forked from Mirrors/flatpak-builder
434 lines
13 KiB
C
434 lines
13 KiB
C
#include "config.h"
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#include <locale.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include "libgsystem.h"
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#include "xdg-app-builtins.h"
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#include "xdg-app-utils.h"
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static char *opt_arch;
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static char *opt_branch;
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static char *opt_command;
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static gboolean opt_devel;
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static GOptionEntry options[] = {
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{ "arch", 0, 0, G_OPTION_ARG_STRING, &opt_arch, "Arch to use", "ARCH" },
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{ "command", 0, 0, G_OPTION_ARG_STRING, &opt_command, "Command to run", "COMMAND" },
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{ "branch", 0, 0, G_OPTION_ARG_STRING, &opt_branch, "Branch to use", "BRANCH" },
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{ "devel", 'd', 0, G_OPTION_ARG_NONE, &opt_devel, "Use development runtime", NULL },
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{ NULL }
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};
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static char *
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extract_unix_path_from_dbus_address (const char *address)
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{
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const char *path, *path_end;
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if (address == NULL)
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return NULL;
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if (!g_str_has_prefix (address, "unix:"))
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return NULL;
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path = strstr (address, "path=");
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if (path == NULL)
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return NULL;
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path += strlen ("path=");
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path_end = path;
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while (*path_end != 0 && *path_end != ',')
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path_end++;
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return g_strndup (path, path_end - path);
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}
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void
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xdg_app_run_add_x11_args (GPtrArray *argv_array)
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{
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char *x11_socket = NULL;
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const char *display = g_getenv ("DISPLAY");
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if (display && display[0] == ':' && g_ascii_isdigit (display[1]))
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{
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const char *display_nr = &display[1];
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const char *display_nr_end = display_nr;
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gs_free char *d = NULL;
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while (g_ascii_isdigit (*display_nr_end))
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display_nr_end++;
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d = g_strndup (display_nr, display_nr_end - display_nr);
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x11_socket = g_strdup_printf ("/tmp/.X11-unix/X%s", d);
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g_ptr_array_add (argv_array, g_strdup ("-x"));
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g_ptr_array_add (argv_array, x11_socket);
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}
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}
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void
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xdg_app_run_add_wayland_args (GPtrArray *argv_array)
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{
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char *wayland_socket = g_build_filename (g_get_user_runtime_dir (), "wayland-0", NULL);
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if (g_file_test (wayland_socket, G_FILE_TEST_EXISTS))
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{
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g_ptr_array_add (argv_array, g_strdup ("-y"));
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g_ptr_array_add (argv_array, wayland_socket);
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}
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else
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g_free (wayland_socket);
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}
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void
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xdg_app_run_add_no_x11_args (GPtrArray *argv_array)
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{
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g_unsetenv ("DISPLAY");
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}
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void
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xdg_app_run_add_pulseaudio_args (GPtrArray *argv_array)
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{
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char *pulseaudio_socket = g_build_filename (g_get_user_runtime_dir (), "pulse/native", NULL);
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if (g_file_test (pulseaudio_socket, G_FILE_TEST_EXISTS))
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{
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g_ptr_array_add (argv_array, g_strdup ("-p"));
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g_ptr_array_add (argv_array, pulseaudio_socket);
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}
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}
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void
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xdg_app_run_add_system_dbus_args (GPtrArray *argv_array)
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{
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const char *dbus_address = g_getenv ("DBUS_SYSTEM_BUS_ADDRESS");
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char *dbus_system_socket = NULL;
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dbus_system_socket = extract_unix_path_from_dbus_address (dbus_address);
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if (dbus_system_socket == NULL &&
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g_file_test ("/var/run/dbus/system_bus_socket", G_FILE_TEST_EXISTS))
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{
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dbus_system_socket = g_strdup ("/var/run/dbus/system_bus_socket");
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}
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if (dbus_system_socket != NULL)
