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1 #!/usr/bin/python | 1 #!/usr/bin/python |
2 # Copyright 2014 The Chromium Authors. All rights reserved. | 2 # Copyright 2014 The Chromium Authors. All rights reserved. |
3 # Use of this source code is governed by a BSD-style license that can be | 3 # Use of this source code is governed by a BSD-style license that can be |
4 # found in the LICENSE file. | 4 # found in the LICENSE file. |
5 | 5 |
6 """Runs Closure compiler on a JavaScript file to check for errors.""" | 6 """Runs Closure compiler on a JavaScript file to check for errors.""" |
7 | 7 |
8 import argparse | 8 import argparse |
9 import os | 9 import os |
10 import re | 10 import re |
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37 "--jscomp_error=missingReturn", | 37 "--jscomp_error=missingReturn", |
38 "--jscomp_error=nonStandardJsDocs", | 38 "--jscomp_error=nonStandardJsDocs", |
39 "--jscomp_error=suspiciousCode", | 39 "--jscomp_error=suspiciousCode", |
40 "--jscomp_error=undefinedNames", | 40 "--jscomp_error=undefinedNames", |
41 "--jscomp_error=undefinedVars", | 41 "--jscomp_error=undefinedVars", |
42 "--jscomp_error=unknownDefines", | 42 "--jscomp_error=unknownDefines", |
43 "--jscomp_error=uselessCode", | 43 "--jscomp_error=uselessCode", |
44 "--jscomp_error=visibility", | 44 "--jscomp_error=visibility", |
45 "--language_in=ECMASCRIPT5_STRICT", | 45 "--language_in=ECMASCRIPT5_STRICT", |
46 "--summary_detail_level=3", | 46 "--summary_detail_level=3", |
47 "--compilation_level=WHITESPACE_ONLY", | |
48 "--source_map_format=V3", | |
47 ] | 49 ] |
48 | 50 |
49 # These are the extra flags used when compiling in 'strict' mode. | 51 # These are the extra flags used when compiling in 'strict' mode. |
50 # Flags that are normally disabled are turned on for strict mode. | 52 # Flags that are normally disabled are turned on for strict mode. |
51 _STRICT_CLOSURE_ARGS = [ | 53 _STRICT_CLOSURE_ARGS = [ |
52 "--jscomp_error=reportUnknownTypes", | 54 "--jscomp_error=reportUnknownTypes", |
53 "--jscomp_error=duplicate", | 55 "--jscomp_error=duplicate", |
54 "--jscomp_error=misplacedTypeAnnotation", | 56 "--jscomp_error=misplacedTypeAnnotation", |
55 ] | 57 ] |
56 | 58 |
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170 errors = filter(None, errors) | 172 errors = filter(None, errors) |
171 contents = "\n## ".join("\n\n".join(errors).splitlines()) | 173 contents = "\n## ".join("\n\n".join(errors).splitlines()) |
172 return "## %s" % contents if contents else "" | 174 return "## %s" % contents if contents else "" |
173 | 175 |
174 def _create_temp_file(self, contents): | 176 def _create_temp_file(self, contents): |
175 with tempfile.NamedTemporaryFile(mode="wt", delete=False) as tmp_file: | 177 with tempfile.NamedTemporaryFile(mode="wt", delete=False) as tmp_file: |
176 self._temp_files.append(tmp_file.name) | 178 self._temp_files.append(tmp_file.name) |
177 tmp_file.write(contents) | 179 tmp_file.write(contents) |
178 return tmp_file.name | 180 return tmp_file.name |
179 | 181 |
180 def run_js_check(self, sources, externs=None): | 182 def run_js_check(self, sources, out_file=None, externs=None): |
Dan Beam
2015/03/07 00:43:54
can you make this private (i.e. _run_js_check)?
