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1 """ Command-line tool to parse scss file. | |
2 """ | |
3 import optparse | |
4 import sys, os | |
5 import time | |
6 | |
7 from os.path import abspath, dirname, join, normpath | |
8 | |
9 COMMANDS = ['import', 'option', 'mixin', 'include', 'for', 'if', 'else'] | |
10 | |
11 | |
12 def complete(text, state): | |
13 """ Auto complete scss constructions | |
14 in interactive mode. | |
15 """ | |
16 for cmd in COMMANDS: | |
17 if cmd.startswith(text): | |
18 if not state: | |
19 return cmd | |
20 else: | |
21 state -= 1 | |
22 | |
23 def main(argv=None): | |
24 from scss import parser, VERSION | |
25 | |
26 try: | |
27 # Upgrade shell in interactive mode | |
28 import atexit | |
29 import readline | |
30 history = os.path.join(os.environ['HOME'], ".scss-history") | |
31 atexit.register(readline.write_history_file, history) | |
32 readline.parse_and_bind("tab: complete") | |
33 readline.set_completer(complete) | |
34 readline.read_history_file(history) | |
35 except ( ImportError, IOError ): | |
36 pass | |
37 | |
38 # Create options | |
39 p = optparse.OptionParser( | |
40 usage="%prog [OPTION]... [INFILE] [OUTFILE] [DARTCLASS]", | |
41 version="%prog " + VERSION, | |
42 epilog="SCSS compiler.", | |
43 description="Compile INFILE or standard input, to OUTFILE or standard ou
tput, if --dart specified DARTCLASS is the dart file name and class name.") | |
44 | |
45 p.add_option( | |
46 '-c', '--cache', action='store_true', dest='cache', | |
47 help="Create and use cache file. Only for files.") | |
48 | |
49 p.add_option( | |
50 '-i', '--interactive', action='store_true', dest='shell', | |
51 help="Run in interactive shell mode.") | |
52 | |
53 p.add_option( | |
54 '-m', '--compress', action='store_true', dest='compress', | |
55 help="Compress css output.") | |
56 | |
57 p.add_option( | |
58 '-d', '--dart', action='store_true', dest='dart', | |
59 help="Pre-process css output css file and dart class file.") | |
60 | |
61 p.add_option( | |
62 '-w', '--watch', dest='watch', | |
63 help="""Watch files or directories for changes. | |
64 The location of the generated CSS can be set using a colon: | |
65 scss -w input.scss:output.css | |
66 """) | |
67 | |
68 p.add_option( | |
69 '-S', '--no-sorted', action='store_false', dest='sort', | |
70 help="Do not sort declaration.") | |
71 | |
72 p.add_option( | |
73 '-C', '--no-comments', action='store_false', dest='comments', | |
74 help="Clear css comments.") | |
75 | |
76 p.add_option( | |
77 '-W', '--no-warnings', action='store_false', dest='warn', | |
78 help="Disable warnings.") | |
79 | |
80 opts, args = p.parse_args(argv or sys.argv[1:]) | |
81 precache = opts.cache | |
82 | |
83 # TODO(terry): Handle dart option in interactive shell. | |
84 # Interactive mode | |
85 if opts.shell: | |
86 p = parser.Stylesheet() | |
87 print 'SCSS v. %s interactive mode' % VERSION | |
88 print '================================' | |
89 print 'Ctrl+D or quit for exit' | |
90 while True: | |
91 try: | |
92 s = raw_input('>>> ').strip() | |
93 if s == 'quit': | |
94 raise EOFError | |
95 print p.loads(s) | |
96 except (EOFError, KeyboardInterrupt): | |
97 print '\nBye bye.' | |
98 break | |
99 | |
100 sys.exit() | |
101 | |
102 # Watch mode | |
103 elif opts.watch: | |
104 self, target = opts.watch.partition(':') | |
105 files = [] | |
106 if not os.path.exists(self): | |
107 print >> sys.stderr, "Path don't exist: %s" % self | |
108 sys.exit(1) | |
109 | |
110 if os.path.isdir(self): | |
111 for f in os.listdir(self): | |
112 path = os.path.join(self, f) | |
113 if os.path.isfile(path) and f.endswith('.scss'): | |
114 tpath = os.path.join(target or self, f[:-5] + '.css') | |
