error (&error);
g_assert_no_error (error);
g_autoptr(GFile) tmp_dir = g_file_new_for_path (g_get_tmp_dir ());
fixture->working_dir = g_file_get_child (tmp_dir, tmp_name);
fixture->parent_repo = ot_test_setup_repo (NULL, &error);
g_assert_no_error (error);
}
static void
teardown (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(GError) error = NULL;
/* Recursively remove the temporary directory. */
glnx_shutil_rm_rf_at (fixture->working_dfd, ".", NULL, NULL);
close (fixture->working_dfd);
fixture->working_dfd = -1;
/* The repo also needs its source files to be removed. This is the inverse
* of setup_test_repository() in libtest.sh. */
int parent_repo_dfd = ostree_repo_get_dfd (fixture->parent_repo);
glnx_shutil_rm_rf_at (parent_repo_dfd, "../files", NULL, NULL);
glnx_shutil_rm_rf_at (parent_repo_dfd, "../repo", NULL, NULL);
g_clear_object (&fixture->working_dir);
g_clear_object (&fixture->parent_repo);
}
/* Test the object constructor works at a basic level. */
static void
test_repo_finder_mount_init (void)
{
g_autoptr(OstreeRepoFinderMount) finder = NULL;
g_autoptr(GVolumeMonitor) monitor = NULL;
/* Default #GVolumeMonitor. */
finder = ostree_repo_finder_mount_new (NULL);
g_clear_object (&finder);
/* Explicit #GVolumeMonitor. */
monitor = ostree_mock_volume_monitor_new (NULL, NULL);
finder = ostree_repo_finder_mount_new (monitor);
g_clear_object (&finder);
}
static void
result_cb (GObject *source_object,
GAsyncResult *result,
gpointer user_data)
{
GAsyncResult **result_out = user_data;
*result_out = g_object_ref (result);
}
/* Test that no remotes are found if the #GVolumeMonitor returns no mounts. */
static void
test_repo_finder_mount_no_mounts (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(OstreeRepoFinderMount) finder = NULL;
g_autoptr(GVolumeMonitor) monitor = NULL;
g_autoptr(GMainContext) context = NULL;
g_autoptr(GAsyncResult) result = NULL;
g_autoptr(GPtrArray) results = NULL; /* (element-type OstreeRepoFinderResult) */
g_autoptr(GError) error = NULL;
const OstreeCollectionRef ref1 = { "org.example.Collection1", "exampleos/x86_64/standard" };
const OstreeCollectionRef ref2 = { "org.example.Collection1", "exampleos/x86_64/buildmaster/standard" };
const OstreeCollectionRef ref3 = { "org.example.Collection2", "exampleos/x86_64/standard" };
const OstreeCollectionRef ref4 = { "org.example.Collection2", "exampleos/arm64/standard" };
const OstreeCollectionRef * const refs[] = { &ref1, &ref2, &ref3, &ref4, NULL };
context = g_main_context_new ();
g_main_context_push_thread_default (context);
monitor = ostree_mock_volume_monitor_new (NULL, NULL);
finder = ostree_repo_finder_mount_new (monitor);
ostree_repo_finder_resolve_async (OSTREE_REPO_FINDER (finder), refs,
fixture->parent_repo,
NULL, result_cb, &result);
while (result == NULL)
g_main_context_iteration (context, TRUE);
results = ostree_repo_finder_resolve_finish (OSTREE_REPO_FINDER (finder),
result, &error);
g_assert_no_error (error);
g_assert_nonnull (results);
g_assert_cmpuint (results->len, ==, 0);
g_main_context_pop_thread_default (context);
}
/* Create a .ostree/repos directory under the given @mount_root, or abort. */
static gboolean
assert_create_repos_dir (Fixture *fixture,
const gchar *mount_root_name,
int *out_repos_dfd,
GMount **out_mount)
{
glnx_fd_close int repos_dfd = -1;
g_autoptr(GError) error = NULL;
g_autofree gchar *path = g_build_filename (mount_root_name, ".ostree", "repos", NULL);
glnx_shutil_mkdir_p_at_open (fixture->working_dfd, path, 0700, &repos_dfd, NULL, &error);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
g_clear_error (&error);
g_assert_no_error (error);
*out_repos_dfd = glnx_steal_fd (&repos_dfd);
g_autoptr(GFile) mount_root = g_file_get_child (fixture->working_dir, mount_root_name);
*out_mount = G_MOUNT (ostree_mock_mount_new (mount_root_name, mount_root));
return TRUE;
}
/* Create a new repository in @repo_dir with its collection ID unset, and
* containing the refs given in @... (which must be %NULL-terminated). Each
