reworked command line options

git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@152 4cde692c-a291-49d1-8350-778aa11640f8

ttCompile.py

@@ -1,26 +1,37 @@
 #! /usr/bin/env python
 
 """\
-usage: %s [-hvb] [-i TrueType-input-file] TTX-file [TrueType-output-file]
-    Translate an TTX file (as output by ttDump.py) to a TrueType font file. 
-    If the TTX-file argument is a directory instead of a file, all files in
+usage: %s [-hvbf] [-d output-dir] [-i TTF-input-file] [TTX-file...]
+
+    Translate a TTX file (as output by ttDump) to a TrueType font file. 
+    If a TTX-file argument is a directory instead of a file, all files in
     that directory ending in '.ttx' will be merged into one TrueType file. 
     This is mostly useful in conjunction with the -s option of ttDump.py.
 
     Options:
-    -i TrueType-input-file: specify a TT file to be merged with the TTX file(s)
-    -v verbose: messages will be written to stdout about what is being done
+    -h Help: print this message
+    -i TrueType-input-file: specify a TT file to be merged with the TTX file.
+       This option is only valid when at most one TTX file (or directory
+       containing separated TTX files) is specified.
     -b Don't recalc glyph boundig boxes: use the values in the TTX file as-is.
-    -h help: print this message
+    -d <output-dir> Specify a directory in which the output file(s)
+       should end up. The directory must exist.
+    -f Force overwriting existing files.
+    -v Verbose: messages will be written to stdout about what is being done
 """
+
 import sys, os, getopt
 from fontTools import ttLib
 
-options, args = getopt.getopt(sys.argv[1:], "hvi:b")
+options, args = getopt.getopt(sys.argv[1:], "hvbfd:i:")
 
+# default values
 verbose = 0
 ttInFile = None
 recalcBBoxes = 1
+forceOverwrite = 0
+outputDir = None
+
 for option, value in options:
 	if option == "-i":
 		ttInFile = value
@@ -31,32 +42,46 @@ for option, value in options:
 		sys.exit(0)
 	elif option == "-b":
 		recalcBBoxes = 0
+	elif option == "-d":
+		outputDir = value
+	elif option == "-f":
+		forceOverwrite = 1
 
-if len(args) == 1:
-	xmlPath = args[0]
-	name, ext = os.path.splitext(xmlPath)
-	ttPath = name + '.ttf'
-elif len(args) == 2:
-	xmlPath, ttPath = args
-else:
+if not args:
 	print __doc__ % sys.argv[0]
 	sys.exit(2)
 
+if ttInFile and len(args) > 1:
+	print "Must specify exactly one TTX file (or directory) when using -i"
+	sys.exit(2)
+
+
+for xmlPath in args:
+	path, ext = os.path.splitext(xmlPath)
+	if outputDir is not None:
+		fileName = os.path.basename(path)
+		path = os.path.join(outputDir, fileName)
+	ttPath = path + '.ttf'
+	
+	if not forceOverwrite and os.path.exists(ttPath):
+		answer = raw_input('Overwrite "%s"? ' % ttPath)
+		if not answer[:1] in ("Y", "y"):
+			print "skipped."
+			continue
+	
 	tt = ttLib.TTFont(ttInFile, recalcBBoxes=recalcBBoxes, verbose=verbose)
 
 	if os.path.isdir(xmlPath):
 		import glob
-	oldDir = os.getcwd()
-	os.chdir(xmlPath)
-	files = glob.glob("*.ttx")
-	os.chdir(oldDir)
+		files = glob.glob1(xmlPath, "*.ttx")
 		for xmlFile in files:
 			xmlFile = os.path.join(xmlPath, xmlFile)
 			tt.importXML(xmlFile)
 	else:
 		tt.importXML(xmlPath)
+
 	tt.save(ttPath)
-del tt
+
 	if verbose:
 		import time
 		print "%s finished at" % sys.argv[0], time.strftime("%H:%M:%S", time.localtime(time.time()))