make missing 'pkgs' error non-fatal

tllocalmgr uses 'pkgs' files in order to get version information about
what texlive/CTAN packages are installed on the system. For official
texlive-* packages and some other ones this works fine, but a lot of
AUR packages *do not* create the a 'pkgs' file. In this situation,
tllocalmgr would fatal error out.

This is a little extreme, though sensible as without a valid 'pkgs' file
to parse for LaTeX package versions, tllocalmgr _might_ allow for
packages to be installed which are already present on the machine. This
however is _unlikly_ as when installing through pacman, we should hit
into the FS integrity check, causing install to fail.

Ideally we would want all texlive packages to always have a 'pkgs' file
but that is unlikely. An alternative idea might be to create a
pacman-hook to generate one if missing, but could be very tricky and
time consuming.

1 files changed, 14 insertions, 0 deletions

diff --git a/tllocalmgr-pkgs-nicer-error.patch b/tllocalmgr-pkgs-nicer-error.patch
new file mode 100644
index 000000000000..8b528763cf6a
--- /dev/null
+++ b/tllocalmgr-pkgs-nicer-error.patch
@@ -0,0 +1,14 @@
+--- a/tllocalmgr	2020-12-02 16:46:49.214712042 +0100
++++ b/tllocalmgr	2020-12-02 17:05:02.476194535 +0100
+@@ -171,7 +171,10 @@
+ 		$installedcol_versions{$col} = $ver;
+ 		my @list = ();
+ 		unless ( -f "$INSTALLEDPKGS/texlive-$col\_$ver.pkgs" ) {
+-			die "Cannot open $INSTALLEDPKGS/texlive-$col\_$ver.pkgs\n"
++			print BOLD RED "Cannot open $INSTALLEDPKGS/texlive-$col\_$ver.pkgs!\n";
++			print RED "-- Likely the package texlive-$col does not create the 'pkgs' file.\n";
++			print LOG "Cannot open $INSTALLEDPKGS/texlive-$col\_$ver.pkgs!\n";
++			next;
+ 		};
+ 		open INST, "<$INSTALLEDPKGS/texlive-$col\_$ver.pkgs" ;
+ 		while (<INST>) {