1 files changed, 136 insertions, 0 deletions
diff --git a/tools/lint/mach_commands.py b/tools/lint/mach_commands.py
new file mode 100644
index 0000000000..9a424de24d
--- /dev/null
+++ b/tools/lint/mach_commands.py
@@ -0,0 +1,136 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import argparse
+import copy
+import os
+
+from mozbuild.base import (
+    BuildEnvironmentNotFoundException,
+    MachCommandBase,
+)
+
+
+from mach.decorators import (
+    CommandArgument,
+    CommandProvider,
+    Command,
+)
+
+
+here = os.path.abspath(os.path.dirname(__file__))
+EXCLUSION_FILES = [
+    os.path.join("tools", "rewriting", "Generated.txt"),
+    os.path.join("tools", "rewriting", "ThirdPartyPaths.txt"),
+]
+
+EXCLUSION_FILES_OPTIONAL = []
+thunderbird_excludes = os.path.join("comm", "tools", "lint", "GlobalExclude.txt")
+if os.path.exists(thunderbird_excludes):
+    EXCLUSION_FILES_OPTIONAL.append(thunderbird_excludes)
+
+GLOBAL_EXCLUDES = [
+    "node_modules",
+    "tools/lint/test/files",
+]
+
+
+def setup_argument_parser():
+    from mozlint import cli
+
+    return cli.MozlintParser()
+
+
+def get_global_excludes(topsrcdir):
+    # exclude misc paths
+    excludes = GLOBAL_EXCLUDES[:]
+
+    # exclude top level paths that look like objdirs
+    excludes.extend(
+        [
+            name
+            for name in os.listdir(topsrcdir)
+            if name.startswith("obj") and os.path.isdir(name)
+        ]
+    )
+
+    for path in EXCLUSION_FILES + EXCLUSION_FILES_OPTIONAL:
+        with open(os.path.join(topsrcdir, path), "r") as fh:
+            excludes.extend([f.strip() for f in fh.readlines()])
+
+    return excludes
+
+
+@CommandProvider
+class MachCommands(MachCommandBase):
+    @Command(
+        "lint",
+        category="devenv",
+        description="Run linters.",
+        parser=setup_argument_parser,
+    )
+    def lint(self, *runargs, **lintargs):
+        """Run linters."""
+        self.activate_virtualenv()
+        from mozlint import cli, parser
+
+        try:
+            buildargs = {}
+            buildargs["substs"] = copy.deepcopy(dict(self.substs))
+            buildargs["defines"] = copy.deepcopy(dict(self.defines))
+            buildargs["topobjdir"] = self.topobjdir
+            lintargs.update(buildargs)
+        except BuildEnvironmentNotFoundException:
+            pass
+
+        lintargs.setdefault("root", self.topsrcdir)
+        lintargs["exclude"] = get_global_excludes(lintargs["root"])
+        lintargs["config_paths"].insert(0, here)
+        lintargs["virtualenv_bin_path"] = self.virtualenv_manager.bin_path
+        lintargs["virtualenv_manager"] = self.virtualenv_manager
+        for path in EXCLUSION_FILES:
+            parser.GLOBAL_SUPPORT_FILES.append(os.path.join(self.topsrcdir, path))
+        return cli.run(*runargs, **lintargs)
+
+    @Command(
+        "eslint",
+        category="devenv",
+        description="Run eslint or help configure eslint for optimal development.",
+    )
+    @CommandArgument(
+        "paths",
+        default=None,
+        nargs="*",
+        help="Paths to file or directories to lint, like "
+        "'browser/' Defaults to the "
+        "current directory if not given.",
+    )
+    @CommandArgument(
+        "-s",
+        "--setup",
+        default=False,
+        action="store_true",
+        help="Configure eslint for optimal development.",
+    )
+    @CommandArgument("-b", "--binary", default=None, help="Path to eslint binary.")
+    @CommandArgument(
+        "--fix",
+        default=False,
+        action="store_true",
+        help="Request that eslint automatically fix errors, where possible.",
+    )
+    @CommandArgument(
+        "extra_args",
+        nargs=argparse.REMAINDER,
+        help="Extra args that will be forwarded to eslint.",
+    )
+    def eslint(self, paths, extra_args=[], **kwargs):
+        self._mach_context.commands.dispatch(
+            "lint",
+            self._mach_context,
+            linters=["eslint"],
+            paths=paths,
+            argv=extra_args,
+            **kwargs
+        )