// Copyright 2016 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package config
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import (
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"android/soong/android"
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"strings"
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)
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func init() {
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// Most Android source files are not clang-tidy clean yet.
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// Global tidy checks include only google*, performance*,
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// and misc-macro-parentheses, but not google-readability*
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// or google-runtime-references.
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pctx.VariableFunc("TidyDefaultGlobalChecks", func(ctx android.PackageVarContext) string {
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if override := ctx.Config().Getenv("DEFAULT_GLOBAL_TIDY_CHECKS"); override != "" {
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return override
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}
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return strings.Join([]string{
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"-*",
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"clang-diagnostic-unused-command-line-argument",
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"google*",
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"misc-macro-parentheses",
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"performance*",
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"-google-readability*",
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"-google-runtime-references",
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}, ",")
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})
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// There are too many clang-tidy warnings in external and vendor projects.
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// Enable only some google checks for these projects.
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pctx.VariableFunc("TidyExternalVendorChecks", func(ctx android.PackageVarContext) string {
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if override := ctx.Config().Getenv("DEFAULT_EXTERNAL_VENDOR_TIDY_CHECKS"); override != "" {
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return override
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}
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return strings.Join([]string{
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"-*",
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"clang-diagnostic-unused-command-line-argument",
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"google*",
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"-google-build-using-namespace",
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"-google-default-arguments",
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"-google-explicit-constructor",
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"-google-readability*",
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"-google-runtime-int",
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"-google-runtime-references",
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}, ",")
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})
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// Give warnings to header files only in selected directories.
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// Do not give warnings to external or vendor header files, which contain too
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// many warnings.
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pctx.VariableFunc("TidyDefaultHeaderDirs", func(ctx android.PackageVarContext) string {
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if override := ctx.Config().Getenv("DEFAULT_TIDY_HEADER_DIRS"); override != "" {
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return override
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}
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return strings.Join([]string{
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"art/",
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"bionic/",
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"bootable/",
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"build/",
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"cts/",
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"dalvik/",
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"developers/",
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"development/",
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"frameworks/",
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"libcore/",
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"libnativehelper/",
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"system/",
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}, "|")
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})
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// Use WTIH_TIDY_FLAGS to pass extra global default clang-tidy flags.
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pctx.VariableFunc("TidyWithTidyFlags", func(ctx android.PackageVarContext) string {
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return ctx.Config().Getenv("WITH_TIDY_FLAGS")
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})
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}
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type PathBasedTidyCheck struct {
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PathPrefix string
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Checks string
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}
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const tidyDefault = "${config.TidyDefaultGlobalChecks}"
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const tidyExternalVendor = "${config.TidyExternalVendorChecks}"
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// This is a map of local path prefixes to the set of default clang-tidy checks
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// to be used.
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// The last matched local_path_prefix should be the most specific to be used.
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var DefaultLocalTidyChecks = []PathBasedTidyCheck{
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{"external/", tidyExternalVendor},
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{"external/google", tidyDefault},
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{"external/webrtc", tidyDefault},
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{"frameworks/compile/mclinker/", tidyExternalVendor},
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{"hardware/qcom", tidyExternalVendor},
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{"vendor/", tidyExternalVendor},
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{"vendor/google", tidyDefault},
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{"vendor/google_devices", tidyExternalVendor},
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}
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var reversedDefaultLocalTidyChecks = reverseTidyChecks(DefaultLocalTidyChecks)
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func reverseTidyChecks(in []PathBasedTidyCheck) []PathBasedTidyCheck {
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ret := make([]PathBasedTidyCheck, len(in))
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for i, check := range in {
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ret[len(in)-i-1] = check
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}
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return ret
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}
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func TidyChecksForDir(dir string) string {
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for _, pathCheck := range reversedDefaultLocalTidyChecks {
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if strings.HasPrefix(dir, pathCheck.PathPrefix) {
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return pathCheck.Checks
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}
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}
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return tidyDefault
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}
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