--- loncom/build/Attic/parse.pl	2001/02/27 15:23:35	1.30
+++ loncom/build/Attic/parse.pl	2001/04/17 14:09:14	1.35
@@ -2,8 +2,19 @@
 
 # Scott Harrison
 # November 2000
-
-# Read in loncapa tags and metagroup tags
+# 12/5/2000,12/7,12/8,12/9,12/10,12/11,12/12,12/13,12/14,12/21 Scott Harrison
+# 1/8/2001,1/10/2001,1/13/2001,1/16/2001,1/18/2001,1/23/2001 Scott Harrison
+# 2/26/2001,2/27/2001,3/5/2001,4/10/2001,4/11,2001,4/13,2001 Scott Harrison
+# 4/17/2001 Scott Harrison
+
+# Read in loncapa tags and metagroup tags.  Output various
+# useful files for viewing, compiling, monitoring, updating,
+# and installing.
+
+# This code works well.  HOWEVER, I was in a rush when I
+# wrote it.  Future plans are that the parsing should be
+# much more event-state based and the input should be
+# more XML-ish. -Scott
 
 # ---------------------------------------------- Read in command line arguments
 my ($file,$mode)=@ARGV;
@@ -568,7 +579,9 @@ sub make_files_build_segment {
     my $description;
     my @allfiles=keys %{$info{'LOCATION'}{$distribution}};
     my $tab="\t";
-    my $sources="all: ";
+    my $sources="# Dynamic Makefile generated by LON-CAPA build process\n\n";
+    $sources.="SHELL=\"/bin/sh\"\n\n";
+    $sources.="\nall: ";
     foreach my $d (@$dirs) {
 	# set other values
 	my $dirdescription=$info{'DIRECTORY'}{$distribution}{$d}{'DESCRIPTION'};
@@ -609,9 +622,25 @@ sub make_files_build_segment {
 			$depstat=" alwaysrun";
 		    }
 		    $dependencies=~s/\s+/ $sdir/gs;
+		    my @deps=split(/\s+/,$dependencies);
+		    shift @deps;
+		    my $testing=<<END;
+	\@if !(echo "");\\
+	        then echo "**** LON-CAPA WARNING **** Strange shell. Check your path settings.";\\
+END
+		    foreach my $d (@deps) {
+			$testing.=<<END;
+	elif !(test -r $d);\\
+		then echo "**** LON-CAPA WARNING **** missing the file: $d";\\
+END
+		    }
+		    chop $testing;
 		    $description.=<<END;
-$source2: $dependencies$depstat
-${tab}cd $directory; sh ./$buildfile
+$source2: $depstat
+$testing
+        else \\
+	    ${tab}cd $directory; sh ./$buildfile;\\
+        fi
 
 END
 		}
@@ -674,10 +703,16 @@ END
 		my $rot=$filesfull[$i];
 		$rot=~s/[^\/]+$/\./ if $rot=~/\*/;
 		my ($owner,$group)=split(/\:/,$devchown);
-		if ($category ne 'conf') {
-		    $description.=<<END if $category ne 'symbolic link';
+		if ($category ne 'conf' && $category ne 'symbolic link') {
+		    if ($source!~/\*/) {
+			$description.=<<END;
+\ttest '-e \$(SOURCE)/$source' \&\& install -o $owner -g $group -m $devchmod \$(SOURCE)/$source \$(TARGET)/$rot || echo "**** LON-CAPA WARNING **** CVS source file does not exist: \$(SOURCE)/$source"
+END
+                    }
+		    else {
 \tinstall -o $owner -g $group -m $devchmod \$(SOURCE)/$source \$(TARGET)/$rot
 END
+		    }
                 }
 	    }
 	}
@@ -727,7 +762,7 @@ END
 		my ($owner,$group)=split(/\:/,$devchown);
 		if ($category eq 'conf') {
 		    $description.=<<END;
-\tcp -p \$(TARGET)/$rot \$(TARGET)/$rot`date +'.\%Y\%m\%d\%H\%M\%S'`; install -o $owner -g $group -m $devchmod \$(SOURCE)/$source \$(TARGET)/$rot
+\tcp -p \$(TARGET)/$rot \$(TARGET)/$rot`date +'.\%Y\%m\%d\%H\%M\%S'` 2>/dev/null; install -o $owner -g $group -m $devchmod \$(SOURCE)/$source \$(TARGET)/$rot
 END
                 }
 	    }