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{
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g_ptr_array_add (argv_array, g_strdup ("-D"));
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g_ptr_array_add (argv_array, dbus_system_socket);
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}
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}
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void
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xdg_app_run_add_session_dbus_args (GPtrArray *argv_array)
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{
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const char *dbus_address = g_getenv ("DBUS_SESSION_BUS_ADDRESS");
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char *dbus_session_socket = NULL;
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dbus_session_socket = extract_unix_path_from_dbus_address (dbus_address);
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if (dbus_session_socket != NULL)
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{
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g_ptr_array_add (argv_array, g_strdup ("-d"));
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g_ptr_array_add (argv_array, dbus_session_socket);
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}
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}
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static void
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add_extension_arg (const char *directory,
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const char *type, const char *extension, const char *arch, const char *branch,
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GPtrArray *argv_array, GCancellable *cancellable)
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{
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gs_free char *extension_ref;
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gs_unref_object GFile *deploy = NULL;
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gs_free char *full_directory = NULL;
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gboolean is_app;
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is_app = strcmp (type, "app") == 0;
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full_directory = g_build_filename (is_app ? "/self" : "/usr", directory, NULL);
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extension_ref = g_build_filename (type, extension, arch, branch, NULL);
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deploy = xdg_app_find_deploy_dir_for_ref (extension_ref, cancellable, NULL);
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if (deploy != NULL)
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{
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gs_unref_object GFile *files = g_file_get_child (deploy, "files");
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g_ptr_array_add (argv_array, g_strdup ("-b"));
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g_ptr_array_add (argv_array, g_strdup_printf ("%s=%s", full_directory, gs_file_get_path_cached (files)));
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}
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}
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static gboolean
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add_extension_args (GKeyFile *metakey, const char *full_ref,
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GPtrArray *argv_array, GCancellable *cancellable, GError **error)
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{
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gs_strfreev gchar **groups = NULL;
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gs_strfreev gchar **parts = NULL;
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gboolean ret = FALSE;
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int i;
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ret = TRUE;
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parts = g_strsplit (full_ref, "/", 0);
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if (g_strv_length (parts) != 4)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to determine parts from ref: %s", full_ref);
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goto out;
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}
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groups = g_key_file_get_groups (metakey, NULL);
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for (i = 0; groups[i] != NULL; i++)
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{
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char *extension;
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if (g_str_has_prefix (groups[i], "Extension ") &&
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*(extension = (groups[i] + strlen ("Extension "))) != 0)
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{
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gs_free char *directory = g_key_file_get_string (metakey, groups[i], "directory", NULL);
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if (directory == NULL)
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continue;
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if (g_key_file_get_boolean (metakey, groups[i],
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"subdirectories", NULL))
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{
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gs_free char *prefix = g_strconcat (extension, ".", NULL);
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gs_strfreev char **refs = NULL;
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int i;
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refs = xdg_app_list_deployed_refs (parts[0], prefix, parts[2], parts[3],
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cancellable, error);
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if (refs == NULL)
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goto out;
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for (i = 0; refs[i] != NULL; i++)
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{
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gs_free char *extended_dir = g_build_filename (directory, refs[i] + strlen (prefix), NULL);
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add_extension_arg (extended_dir, parts[0], refs[i], parts[2], parts[3],
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argv_array, cancellable);
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}
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}
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else
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add_extension_arg (directory, parts[0], extension, parts[2], parts[3],
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argv_array, cancellable);
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}
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}
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ret = TRUE;
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out:
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return ret;
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}
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gboolean
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xdg_app_builtin_run (int argc, char **argv, GCancellable *cancellable, GError **error)
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{
