pmb.helpers.lint: add simple linting (!1855)

Run linting, just like in pmaports.git CI checks. Start with
apkbuild-lint, eventually this should run all checks.

Related: #1869

pmb/helpers/lint.py

@@ -0,0 +1,37 @@
+"""
+Copyright 2020 Danct12 <danct12@disroot.org>
+
+This file is part of pmbootstrap.
+
+pmbootstrap is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+pmbootstrap is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with pmbootstrap.  If not, see <http://www.gnu.org/licenses/>.
+"""
+import logging
+
+import pmb.chroot
+import pmb.chroot.apk
+import pmb.build
+import pmb.helpers.run
+import pmb.helpers.pmaports
+
+
+def check(args, pkgname):
+    pmb.chroot.apk.install(args, ["atools"])
+
+    # Run apkbuild-lint on copy of pmaport in chroot
+    pmb.build.init(args)
+    pmb.build.copy_to_buildpath(args, pkgname)
+    logging.info("(native) linting " + pkgname + " with apkbuild-lint")
+    pmb.chroot.user(args, ["apkbuild-lint", "APKBUILD"],
+                    check=False, output="stdout",
+                    working_dir="/home/pmos/build")