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common: Report the age of the configuration

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This change will allow applications to determine if their data
is older than the flatpak configuration, to aid cache invalidation.
This commit is contained in:
Gordon Messmer
2026-03-14 20:23:31 -07:00
committed by Sebastian Wick
parent 43642337e4
commit fffe38a2b0
4 changed files with 81 additions and 0 deletions
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35
common/flatpak-installation.c
View File

@@ -2675,6 +2675,41 @@ flatpak_installation_create_monitor (FlatpakInstallation *self,
cancellable, error);
}
/**
* flatpak_installation_get_timestamp:
* @self: a #FlatpakInstallation
*
* Gets the modification time of the installation, based on the file monitored by
* flatpak_installation_create_monitor(). This can be used to detect when
* applications or runtimes have been installed, uninstalled, or updated, or when
* remotes have been added, removed, or modified, to aid cache invalidation.
*
* Returns: the modification time (seconds since the Unix epoch) of the
* installation configuration, or %G_MAXUINT64 if unavailable
*
* Since: 1.18.0
*/
guint64
flatpak_installation_get_timestamp (FlatpakInstallation *self)
{
g_autoptr(FlatpakDir) dir = NULL;
g_autoptr(GFile) changed_file = NULL;
g_autoptr(GFileInfo) info = NULL;
dir = flatpak_installation_get_dir_maybe_no_repo (self);
changed_file = flatpak_dir_get_changed_path (dir);
info = g_file_query_info (changed_file,
G_FILE_ATTRIBUTE_TIME_MODIFIED,
G_FILE_QUERY_INFO_NONE,
NULL,
NULL);
if (info == NULL)
return G_MAXUINT64;
return g_file_info_get_attribute_uint64 (info, G_FILE_ATTRIBUTE_TIME_MODIFIED);
}
/**
* flatpak_installation_list_remote_related_refs_sync:

1
common/flatpak-installation.h
View File

@@ -236,6 +236,7 @@ FLATPAK_EXTERN gboolean flatpak_installation_launch_full (FlatpakIns
FLATPAK_EXTERN GFileMonitor *flatpak_installation_create_monitor (FlatpakInstallation *self,
GCancellable *cancellable,
GError **error);
FLATPAK_EXTERN guint64 flatpak_installation_get_timestamp (FlatpakInstallation *self);
FLATPAK_EXTERN GPtrArray *flatpak_installation_list_installed_refs (FlatpakInstallation *self,
GCancellable *cancellable,
GError **error);

1
doc/reference/flatpak-sections.txt
View File

@@ -10,6 +10,7 @@ flatpak_installation_new_for_path
flatpak_installation_get_is_user
flatpak_installation_get_path
flatpak_installation_create_monitor
flatpak_installation_get_timestamp
flatpak_installation_install
flatpak_installation_install_full
flatpak_installation_update

44
tests/testlibrary.c
View File

@@ -546,6 +546,49 @@ test_list_remotes (void)
g_assert_cmpuint (remotes2->len, ==, 0);
}
static void
test_timestamp (void)
{
g_autoptr(FlatpakInstallation) inst = NULL;
g_autoptr(GError) error = NULL;
g_autoptr(FlatpakRemote) remote = NULL;
guint64 mtime1, mtime2, mtime3;
inst = flatpak_installation_new_user (NULL, &error);
g_assert_no_error (error);
/* Get initial modification time */
mtime1 = flatpak_installation_get_timestamp (inst);
g_assert_cmpuint (mtime1, <, G_MAXUINT64);
/* Wait at least 1 second */
sleep (1);
/* Modification time should stay the same when nothing changes */
mtime2 = flatpak_installation_get_timestamp (inst);
g_assert_cmpuint (mtime2, ==, mtime1);
/* Modifying a remote should update the modification time */
remote = flatpak_installation_get_remote_by_name (inst, repo_name, NULL, &error);
g_assert_no_error (error);
g_assert_nonnull (remote);
flatpak_remote_set_disabled (remote, TRUE);
flatpak_installation_modify_remote (inst, remote, NULL, &error);
g_assert_no_error (error);
/* Need to drop caches to see the new modification time */
flatpak_installation_drop_caches (inst, NULL, NULL);
mtime3 = flatpak_installation_get_timestamp (inst);
g_assert_cmpuint (mtime3, >, mtime2);
/* Restore the remote state */
flatpak_remote_set_disabled (remote, FALSE);
flatpak_installation_modify_remote (inst, remote, NULL, &error);
g_assert_no_error (error);
}
static void
test_remote_by_name (void)
{
@@ -5088,6 +5131,7 @@ main (int argc, char *argv[])
g_test_add_func ("/library/arches", test_arches);
g_test_add_func ("/library/ref", test_ref);
g_test_add_func ("/library/list-remotes", test_list_remotes);
g_test_add_func ("/library/timestamp", test_timestamp);
g_test_add_func ("/library/remote-by-name", test_remote_by_name);
g_test_add_func ("/library/remote", test_remote);
g_test_add_func ("/library/remote-new", test_remote_new);