Add repo/set touching to avoid extra compiles

8 files changed, 126 insertions, 10 deletions

diff --git a/package/deps.mak b/package/deps.mak
index 180e311..2f7e0f0 100644
--- a/package/deps.mak
+++ b/package/deps.mak
@@ -49,6 +49,8 @@ src/libs6rc/s6rc_repo_sv_cmpr.o src/libs6rc/s6rc_repo_sv_cmpr.lo: src/libs6rc/s6
 src/libs6rc/s6rc_repo_sync.o src/libs6rc/s6rc_repo_sync.lo: src/libs6rc/s6rc_repo_sync.c src/include/s6-rc/repo.h src/include/s6-rc/s6rc-utils.h
 src/libs6rc/s6rc_repo_syncset.o src/libs6rc/s6rc_repo_syncset.lo: src/libs6rc/s6rc_repo_syncset.c src/include/s6-rc/repo.h
 src/libs6rc/s6rc_repo_syncset_tmp.o src/libs6rc/s6rc_repo_syncset_tmp.lo: src/libs6rc/s6rc_repo_syncset_tmp.c src/include/s6-rc/repo.h src/include/s6-rc/s6rc-utils.h
+src/libs6rc/s6rc_repo_touch.o src/libs6rc/s6rc_repo_touch.lo: src/libs6rc/s6rc_repo_touch.c src/include/s6-rc/repo.h
+src/libs6rc/s6rc_repo_touchset.o src/libs6rc/s6rc_repo_touchset.lo: src/libs6rc/s6rc_repo_touchset.c src/include/s6-rc/repo.h
 src/libs6rc/s6rc_sanitize_dir.o src/libs6rc/s6rc_sanitize_dir.lo: src/libs6rc/s6rc_sanitize_dir.c src/include/s6-rc/s6rc-utils.h
 src/libs6rc/s6rc_servicedir_block.o src/libs6rc/s6rc_servicedir_block.lo: src/libs6rc/s6rc_servicedir_block.c src/include/s6-rc/s6rc-servicedir.h
 src/libs6rc/s6rc_servicedir_copy_offline.o src/libs6rc/s6rc_servicedir_copy_offline.lo: src/libs6rc/s6rc_servicedir_copy_offline.c src/include/s6-rc/s6rc-servicedir.h src/libs6rc/s6rc-servicedir-internal.h
@@ -78,15 +80,15 @@ src/s6-rc/s6-rc-update.o src/s6-rc/s6-rc-update.lo: src/s6-rc/s6-rc-update.c src
 src/s6-rc/s6-rc.o src/s6-rc/s6-rc.lo: src/s6-rc/s6-rc.c src/include/s6-rc/config.h src/include/s6-rc/s6rc.h
 
