// GetSingleDeploySpec returns a single sous.DeploySpec from the working
// directory of wd. It assumes that this directory contains at least a file
// called singularity.json, and optionally an additional file called
// singularity-requst.json.
func (dsp *DeploySpecParser) GetSingleDeploySpec(wd shell.Shell) *sous.DeploySpec {
v := SingularityJSON{}
if !wd.Exists("singularity.json") {
dsp.debugf("no singularity.json in %s", wd.Dir())
return nil
}
if err := wd.JSON(&v, "cat", "singularity.json"); err != nil {
dsp.debugf("error reading %s: %s", path.Join(wd.Dir(),
"singularity.json"), err)
return nil
}
deploySpec := sous.DeploySpec{
DeployConfig: sous.DeployConfig{
Resources: v.Resources.SousResources(),
Env: v.Env,
},
}
request := SingularityRequestJSON{}
if !wd.Exists("singularity-request.json") {
dsp.debugf("no singularity-request.json in %s", wd.Dir())
return &deploySpec
}
dsp.debugf("%s/singularity-request.json exists, parsing it", wd.Dir())
if err := wd.JSON(&request, "cat", "singularity-request.json"); err != nil {
dsp.debugf("error reading singularity-request.json: %s", err)
return &deploySpec
}
deploySpec.NumInstances = request.Instances
return &deploySpec
}
// NewBuilder creates a new build using source code in the working
// directory of sourceShell, and using the working dir of scratchShell as
// temporary storage.
func NewBuilder(nc sous.Inserter, drh string, sourceShell, scratchShell shell.Shell) (*Builder, error) {
b := &Builder{
ImageMapper: nc,
DockerRegistryHost: drh,
SourceShell: sourceShell,
ScratchShell: scratchShell,
}
files, err := scratchShell.List()
if err != nil {
return nil, err
}
if len(files) != 0 {
return nil, fmt.Errorf("scratch dir %s was not empty", scratchShell.Dir())
}
return b, nil
}
// GetDeploySpecs searches the working directory of wd to find otpl-deploy
// config files in their standard locations (config/{cluster-name}), and
// converts them to sous.DeploySpecs.
func (dsp *DeploySpecParser) GetDeploySpecs(wd shell.Shell) sous.DeploySpecs {
wd = wd.Clone()
if err := wd.CD("config"); err != nil {
return nil
}
l, err := wd.List()
if err != nil {
dsp.debug(err)
return nil
}
c := make(chan namedDeploySpec)
wg := sync.WaitGroup{}
wg.Add(len(l))
go func() { wg.Wait(); close(c) }()
for _, f := range l {
f := f
go func() {
defer wg.Done()
if !f.IsDir() {
return
}
wd := wd.Clone()
if err := wd.CD(f.Name()); err != nil {
dsp.debug(err)
return
}
if otplConfig := dsp.GetSingleDeploySpec(wd); otplConfig != nil {
name := path.Base(wd.Dir())
c <- namedDeploySpec{name, otplConfig}
}
}()
}
deployConfigs := sous.DeploySpecs{}
for s := range c {
deployConfigs[s.Name] = *s.Spec
}
return deployConfigs
}