forked from Mirrors/flatpak-builder
261 lines
7.9 KiB
C
261 lines
7.9 KiB
C
/*
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* Copyright © 2014 Red Hat, Inc
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Alexander Larsson <alexl@redhat.com>
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*/
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#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 "libglnx/libglnx.h"
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#include "flatpak-builtins.h"
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#include "flatpak-utils.h"
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#include "flatpak-run.h"
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static gboolean opt_runtime;
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static char *opt_build_dir;
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static char **opt_bind_mounts;
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static GOptionEntry options[] = {
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{ "runtime", 'r', 0, G_OPTION_ARG_NONE, &opt_runtime, "Use non-devel runtime", NULL },
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{ "bind-mount", 0, 0, G_OPTION_ARG_STRING_ARRAY, &opt_bind_mounts, "Add bind mount", "DEST=SRC" },
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{ "build-dir", 0, 0, G_OPTION_ARG_STRING, &opt_build_dir, "Start build in this directory", "DIR" },
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{ NULL }
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};
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static void
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add_args (GPtrArray *argv_array, ...)
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{
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va_list args;
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const gchar *arg;
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va_start (args, argv_array);
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while ((arg = va_arg (args, const gchar *)))
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g_ptr_array_add (argv_array, g_strdup (arg));
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va_end (args);
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}
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gboolean
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flatpak_builtin_build (int argc, char **argv, GCancellable *cancellable, GError **error)
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{
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g_autoptr(GOptionContext) context = NULL;
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g_autoptr(FlatpakDeploy) runtime_deploy = NULL;
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g_autoptr(GFile) var = NULL;
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g_autoptr(GFile) usr = NULL;
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g_autoptr(GFile) app_deploy = NULL;
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g_autoptr(GFile) app_files = NULL;
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g_autoptr(GFile) runtime_files = NULL;
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g_autoptr(GFile) metadata = NULL;
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g_autofree char *metadata_contents = NULL;
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g_autofree char *runtime = NULL;
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g_autofree char *runtime_ref = NULL;
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g_autoptr(GKeyFile) metakey = NULL;
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g_autoptr(GKeyFile) runtime_metakey = NULL;
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g_autoptr(GPtrArray) argv_array = NULL;
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g_auto(GStrv) envp = NULL;
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gsize metadata_size;
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const char *directory = NULL;
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const char *command = "/bin/sh";
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g_autofree char *app_id = NULL;
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int i;
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int rest_argv_start, rest_argc;
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g_autoptr(FlatpakContext) arg_context = NULL;
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g_autoptr(FlatpakContext) app_context = NULL;
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gboolean custom_usr;
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g_auto(GStrv) runtime_ref_parts = NULL;
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context = g_option_context_new ("DIRECTORY [COMMAND [args...]] - Build in directory");
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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 directory, 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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arg_context = flatpak_context_new ();
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g_option_context_add_group (context, flatpak_context_get_options (arg_context));
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if (!flatpak_option_context_parse (context, options, &argc, &argv, FLATPAK_BUILTIN_FLAG_NO_DIR, NULL, cancellable, error))
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return FALSE;
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if (rest_argc == 0)
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return usage_error (context, "DIRECTORY must be specified", error);
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directory = argv[rest_argv_start];
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if (rest_argc >= 2)
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command = argv[rest_argv_start + 1];
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app_deploy = g_file_new_for_commandline_arg (directory);
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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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return FALSE;
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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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return FALSE;
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app_id = g_key_file_get_string (metakey, "Application", "name", error);
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if (app_id == NULL)
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return FALSE;
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runtime = g_key_file_get_string (metakey, "Application", opt_runtime ? "runtime" : "sdk", error);
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if (runtime == NULL)
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return FALSE;
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runtime_ref = g_build_filename ("runtime", runtime, NULL);
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runtime_ref_parts = flatpak_decompose_ref (runtime_ref, error);
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if (runtime_ref_parts == NULL)
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return FALSE;
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runtime_deploy = flatpak_find_deploy_for_ref (runtime_ref, cancellable, error);
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if (runtime_deploy == NULL)
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return FALSE;
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runtime_metakey = flatpak_deploy_get_metadata (runtime_deploy);
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var = g_file_get_child (app_deploy, "var");
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if (!gs_file_ensure_directory (var, TRUE, cancellable, error))
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return FALSE;
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app_files = g_file_get_child (app_deploy, "files");
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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 (flatpak_get_bwrap ()));
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custom_usr = FALSE;
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usr = g_file_get_child (app_deploy, "usr");
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if (g_file_query_exists (usr, cancellable))
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{
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custom_usr = TRUE;
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runtime_files = g_object_ref (usr);
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}
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else
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{
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runtime_files = flatpak_deploy_get_files (runtime_deploy);
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}
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add_args (argv_array,
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custom_usr ? "--bind" : "--ro-bind", gs_file_get_path_cached (runtime_files), "/usr",
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"--bind", gs_file_get_path_cached (app_files), "/app",
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NULL);
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if (!flatpak_run_setup_base_argv (argv_array, NULL, runtime_files, NULL, runtime_ref_parts[2],
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FLATPAK_RUN_FLAG_DEVEL | FLATPAK_RUN_FLAG_NO_SESSION_HELPER,
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error))
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return FALSE;
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/* After setup_base to avoid conflicts with /var symlinks */
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add_args (argv_array,
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"--bind", gs_file_get_path_cached (var), "/var",
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NULL);
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app_context = flatpak_context_new ();
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if (!flatpak_context_load_metadata (app_context, runtime_metakey, error))
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return FALSE;
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if (!flatpak_context_load_metadata (app_context, metakey, error))
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return FALSE;
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flatpak_context_allow_host_fs (app_context);
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flatpak_context_merge (app_context, arg_context);
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envp = flatpak_run_get_minimal_env (TRUE);
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envp = flatpak_run_apply_env_vars (envp, app_context);
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flatpak_run_add_environment_args (argv_array, NULL, &envp, NULL, NULL, app_id,
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app_context, NULL);
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if (!custom_usr &&
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!flatpak_run_add_extension_args (argv_array, runtime_metakey, runtime_ref, cancellable, error))
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return FALSE;
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for (i = 0; opt_bind_mounts != NULL && opt_bind_mounts[i] != NULL; i++)
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{
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char *split = strchr (opt_bind_mounts[i], '=');
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if (split == NULL)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT, "Missing '=' in bind mount option '%s'", opt_bind_mounts[i]);
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return FALSE;
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}
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*split++ = 0;
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add_args (argv_array,
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"--bind", split, opt_bind_mounts[i],
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NULL);
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}
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if (opt_build_dir != NULL)
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{
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add_args (argv_array,
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"--chdir", opt_build_dir,
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NULL);
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}
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g_ptr_array_add (argv_array, g_strdup (command));
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for (i = 2; 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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if (execve (flatpak_get_bwrap (), (char **) argv_array->pdata, envp) == -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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return FALSE;
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}
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/* Not actually reached... */
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return TRUE;
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}
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gboolean
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flatpak_complete_build (FlatpakCompletion *completion)
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{
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g_autoptr(GOptionContext) context = NULL;
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context = g_option_context_new ("");
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if (!flatpak_option_context_parse (context, options, &completion->argc, &completion->argv,
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FLATPAK_BUILTIN_FLAG_NO_DIR, NULL, NULL, NULL))
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return FALSE;
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switch (completion->argc)
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{
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case 0:
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case 1: /* DIR */
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flatpak_complete_options (completion, global_entries);
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flatpak_complete_options (completion, options);
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flatpak_complete_dir (completion);
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break;
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}
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return TRUE;
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}
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