1 files changed, 225 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/py/lint/lint.py b/dom/canvas/test/webgl-conf/checkout/py/lint/lint.py
new file mode 100755
index 0000000000..cc84f49bd2
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/py/lint/lint.py
@@ -0,0 +1,225 @@
+#! /usr/bin/env python3
+import os
+import subprocess
+import re
+import sys
+import fnmatch
+
+from collections import defaultdict
+from optparse import OptionParser
+
+lint_root = os.path.dirname(os.path.abspath(__file__))
+repo_root = os.path.dirname(os.path.dirname(lint_root))
+
+
+def git(command, *args):
+    args = list(args)
+    proc_kwargs = {"cwd": repo_root}
+    command_line = ["git", command] + args
+
+    try:
+        return subprocess.check_output(command_line, universal_newlines=True, **proc_kwargs)
+    except subprocess.CalledProcessError:
+        raise
+
+
+def iter_files(flag=False, floder=""):
+    if floder != "" and floder != None:
+        os.chdir(repo_root)
+        for pardir, subdir, files in os.walk(floder):
+            for item in subdir + files:
+                if not os.path.isdir(os.path.join(pardir, item)):
+                    yield os.path.join(pardir, item)
+        os.chdir(lint_root)
+    else:
+        if not flag:
+            os.chdir(repo_root)
+            for pardir, subdir, files in os.walk(repo_root):
+                for item in subdir + files:
+                    if not os.path.isdir(os.path.join(pardir, item)):
+                        yield os.path.join(pardir, item).split(repo_root + "/")[1]
+            os.chdir(lint_root)
+        else:
+            for item in git("diff", "--name-status", "HEAD~1").strip().split("\n"):
+                status = item.split("\t")
+                if status[0].strip() != "D":
+                    yield status[1]
+
+
+def check_filename_space(path):
+    bname = os.path.basename(path)
+    if re.compile(" ").search(bname):
+        return [("FILENAME WHITESPACE", "Filename of %s contains white space" % path, None)]
+    return []
+
+
+def check_permission(path):
+    bname = os.path.basename(path)
+    if not re.compile('\.py$|\.sh$').search(bname):
+        if os.access(os.path.join(repo_root, path), os.X_OK):
+            return [("UNNECESSARY EXECUTABLE PERMISSION", "%s contains unnecessary executable permission" % path, None)]
+    return []
+
+
+def parse_allowlist_file(filename):
+    data = defaultdict(lambda:defaultdict(set))
+
+    with open(filename) as f:
+        for line in f:
+            line = line.strip()
+            if not line or line.startswith("#"):
+                continue
+            parts = [item.strip() for item in line.split(":")]
+            if len(parts) == 2:
+                parts.append(None)
+            else:
+                parts[-1] = int(parts[-1])
+
+            error_type, file_match, line_number = parts
+            data[file_match][error_type].add(line_number)
+
+    def inner(path, errors):
+        allowlisted = [False for item in range(len(errors))]
+
+        for file_match, allowlist_errors in data.items():
+            if fnmatch.fnmatch(path, file_match):
+                for i, (error_type, msg, line) in enumerate(errors):
+                    if "*" in allowlist_errors:
+                        allowlisted[i] = True
+                    elif error_type in allowlist_errors:
+                        allowed_lines = allowlist_errors[error_type]
+                        if None in allowed_lines or line in allowed_lines:
+                            allowlisted[i] = True
+
+        return [item for i, item in enumerate(errors) if not allowlisted[i]]
+    return inner
+
+
+_allowlist_fn = None
+def allowlist_errors(path, errors):
+    global _allowlist_fn
+
+    if _allowlist_fn is None:
+        _allowlist_fn = parse_allowlist_file(os.path.join(lint_root, "lint.allowlist"))
+    return _allowlist_fn(path, errors)
+
+
+class Regexp(object):
+    pattern = None
+    file_extensions = None
+    error = None
+    _re = None
+
+    def __init__(self):
+        self._re = re.compile(self.pattern)
+
+    def applies(self, path):
+        return (self.file_extensions is None or
+                os.path.splitext(path)[1] in self.file_extensions)
+
+    def search(self, line):
+        return self._re.search(line)
+
+
+class TrailingWhitespaceRegexp(Regexp):
+    pattern = " $"
+    error = "TRAILING WHITESPACE"
+
+
+class TabsRegexp(Regexp):
+    pattern = "^\t"
+    error = "INDENT TABS"
+
+
+class CRRegexp(Regexp):
+    pattern = "\r$"
+    error = "CR AT EOL"
+
+regexps = [item() for item in
+           [TrailingWhitespaceRegexp,
+            TabsRegexp,
+            CRRegexp]]
+
+
+def check_regexp_line(path, f):
+    errors = []
+
+    applicable_regexps = [regexp for regexp in regexps if regexp.applies(path)]
+
+    try:
+        for i, line in enumerate(f):
+            for regexp in applicable_regexps:
+                if regexp.search(line):
+                    errors.append((regexp.error, "%s line %i" % (path, i+1), i+1))
+    except UnicodeDecodeError as e:
+        return [("INVALID UNICODE", "File %s contains non-UTF-8 Unicode characters" % path, None)]
+
+    return errors
+
+
+def output_errors(errors):
+    for error_type, error, line_number in errors:
+        print("%s: %s" % (error_type, error))
+
+
+def output_error_count(error_count):
+    if not error_count:
+        return
+
+    by_type = " ".join("%s: %d" % item for item in error_count.items())
+    count = sum(error_count.values())
+    if count == 1:
+        print("There was 1 error (%s)" % (by_type,))
+    else:
+        print("There were %d errors (%s)" % (count, by_type))
+
+
+def main():
+    global repo_root
+    error_count = defaultdict(int)
+
+    parser = OptionParser()
+    parser.add_option('-p', '--pull', dest="pull_request", action='store_true', default=False)
+    parser.add_option("-d", '--dir', dest="dir", help="specify the checking dir, e.g. tools")
+    parser.add_option("-r", '--repo', dest="repo", help="specify the repo, e.g. WebGL")
+    options, args = parser.parse_args()
+    if options.pull_request == True:
+        options.pull_request = "WebGL"
+        repo_root = repo_root.replace("WebGL/sdk/tests", options.pull_request)
+    if options.repo == "" or options.repo == None:
+        options.repo = "WebGL/sdk/tests"
+    repo_root = repo_root.replace("WebGL/sdk/tests", options.repo)
+
+    def run_lint(path, fn, *args):
+        errors = allowlist_errors(path, fn(path, *args))
+        output_errors(errors)
+        for error_type, error, line in errors:
+            error_count[error_type] += 1
+
+    for path in iter_files(options.pull_request, options.dir):
+        abs_path = os.path.join(repo_root, path)
+        if not os.path.exists(abs_path):
+            continue
+        for path_fn in file_path_lints:
+            run_lint(path, path_fn)
+        for state_fn in file_state_lints:
+            run_lint(path, state_fn)
+
+        if not os.path.isdir(abs_path):
+            if re.compile('\.html$|\.htm$|\.xhtml$|\.xhtm$|\.frag$|\.vert$|\.js$').search(abs_path):
+                with open(abs_path) as f:
+                    for file_fn in file_content_lints:
+                        run_lint(path, file_fn, f)
+                        f.seek(0)
+
+    output_error_count(error_count)
+    return sum(error_count.values())
+
+file_path_lints = [check_filename_space]
+file_content_lints = [check_regexp_line]
+file_state_lints = [check_permission]
+
+if __name__ == "__main__":
+    error_count = main()
+    if error_count > 0:
+        sys.exit(1)