builder-main: Support setting state-dir for run

Fixes #401

Author: bbhtt

NEWS

@@ -8,6 +8,7 @@ TBD
 * Prevent writing duplicate groups to metadata file
 * Disable all filesystem access in flatpak-builder --run sandbox
 * Add ability to set custom fusermount path
+* Support setting state-dir for run
 
 Changes in 1.4.6
 ================

doc/flatpak-builder.xml

@@ -228,9 +228,9 @@
                   <para>
                   Only the
                   <option>--arch=</option><replaceable>ARCH</replaceable>,
-                  <option>--ccache</option> and
-                  <option>--verbose</option> options can be combined
-                  with this option.
+                  <option>--ccache</option>, <option>--verbose</option>
+                  and <option>--state-dir</option><replaceable>PATH</replaceable>
+                  (since 1.4.8) options can be combined with this option.
                   </para>
                 </listitem>
             </varlistentry>

src/builder-main.c

@@ -156,6 +156,7 @@ static GOptionEntry run_entries[] = {
   { "log-session-bus", 0, 0, G_OPTION_ARG_NONE, &opt_log_session_bus, N_("Log session bus calls"), NULL },
   { "log-system-bus", 0, 0, G_OPTION_ARG_NONE, &opt_log_system_bus, N_("Log system bus calls"), NULL },
   { "ccache", 0, 0, G_OPTION_ARG_NONE, &opt_ccache, "Use ccache", NULL },
+  { "state-dir", 0, 0, G_OPTION_ARG_FILENAME, &opt_state_dir, "Use this directory for state instead of .flatpak-builder", "PATH" },
   { NULL }
 };