* #OstreeCollectionRef in @... is followed by a gchar** return address for the
* checksum committed for that ref. Return the new repository. */
static OstreeRepo *
assert_create_remote_va (Fixture *fixture,
GFile *repo_dir,
va_list args)
{
g_autoptr(GError) error = NULL;
g_autoptr(OstreeRepo) repo = ostree_repo_new (repo_dir);
ostree_repo_create (repo, OSTREE_REPO_MODE_ARCHIVE_Z2, NULL, &error);
g_assert_no_error (error);
/* Set up the refs from @.... */
for (const OstreeCollectionRef *ref = va_arg (args, const OstreeCollectionRef *);
ref != NULL;
ref = va_arg (args, const OstreeCollectionRef *))
{
g_autofree gchar *checksum = NULL;
g_autoptr(OstreeMutableTree) mtree = NULL;
g_autoptr(OstreeRepoFile) repo_file = NULL;
gchar **out_checksum = va_arg (args, gchar **);
mtree = ostree_mutable_tree_new ();
ostree_repo_write_dfd_to_mtree (repo, AT_FDCWD, ".", mtree, NULL, NULL, &error);
g_assert_no_error (error);
ostree_repo_write_mtree (repo, mtree, (GFile **) &repo_file, NULL, &error);
g_assert_no_error (error);
ostree_repo_write_commit (repo, NULL /* no parent */, ref->ref_name, ref->ref_name,
NULL /* no metadata */, repo_file, &checksum,
NULL, &error);
g_assert_no_error (error);
if (ref->collection_id != NULL)
ostree_repo_set_collection_ref_immediate (repo, ref, checksum, NULL, &error);
else
ostree_repo_set_ref_immediate (repo, NULL, ref->ref_name, checksum, NULL, &error);
g_assert_no_error (error);
if (out_checksum != NULL)
*out_checksum = g_steal_pointer (&checksum);
}
/* Update the summary. */
ostree_repo_regenerate_summary (repo, NULL /* no metadata */, NULL, &error);
g_assert_no_error (error);
return g_steal_pointer (&repo);
}
static OstreeRepo *
assert_create_repo_dir (Fixture *fixture,
int repos_dfd,
GMount *repos_mount,
const OstreeCollectionRef *ref,
gchar **out_uri,
...) G_GNUC_NULL_TERMINATED;
/* Create a @ref directory under the given @repos_dfd, or abort. Create a new
* repository in it with the refs given in @..., as per assert_create_remote_va().
* Return the URI of the repository. */
static OstreeRepo *
assert_create_repo_dir (Fixture *fixture,
int repos_dfd,
GMount *repos_mount,
const OstreeCollectionRef *ref,
gchar **out_uri,
...)
{
glnx_fd_close int ref_dfd = -1;
g_autoptr(OstreeRepo) repo = NULL;
g_autoptr(GError) error = NULL;
va_list args;
g_autofree gchar *path = g_build_filename (ref->collection_id, ref->ref_name, NULL);
glnx_shutil_mkdir_p_at_open (repos_dfd, path, 0700, &ref_dfd, NULL, &error);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
g_clear_error (&error);
g_assert_no_error (error);
g_autoptr(GFile) mount_root = g_mount_get_root (repos_mount);
g_autoptr(GFile) repos_dir = g_file_get_child (mount_root, ".ostree/repos");
g_autoptr(GFile) repo_dir = g_file_get_child (repos_dir, path);
va_start (args, out_uri);
repo = assert_create_remote_va (fixture, repo_dir, args);
va_end (args);
*out_uri = g_file_get_uri (repo_dir);
return g_steal_pointer (&repo);
}
/* Create a @ref symlink under the given @repos_dfd, pointing to
* @symlink_target, or abort. */
static int
assert_create_repo_symlink (int repos_dfd,
const OstreeCollectionRef *ref,
const gchar *symlink_target_path)
{
glnx_fd_close int symlink_target_dfd = -1;
g_autoptr(GError) error = NULL;
/* The @ref_parent_dir is not necessarily @collection_dir, since @ref may
* contain slashes. */
g_autofree gchar *path = g_build_filename (ref->collection_id, ref->ref_name, NULL);
g_autofree gchar *path_parent = g_path_get_dirname (path);
glnx_shutil_mkdir_p_at (repos_dfd, path_parent, 0700, NULL, &error);
if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_EXISTS))
g_clear_error (&error);
g_assert_no_error (error);
if (TEMP_FAILURE_RETRY (symlinkat (symlink_target_path, repos_dfd, path)) != 0)
{
g_autoptr(GError) error = NULL;
glnx_throw_errno_prefix (&error, "symlinkat");
g_assert_no_error (error);
}
/* Return a dir FD for the symlink target. */
glnx_opendirat (repos_dfd, path, TRUE, &symlink_target_dfd, &error);
