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      1 // Copyright 2015 Google Inc. All rights reserved.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //     http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 package android
     16 
     17 import (
     18 	"github.com/google/blueprint"
     19 	_ "github.com/google/blueprint/bootstrap"
     20 )
     21 
     22 var (
     23 	pctx = NewPackageContext("android/soong/common")
     24 
     25 	cpPreserveSymlinks = pctx.VariableConfigMethod("cpPreserveSymlinks",
     26 		Config.CpPreserveSymlinksFlags)
     27 
     28 	// A phony rule that is not the built-in Ninja phony rule.  The built-in
     29 	// phony rule has special behavior that is sometimes not desired.  See the
     30 	// Ninja docs for more details.
     31 	Phony = pctx.AndroidStaticRule("Phony",
     32 		blueprint.RuleParams{
     33 			Command:     "# phony $out",
     34 			Description: "phony $out",
     35 		})
     36 
     37 	// GeneratedFile is a rule for indicating that a given file was generated
     38 	// while running soong.  This allows the file to be cleaned up if it ever
     39 	// stops being generated by soong.
     40 	GeneratedFile = pctx.AndroidStaticRule("GeneratedFile",
     41 		blueprint.RuleParams{
     42 			Command:     "# generated $out",
     43 			Description: "generated $out",
     44 			Generator:   true,
     45 		})
     46 
     47 	// A copy rule.
     48 	Cp = pctx.AndroidStaticRule("Cp",
     49 		blueprint.RuleParams{
     50 			Command:     "cp $cpPreserveSymlinks $cpFlags $in $out",
     51 			Description: "cp $out",
     52 		},
     53 		"cpFlags")
     54 
     55 	// A timestamp touch rule.
     56 	Touch = pctx.AndroidStaticRule("Touch",
     57 		blueprint.RuleParams{
     58 			Command:     "touch $out",
     59 			Description: "touch $out",
     60 		})
     61 
     62 	// A symlink rule.
     63 	Symlink = pctx.AndroidStaticRule("Symlink",
     64 		blueprint.RuleParams{
     65 			Command:     "ln -f -s $fromPath $out",
     66 			Description: "symlink $out",
     67 		},
     68 		"fromPath")
     69 
     70 	ErrorRule = pctx.AndroidStaticRule("Error",
     71 		blueprint.RuleParams{
     72 			Command:     `echo "$error" && false`,
     73 			Description: "error building $out",
     74 		},
     75 		"error")
     76 
     77 	Cat = pctx.AndroidStaticRule("Cat",
     78 		blueprint.RuleParams{
     79 			Command:     "cat $in > $out",
     80 			Description: "concatenate licenses $out",
     81 		})
     82 
     83 	// Used only when USE_GOMA=true is set, to restrict non-goma jobs to the local parallelism value
     84 	localPool = blueprint.NewBuiltinPool("local_pool")
     85 )
     86 
     87 func init() {
     88 	pctx.Import("github.com/google/blueprint/bootstrap")
     89 }
     90