1 files changed, 335 insertions, 0 deletions
diff --git a/lib/gs-os-release.c b/lib/gs-os-release.c
new file mode 100644
index 0000000..305c5bb
--- /dev/null
+++ b/lib/gs-os-release.c
@@ -0,0 +1,335 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ * vi:set noexpandtab tabstop=8 shiftwidth=8:
+ *
+ * Copyright (C) 2016 Kalev Lember <klember@redhat.com>
+ * Copyright (C) 2016 Richard Hughes <richard@hughsie.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+/**
+ * SECTION:gs-os-release
+ * @title: GsOsRelease
+ * @include: gnome-software.h
+ * @stability: Unstable
+ * @short_description: Data from os-release
+ *
+ * This object allows plugins to parse /etc/os-release for distribution
+ * metadata information.
+ */
+
+#include "config.h"
+
+#include <glib.h>
+
+#include "gs-os-release.h"
+
+struct _GsOsRelease
+{
+	GObject			 parent_instance;
+	gchar			*name;
+	gchar			*version;
+	gchar			*id;
+	gchar			**id_like;
+	gchar			*version_id;
+	gchar			*pretty_name;
+	gchar			*cpe_name;
+	gchar			*distro_codename;
+	gchar			*home_url;
+};
+
+static void gs_os_release_initable_iface_init (GInitableIface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GsOsRelease, gs_os_release, G_TYPE_OBJECT,
+			 G_IMPLEMENT_INTERFACE(G_TYPE_INITABLE, gs_os_release_initable_iface_init))
+
+static gboolean
+gs_os_release_initable_init (GInitable *initable,
+			     GCancellable *cancellable,
+			     GError **error)
+{
+	GsOsRelease *os_release = GS_OS_RELEASE (initable);
+	const gchar *filename;
+	g_autofree gchar *data = NULL;
+	g_auto(GStrv) lines = NULL;
+	guint i;
+
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), FALSE);
+	g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+	/* get contents */
+	filename = g_getenv ("GS_SELF_TEST_OS_RELEASE_FILENAME");
+	if (filename == NULL) {
+		filename = "/etc/os-release";
+		if (!g_file_test (filename, G_FILE_TEST_EXISTS))
+			filename = "/usr/lib/os-release";
+	}
+	if (!g_file_get_contents (filename, &data, NULL, error))
+		return FALSE;
+
+	/* parse */
+	lines = g_strsplit (data, "\n", -1);
+	for (i = 0; lines[i] != NULL; i++) {
+		gchar *tmp;
+
+		/* split the line up into two halves */
+		tmp = g_strstr_len (lines[i], -1, "=");
+		if (tmp == NULL)
+			continue;
+		*tmp = '\0';
+		tmp++;
+
+		/* ignore trailing quote */
+		if (tmp[0] == '\"')
+			tmp++;
+
+		/* ignore trailing quote */
+		g_strdelimit (tmp, "\"", '\0');
+
+		/* match fields we're interested in */
+		if (g_strcmp0 (lines[i], "NAME") == 0) {
+			os_release->name = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "VERSION") == 0) {
+			os_release->version = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "ID") == 0) {
+			os_release->id = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "ID_LIKE") == 0) {
+			os_release->id_like = g_strsplit (tmp, " ", 0);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "VERSION_ID") == 0) {
+			os_release->version_id = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "PRETTY_NAME") == 0) {
+			os_release->pretty_name = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "CPE_NAME") == 0) {
+			os_release->cpe_name = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "UBUNTU_CODENAME") == 0) {
+			os_release->distro_codename = g_strdup (tmp);
+			continue;
+		}
+		if (g_strcmp0 (lines[i], "HOME_URL") == 0) {
+			os_release->home_url = g_strdup (tmp);
+			continue;
+		}
+	}
+	return TRUE;
+}
+
+/**
+ * gs_os_release_get_name:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the name from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_name (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->name;
+}
+
+/**
+ * gs_os_release_get_version:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the version from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_version (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->version;
+}
+
+/**
+ * gs_os_release_get_id:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the ID from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_id (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->id;
+}
+
+/**
+ * gs_os_release_get_id_like:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the ID_LIKE from the os-release parser. This is a list of operating
+ * systems that are "closely related" to the local operating system, possibly
+ * by being a derivative distribution.
+ *
+ * Returns: a %NULL terminated list
+ *
+ * Since: 3.26.2
+ **/
+const gchar * const *
+gs_os_release_get_id_like (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return (const gchar * const *) os_release->id_like;
+}
+
+/**
+ * gs_os_release_get_version_id:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the version ID from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_version_id (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->version_id;
+}
+
+/**
+ * gs_os_release_get_pretty_name:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the pretty name from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_pretty_name (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->pretty_name;
+}
+
+/**
+ * gs_os_release_get_cpe_name:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the pretty name from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_cpe_name (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->cpe_name;
+}
+
+/**
+ * gs_os_release_get_distro_codename:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the distro codename from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_distro_codename (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->distro_codename;
+}
+
+/**
+ * gs_os_release_get_home_url:
+ * @os_release: A #GsOsRelease
+ *
+ * Gets the home URL from the os-release parser.
+ *
+ * Returns: a string, or %NULL
+ *
+ * Since: 3.22
+ **/
+const gchar *
+gs_os_release_get_home_url (GsOsRelease *os_release)
+{
+	g_return_val_if_fail (GS_IS_OS_RELEASE (os_release), NULL);
+	return os_release->home_url;
+}
+
+static void
+gs_os_release_finalize (GObject *object)
+{
+	GsOsRelease *os_release = GS_OS_RELEASE (object);
+	g_free (os_release->name);
+	g_free (os_release->version);
+	g_free (os_release->id);
+	g_strfreev (os_release->id_like);
+	g_free (os_release->version_id);
+	g_free (os_release->pretty_name);
+	g_free (os_release->cpe_name);
+	g_free (os_release->distro_codename);
+	g_free (os_release->home_url);
+	G_OBJECT_CLASS (gs_os_release_parent_class)->finalize (object);
+}
+
+static void
+gs_os_release_class_init (GsOsReleaseClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	object_class->finalize = gs_os_release_finalize;
+}
+
+static void
+gs_os_release_initable_iface_init (GInitableIface *iface)
+{
+	iface->init = gs_os_release_initable_init;
+}
+
+static void
+gs_os_release_init (GsOsRelease *os_release)
+{
+}
+
+/**
+ * gs_os_release_new:
+ * @error: a #GError, or %NULL
+ *
+ * Creates a new os_release.
+ *
+ * Returns: (transfer full): A newly allocated #GsOsRelease, or %NULL for error
+ *
+ * Since: 3.22
+ **/
+GsOsRelease *
+gs_os_release_new (GError **error)
+{
+	GsOsRelease *os_release;
+	os_release = g_initable_new (GS_TYPE_OS_RELEASE, NULL, error, NULL);
+	return GS_OS_RELEASE (os_release);
+}