cd767eefe5
This reverts commit 67eee7cae4.
Reason for revert: Broke renderscript build
Change-Id: Ie26b3c7a78afe44d719f399520e643174109593f
132 lines
4 KiB
Go
132 lines
4 KiB
Go
// Copyright 2017 Google Inc. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package build
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"path/filepath"
|
|
"runtime"
|
|
"sort"
|
|
"strings"
|
|
|
|
"android/soong/ui/metrics"
|
|
"android/soong/ui/status"
|
|
)
|
|
|
|
// Checks for files in the out directory that have a rule that depends on them but no rule to
|
|
// create them. This catches a common set of build failures where a rule to generate a file is
|
|
// deleted (either by deleting a module in an Android.mk file, or by modifying the build system
|
|
// incorrectly). These failures are often not caught by a local incremental build because the
|
|
// previously built files are still present in the output directory.
|
|
func testForDanglingRules(ctx Context, config Config) {
|
|
// Many modules are disabled on mac. Checking for dangling rules would cause lots of build
|
|
// breakages, and presubmit wouldn't catch them, so just disable the check.
|
|
if runtime.GOOS != "linux" {
|
|
return
|
|
}
|
|
|
|
ctx.BeginTrace(metrics.TestRun, "test for dangling rules")
|
|
defer ctx.EndTrace()
|
|
|
|
ts := ctx.Status.StartTool()
|
|
action := &status.Action{
|
|
Description: "Test for dangling rules",
|
|
}
|
|
ts.StartAction(action)
|
|
|
|
// Get a list of leaf nodes in the dependency graph from ninja
|
|
executable := config.PrebuiltBuildTool("ninja")
|
|
|
|
common_args := []string{}
|
|
common_args = append(common_args, config.NinjaArgs()...)
|
|
common_args = append(common_args, "-f", config.CombinedNinjaFile())
|
|
args := append(common_args, "-t", "targets", "rule")
|
|
|
|
cmd := Command(ctx, config, "ninja", executable, args...)
|
|
stdout, err := cmd.StdoutPipe()
|
|
if err != nil {
|
|
ctx.Fatal(err)
|
|
}
|
|
|
|
cmd.StartOrFatal()
|
|
|
|
outDir := config.OutDir()
|
|
bootstrapDir := filepath.Join(outDir, "soong", ".bootstrap")
|
|
miniBootstrapDir := filepath.Join(outDir, "soong", ".minibootstrap")
|
|
|
|
danglingRules := make(map[string]bool)
|
|
|
|
scanner := bufio.NewScanner(stdout)
|
|
for scanner.Scan() {
|
|
line := scanner.Text()
|
|
if !strings.HasPrefix(line, outDir) {
|
|
// Leaf node is not in the out directory.
|
|
continue
|
|
}
|
|
if strings.HasPrefix(line, bootstrapDir) || strings.HasPrefix(line, miniBootstrapDir) {
|
|
// Leaf node is in one of Soong's bootstrap directories, which do not have
|
|
// full build rules in the primary build.ninja file.
|
|
continue
|
|
}
|
|
danglingRules[line] = true
|
|
}
|
|
|
|
cmd.WaitOrFatal()
|
|
|
|
var danglingRulesList []string
|
|
for rule := range danglingRules {
|
|
danglingRulesList = append(danglingRulesList, rule)
|
|
}
|
|
sort.Strings(danglingRulesList)
|
|
|
|
if len(danglingRulesList) > 0 {
|
|
sb := &strings.Builder{}
|
|
title := "Dependencies in out found with no rule to create them:"
|
|
fmt.Fprintln(sb, title)
|
|
|
|
report_lines := 1
|
|
for i, dep := range danglingRulesList {
|
|
if report_lines > 20 {
|
|
fmt.Fprintf(sb, " ... and %d more\n", len(danglingRulesList)-i)
|
|
break
|
|
}
|
|
// It's helpful to see the reverse dependencies. ninja -t query is the
|
|
// best tool we got for that. Its output starts with the dependency
|
|
// itself.
|
|
query_cmd := Command(ctx, config, "ninja", executable,
|
|
append(common_args, "-t", "query", dep)...)
|
|
query_stdout, err := query_cmd.StdoutPipe()
|
|
if err != nil {
|
|
ctx.Fatal(err)
|
|
}
|
|
query_cmd.StartOrFatal()
|
|
scanner := bufio.NewScanner(query_stdout)
|
|
for scanner.Scan() {
|
|
report_lines++
|
|
fmt.Fprintln(sb, " ", scanner.Text())
|
|
}
|
|
query_cmd.WaitOrFatal()
|
|
}
|
|
|
|
ts.FinishAction(status.ActionResult{
|
|
Action: action,
|
|
Error: fmt.Errorf(title),
|
|
Output: sb.String(),
|
|
})
|
|
ctx.Fatal("stopping")
|
|
}
|
|
ts.FinishAction(status.ActionResult{Action: action})
|
|
}
|