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Try to build only when strictly necessary

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This commit is contained in:
Ettore Di Giacinto
2020-12-06 23:50:51 +01:00
parent 02edc10c58
commit 5047316b70
1 changed files with 37 additions and 7 deletions
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32
pkg/compiler/compiler.go
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@@ -345,6 +345,18 @@ func (cs *LuetCompiler) buildPackageImage(image, buildertaggedImage, packageImag
return builderOpts, runnerOpts, errors.Wrap(err, "Could not generate image definition")
}
if len(p.GetPreBuildSteps()) == 0 {
buildertaggedImage = image
}
if len(p.BuildSteps()) == 0 {
packageImage = buildertaggedImage
}
if len(p.BuildSteps()) == 0 && len(p.GetPreBuildSteps()) == 0 {
packageImage = image
}
// Then we write the step image, which uses the builder one
if err := p.WriteStepImageDefinition(buildertaggedImage, filepath.Join(buildDir, p.GetPackage().GetFingerPrint()+".dockerfile")); err != nil {
return builderOpts, runnerOpts, errors.Wrap(err, "Could not generate image definition")
@@ -392,15 +404,19 @@ func (cs *LuetCompiler) buildPackageImage(image, buildertaggedImage, packageImag
}
return nil
}
if len(p.GetPreBuildSteps()) != 0 {
Info(pkgTag, ":whale: Generating 'builder' image from", image, "as", buildertaggedImage, "with prelude steps")
if err := buildAndPush(builderOpts); err != nil {
return builderOpts, runnerOpts, errors.Wrap(err, "Could not push image: "+image+" "+builderOpts.DockerFileName)
}
}
if len(p.BuildSteps()) != 0 {
Info(pkgTag, ":whale: Generating 'package' image from", buildertaggedImage, "as", packageImage, "with build steps")
if err := buildAndPush(runnerOpts); err != nil {
return builderOpts, runnerOpts, errors.Wrap(err, "Could not push image: "+image+" "+builderOpts.DockerFileName)
}
}
return builderOpts, runnerOpts, nil
}
@@ -420,6 +436,20 @@ func (cs *LuetCompiler) genArtifact(p CompilationSpec, builderOpts, runnerOpts C
unpack = true
}
if len(p.BuildSteps()) == 0 && len(p.GetPreBuildSteps()) == 0 && !unpack {
fakePackage := p.Rel(p.GetPackage().GetFingerPrint() + ".package.tar")
// We can't generate delta in this case. It implies the package is a virtual, and nothing as to be done really
file, err := os.Create(fakePackage)
if err != nil {
return nil, errors.Wrap(err, "Failed creating virtual package")
}
file.Close()
artifact := NewPackageArtifact(fakePackage)
artifact.SetCompressionType(cs.CompressionType)
return artifact, nil
}
// prepare folder content of the image with the package compiled inside
if err := cs.Backend.ExportImage(runnerOpts); err != nil {
return nil, errors.Wrap(err, "Failed exporting image")