g_assert_no_error (error);
return glnx_steal_fd (&symlink_target_dfd);
}
/* Add configuration for a remote named @remote_name, at @remote_uri, with a
* remote collection ID of @collection_id, to the given @repo. */
static void
assert_create_remote_config (OstreeRepo *repo,
const gchar *remote_name,
const gchar *remote_uri,
const gchar *collection_id)
{
g_autoptr(GError) error = NULL;
g_autoptr(GVariant) options = NULL;
if (collection_id != NULL)
options = g_variant_new_parsed ("@a{sv} { 'collection-id': <%s> }",
collection_id);
ostree_repo_remote_add (repo, remote_name, remote_uri, options, NULL, &error);
g_assert_no_error (error);
}
/* Test resolving the refs against a collection of mock volumes, some of which
* are mounted, some of which are removable, some of which contain valid or
* invalid repo information on the file system, etc. */
static void
test_repo_finder_mount_mixed_mounts (Fixture *fixture,
gconstpointer test_data)
{
g_autoptr(OstreeRepoFinderMount) finder = NULL;
g_autoptr(GVolumeMonitor) monitor = NULL;
g_autoptr(GMainContext) context = NULL;
g_autoptr(GAsyncResult) result = NULL;
g_autoptr(GPtrArray) results = NULL; /* (element-type OstreeRepoFinderResult) */
g_autoptr(GError) error = NULL;
g_autoptr(GList) mounts = NULL; /* (element-type OstreeMockMount) */
g_autoptr(GMount) non_removable_mount = NULL;
g_autoptr(GMount) no_repos_mount = NULL;
g_autoptr(GMount) repo1_mount = NULL;
g_autoptr(GMount) repo2_mount = NULL;
g_autoptr(GFile) non_removable_root = NULL;
glnx_fd_close int no_repos_repos = -1;
glnx_fd_close int repo1_repos = -1;
glnx_fd_close int repo2_repos = -1;
g_autoptr(OstreeRepo) repo1_repo_a = NULL, repo1_repo_b = NULL;
g_autoptr(OstreeRepo) repo2_repo_a = NULL;
g_autofree gchar *repo1_repo_a_uri = NULL, *repo1_repo_b_uri = NULL;
g_autofree gchar *repo2_repo_a_uri = NULL;
g_autofree gchar *repo1_ref0_checksum = NULL, *repo1_ref1_checksum = NULL, *repo1_ref2_checksum = NULL;
g_autofree gchar *repo2_ref0_checksum = NULL, *repo2_ref1_checksum = NULL, *repo2_ref2_checksum = NULL;
g_autofree gchar *repo1_ref5_checksum = NULL;
gsize i;
const OstreeCollectionRef ref0 = { "org.example.Collection1", "exampleos/x86_64/ref0" };
const OstreeCollectionRef ref1 = { "org.example.Collection1", "exampleos/x86_64/ref1" };
const OstreeCollectionRef ref2 = { "org.example.Collection1", "exampleos/x86_64/ref2" };
const OstreeCollectionRef ref3 = { "org.example.Collection1", "exampleos/x86_64/ref3" };
const OstreeCollectionRef ref4 = { "org.example.UnconfiguredCollection", "exampleos/x86_64/ref4" };
const OstreeCollectionRef ref5 = { "org.example.Collection3", "exampleos/x86_64/ref0" };
const OstreeCollectionRef * const refs[] = { &ref0, &ref1, &ref2, &ref3, &ref4, &ref5, NULL };
context = g_main_context_new ();
g_main_context_push_thread_default (context);
/* Build the various mock drives/volumes/mounts, and some repositories with
* refs within them. We use "/" under the assumption that it’s on a separate
* file system from /tmp, so it’s an example of a symlink pointing outside
* its mount point. */
non_removable_root = g_file_get_child (fixture->working_dir, "non-removable-mount");
non_removable_mount = G_MOUNT (ostree_mock_mount_new ("non-removable", non_removable_root));
assert_create_repos_dir (fixture, "no-repos-mount", &no_repos_repos, &no_repos_mount);
assert_create_repos_dir (fixture, "repo1-mount", &repo1_repos, &repo1_mount);
repo1_repo_a = assert_create_repo_dir (fixture, repo1_repos, repo1_mount, refs[0], &repo1_repo_a_uri,
refs[0], &repo1_ref0_checksum,
refs[2], &repo1_ref2_checksum,
refs[5], &repo1_ref5_checksum,
NULL);
repo1_repo_b = assert_create_repo_dir (fixture, repo1_repos, repo1_mount, refs[1], &repo1_repo_b_uri,
refs[1], &repo1_ref1_checksum,
NULL);
assert_create_repo_symlink (repo1_repos, refs[2], "ref0"); /* repo1_repo_a */
assert_create_repo_symlink (repo1_repos, refs[5], "../../../org.example.Collection1/exampleos/x86_64/ref0"); /* repo1_repo_a */