Theresa
2015/03/07 00:54:18
Done.
| |
181 if not self._check_java_path(): | 183 if not self._check_java_path(): |
182 return 1, "" | 184 return 1, "" |
183 | 185 |
184 args = ["--js=%s" % s for s in sources] | 186 args = ["--js=%s" % s for s in sources] |
187 | |
188 if out_file: | |
189 args += ["--js_output_file=%s" % out_file] | |
190 args += ["--create_source_map=%s.map" % out_file] | |
191 | |
185 if externs: | 192 if externs: |
186 args += ["--externs=%s" % e for e in externs] | 193 args += ["--externs=%s" % e for e in externs] |
187 args_file_content = " %s" % " ".join(self._common_args() + args) | 194 args_file_content = " %s" % " ".join(self._common_args() + args) |
188 self._debug("Args: %s" % args_file_content.strip()) | 195 self._debug("Args: %s" % args_file_content.strip()) |
189 | 196 |
190 args_file = self._create_temp_file(args_file_content) | 197 args_file = self._create_temp_file(args_file_content) |
191 self._debug("Args file: %s" % args_file) | 198 self._debug("Args file: %s" % args_file) |
192 | 199 |
193 runner_args = ["--compiler-args-file=%s" % args_file] | 200 runner_args = ["--compiler-args-file=%s" % args_file] |
194 runner_cmd = self._run_jar(self._runner_jar, args=runner_args) | 201 runner_cmd = self._run_jar(self._runner_jar, args=runner_args) |
195 _, stderr = runner_cmd.communicate() | 202 _, stderr = runner_cmd.communicate() |
196 | 203 |
197 errors = stderr.strip().split("\n\n") | 204 errors = stderr.strip().split("\n\n") |
198 self._debug("Summary: %s" % errors.pop()) | 205 self._debug("Summary: %s" % errors.pop()) |
199 | 206 |
200 self._clean_up() | 207 self._clean_up() |
201 | 208 |
202 return errors, stderr | 209 return errors, stderr |
203 | 210 |
204 def check(self, source_file, depends=None, externs=None): | 211 def check(self, source_file, out_file=None, depends=None, externs=None): |
205 """Closure compile a file and check for errors. | 212 """Closure compile a file and check for errors. |
206 | 213 |
207 Args: | 214 Args: |
208 source_file: A file to check. | 215 source_file: A file to check. |
209 depends: Other files that would be included with a <script> earlier in | 216 depends: Other files that would be included with a <script> earlier in |
210 the page. | 217 the page. |
211 externs: @extern files that inform the compiler about custom globals. | 218 externs: @extern files that inform the compiler about custom globals. |
Dan Beam
2015/03/07 00:43:54
update py doc
Theresa
2015/03/07 00:54:18
Done.
| |
212 | 219 |
213 Returns: | 220 Returns: |
214 (has_errors, output) A boolean indicating if there were errors and the | 221 (has_errors, output) A boolean indicating if there were errors and the |
215 Closure compiler output (as a string). | 222 Closure compiler output (as a string). |
216 """ | 223 """ |
217 depends = depends or [] | 224 depends = depends or [] |
218 externs = externs or set() | 225 externs = externs or set() |
219 | 226 |
220 if not self._check_java_path(): | 227 if not self._check_java_path(): |
221 return 1, "" | 228 return 1, "" |
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233 | 240 |
234 includes = [rel_path(f) for f in depends + [source_file]] | 241 includes = [rel_path(f) for f in depends + [source_file]] |
235 contents = ['<include src="%s">' % i for i in includes] | 242 contents = ['<include src="%s">' % i for i in includes] |
236 meta_file = self._create_temp_file("\n".join(contents)) | 243 meta_file = self._create_temp_file("\n".join(contents)) |
237 self._debug("Meta file: %s" % meta_file) | 244 self._debug("Meta file: %s" % meta_file) |
238 | 245 |
239 self._processor = processor.Processor(meta_file) | 246 self._processor = processor.Processor(meta_file) |
240 self._expanded_file = self._create_temp_file(self._processor.contents) | 247 self._expanded_file = self._create_temp_file(self._processor.contents) |
241 self._debug("Expanded file: %s" % self._expanded_file) | 248 self._debug("Expanded file: %s" % self._expanded_file) |
242 | 249 |
243 errors, stderr = self.run_js_check([self._expanded_file], externs) | 250 errors, stderr = self.run_js_check([self._expanded_file], out_file, |
251 externs) | |
Dan Beam
2015/03/07 00:43:54
out_file=out_file, externs=externs
Theresa
2015/03/07 00:54:18
Done.