 ifeq ($(strip $(STATIC_LIBS_ARE_PIC)),)
-libs6rc.a.xyzzy: src/libs6rc/s6rc_db_check_depcycles.o src/libs6rc/s6rc_db_check_pipelines.o src/libs6rc/s6rc_db_check_revdeps.o src/libs6rc/s6rc_db_read.o src/libs6rc/s6rc_db_read_sizes.o src/libs6rc/s6rc_db_read_uint32.o src/libs6rc/s6rc_graph_closure.o src/libs6rc/s6rc_live_state_size.o src/libs6rc/s6rc_live_state_read.o src/libs6rc/s6rc_livedir_canon.o src/libs6rc/s6rc_livedir_create.o src/libs6rc/s6rc_livedir_prefix.o src/libs6rc/s6rc_livedir_prefixsize.o src/libs6rc/s6rc_lock.o src/libs6rc/s6rc_ls.o src/libs6rc/s6rc_nlto0.o src/libs6rc/s6rc_read_uint.o src/libs6rc/s6rc_repo_badsub.o src/libs6rc/s6rc_repo_cleanup.o src/libs6rc/s6rc_repo_compile.o src/libs6rc/s6rc_repo_fillset.o src/libs6rc/s6rc_repo_fixset.o src/libs6rc/s6rc_repo_flattenservices.o src/libs6rc/s6rc_repo_list_sets.o src/libs6rc/s6rc_repo_listalldeps.o src/libs6rc/s6rc_repo_listcontents.o src/libs6rc/s6rc_repo_listdeps.o src/libs6rc/s6rc_repo_listdeps_internal.o src/libs6rc/s6rc_repo_listsub.o src/libs6rc/s6rc_repo_lock.o src/libs6rc/s6rc_repo_makedefbundle.o src/libs6rc/s6rc_repo_makesetbundles.o src/libs6rc/s6rc_repo_makestores.o src/libs6rc/s6rc_repo_makesvlist.o src/libs6rc/s6rc_repo_makesvlist_byname.o src/libs6rc/s6rc_repo_moveservices.o src/libs6rc/s6rc_repo_refcompile.o src/libs6rc/s6rc_repo_setcompile.o src/libs6rc/s6rc_repo_subnames.o src/libs6rc/s6rc_repo_sv_bcmpr.o src/libs6rc/s6rc_repo_sv_cmpr.o src/libs6rc/s6rc_repo_sync.o src/libs6rc/s6rc_repo_syncset.o src/libs6rc/s6rc_repo_syncset_tmp.o src/libs6rc/s6rc_sanitize_dir.o src/libs6rc/s6rc_servicedir_internal.o src/libs6rc/s6rc_servicedir_block.o src/libs6rc/s6rc_servicedir_unblock.o src/libs6rc/s6rc_servicedir_copy_offline.o src/libs6rc/s6rc_servicedir_copy_online.o src/libs6rc/s6rc_servicedir_manage.o src/libs6rc/s6rc_servicedir_unsupervise.o src/libs6rc/s6rc_strrefcmp.o src/libs6rc/s6rc_type_check.o
+libs6rc.a.xyzzy: src/libs6rc/s6rc_db_check_depcycles.o src/libs6rc/s6rc_db_check_pipelines.o src/libs6rc/s6rc_db_check_revdeps.o src/libs6rc/s6rc_db_read.o src/libs6rc/s6rc_db_read_sizes.o src/libs6rc/s6rc_db_read_uint32.o src/libs6rc/s6rc_graph_closure.o src/libs6rc/s6rc_live_state_size.o src/libs6rc/s6rc_live_state_read.o src/libs6rc/s6rc_livedir_canon.o src/libs6rc/s6rc_livedir_create.o src/libs6rc/s6rc_livedir_prefix.o src/libs6rc/s6rc_livedir_prefixsize.o src/libs6rc/s6rc_lock.o src/libs6rc/s6rc_ls.o src/libs6rc/s6rc_nlto0.o src/libs6rc/s6rc_read_uint.o src/libs6rc/s6rc_repo_badsub.o src/libs6rc/s6rc_repo_cleanup.o src/libs6rc/s6rc_repo_compile.o src/libs6rc/s6rc_repo_fillset.o src/libs6rc/s6rc_repo_fixset.o src/libs6rc/s6rc_repo_flattenservices.o src/libs6rc/s6rc_repo_list_sets.o src/libs6rc/s6rc_repo_listalldeps.o src/libs6rc/s6rc_repo_listcontents.o src/libs6rc/s6rc_repo_listdeps.o src/libs6rc/s6rc_repo_listdeps_internal.o src/libs6rc/s6rc_repo_listsub.o src/libs6rc/s6rc_repo_lock.o src/libs6rc/s6rc_repo_makedefbundle.o src/libs6rc/s6rc_repo_makesetbundles.o src/libs6rc/s6rc_repo_makestores.o src/libs6rc/s6rc_repo_makesvlist.o src/libs6rc/s6rc_repo_makesvlist_byname.o src/libs6rc/s6rc_repo_moveservices.o src/libs6rc/s6rc_repo_refcompile.o src/libs6rc/s6rc_repo_setcompile.o src/libs6rc/s6rc_repo_subnames.o src/libs6rc/s6rc_repo_sv_bcmpr.o src/libs6rc/s6rc_repo_sv_cmpr.o src/libs6rc/s6rc_repo_sync.o src/libs6rc/s6rc_repo_syncset.o src/libs6rc/s6rc_repo_syncset_tmp.o src/libs6rc/s6rc_repo_touch.o src/libs6rc/s6rc_repo_touchset.o src/libs6rc/s6rc_sanitize_dir.o src/libs6rc/s6rc_servicedir_internal.o src/libs6rc/s6rc_servicedir_block.o src/libs6rc/s6rc_servicedir_unblock.o src/libs6rc/s6rc_servicedir_copy_offline.o src/libs6rc/s6rc_servicedir_copy_online.o src/libs6rc/s6rc_servicedir_manage.o src/libs6rc/s6rc_servicedir_unsupervise.o src/libs6rc/s6rc_strrefcmp.o src/libs6rc/s6rc_type_check.o
