func (p *Pack) bestSupportedNodeVersion() string {
np := p.PackageJSON
var nodeVersion *version.V
nodeVersion = version.Range(np.Engines.Node).BestMatchFrom(p.AvailableNodeVersions())
if nodeVersion == nil {
cli.Fatalf("unable to satisfy NodeJS version '%s' (from package.json); available versions are: %s",
np.Engines.Node, strings.Join(p.AvailableNodeVersions().Strings(), ", "))
}
return nodeVersion.String()
}
func (p *Pack) baseDockerfile(target string) *docker.Dockerfile {
np := p.PackageJSON
nodeVersion := p.bestSupportedNodeVersion()
from := p.dockerFrom(nodeVersion, target) + ":latest"
npmVer := defaultNPMVersion
if np.Engines.NPM != "" {
npmVer = version.Range(np.Engines.NPM).BestMatchFrom(npmVersions)
if npmVer == nil {
cli.Logf("NPM version %s not supported, try using a range instead.", np.Engines.NPM)
cli.Fatalf("Available NPM version ranges are: '^3' and '^2'")
}
}
df := &docker.Dockerfile{
From: from,
Add: []docker.Add{docker.Add{Files: []string{"."}, Dest: wd}},
Workdir: wd,
LabelPrefix: "com.opentable",
}
df.AddLabel("build.pack.nodejs.version", nodeVersion)
return df
}
func (p *Pack) Problems() core.ErrorCollection {
if p.PackageJSON == nil {
panic("PackageJSON not set, detect must have failed.")
}
np := p.PackageJSON
errs := core.ErrorCollection{}
c := config.Load()
if np.Engines.Node == "" {
errs.AddWarningf("missing node engine version in package.json, defaulting to node %s; see https://docs.npmjs.com/files/package.json#engines",
c.Packs.NodeJS.DefaultNodeVersion)
} else {
r := version.Range(np.Engines.Node)
if v := r.BestMatchFrom(p.AvailableNodeVersions()); v == nil {
f := "node version range (%s) not supported (pick from %s)"
errs.AddErrorf(f, r.Original, strings.Join((p.AvailableNodeVersions().Strings()), ", "))
}
}
if np.Version == "" {
errs.AddWarningf("no app version specified in package.json:version")
}
return errs
}
func RequireGit() {
git.RequireVersion(version.Range(">=1.9.1"))
git.RequireRepo()
}
func RequireDocker() {
docker.RequireVersion(version.Range(">=1.8.2"))
docker.RequireDaemon()
}