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GOptionContext *context;
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gboolean ret = FALSE;
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gs_unref_object XdgAppDir *user_dir = NULL;
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gs_unref_variant_builder GVariantBuilder *optbuilder = NULL;
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gs_unref_object GFile *deploy_base = NULL;
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gs_unref_object GFile *var = NULL;
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gs_unref_object GFile *var_tmp = NULL;
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gs_unref_object GFile *var_run = NULL;
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gs_unref_object GFile *app_deploy = NULL;
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gs_unref_object GFile *app_files = NULL;
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gs_unref_object GFile *runtime_deploy = NULL;
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gs_unref_object GFile *runtime_files = NULL;
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gs_unref_object GFile *metadata = NULL;
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gs_unref_object GFile *runtime_metadata = NULL;
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gs_free char *metadata_contents = NULL;
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gs_free char *runtime_metadata_contents = NULL;
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gs_free char *runtime = NULL;
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gs_free char *default_command = NULL;
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gs_free char *runtime_ref = NULL;
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gs_free char *app_ref = NULL;
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gs_free char *path = NULL;
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gs_unref_keyfile GKeyFile *metakey = NULL;
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gs_unref_keyfile GKeyFile *runtime_metakey = NULL;
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gs_free_error GError *my_error = NULL;
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gs_free_error GError *my_error2 = NULL;
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gs_unref_ptrarray GPtrArray *argv_array = NULL;
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gsize metadata_size, runtime_metadata_size;
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const char *app;
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const char *branch = "master";
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const char *command = "/bin/sh";
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int i;
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int rest_argv_start, rest_argc;
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context = g_option_context_new ("APP [args...] - Run an app");
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rest_argc = 0;
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for (i = 1; i < argc; i++)
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{
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/* The non-option is the command, take it out of the arguments */
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if (argv[i][0] != '-')
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{
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rest_argv_start = i;
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rest_argc = argc - i;
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argc = i;
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break;
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}
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}
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if (!xdg_app_option_context_parse (context, options, &argc, &argv, XDG_APP_BUILTIN_FLAG_NO_DIR, NULL, cancellable, error))
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goto out;
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if (rest_argc == 0)
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{
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usage_error (context, "APP must be specified", error);
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goto out;
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}
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app = argv[rest_argv_start];
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if (opt_branch)
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branch = opt_branch;
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app_ref = xdg_app_build_app_ref (app, branch, opt_arch);
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user_dir = xdg_app_dir_get_user ();
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app_deploy = xdg_app_find_deploy_dir_for_ref (app_ref, cancellable, error);
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if (app_deploy == NULL)
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goto out;
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path = g_file_get_path (app_deploy);
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g_debug ("Running application in %s", path);
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metadata = g_file_get_child (app_deploy, "metadata");
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if (!g_file_load_contents (metadata, cancellable, &metadata_contents, &metadata_size, NULL, error))
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goto out;
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metakey = g_key_file_new ();
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if (!g_key_file_load_from_data (metakey, metadata_contents, metadata_size, 0, error))
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goto out;
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argv_array = g_ptr_array_new_with_free_func (g_free);
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g_ptr_array_add (argv_array, g_strdup (HELPER));
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if (!add_extension_args (metakey, app_ref, argv_array, cancellable, error))
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goto out;
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runtime = g_key_file_get_string (metakey, "Application", opt_devel ? "sdk" : "runtime", error);
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if (*error)
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goto out;
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runtime_ref = g_build_filename ("runtime", runtime, NULL);
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runtime_deploy = xdg_app_find_deploy_dir_for_ref (runtime_ref, cancellable, error);
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if (runtime_deploy == NULL)
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goto out;
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g_free (path);
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path = g_file_get_path (runtime_deploy);
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g_debug ("Using runtime in %s", path);
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runtime_metadata = g_file_get_child (runtime_deploy, "metadata");
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if (g_file_load_contents (runtime_metadata, cancellable, &runtime_metadata_contents, &runtime_metadata_size, NULL, NULL))
