forked from Mirrors/flatpak-builder
387 lines
11 KiB
C
387 lines
11 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 <unistd.h>
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#include <string.h>
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#include <ftw.h>
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#include "libgsystem.h"
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#include "libglnx/libglnx.h"
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#include "xdg-app-builtins.h"
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#include "xdg-app-utils.h"
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#include "xdg-app-run.h"
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static char *opt_command;
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static GOptionEntry options[] = {
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{ "command", 0, 0, G_OPTION_ARG_STRING, &opt_command, "Command to set", "COMMAND" },
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{ NULL }
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};
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static gboolean
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export_dir (int source_parent_fd,
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const char *source_name,
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const char *source_relpath,
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int destination_parent_fd,
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const char *destination_name,
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const char *required_prefix,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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int res;
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g_auto(GLnxDirFdIterator) source_iter = {0};
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glnx_fd_close int destination_dfd = -1;
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struct dirent *dent;
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if (!glnx_dirfd_iterator_init_at (source_parent_fd, source_name, FALSE, &source_iter, error))
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goto out;
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do
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res = mkdirat (destination_parent_fd, destination_name, 0777);
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while (G_UNLIKELY (res == -1 && errno == EINTR));
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if (res == -1)
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{
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if (errno != EEXIST)
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{
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glnx_set_error_from_errno (error);
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goto out;
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}
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}
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if (!gs_file_open_dir_fd_at (destination_parent_fd, destination_name,
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&destination_dfd,
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cancellable, error))
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goto out;
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while (TRUE)
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{
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struct stat stbuf;
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g_autofree char *source_printable = NULL;
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if (!glnx_dirfd_iterator_next_dent (&source_iter, &dent, cancellable, error))
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goto out;
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if (dent == NULL)
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break;
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if (fstatat (source_iter.fd, dent->d_name, &stbuf, AT_SYMLINK_NOFOLLOW) == -1)
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{
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if (errno == ENOENT)
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continue;
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else
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{
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glnx_set_error_from_errno (error);
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goto out;
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}
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}
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if (S_ISDIR (stbuf.st_mode))
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{
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g_autofree gchar *child_relpath = g_build_filename(source_relpath, dent->d_name, NULL);
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if (!export_dir (source_iter.fd, dent->d_name, child_relpath, destination_dfd, dent->d_name,
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required_prefix, cancellable, error))
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goto out;
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}
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else if (S_ISREG (stbuf.st_mode))
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{
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source_printable = g_build_filename (source_relpath, dent->d_name, NULL);
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if (!xdg_app_has_name_prefix (dent->d_name, required_prefix))
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{
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g_print ("Not exporting %s, wrong prefix\n", source_printable);
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continue;
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}
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g_print ("Exporting %s\n", source_printable);
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if (!glnx_file_copy_at (source_iter.fd, dent->d_name, &stbuf,
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destination_dfd, dent->d_name,
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GLNX_FILE_COPY_NOXATTRS,
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cancellable,
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error))
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goto out;
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}
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else
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{
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source_printable = g_build_filename (source_relpath, dent->d_name, NULL);
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g_print ("Not exporting non-regular file %s\n", source_printable);
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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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static gboolean
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copy_exports (GFile *source,
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GFile *destination,
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const char *source_prefix,
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const char *required_prefix,
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GCancellable *cancellable,
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GError **error)
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{
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gboolean ret = FALSE;
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if (!gs_file_ensure_directory (destination, TRUE, cancellable, error))
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goto out;
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/* The fds are closed by this call */
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if (!export_dir (AT_FDCWD, gs_file_get_path_cached (source), source_prefix,
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AT_FDCWD, gs_file_get_path_cached (destination),
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required_prefix, cancellable, error))
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goto out;
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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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static gboolean
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collect_exports (GFile *base, const char *app_id, GCancellable *cancellable, GError **error)
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{
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gboolean ret = FALSE;
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g_autoptr(GFile) files = NULL;
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g_autoptr(GFile) export = NULL;
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const char *paths[] = {
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"share/applications", /* Copy desktop files */
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"share/icons/hicolor", /* Icons */
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"share/dbus-1/services", /* D-Bus service files */
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"share/gnome-shell/search-providers", /* Search providers */
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NULL,
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};
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int i;
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files = g_file_get_child (base, "files");
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export = g_file_get_child (base, "export");
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if (!gs_file_ensure_directory (export, TRUE, cancellable, error))
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goto out;
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for (i = 0; paths[i]; i++)
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{
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g_autoptr(GFile) src = NULL;
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src = g_file_resolve_relative_path (files, paths[i]);
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if (g_file_query_exists (src, cancellable))
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{
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g_debug ("Exporting from %s", paths[i]);
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g_autoptr(GFile) dest = NULL;
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g_autoptr(GFile) dest_parent = NULL;
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dest = g_file_resolve_relative_path (export, paths[i]);
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dest_parent = g_file_get_parent (dest);
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g_debug ("Ensuring export/%s parent exists", paths[i]);
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if (!gs_file_ensure_directory (dest_parent, TRUE, cancellable, error))
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goto out;
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g_debug ("Copying from files/%s", paths[i]);
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if (!copy_exports (src, dest, paths[i], app_id, cancellable, error))