assert_create_repos_dir (fixture, "repo2-mount", &repo2_repos, &repo2_mount);
repo2_repo_a = assert_create_repo_dir (fixture, repo2_repos, repo2_mount, refs[0], &repo2_repo_a_uri,
refs[0], &repo2_ref0_checksum,
refs[1], &repo2_ref1_checksum,
refs[2], &repo2_ref2_checksum,
refs[3], NULL,
NULL);
assert_create_repo_symlink (repo2_repos, refs[1], "ref0"); /* repo2_repo_a */
assert_create_repo_symlink (repo2_repos, refs[2], "ref1"); /* repo2_repo_b */
assert_create_repo_symlink (repo2_repos, refs[3], "/");
mounts = g_list_prepend (mounts, non_removable_mount);
mounts = g_list_prepend (mounts, no_repos_mount);
mounts = g_list_prepend (mounts, repo1_mount);
mounts = g_list_prepend (mounts, repo2_mount);
monitor = ostree_mock_volume_monitor_new (mounts, NULL);
finder = ostree_repo_finder_mount_new (monitor);
assert_create_remote_config (fixture->parent_repo, "remote1", "https://nope1", "org.example.Collection1");
assert_create_remote_config (fixture->parent_repo, "remote2", "https://nope2", "org.example.Collection2");
/* don’t configure org.example.UnconfiguredCollection */
assert_create_remote_config (fixture->parent_repo, "remote3", "https://nope3", "org.example.Collection3");
/* Resolve the refs. */
ostree_repo_finder_resolve_async (OSTREE_REPO_FINDER (finder), refs,
fixture->parent_repo,
NULL, result_cb, &result);
while (result == NULL)
g_main_context_iteration (context, TRUE);
results = ostree_repo_finder_resolve_finish (OSTREE_REPO_FINDER (finder),
result, &error);
g_assert_no_error (error);
g_assert_nonnull (results);
g_assert_cmpuint (results->len, ==, 4);
/* Check that the results are correct: the invalid refs should have been
* ignored, and the valid results canonicalised and deduplicated. */
for (i = 0; i < results->len; i++)
{
g_autofree gchar *uri = NULL;
const gchar *keyring;
const OstreeRepoFinderResult *result = g_ptr_array_index (results, i);
uri = g_key_file_get_string (result->remote->options, result->remote->group, "url", &error);
g_assert_no_error (error);
keyring = result->remote->keyring;
if (g_strcmp0 (uri, repo1_repo_a_uri) == 0 &&
g_strcmp0 (keyring, "remote1.trustedkeys.gpg") == 0)
{
g_assert_cmpuint (g_hash_table_size (result->ref_to_checksum), ==, 2);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[0]), ==, repo1_ref0_checksum);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[2]), ==, repo1_ref2_checksum);
}
else if (g_strcmp0 (uri, repo1_repo_a_uri) == 0 &&
g_strcmp0 (keyring, "remote3.trustedkeys.gpg") == 0)
{
g_assert_cmpuint (g_hash_table_size (result->ref_to_checksum), ==, 1);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[5]), ==, repo1_ref5_checksum);
}
else if (g_strcmp0 (uri, repo1_repo_b_uri) == 0 &&
g_strcmp0 (keyring, "remote1.trustedkeys.gpg") == 0)
{
g_assert_cmpuint (g_hash_table_size (result->ref_to_checksum), ==, 1);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[1]), ==, repo1_ref1_checksum);
}
else if (g_strcmp0 (uri, repo2_repo_a_uri) == 0 &&
g_strcmp0 (keyring, "remote1.trustedkeys.gpg") == 0)
{
g_assert_cmpuint (g_hash_table_size (result->ref_to_checksum), ==, 3);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[0]), ==, repo2_ref0_checksum);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[1]), ==, repo2_ref1_checksum);
g_assert_cmpstr (g_hash_table_lookup (result->ref_to_checksum, refs[2]), ==, repo2_ref2_checksum);
}
else
{
g_test_message ("Unknown result ‘%s’ with keyring ‘%s’.",
result->remote->name, result->remote->keyring);
g_assert_not_reached ();
}
}
g_main_context_pop_thread_default (context);
}
int main (int argc, char **argv)
{
setlocale (LC_ALL, "");
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/repo-finder-mount/init", test_repo_finder_mount_init);
g_test_add ("/repo-finder-mount/no-mounts", Fixture, NULL, setup,
test_repo_finder_mount_no_mounts, teardown);
g_test_add ("/repo-finder-mount/mixed-mounts", Fixture, NULL, setup,
test_repo_finder_mount_mixed_mounts, teardown);
return g_test_run();
}
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