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{
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runtime_metakey = g_key_file_new ();
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if (!g_key_file_load_from_data (runtime_metakey, runtime_metadata_contents, runtime_metadata_size, 0, error))
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goto out;
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if (!add_extension_args (runtime_metakey, runtime_ref, argv_array, cancellable, error))
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goto out;
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}
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if (!xdg_app_dir_ensure_path (user_dir, cancellable, error))
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goto out;
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var = xdg_app_dir_get_app_data (user_dir, app);
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if (!gs_file_ensure_directory (var, TRUE, cancellable, error))
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goto out;
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var_tmp = g_file_get_child (var, "tmp");
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var_run = g_file_get_child (var, "run");
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if (!g_file_make_symbolic_link (var_tmp, "/tmp", cancellable, &my_error) &&
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!g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
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{
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g_propagate_error (error, my_error);
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my_error = NULL;
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goto out;
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}
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if (!g_file_make_symbolic_link (var_run, "/run", cancellable, &my_error2) &&
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!g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
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{
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g_propagate_error (error, my_error2);
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my_error2 = NULL;
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goto out;
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}
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app_files = g_file_get_child (app_deploy, "files");
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runtime_files = g_file_get_child (runtime_deploy, "files");
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default_command = g_key_file_get_string (metakey, "Application", "command", error);
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if (*error)
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goto out;
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if (opt_command)
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command = opt_command;
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else
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command = default_command;
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if (g_key_file_get_boolean (metakey, "Environment", "ipc", NULL))
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g_ptr_array_add (argv_array, g_strdup ("-i"));
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if (g_key_file_get_boolean (metakey, "Environment", "host-fs", NULL))
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g_ptr_array_add (argv_array, g_strdup ("-f"));
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if (g_key_file_get_boolean (metakey, "Environment", "homedir", NULL))
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g_ptr_array_add (argv_array, g_strdup ("-H"));
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if (g_key_file_get_boolean (metakey, "Environment", "network", NULL))
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g_ptr_array_add (argv_array, g_strdup ("-n"));
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if (g_key_file_get_boolean (metakey, "Environment", "x11", NULL))
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xdg_app_run_add_x11_args (argv_array);
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else
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xdg_app_run_add_no_x11_args (argv_array);
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if (g_key_file_get_boolean (metakey, "Environment", "wayland", NULL))
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xdg_app_run_add_wayland_args (argv_array);
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if (g_key_file_get_boolean (metakey, "Environment", "pulseaudio", NULL))
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xdg_app_run_add_pulseaudio_args (argv_array);
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if (g_key_file_get_boolean (metakey, "Environment", "system-dbus", NULL))
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xdg_app_run_add_system_dbus_args (argv_array);
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if (g_key_file_get_boolean (metakey, "Environment", "session-dbus", NULL))
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xdg_app_run_add_session_dbus_args (argv_array);
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g_ptr_array_add (argv_array, g_strdup ("-a"));
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g_ptr_array_add (argv_array, g_file_get_path (app_files));
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g_ptr_array_add (argv_array, g_strdup ("-v"));
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g_ptr_array_add (argv_array, g_file_get_path (var));
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g_ptr_array_add (argv_array, g_file_get_path (runtime_files));
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g_ptr_array_add (argv_array, g_strdup (command));
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for (i = 1; i < rest_argc; i++)
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g_ptr_array_add (argv_array, g_strdup (argv[rest_argv_start + i]));
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g_ptr_array_add (argv_array, NULL);
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g_setenv ("XDG_DATA_DIRS", "/self/share:/usr/share", TRUE);
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g_unsetenv ("LD_LIBRARY_PATH");
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g_setenv ("PATH", "/self/bin:/usr/bin", TRUE);
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if (execv (HELPER, (char **)argv_array->pdata) == -1)
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{
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g_set_error (error, G_IO_ERROR, g_io_error_from_errno (errno), "Unable to start app");
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goto out;
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}
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/* Not actually reached... */
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ret = TRUE;
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out:
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if (context)
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g_option_context_free (context);
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return ret;
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}
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