Finish Python script that switches the release script tags in svg-editor.html. Updated Makefile

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1930 eee81c28-f429-11dd-99c0-75d572ba1ddd

Makefile

@@ -40,8 +40,8 @@ build/$(PACKAGE): $(COMPILED_JS)
 	# Remove all hidden .svn directories
 	-find build/$(PACKAGE) -name .svn -type d | xargs rm -rf {} \;
 
-	# Remove all JS files that were compiled
-	rm $(JS_BUILD_FILES)
+	# Create the release version of the main HTML file.
+	build/tools/ship.py --i=editor/svg-editor.html --on=svg_edit_release > build/$(PACKAGE)/svg-editor.html
 
 # codedread: NOTE: Some files are not ready for the Closure compiler: (jquery)
 $(COMPILED_JS):
@@ -75,4 +75,8 @@ clean:
 	rm -rf build/$(PACKAGE)
 	rm -rf build/firefox
 	rm -rf build/opera
+	rm -rf build/$(PACKAGE).zip
+	rm -rf build/$(PACKAGE)-src.tar.gz
+	rm -rf build/$(PACKAGE).xpi
+	rm -rf build/$(PACKAGE).wgt
 	rm -rf $(COMPILED_JS)

build/tools/ship.py

@@ -4,16 +4,19 @@
 # ship.py
 #
 # Licensed under the Apache 2 License as is the rest of the project
-#
 # Copyright (c) 2011 Jeff Schiller
 #
+# This script has very little real-world application.  It is only used in our pure-client web 
+# app served on GoogleCode so we can have one HTML file, run a build script and generate a 'release'
+# version without having to maintain two separate HTML files.
+#
 # This script takes the following inputs:
 #
-# * a HTML file
-# * a series of flag names
+# * a HTML file (--i=in.html)
+# * a series of flag names (--on=Foo --on=Bar)
 #
-# It parses, the HTML file, enables/disables sections of the makrup based
-# on conditional comments and flag values, then outputs a new HTML file.
+# It parses, the HTML file, enables/disables sections of the markup based
+# on if-else comments and flag values, then outputs a new HTML file.
 #
 # Example:
 #
@@ -24,7 +27,7 @@
 #     BAR!
 #   <!--{endif}-->
 #
-# $ ship.py --i in.html --o test-out.html --enable foo
+# $ ship.py --i in.html --on foo
 #
 # out.html:
 #   <!--{if foo}-->
@@ -33,30 +36,117 @@
 #     BAR!
 #   <!{endif}-->
 #
-# Only if-else-endif are currently supported.  All conditional comment expressions must
-# be on one line with no other non-whitespace characters.
+# It has the following limitations:
+#
+# 1) Only if-else-endif are currently supported.
+# 2) All processing comments must be on one line with no other non-whitespace characters.
+# 3) Comments cannot be nested.
 
 import optparse
+import os
+
+inside_if = False
+last_if_true = False
 
 _options_parser = optparse.OptionParser(
-	usage="%prog --i input.svg --o output.svg [--enable flag1]",
-	description=("Hello world!"))
-_options_parser.add_option("--i",
-	action="store", dest="input_html_file", help="Input HTML filename")
-_options_parser.add_option("--o",
-	action="store", dest="output_html_file", help="Output HTML filename")
-_options_parser.add_option("--on",
-	action="append", type="string", dest="enabled_flags",
-	help="name of flag to enable")
+	usage='%prog --i input.html [--on flag1]',
+	description=('Rewrites an HTML file based on conditional comments and flags'))
+_options_parser.add_option('--i',
+	action='store', dest='input_html_file', help='Input HTML filename')
+_options_parser.add_option('--on',
+	action='append', type='string', dest='enabled_flags',
+	help='name of flag to enable')
 
 def parse_args(args=None):
-	options, rargs = _options_parser.parse_args(args)
-	print options
+  options, rargs = _options_parser.parse_args(args)
+  return options, (None, None)
 
-	if rargs:
-		_options_parser.error("Additional arguments not handled: %r, see --help" % rargs)
+def parseComment(line, line_num, enabled_flags):
+  global inside_if
+  global last_if_true
 
-	return options, (None, None)
+  start = line.find('{')
+  end = line.find('}')
+  statement = line[start+1:end].strip()
+  if statement.startswith('if '):
+    if inside_if == True:
+      print 'Fatal Error: Nested {if} found on line ' + str(line_num)
+      print line
+      quit()
+
+    # Evaluate whether the expression is true/false.
+    # only one variable name allowed for now
+    variable_name = statement[3:].strip()
+    if variable_name in enabled_flags:
+      last_if_true = True
+      line = '<!--{if ' + variable_name + '}-->'
+    else:
+      last_if_true = False
+      line = '<!--{if ' + variable_name + '}>'
+
+    inside_if = True
+
+  elif statement == 'else':
+    if inside_if == False:
+      print 'Fatal Error: {else} found without {if} on line ' + str(line_num)
+      print line
+      quit()
+
+    if last_if_true:
+      line = '<!--{else}>'
+    else:
+      line = '<!{else}-->'
+
+    # invert the logic so the endif clause is closed properly
+    last_if_true = not last_if_true
+
+  elif statement == 'endif':
+    if inside_if == False:
+      print 'Fatal Error: {endif} found without {if} on line ' + str(line_num)
+      print line
+      quit()
+
+    if last_if_true:
+      line = '<!--{endif}-->'
+    else:
+      line = '<!{endif}-->'
+
+    inside_if = False
+
+  return line
+
+
+def ship(inFileName, enabled_flags):
+  # read in HTML file
+  in_file = file(inFileName, 'r')
+
+  i = 0
+  lines = in_file.readlines()
+
+  out_lines = []
+
+  # loop for each line of markup
+  for line in lines:
+    strline = line.strip()
+    # if we find a comment, process it and print out
+    if strline.startswith('<!--{') or strline.startswith('<!{'):
+      # using the same indentation as the previous line
+      start = line.find('<')
+      out_lines.append(line[:start] \
+        + parseComment(strline, i, enabled_flags) \
+        + os.linesep)
+    else: # else append line to the output list
+      out_lines.append(line)
+    i += 1
+  
+  return ''.join(out_lines)
 
 if __name__ == '__main__':
   options, (input, output) = parse_args()
+
+  if options.input_html_file != None:
+    enabled_flags = []
+    if options.enabled_flags != None:
+      enabled_flags.extend(options.enabled_flags)
+    out_file = ship(options.input_html_file, enabled_flags)
+    print out_file

editor/svg-editor.html

@@ -25,7 +25,7 @@
 
 <!--{if svg_edit_release}>
   <script type="text/javascript" src="svgedit.compiled.js"></script>
-<{else}-->
+<!{else}-->
   <script type="text/javascript" src="browser.js"></script>
   <script type="text/javascript" src="svgtransformlist.js"></script>
   <script type="text/javascript" src="math.js"></script>