Allow not checking chroot freshness

This is useful to improve performance for for autobuild where we
build all packages on a snapshot of the distribution.

3 files changed, 7 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index 9845d05..46b1239 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,7 @@
 - ulri: improve handling of build failures
 - iurt: fix stale command detection when log is not created quickly enough
 - iurt: use urpm to parse synthesis (fixes support for xz)
+- iurt: add fixed_media option to make autobuild faster
 
 0.6.29
 - iurt: support chroot tarballs with non gz compression
diff --git a/iurt b/iurt
index 9f27e52..6b077dd 100755
--- a/iurt
+++ b/iurt
@@ -185,6 +185,9 @@ $run{todo} = [];
     [ "", "resume", 0, "",
     "Only build packages not yet done during previous build-all run",
     sub { $run{resume} = 1 }, "Setting the resume flag" ],
+    [ "", "fixed_media", 0, "",
+    "Assume media do not change between build (useful for full rebuild of a snapshot of the distro)",
+    sub { $run{fixed_media} = 1 }, "Setting the fixed_media flag" ],
     [ "n", "no", 0, "", 
     "Perform all the check but do not compile anything", 
     sub { ($run{no_compile}) = 1 }, "Setting the no compilation flag" ],
diff --git a/lib/Iurt/Chroot.pm b/lib/Iurt/Chroot.pm
index 0e5eccf..362c7e7 100644
--- a/lib/Iurt/Chroot.pm
+++ b/lib/Iurt/Chroot.pm
@@ -270,6 +270,7 @@ sub check_mounted {
 sub check_chroot_need_update {
     my ($tmp_chroot, $run) = @_;
 
+    return 0;
     my $tmp_urpmi = mktemp("$tmp_chroot/tmp.XXXXXX");
     mkdir_p("$tmp_urpmi/tmp");
     my @installed_pkgs = grep { !/^gpg-pubkey/ } chomp_(cat_("$tmp_chroot/var/log/qa"));
@@ -331,7 +332,7 @@ sub create_build_chroot_tar {
     if (!-f $chroot_tar) {
         plog("rebuild chroot tarball");
         $rebuild = 1;
-    } else {
+    } elsif (!$run->{fixed_media}) {
         plog('DEBUG', "decompressing /var/log/qa from $chroot_tar in $tmp_chroot");
         sudo($config, '--untar', $chroot_tar, $tmp_chroot, "./var/log/qa");
         $rebuild = check_chroot_need_update($tmp_chroot, $run);
@@ -368,6 +369,7 @@ sub create_build_chroot_btrfs {
 
     plog('NOTIFY', "creating btrfs chroot");
 
+    # TODO: Handle $run{fixed_media}
     if (check_chroot_need_update($chroot_ref, $run)) {
 	sudo($config, '--btrfs_delete', $chroot_ref);
 	if (!sudo($config, '--btrfs_create', $chroot_ref)) {