sabayon-buildpackages: add support for DETECT_OBSOLETE and TARGET_OVERLAY

move up the adjustment of emerge/equo arguments, avoid to copy artifacts when PRETEND mode is on

builder

@@ -40,6 +40,9 @@ my $remote_overlay            = $ENV{REMOTE_OVERLAY};
 my $qualityassurance_checks   = $ENV{QA_CHECKS} // 0;
 my $remote_conf_portdir       = $ENV{REMOTE_CONF_PORTDIR};
 my $remote_portdir            = $ENV{REMOTE_PORTDIR};
+my $pretend                   = $ENV{PRETEND} // 0;
+my $obsoleted                 = $ENV{DETECT_OBSOLETE} // 0;
+my $target_overlay            = $ENV{TARGET_OVERLAY};
 
 my $make_conf = $ENV{MAKE_CONF};
 
@@ -235,8 +238,9 @@ sub uniq {
     keys %{ { map { $_ => 1 } @_ } };
 }
 
-sub detect_useflags
-{ # Detect useflags defined as [-alsa,avahi] in atom, and fill $hash within the $target sub-hash
+# Detect useflags defined as [-alsa,avahi] in atom,
+# and fill $hash within the $target sub-hash
+sub detect_useflags {
     my ( $target, $packages ) = @_;
     my @packs = @{$packages};
     for my $i ( 0 .. $#packs ) {
@@ -315,6 +319,14 @@ say "\t* " . $_ for @ARGV;
 
 say "[*] Syncing configurations files, Layman and Portage";
 
+if ($pretend) {
+    say "[*] PRETEND enabled, no real action will be performed.";
+    say "    Bear in mind that in such way the list of packages";
+    say "    that emerge will try to compile will be bigger";
+    $equo_install_args    .= " -p";
+    $emerge_defaults_args .= " -p";
+}
+
 # Syncronizing portage configuration and adding overlays
 system("echo 'en_US.UTF-8 UTF-8' > /etc/locale.gen");    #be sure about that.
 
@@ -523,7 +535,8 @@ if ($use_equo) {
         safe_call("equo i $equo_install_args --bdeps $_")
             for ( @packages_deps, @equo_install )
             ; ## bail out here, if installs fails. emerge will compile a LOT of stuff
-        if ( @equo_remove > 0 ) {
+        if ( @equo_remove > 0 and !$pretend ) {
+            say "Removing with equo: @equo_remove";
             system("equo rm --nodeps $_") for (@equo_remove);
         }
     }
@@ -554,6 +567,7 @@ system("emerge --info")
 my $rt;
 
 if ( $emerge_remove and $emerge_remove ne "" ) {
+    say "Removing with emerge: $emerge_remove";
     system("emerge -C $_") for split( / /, $emerge_remove );
 }
 
@@ -570,7 +584,7 @@ my $return = $rt >> 8;
 # best effort -B
 compile_packs( "injected_targets", @injected_packages );
 
-if ($preserved_rebuild) {
+if ( $preserved_rebuild and !$pretend ) {
 
     system("emerge -j $jobs --buildpkg \@preserved-rebuild");
     system("revdep-rebuild");
@@ -586,9 +600,14 @@ if ( $qualityassurance_checks == 1 ) {
     }
 }
 
+if ( $obsoleted and $target_overlay ) {
+    say "*** Detecting obsoletes ***";
+    system("sabayon-detectobsolete --overlay ${target_overlay}");
+}
+
 # Copy files to artifacts folder
 system(
     "mkdir -p $artifacts_folder;cp -rfv /usr/portage/packages $artifacts_folder"
-) if ( $artifacts_folder and !$return );
+) if ( $artifacts_folder and !$return and !$pretend );
 
 exit($return);

sabayon-buildpackages

@@ -8,7 +8,7 @@ MAKE_CONF="${MAKE_CONF:-$SAB_WORKSPACE/specs/make.conf}"
 OUTPUT_DIR="${OUTPUT_DIR:-$SAB_WORKSPACE/portage_artifacts/}"
 LOCAL_OVERLAY="${LOCAL_OVERLAY:-$SAB_WORKSPACE/local_overlay}"
 ENTROPY_REPOSITORY="${ENTROPY_REPOSITORY:-main}" # Can be weekly, main, testing
-DOCKER_OPTS="${DOCKER_OPTS:--ti --rm}"
+DOCKER_OPTS="${DOCKER_OPTS:--ti --rm --cap-add=SYS_PTRACE}"
 