 else
-libs6rc.a.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
+libs6rc.a.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_repo_touch.lo src/libs6rc/s6rc_repo_touchset.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
 endif
 libs6rc.pc: EXTRA_LIBS := -ls6 -lskarnet ${SPAWN_LIB}
 libs6rc.so.xyzzy: EXTRA_LIBS := -ls6 -lskarnet ${SPAWN_LIB}
-libs6rc.so.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
+libs6rc.so.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_repo_touch.lo src/libs6rc/s6rc_repo_touchset.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
 libs6rc.dylib.xyzzy: EXTRA_LIBS := -ls6 -lskarnet ${SPAWN_LIB}
-libs6rc.dylib.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
+libs6rc.dylib.xyzzy:src/libs6rc/s6rc_db_check_depcycles.lo src/libs6rc/s6rc_db_check_pipelines.lo src/libs6rc/s6rc_db_check_revdeps.lo src/libs6rc/s6rc_db_read.lo src/libs6rc/s6rc_db_read_sizes.lo src/libs6rc/s6rc_db_read_uint32.lo src/libs6rc/s6rc_graph_closure.lo src/libs6rc/s6rc_live_state_size.lo src/libs6rc/s6rc_live_state_read.lo src/libs6rc/s6rc_livedir_canon.lo src/libs6rc/s6rc_livedir_create.lo src/libs6rc/s6rc_livedir_prefix.lo src/libs6rc/s6rc_livedir_prefixsize.lo src/libs6rc/s6rc_lock.lo src/libs6rc/s6rc_ls.lo src/libs6rc/s6rc_nlto0.lo src/libs6rc/s6rc_read_uint.lo src/libs6rc/s6rc_repo_badsub.lo src/libs6rc/s6rc_repo_cleanup.lo src/libs6rc/s6rc_repo_compile.lo src/libs6rc/s6rc_repo_fillset.lo src/libs6rc/s6rc_repo_fixset.lo src/libs6rc/s6rc_repo_flattenservices.lo src/libs6rc/s6rc_repo_list_sets.lo src/libs6rc/s6rc_repo_listalldeps.lo src/libs6rc/s6rc_repo_listcontents.lo src/libs6rc/s6rc_repo_listdeps.lo src/libs6rc/s6rc_repo_listdeps_internal.lo src/libs6rc/s6rc_repo_listsub.lo src/libs6rc/s6rc_repo_lock.lo src/libs6rc/s6rc_repo_makedefbundle.lo src/libs6rc/s6rc_repo_makesetbundles.lo src/libs6rc/s6rc_repo_makestores.lo src/libs6rc/s6rc_repo_makesvlist.lo src/libs6rc/s6rc_repo_makesvlist_byname.lo src/libs6rc/s6rc_repo_moveservices.lo src/libs6rc/s6rc_repo_refcompile.lo src/libs6rc/s6rc_repo_setcompile.lo src/libs6rc/s6rc_repo_subnames.lo src/libs6rc/s6rc_repo_sv_bcmpr.lo src/libs6rc/s6rc_repo_sv_cmpr.lo src/libs6rc/s6rc_repo_sync.lo src/libs6rc/s6rc_repo_syncset.lo src/libs6rc/s6rc_repo_syncset_tmp.lo src/libs6rc/s6rc_repo_touch.lo src/libs6rc/s6rc_repo_touchset.lo src/libs6rc/s6rc_sanitize_dir.lo src/libs6rc/s6rc_servicedir_internal.lo src/libs6rc/s6rc_servicedir_block.lo src/libs6rc/s6rc_servicedir_unblock.lo src/libs6rc/s6rc_servicedir_copy_offline.lo src/libs6rc/s6rc_servicedir_copy_online.lo src/libs6rc/s6rc_servicedir_manage.lo src/libs6rc/s6rc_servicedir_unsupervise.lo src/libs6rc/s6rc_strrefcmp.lo src/libs6rc/s6rc_type_check.lo
 s6-rc-repo-init: EXTRA_LIBS := ${SYSCLOCK_LIB}
 s6-rc-repo-init: src/repo/s6-rc-repo-init.o ${LIBS6RC} -lskarnet
 s6-rc-repo-sync: EXTRA_LIBS := ${SYSCLOCK_LIB}
diff --git a/src/include/s6-rc/repo.h b/src/include/s6-rc/repo.h
index 2253984..7122404 100644
--- a/src/include/s6-rc/repo.h
+++ b/src/include/s6-rc/repo.h
@@ -30,6 +30,8 @@ extern int s6rc_repo_sync (char const *, unsigned int, char const *) ;
 extern int s6rc_repo_syncset (char const *, char const *, unsigned int) ;
 extern int s6rc_repo_syncset_tmp (char const *, char const *, stralloc *, genalloc *ga, unsigned int) ;
 extern int s6rc_repo_lock (char const *, int) ;
+extern int s6rc_repo_touch (char const *) ;
+extern int s6rc_repo_touchset (char const *, char const *) ;
 
