// ToYaml returns a yaml.Map containing the data from Config.
func (c *Config) ToYaml() yaml.Node {
cfg := make(map[string]yaml.Node, 5)
cfg["package"] = yaml.Scalar(c.Name)
if len(c.InCommand) > 0 {
cfg["incmd"] = yaml.Scalar(c.InCommand)
}
if c.Flatten == true {
cfg["flatten"] = yaml.Scalar("true")
}
imps := make([]yaml.Node, len(c.Imports))
for i, imp := range c.Imports {
imps[i] = imp.ToYaml()
}
devimps := make([]yaml.Node, len(c.DevImports))
for i, dimp := range c.DevImports {
devimps[i] = dimp.ToYaml()
}
// Fixed in 0.5.0. Prior to that, these were not being printed. Worried
// that the "fix" might introduce an unintended side effect.
if len(imps) > 0 {
cfg["import"] = yaml.List(imps)
}
if len(devimps) > 0 {
cfg["devimport"] = yaml.List(devimps)
}
return yaml.Map(cfg)
}
// MergeToYaml converts a Config object and a yaml.File to a single yaml.File.
//
// Params:
// - conf (*Config): The configuration to merge.
// - overwriteImports (bool, default true): If this is true, old config will
// overwritten. If false, we attempt to merge the old and new config, with
// preference to the old.
//
// Returns:
// - The root yaml.Node of the modified config.
//
// Uses:
// - cxt.Get("yaml.File") as the source for the YAML file.
func MergeToYaml(c cookoo.Context, p *cookoo.Params) (interface{}, cookoo.Interrupt) {
root := c.Get("yaml.File", nil).(*yaml.File).Root
cfg := p.Get("conf", nil).(*Config)
overwrite := p.Get("overwriteImports", true).(bool)
rootMap, ok := root.(yaml.Map)
if !ok {
return nil, fmt.Errorf("Expected root node to be a map.")
}
if len(cfg.Name) > 0 {
rootMap["package"] = yaml.Scalar(cfg.Name)
}
if cfg.InCommand != "" {
rootMap["incmd"] = yaml.Scalar(cfg.InCommand)
}
if overwrite {
// Imports
imports := make([]yaml.Node, len(cfg.Imports))
for i, imp := range cfg.Imports {
imports[i] = imp.ToYaml()
}
rootMap["import"] = yaml.List(imports)
} else {
var err error
rootMap, err = mergeImports(rootMap, cfg)
if err != nil {
Warn("Problem merging imports: %s\n", err)
}
}
return root, nil
}
// ToYaml converts a *Dependency to a YAML Map node.
func (d *Dependency) ToYaml() yaml.Node {
dep := make(map[string]yaml.Node, 8)
dep["package"] = yaml.Scalar(d.Name)
if len(d.Subpackages) > 0 {
subp := make([]yaml.Node, len(d.Subpackages))
for i, item := range d.Subpackages {
subp[i] = yaml.Scalar(item)
}
dep["subpackages"] = yaml.List(subp)
}
vcs := d.VcsType
if len(vcs) > 0 {
dep["vcs"] = yaml.Scalar(vcs)
}
if len(d.Reference) > 0 {
dep["ref"] = yaml.Scalar(d.Reference)
}
if len(d.Repository) > 0 {
dep["repo"] = yaml.Scalar(d.Repository)
}
if len(d.Arch) > 0 {
archs := make([]yaml.Node, len(d.Arch))
for i, a := range d.Arch {
archs[i] = yaml.Scalar(a)
}
dep["arch"] = yaml.List(archs)
}
if len(d.Os) > 0 {
oses := make([]yaml.Node, len(d.Os))
for i, a := range d.Os {
oses[i] = yaml.Scalar(a)
}
dep["os"] = yaml.List(oses)
}
// Note, the yaml package we use sorts strings of scalars so flatten
// will always be the top item.
if d.Flatten == true {
dep["flatten"] = yaml.Scalar("true")
}
return yaml.Map(dep)
}
// WriteYaml writes a yaml.Node to the console as a string.
//
// Params:
// - yaml.Node (yaml.Node): A yaml.Node to render.
// - out (io.Writer): An output stream to write to. Default is os.Stdout.
// - filename (string): If set, the file will be opened and the content will be written to it.
func WriteYaml(c cookoo.Context, p *cookoo.Params) (interface{}, cookoo.Interrupt) {
top := p.Get("yaml.Node", yaml.Scalar("nothing to print")).(yaml.Node)
var out io.Writer
if nn, ok := p.Has("filename"); ok && len(nn.(string)) > 0 {
file, err := os.Create(nn.(string))
if err != nil {
}
defer file.Close()
out = io.Writer(file)
} else {
out = p.Get("out", os.Stdout).(io.Writer)
}
fmt.Fprint(out, yaml.Render(top))
return true, nil
}
// ToYaml converts a *Dependency to a YAML Map node.
func (d *Dependency) ToYaml() yaml.Node {
dep := make(map[string]yaml.Node, 5)
dep["package"] = yaml.Scalar(d.Name)
if len(d.Subpackages) > 0 {
subp := make([]yaml.Node, len(d.Subpackages))
for i, item := range d.Subpackages {
subp[i] = yaml.Scalar(item)
}
dep["subpackages"] = yaml.List(subp)
}
vcs := d.VcsType
if len(vcs) > 0 {
dep["vcs"] = yaml.Scalar(vcs)
}
if len(d.Reference) > 0 {
dep["ref"] = yaml.Scalar(d.Reference)
}
if len(d.Repository) > 0 {
dep["repo"] = yaml.Scalar(d.Repository)
}
if len(d.Arch) > 0 {
archs := make([]yaml.Node, len(d.Arch))
for i, a := range d.Arch {
archs[i] = yaml.Scalar(a)
}
dep["arch"] = yaml.List(archs)
}
if len(d.Os) > 0 {
oses := make([]yaml.Node, len(d.Os))
for i, a := range d.Os {
oses[i] = yaml.Scalar(a)
}
dep["os"] = yaml.List(oses)
}
return yaml.Map(dep)
}
package main
import "fmt"
import "github.com/kylelemons/go-gypsy/yaml"
var yamlDoc = yaml.Map{"Hello": yaml.Scalar("World")}
func main() {
fmt.Printf("%s\n", yaml.Render(yamlDoc))
}