Improved documentation and error messages.

1 files changed, 7 insertions, 8 deletions

diff --git a/lib/MGA/DrakISO/BuildISO.pm b/lib/MGA/DrakISO/BuildISO.pm
index 54edaff..41f562a 100644
--- a/lib/MGA/DrakISO/BuildISO.pm
+++ b/lib/MGA/DrakISO/BuildISO.pm
@@ -19,9 +19,7 @@
 
 # SYNOPSIS
 # --------
-# This module provides a function to build the ISO image. All the files
-# to go on the ISO should be stored in or linked into the build directory
-# before performing this step.
+# This package provides a function to finally build the ISO image.
 
 package MGA::DrakISO::BuildISO;
 
@@ -40,9 +38,10 @@ use Exporter;
 our @ISA = qw(Exporter);
 our @EXPORT = qw(build_iso);
 
-# This is the top-level function called to build an iso image. It generates
+# This is the top-level function called to build an ISO image. It generates
 # the list of file assignments before calling build_iso_image() to do the
-# actual work.
+# actual work. All the files to go on the ISO should be stored in or linked
+# into the build directory before calling this function.
 #
 sub build_iso {
     my ($build) = @_;
@@ -101,10 +100,10 @@ sub build_iso_image {
     my $arch = $build->{settings}{arch};
 
     my $mbr_image = $build->get_absolute_path($build->{media}{mbr_boot_img}) // '/usr/lib/grub/i386-pc/boot_hybrid.img';
-    -e $mbr_image or die "cannot find MBR boot image $mbr_image\n";
+    -e $mbr_image or die "ERROR: cannot find MBR boot image $mbr_image\n";
 
     my $esp_image = $build->get_builddir('images') . '/esp.img';
-    -e $esp_image || $arch ne 'x86_64' or die "cannot find ESP image $esp_image\n";
+    -e $esp_image || $arch ne 'x86_64' or die "ERROR: cannot find ESP image $esp_image\n";
 
     my $build_dir = $build->get_builddir('dist');
     mkdir_p($build_dir);
@@ -148,7 +147,7 @@ sub build_iso_image {
             '-o', $dest,
             @opts,
             '/DATE.txt=' . $date_file,
-    ) or die "unable to run xorrisofs\n";
+    ) or die "ERROR: unable to run xorrisofs\n";
 
     my $filename = basename($dest);
     run_('mgaiso-addmd5', '>', '/dev/null', '2>', '/dev/null', $dest);