 extern int s6rc_repo_makesetbundles (char const *, char const *, unsigned int) ;
 extern int s6rc_repo_makedefbundle (char const *, char const *, char const *) ;
diff --git a/src/libs6rc/deps-lib/s6rc b/src/libs6rc/deps-lib/s6rc
index d847297..79c2909 100644
--- a/src/libs6rc/deps-lib/s6rc
+++ b/src/libs6rc/deps-lib/s6rc
@@ -42,6 +42,8 @@ s6rc_repo_sv_cmpr.o
 s6rc_repo_sync.o
 s6rc_repo_syncset.o
 s6rc_repo_syncset_tmp.o
+s6rc_repo_touch.o
+s6rc_repo_touchset.o
 s6rc_sanitize_dir.o
 s6rc_servicedir_internal.o
 s6rc_servicedir_block.o
diff --git a/src/libs6rc/s6rc_repo_touch.c b/src/libs6rc/s6rc_repo_touch.c
new file mode 100644
index 0000000..069ed78
--- /dev/null
+++ b/src/libs6rc/s6rc_repo_touch.c
@@ -0,0 +1,45 @@
+/* ISC license. */
+
+#include <string.h>
+#include <errno.h>
+
+#include <skalibs/direntry.h>
+#include <skalibs/strerr.h>
+
+#include <s6-rc/repo.h>
+
+int s6rc_repo_touch (char const *repo)
+{
+  DIR *dir ;
+  size_t repolen = strlen(repo) ;
+  char sources[repolen + 9] ;
+  memcpy(sources, repo, repolen) ;
+  memcpy(sources + repolen, "/sources", 9) ;
+
+  dir = opendir(sources) ;
+  if (!dir)
+  {
+    strerr_warnfu2sys("opendir ", sources) ;
+    return 0 ;
+  }
+  for (;;)
+  {
+    direntry *d ;
+    errno = 0 ;
+    d = readdir(dir) ;
+    if (!d) break ;
+    if (d->d_name[0] == '.') continue ;
+    if (!s6rc_repo_touchset(repo, d->d_name))
+    {
+      dir_close(dir) ;
+      return 0 ;
+    }
+  }
+  dir_close(dir) ;
+  if (errno)
+  {
+    strerr_warnfu2sys("readdir ", sources) ;
+    return 0 ;
+  }
+  return 1 ;
+}
diff --git a/src/libs6rc/s6rc_repo_touchset.c b/src/libs6rc/s6rc_repo_touchset.c
new file mode 100644
index 0000000..684bfc4
--- /dev/null
+++ b/src/libs6rc/s6rc_repo_touchset.c
@@ -0,0 +1,25 @@
+/* ISC license. */
+
+#include <string.h>
+
+#include <skalibs/posixplz.h>
+#include <skalibs/strerr.h>
+
+#include <s6-rc/repo.h>
+
+int s6rc_repo_touchset (char const *repo, char const *set)
+{
+  size_t repolen = strlen(repo) ;
+  size_t setlen = strlen(set) ;
+  char fn[repolen + 17 + setlen] ;
+  memcpy(fn, repo, repolen) ;
+  memcpy(fn + repolen, "/sources/", 9) ;
+  memcpy(fn + repolen + 9, set, setlen) ;
+  memcpy(fn + repolen + 9 + setlen, "/.stamp", 8) ;
+  if (!touch(fn))
+  {
+    strerr_warnfu2sys("touch ", fn) ;
+    return 0 ;
+  }
+  return 1 ;
+}
diff --git a/src/repo/s6-rc-repo-sync.c b/src/repo/s6-rc-repo-sync.c
index 751037c..474eec5 100644
--- a/src/repo/s6-rc-repo-sync.c
+++ b/src/repo/s6-rc-repo-sync.c
@@ -46,6 +46,7 @@ int main (int argc, char const *const *argv)
   if (fdlock == -1) strerr_diefu2sys(111, "lock ", wgola[GOLA_REPODIR]) ;
 