115 files.append([ path, tpath, 0 ]) | |
116 else: | |
117 files.append([ self, target or self[:-5] + '.css', 0 ]) | |
118 | |
119 s = parser.Stylesheet( | |
120 options=dict( | |
121 comments = opts.comments, | |
122 compress = opts.compress, | |
123 dart = opts.dart, | |
124 warn = opts.warn, | |
125 sort = opts.sort, | |
126 cache = precache, | |
127 )) | |
128 | |
129 def parse(f): | |
130 infile, outfile, mtime = f | |
131 ttime = os.path.getmtime(infile) | |
132 if mtime < ttime: | |
133 print " Parse '%s' to '%s' .. done" % ( infile, outfile ) | |
134 out = s.load(open(infile, 'r')) | |
135 open(outfile, 'w').write(out) | |
136 f[2] = os.path.getmtime(outfile) | |
137 | |
138 print 'SCSS v. %s watch mode' % VERSION | |
139 print '================================' | |
140 print 'Ctrl+C for exit\n' | |
141 while True: | |
142 try: | |
143 for f in files: | |
144 parse(f) | |
145 time.sleep(0.3) | |
146 except OSError: | |
147 pass | |
148 except KeyboardInterrupt: | |
149 print "\nSCSS stoped." | |
150 break | |
151 | |
152 sys.exit() | |
153 | |
154 # Default compile files | |
155 elif not args: | |
156 infile = sys.stdin | |
157 outfile = sys.stdout | |
158 precache = False | |
159 | |
160 elif len(args) == 1: | |
161 try: | |
162 infile = open(args[0], 'r') | |
163 outfile = sys.stdout | |
164 except IOError, e: | |
165 sys.stderr.write(str(e)) | |
166 sys.exit() | |
167 | |
168 elif len(args) == 2 or len(args) == 3: | |
169 try: | |
170 infile = open(os.path.abspath(args[0]), 'r') | |
171 outfile = open(os.path.abspath(args[1]), 'w') | |
172 except IOError, e: | |
173 sys.stderr.write(str(e)) | |
174 sys.exit() | |
175 else: | |
176 p.print_help(sys.stdout) | |
177 sys.exit() | |
178 | |
179 try: | |
180 s = parser.Stylesheet( | |
181 options=dict( | |
182 comments = opts.comments, | |
183 compress = opts.compress, | |
184 dart = opts.dart, | |
185 warn = opts.warn, | |
186 sort = opts.sort, | |
187 cache = precache, | |
188 )) | |
189 if (opts.dart and len(args) == 3): | |
190 try: | |
191 dartClass = args[2] | |
192 dartfn = os.path.abspath('%s.dart' % dartClass) | |
193 dartfile = open(dartfn, 'w') | |
194 except IOError, e: | |
195 sys.stderr.write(str(e)) | |
196 sys.exit() | |
197 | |
198 # Parse the scss file. | |
199 nodes = s.loadReturnNodes(infile) | |
200 | |
201 # Add the main CSS file to list of files pre-processed. | |
202 s.addInclude(args[0], nodes) | |
203 | |
204 # Write out CSS file. | |
205 print 'Generating CSS file %s' % os.path.abspath(args[1]) | |
206 | |
207 cssIncludes = [] | |
208 # Output all includes first. | |
209 for include in s.scssIncludes: | |
210 cssIncludes.append( | |
211 '/* ---------- Included %s file ---------- */\n\n' % include[0]) | |
212 cssIncludes.append(''.join(map(str, include[1]))) | |
213 | |
214 outfile.write('/* File generated by SCSS from source %s\n' % args[0]) | |
215 outfile.write(' * Do not edit.\n') | |
216 | |
217 outfile.write(' */\n\n%s' % ''.join(cssIncludes)) | |
218 | |
219 #Write out dart class file. | |
220 dartfile.write(s.dartClass(args[0], dartClass, s.scssIncludes)) | |
221 print 'Generating Dart Class %s' % dartfn | |
222 else: | |
223 outfile.write(s.load(infile)) | |
224 except ValueError, e: | |
225 raise SystemExit(e) | |
226 | |
227 | |
228 if __name__ == '__main__': | |
229 # Setup PYTHONPATH when starting tool (from main) to needed modules. | |
230 TOOL_PATH = dirname(dirname(abspath(__file__))) | |
231 THIRDPARTY_PATH = normpath('{0}/..'.format(TOOL_PATH)) | |
232 sys.path.append(join(THIRDPARTY_PATH, 'pyparsing/src')) | |
233 sys.path.append(TOOL_PATH) | |
234 | |
235 main() | |
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