Build: Better error handling from build scripts.

4 files changed, 19 insertions, 7 deletions

diff --git a/scripts/build/bib2texi.py b/scripts/build/bib2texi.py
index ab8a6b902b..c71976dec1 100644
--- a/scripts/build/bib2texi.py
+++ b/scripts/build/bib2texi.py
@@ -69,15 +69,21 @@ cmd = "TEXMFOUTPUT=%s bibtex %s %s" % (tmpdir, quiet_flag, tmpfile)
 
 if (show_output):
     sys.stdout.write ("Running bibtex on %s\n" % files)
+    sys.stdout.write (cmd)
 #And invoke it
 stat = os.system (cmd)
 if stat <> 0:
-    sys.exit(1)
+    sys.stderr.write ("Bibtex exited with nonzero exit status!")
+    sys.exit (1)
 
 #TODO: do tex -> itexi on output
-# Following 2 lines copy tmpfile.bbl to the desired output file
+# Following lines copy tmpfile.bbl to the desired output file
 bbl = open (tmpfile + '.bbl').read ()
 
+if bbl.strip () == '':
+    sys.stderr.write ("Bibtex generated an empty file!")
+    sys.exit (1)
+
 open (output, 'w').write  (bbl)
 
 def cleanup (tmpfile):
diff --git a/scripts/build/genicon.py b/scripts/build/genicon.py
index 543735240f..b96730b769 100644
--- a/scripts/build/genicon.py
+++ b/scripts/build/genicon.py
@@ -15,7 +15,7 @@ os.chdir(dir)
 def system (c):
     print c
     if os.system (c):
-        raise 'barf'
+        raise Exception('The command exited with nonzero exit status!')
 
 outputs = []
 for sz in [48,32,16] :
diff --git a/scripts/build/mf-to-table.py b/scripts/build/mf-to-table.py
index 44f0edc33a..f191d0aa8f 100644
--- a/scripts/build/mf-to-table.py
+++ b/scripts/build/mf-to-table.py
@@ -27,7 +27,7 @@ import time
 
 def read_log_file (fn):
     str = open (fn).read ()
-    str = re.sub ('\n', '', str)
+    str = re.sub ('[\n\r]', '', str)
     str = re.sub ('[\t ]+', ' ', str)
 
     deps = []
@@ -61,14 +61,20 @@ def parse_logfile (fn):
         }
     group = ''
 
-    for l in autolines:
+    for i, l in enumerate(autolines):
         tags = l.split ('@:')
         if tags[0] == 'group':
             group = tags[1]
         elif tags[0] == 'puorg':
             group = ''
         elif tags[0] == 'char':
-            name = tags[9]
+            try:
+                name = tags[9]
+            except IndexError:
+                print 'Error in mf-to-table while processing file', fn
+                print 'Index 9 >', len(tags)-1, 'on line', i
+                print l
+                raise
 
             if group:
                 name = group + '.' + name
diff --git a/scripts/build/mf2pt1.pl b/scripts/build/mf2pt1.pl
index 3a39a126d4..befe8bc3e2 100644
--- a/scripts/build/mf2pt1.pl
+++ b/scripts/build/mf2pt1.pl
@@ -427,7 +427,7 @@ ENDHEADER
 sub get_bboxes ($)
 {
     execute_command 1, ("mpost", "-mem=mf2pt1", "-progname=mpost",
-                        "\\mode:=localfont; mag:=$mag; bpppix $bpppix; input $mffile");
+                        "\\mode:=localfont; mag:=$mag; bpppix $bpppix; nonstopmode; input $mffile");
     opendir (CURDIR, ".") || die "${progname}: $! ($filedir)\n";
     @charfiles = sort
                    { ($a=~ /\.(\d+)$/)[0] <=> ($b=~ /\.(\d+)$/)[0] }