   if (!s6rc_repo_sync(wgola[GOLA_REPODIR], verbosity, wgola[GOLA_FDHUSER])) _exit(111) ;
+  if (!s6rc_repo_touch(wgola[GOLA_REPODIR])) _exit(111) ;
 
   _exit(0) ;
 }
diff --git a/src/repo/s6-rc-set-commit.c b/src/repo/s6-rc-set-commit.c
index 9676f68..908f307 100644
--- a/src/repo/s6-rc-set-commit.c
+++ b/src/repo/s6-rc-set-commit.c
@@ -19,12 +19,13 @@
 #include <s6-rc/config.h>
 #include <s6-rc/s6rc.h>
 
-#define USAGE "s6-rc-set-commit [ -v verbosity ] [ -r repo ] [ -D defaultbundle ] [ -h fdhuser ] [ -K ] set"
+#define USAGE "s6-rc-set-commit [ -v verbosity ] [ -r repo ] [ -D defaultbundle ] [ -h fdhuser ] [ -K ] [ -f ] set"
 #define dieusage() strerr_dieusage(100, USAGE)
 
 enum golb_e
 {
-  GOLB_KEEPOLD = 0x01
+  GOLB_KEEPOLD = 0x01,
+  GOLB_FORCE = 0x02
 } ;
 
 enum gola_e
@@ -38,7 +39,8 @@ enum gola_e
 
 static gol_bool const rgolb[] =
 {
-  { .so = 'K', .lo = "keep-old", .clear = 0, .set = GOLB_KEEPOLD }
+  { .so = 'K', .lo = "keep-old", .clear = 0, .set = GOLB_KEEPOLD },
+  { .so = 'f', .lo = "force", .clear = 0, .set = GOLB_FORCE }
 } ;
 
 static gol_arg const rgola[] =
@@ -51,7 +53,7 @@ static gol_arg const rgola[] =
 
 static uint64_t wgolb = 0 ;
 
-static void check_set (char const *repo, char const *set)
+static inline void check_set (char const *repo, char const *set)
 {
   struct stat st ;
   size_t repolen = strlen(repo) ;
@@ -70,6 +72,34 @@ static void check_set (char const *repo, char const *set)
     strerr_dief3x(102, "file ", fn, " is not a directory") ;
 }
 
