[PATCH v2 06/10] pakfire: Add list upgrade functionality

[Robin Roevens <robin.roevens@disroot.org>]

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- Added possibility to list available upgrades from commandline
  using 'pakfire list upgrade'.
- Added exitcode to 'pakfire list'
- Moved 'Pakfire has finished' log message inside END block to
  always log when pakfire exited.
- Fix: allow [options] between 'list' and [installed/notinstalled/
  upgrade] parameters (Partly fixes Bug #12868)

Signed-off-by: Robin Roevens <robin.roevens(a)disroot.org>
---
 src/pakfire/lib/functions.pl |  2 +-
 src/pakfire/pakfire          | 30 ++++++++++++++++++++++++------
 2 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/src/pakfire/lib/functions.pl b/src/pakfire/lib/functions.pl
index 4f0515f62..d8b5c5a26 100644
--- a/src/pakfire/lib/functions.pl
+++ b/src/pakfire/lib/functions.pl
@@ -114,7 +114,7 @@ sub usage {
   &Pakfire::message("Usage: pakfire <install|remove> [options] <pak(s)>");
   &Pakfire::message("               <update> - Contacts the servers for new lists of paks.");
   &Pakfire::message("               <upgrade> - Installs the latest version of all paks.");
-  &Pakfire::message("               <list> - Outputs a short list with all available paks.");
+  &Pakfire::message("               <list> [installed/notinstalled/upgrade] - Outputs a list with all, installed, available or upgradeable paks.");
   &Pakfire::message("               <status> - Outputs a summary about available core upgrades, updates and a required reboot");
   &Pakfire::message("");
   &Pakfire::message("       Global options:");
diff --git a/src/pakfire/pakfire b/src/pakfire/pakfire
index 351d71216..766d91b81 100644
--- a/src/pakfire/pakfire
+++ b/src/pakfire/pakfire
@@ -329,14 +329,18 @@
 
 	} elsif ("$ARGV[0]" eq "list") {
 		my $count;
+		my $coreupdate = 0;
 		my $use_color = "";
 		my $reset_color = "";
 		my $filter = "all";
 
-		if ("$ARGV[1]" =~ /installed|notinstalled/) {
+		shift if ("$ARGV[1]" =~ "^-"); 
+
+		if ("$ARGV[1]" =~ /installed|notinstalled|upgrade/) {
 			$filter = "$ARGV[1]";
-		} else {
-			&Pakfire::message("PAKFIRE WARN: Not a known option $ARGV[1]") if ($ARGV[1]); 
+		} elsif ($ARGV[1]) {
+			&Pakfire::message("PAKFIRE ERROR: Not a known option $ARGV[1]"); 
+			exit 1;
 		}
 
 		my $pak;
@@ -347,6 +351,17 @@
 			$use_color = "$Pakfire::color{'lightgreen'}";
 		}
 
+  		# Check for available core upgrade first if list of upgrades is requested
+		if ("$filter" eq "upgrade") {
+			my %coredb = &Pakfire::coredbinfo();
+
+			if (defined $coredb{'AvailableRelease'}) {
+				print "${use_color}Core-Update $coredb{'CoreVersion'}\n";
+				print "Release: $coredb{'Release'} -> $coredb{'AvailableRelease'}${reset_color}\n\n";
+				$coreupdate = 1;
+			}
+		}
+
 		foreach $pak (sort keys %paklist) {
 			if ("$Pakfire::enable_colors" eq "1") {
 				if ("$paklist{$pak}{'Installed'}" eq "yes") {
@@ -373,7 +388,10 @@
 		if ($count > 0) {
 			print "$count packages total.\n";
 		} else {
-			&Pakfire::message("PAKFIRE WARN: No packages where found using filter $filter.");
+			if (! $coreupdate) {
+				&Pakfire::message("PAKFIRE WARN: No packages where found using filter $filter.");
+				exit 1;
+			}
 		}
 	} elsif ("$ARGV[0]" eq "resolvedeps") {
 		foreach (@ARGV) {
@@ -399,9 +417,9 @@
 		&Pakfire::usage;
 	}
 
-	&Pakfire::logger("PAKFIRE INFO: Pakfire has finished. Closing.");
-
 	END {
+		&Pakfire::logger("PAKFIRE INFO: Pakfire has finished. Closing.");
+
 		# Check if pakfire has been locked in this session.
 		if ($locked) {
 			# Remove lockfile.
-- 
2.36.1


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