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goto out;
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}
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}
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ret = TRUE;
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g_assert_no_error (*error);
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out:
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return ret;
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}
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static gboolean
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update_metadata (GFile *base, XdgAppContext *arg_context, GCancellable *cancellable, GError **error)
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{
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gboolean ret = FALSE;
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g_autoptr(GFile) metadata = NULL;
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g_autofree char *path = NULL;
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g_autoptr(GKeyFile) keyfile = NULL;
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g_autoptr(XdgAppContext) app_context = NULL;
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GError *temp_error = NULL;
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metadata = g_file_get_child (base, "metadata");
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if (!g_file_query_exists (metadata, cancellable))
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goto out;
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path = g_file_get_path (metadata);
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keyfile = g_key_file_new ();
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if (!g_key_file_load_from_file (keyfile, path, G_KEY_FILE_NONE, error))
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goto out;
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if (g_key_file_has_key (keyfile, "Application", "command", NULL))
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{
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g_debug ("Command key is present");
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if (opt_command)
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g_key_file_set_string (keyfile, "Application", "command", opt_command);
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}
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else if (opt_command)
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{
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g_debug ("Using explicitly provided command %s", opt_command);
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g_key_file_set_string (keyfile, "Application", "command", opt_command);
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}
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else
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{
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g_autofree char *command = NULL;
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g_autoptr(GFile) bin_dir = NULL;
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g_autoptr(GFileEnumerator) bin_enum = NULL;
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g_autoptr(GFileInfo) child_info = NULL;
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g_debug ("Looking for executables");
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bin_dir = g_file_resolve_relative_path (base, "files/bin");
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if (g_file_query_exists (bin_dir, cancellable))
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{
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bin_enum = g_file_enumerate_children (bin_dir, G_FILE_ATTRIBUTE_STANDARD_NAME,
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G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
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cancellable, error);
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if (!bin_enum)
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goto out;
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while ((child_info = g_file_enumerator_next_file (bin_enum, cancellable, &temp_error)))
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{
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if (command != NULL)
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{
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g_print ("More than one executable found\n");
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break;
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}
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command = g_strdup (g_file_info_get_name (child_info));
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}
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if (temp_error != NULL)
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goto out;
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}
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if (command)
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{
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g_print ("Using %s as command\n", command);
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g_key_file_set_string (keyfile, "Application", "command", command);
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}
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else
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{
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g_print ("No executable found\n");
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}
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}
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app_context = xdg_app_context_new ();
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if (!xdg_app_context_load_metadata (app_context, keyfile, error))
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goto out;
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xdg_app_context_merge (app_context, arg_context);
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xdg_app_context_save_metadata (app_context, keyfile);
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if (!g_key_file_save_to_file (keyfile, path, error))
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goto out;
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ret = TRUE;
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out:
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if (temp_error != NULL)
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g_propagate_error (error, temp_error);
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return ret;
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}
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gboolean
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xdg_app_builtin_build_finish (int argc, char **argv, GCancellable *cancellable, GError **error)
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{
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gboolean ret = FALSE;
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GOptionContext *context;
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g_autoptr(GFile) base = NULL;
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g_autoptr(GFile) files_dir = NULL;
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g_autoptr(GFile) export_dir = NULL;
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g_autoptr(GFile) metadata_file = NULL;
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g_autoptr(XdgAppDir) user_dir = NULL;
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g_autoptr(XdgAppDir) system_dir = NULL;
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g_autofree char *metadata_contents = NULL;
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g_autofree char *app_id = NULL;
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gsize metadata_size;
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const char *directory;
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g_autoptr(GKeyFile) metakey = NULL;
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g_autoptr(XdgAppContext) arg_context = NULL;
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context = g_option_context_new ("DIRECTORY - Convert a directory to a bundle");
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arg_context = xdg_app_context_new ();
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g_option_context_add_group (context, xdg_app_context_get_options (arg_context));
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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 (argc < 2)
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{
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usage_error (context, "DIRECTORY must be specified", error);
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goto out;
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}
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directory = argv[1];
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base = g_file_new_for_commandline_arg (directory);
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files_dir = g_file_get_child (base, "files");
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export_dir = g_file_get_child (base, "export");
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metadata_file = g_file_get_child (base, "metadata");
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if (!g_file_query_exists (files_dir, cancellable) ||
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!g_file_query_exists (metadata_file, cancellable))
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Build directory %s not initialized", directory);
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goto out;
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}
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if (!g_file_load_contents (metadata_file, 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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app_id = g_key_file_get_string (metakey, "Application", "name", error);
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if (app_id == NULL)
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goto out;
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if (g_file_query_exists (export_dir, cancellable))
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Build directory %s already finalized", directory);
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goto out;
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}
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g_debug ("Collecting exports");
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if (!collect_exports (base, app_id, cancellable, error))
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goto out;
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g_debug ("Updating metadata");
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if (!update_metadata (base, arg_context, cancellable, error))
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goto out;
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g_print ("Please review the exported files and the metadata\n");
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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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