+static inline int uptodate (char const *repo, char const *set)
+{
+  struct stat stsource ;
+  struct stat stcompiled ;
+  size_t repolen = strlen(repo) ;
+  size_t setlen = strlen(set) ;
+  char srcfn[repolen + 17 + setlen] ;
+  char dstfn[repolen + 11 + setlen] ;
+  memcpy(srcfn, repo, repolen) ;
+  memcpy(srcfn + repolen, "/sources/", 9) ;
+  memcpy(srcfn + repolen + 9, set, setlen) ;
+  memcpy(srcfn + repolen + 9 + setlen, "/.stamp", 8) ;
+  memcpy(dstfn, repo, repolen) ;
+  memcpy(dstfn + repolen, "/compiled/", 10) ;
+  memcpy(dstfn + repolen + 10, set, setlen + 1) ;
+  if (stat(srcfn, &stsource) == -1)
+    strerr_diefu2sys(111, "stat ", srcfn) ;
+  if (stat(dstfn, &stcompiled) == -1)
+  {
+    if (errno == ENOENT) return 0 ;
+    else strerr_diefu2sys(111, "stat ", dstfn) ;
+  }
+  return
+    stsource.st_atim.tv_sec < stcompiled.st_atim.tv_sec ? 1 :
+    stsource.st_atim.tv_sec > stcompiled.st_atim.tv_sec ? 0 :
+    stsource.st_atim.tv_nsec < stcompiled.st_atim.tv_nsec ;
+}
+
 int main (int argc, char const *const *argv)
 {
   int fdlock ;
@@ -93,6 +123,11 @@ int main (int argc, char const *const *argv)
   fdlock = s6rc_repo_lock(wgola[GOLA_REPODIR], 1) ;
   if (fdlock == -1) strerr_diefu2sys(111, "lock ", wgola[GOLA_REPODIR]) ;
   check_set(wgola[GOLA_REPODIR], argv[0]) ;
+  if (!(wgolb & GOLB_FORCE) && uptodate(wgola[GOLA_REPODIR], argv[0]))
+  {
+    if (verbosity >= 2) strerr_warni3x("set ", argv[0], " is already up-to-date.") ;
+    _exit(0) ;
+  }
 
   size_t oldclen = S6RC_REPO_COMPILE_BUFLEN(strlen(wgola[GOLA_REPODIR]), strlen(argv[0])) ;
   char oldc[oldclen] ;
diff --git a/src/repo/s6-rc-set-new.c b/src/repo/s6-rc-set-new.c
index 04be39d..010c2b1 100644
--- a/src/repo/s6-rc-set-new.c
+++ b/src/repo/s6-rc-set-new.c
@@ -34,6 +34,7 @@ static inline void newset (char const *repo, char const *setname)
 {
   size_t repolen = strlen(repo) ;
   size_t setlen = strlen(setname) ;
+  mode_t m ;
   char atomics[repolen + 18] ;
   char fn[repolen + 10 + setlen] ;
   char tmp[repolen + 18 + setlen] ;
@@ -51,6 +52,7 @@ static inline void newset (char const *repo, char const *setname)
   tmp[repolen + 9] = '.' ;
   memcpy(tmp + repolen + 10, setname, setlen) ;
   memcpy(tmp + repolen + 10 + setlen, ":XXXXXX", 8) ;
+  m = umask(0) ;
   if (!mkdtemp(tmp)) strerr_diefu2sys(111, "mkdtemp ", tmp) ;
 
   for (size_t i = 0 ; i < 4 ; i++)
@@ -58,12 +60,14 @@ static inline void newset (char const *repo, char const *setname)
     memcpy(sub + repolen + 18 + setlen, s6rc_repo_subnames[i], 7) ;
     if (mkdir(sub, 02755) == -1)
     {
+      umask(m) ;
       cleanup(tmp) ;
       strerr_diefu2sys(111, "mkdir ", sub) ;
     }
   }
-
-  if (s6rc_repo_fillset(repo, tmp + repolen + 9, 0, 0))
+  umask(m) ;
+  if (!s6rc_repo_fillset(repo, tmp + repolen + 9, 0, 0)
+   || !s6rc_repo_touchset(repo, tmp + repolen + 9))
   {
     cleanup(tmp) ;
     _exit(111) ;