| |
244 | 252 |
245 # Filter out false-positive promise chain errors. | 253 # Filter out false-positive promise chain errors. |
246 # See https://github.com/google/closure-compiler/issues/715 for details. | 254 # See https://github.com/google/closure-compiler/issues/715 for details. |
247 errors = self._error_filter.filter(errors); | 255 errors = self._error_filter.filter(errors); |
248 | 256 |
249 output = self._format_errors(map(self._fix_up_error, errors)) | 257 output = self._format_errors(map(self._fix_up_error, errors)) |
250 if errors: | 258 if errors: |
251 prefix = "\n" if output else "" | 259 prefix = "\n" if output else "" |
252 self._error("Error in: %s%s%s" % (source_file, prefix, output)) | 260 self._error("Error in: %s%s%s" % (source_file, prefix, output)) |
253 elif output: | 261 elif output: |
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289 parser.add_argument("--strict", action="store_true", | 297 parser.add_argument("--strict", action="store_true", |
290 help="Enable strict type checking") | 298 help="Enable strict type checking") |
291 parser.add_argument("--success-stamp", | 299 parser.add_argument("--success-stamp", |
292 help="Timestamp file to update upon success") | 300 help="Timestamp file to update upon success") |
293 | 301 |
294 parser.set_defaults(single_file=True, strict=False) | 302 parser.set_defaults(single_file=True, strict=False) |
295 opts = parser.parse_args() | 303 opts = parser.parse_args() |
296 | 304 |
297 depends = opts.depends or [] | 305 depends = opts.depends or [] |
298 externs = opts.externs or set() | 306 externs = opts.externs or set() |
307 out_file = opts.out_file or None | |
Dan Beam
2015/03/07 00:43:54
is this needed?
i don't remember why i did this f
Theresa
2015/03/07 00:54:18
It's not needed, removed.
| |
308 | |
309 if out_file: | |
310 out_dir = os.path.dirname(out_file) | |
311 if not os.path.exists(out_dir): | |
312 os.makedirs(out_dir) | |
299 | 313 |
300 checker = Checker(verbose=opts.verbose, strict=opts.strict) | 314 checker = Checker(verbose=opts.verbose, strict=opts.strict) |
301 if opts.single_file: | 315 if opts.single_file: |
302 for source in opts.sources: | 316 for source in opts.sources: |
303 depends, externs = build.inputs.resolve_recursive_dependencies( | 317 depends, externs = build.inputs.resolve_recursive_dependencies( |
304 source, | 318 source, |
305 depends, | 319 depends, |
306 externs) | 320 externs) |
307 has_errors, _ = checker.check(source, depends=depends, externs=externs) | 321 has_errors, _ = checker.check(source, out_file=out_file, depends=depends, |
322 externs=externs) | |
308 if has_errors: | 323 if has_errors: |
309 sys.exit(1) | 324 sys.exit(1) |
310 | 325 |
311 if opts.out_file: | |
312 out_dir = os.path.dirname(opts.out_file) | |
313 if not os.path.exists(out_dir): | |
314 os.makedirs(out_dir) | |
315 # TODO(dbeam): write compiled file to |opts.out_file|. | |
316 open(opts.out_file, "w").write("") | |
317 else: | 326 else: |
318 has_errors, errors = checker.check_multiple(opts.sources) | 327 has_errors, errors = checker.check_multiple(opts.sources) |
319 if has_errors: | 328 if has_errors: |
320 print errors | 329 print errors |
321 sys.exit(1) | 330 sys.exit(1) |
322 | 331 |
323 if opts.success_stamp: | 332 if opts.success_stamp: |
324 with open(opts.success_stamp, 'w'): | 333 with open(opts.success_stamp, 'w'): |
325 os.utime(opts.success_stamp, None) | 334 os.utime(opts.success_stamp, None) |
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