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forked from cppforlife/bosh-provisioner
/
release.go
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/
release.go
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package release
import (
bprelman "github.com/cppforlife/bosh-provisioner/release/manifest"
)
type Release struct {
Manifest bprelman.Manifest `json:"-"`
Name string
Version string
CommitHash string
UncommittedChanges bool
Jobs []Job
Packages []*Package
CompiledPackages []*Package
}
type Job struct {
Name string
Version string
Fingerprint string
SHA1 string
TarPath string
}
type Package struct {
Name string
Version string
Fingerprint string
SHA1 string
TarPath string
// Package dependencies used at compilation of this package
Dependencies []*Package
}
// ResolvedPackageDependencies returns list of packages
// in order such that each package at a higher index
// only depends on packages at lower indecies.
func (r Release) ResolvedPackageDependencies() []*Package {
var resolvedPkgs []*Package
var pendingPkgs []*Package
for _, pkg := range r.Packages {
pkgRef := pkg
pendingPkgs = append(pendingPkgs, pkgRef)
}
iterations := 0
for len(pendingPkgs) > 0 {
pkg := pendingPkgs[0]
depsSatisfied := true
for _, depPkg := range pkg.Dependencies {
depSatisfied := false
for _, resPkg := range resolvedPkgs {
if depPkg.Name == resPkg.Name {
depSatisfied = true
break
}
}
if !depSatisfied {
depsSatisfied = false
break
}
}
pendingPkgs = pendingPkgs[1:]
if depsSatisfied {
resolvedPkgs = append(resolvedPkgs, pkg)
} else {
pendingPkgs = append(pendingPkgs, pkg)
}
if iterations > 100 {
panic("Failed to resolve package dependenices witin 100 iterations")
} else {
iterations++
}
}
return resolvedPkgs
}
// populateFromManifest populates release information
// interpreted from release manifest.
func (r *Release) populateFromManifest(manifest bprelman.Manifest) {
r.populateRelease(manifest.Release)
r.populatePackages(manifest.Release.Packages)
r.populateCompiledPackages(manifest.Release.CompiledPackages)
r.populateJobs(manifest.Release.Jobs)
r.Manifest = manifest
}
func (r *Release) populateRelease(manRelease bprelman.Release) {
r.Name = manRelease.Name
r.Version = manRelease.Version
r.CommitHash = manRelease.CommitHash
r.UncommittedChanges = manRelease.UncommittedChanges
}
func (r *Release) populateCompiledPackages(manCompiledPkgs []bprelman.Package) {
for _, manPkg := range manCompiledPkgs {
pkg := Package{
Name: manPkg.Name,
Version: manPkg.Version,
Fingerprint: manPkg.Fingerprint,
SHA1: manPkg.SHA1,
}
r.CompiledPackages = append(r.CompiledPackages, &pkg)
}
}
func (r *Release) populatePackages(manPkgs []bprelman.Package) {
nameToPkg := map[bprelman.DependencyName]*Package{}
for _, manPkg := range manPkgs {
pkg := Package{
Name: manPkg.Name,
Version: manPkg.Version,
Fingerprint: manPkg.Fingerprint,
SHA1: manPkg.SHA1,
}
r.Packages = append(r.Packages, &pkg)
nameToPkg[bprelman.DependencyName(pkg.Name)] = &pkg
}
// Connect compile time dependencies for packages
for i, manPkg := range manPkgs {
for _, depName := range manPkg.DependencyNames {
r.Packages[i].Dependencies = append(r.Packages[i].Dependencies, nameToPkg[depName])
}
}
}
func (r *Release) populateJobs(manJobs []bprelman.Job) {
for _, manJob := range manJobs {
job := Job{
Name: manJob.Name,
Version: manJob.Version,
Fingerprint: manJob.Fingerprint,
SHA1: manJob.SHA1,
}
r.Jobs = append(r.Jobs, job)
}
}