 . /sbin/sabayondevkit-functions.sh
 
@@ -56,6 +56,9 @@ docker_volumes=( -v "$OUTPUT_DIR:/usr/portage/packages" )
 [ -z "$REMOTE_CONF_PORTDIR" ] || docker_env+=(-e "REMOTE_CONF_PORTDIR=$REMOTE_CONF_PORTDIR")
 [ -z "$REMOTE_PORTDIR" ] || docker_env+=(-e "REMOTE_PORTDIR=$REMOTE_PORTDIR")
 [ -z "$ETP_NOCACHE" ] || docker_env+=(-e "ETP_NOCACHE=$ETP_NOCACHE")
+[ -z "$PRETEND" ] || docker_env+=(-e "PRETEND=$PRETEND")
+[ -z "$DETECT_OBSOLETE" ] || docker_env+=(-e "DETECT_OBSOLETE=$DETECT_OBSOLETE")
+[ -z "$TARGET_OVERLAY" ] || docker_env+=(-e "TARGET_OVERLAY=$TARGET_OVERLAY")
 [ -d "$LOCAL_OVERLAY" ] && docker_volumes+=(-v "$LOCAL_OVERLAY:/usr/local/local_portage")
 
 if [ -e $MAKE_CONF ]; then

sabayon-detectobsolete

@@ -0,0 +1,65 @@
+#!/usr/bin/perl
+# mudler <mudler@sabayon.org>
+# this tool requires querypkg
+use Getopt::Long;
+use strict;
+use warnings;
+my $arch;
+my $verbose;
+my $overlay;
+GetOptions(
+    "arch=s"    => \$arch,
+    "overlay=s" => \$overlay,
+    "verbose"   => \$verbose
+) or die("Error in command line arguments\n");
+
+die("You should at least supply an overlay with --overlay") if !$overlay;
+
+# Input: Overlay absolute path
+# Output: array with package names (category/name)
+sub get_packages {
+    keys %{
+        {   map {
+                s/$overlay\/|\.ebuild//g;
+                $_ = join( '/', ( split( /\//, $_ ) )[ 0, 1 ] );
+                $_ => 1
+            } glob( $_[0] . "/*/*/*.ebuild" )
+        }
+    };
+}
+
+# Input: package (category/name)
+# Output: returns 1 if obsolete and can be removed
+sub obsolete_package($$) {
+    my $package = $_[0];
+    my $arch    = $_[1];
+    my $l_arch  = ( defined $arch and $arch ne "" ? "--arch $arch" : "" );
+    print "querypkg -q $l_arch $package --show spm_repo\n" if $verbose;
+    my @out = `querypkg -q $l_arch $package --show spm_repo`;
+    chomp(@out);
+    return 1 if "@out" eq "";
+    foreach my $l (@out) {
+        print " >> $l\n" if $verbose;
+        return 1 if ( $l =~ /$package.*\{spm_repo\:gent.*/ );
+    }
+    return 0;
+}
+
+my @packages = get_packages($overlay);
+my @obsoletes;
+
+foreach my $p (@packages) {
+    print "[$p] Checking if there is a version in the repositories.... ";
+    print "\n" if $verbose;
+    if ( obsolete_package( $p, $arch ) ) {
+        print " OBSOLETE! \n";
+        push( @obsoletes, $p );
+    }
+    else {
+        print " ok  \n";
+    }
+}
+
+print "\n";
+print "Obsoletes found:\n\n";
+print "$_\n" for @obsoletes;