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pkgfile.go
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pkgfile.go
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package gxutil
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"os"
log "github.com/whyrusleeping/stump"
)
type PackageBase struct {
Name string `json:"name,omitempty"`
Author string `json:"author,omitempty"`
Description string `json:"description,omitempty"`
Keywords []string `json:"keywords,omitempty"`
Version string `json:"version,omitempty"`
Dependencies []*Dependency `json:"gxDependencies,omitempty"`
Bin string `json:"bin,omitempty"`
Build string `json:"build,omitempty"`
Test string `json:"test,omitempty"`
ReleaseCmd string `json:"releaseCmd,omitempty"`
SubtoolRequired bool `json:"subtoolRequired,omitempty"`
Language string `json:"language,omitempty"`
License string `json:"license"`
Bugs BugsObj `json:"bugs"`
GxVersion string `json:"gxVersion"`
}
type BugsObj struct {
Url string `json:"url,omitempty"`
}
type Package struct {
PackageBase
Gx json.RawMessage `json:"gx,omitempty"`
}
// Dependency represents a dependency of a package
type Dependency struct {
Author string `json:"author,omitempty"`
Name string `json:"name,omitempty"`
Hash string `json:"hash"`
Version string `json:"version,omitempty"`
}
func LoadPackageFile(pkg interface{}, fname string) error {
data, err := ioutil.ReadFile(fname)
if err != nil {
return err
}
var pkgmap map[string]interface{}
if err := json.Unmarshal(data, &pkgmap); err != nil {
return err
}
if url, ok := pkgmap["bugs"].(string); ok {
pkgmap["bugs"] = map[string]interface{}{
"url": url,
}
changed, err := json.Marshal(pkgmap)
if err != nil {
return err
}
data = changed
}
return json.Unmarshal(data, pkg)
}
func SavePackageFile(pkg interface{}, fname string) error {
data, err := ioutil.ReadFile(fname)
if err != nil {
if os.IsNotExist(err) {
return writeJson(pkg, fname)
}
return err
}
var current map[string]interface{}
if err := json.Unmarshal(data, ¤t); err != nil {
return err
}
buf := new(bytes.Buffer)
enc := json.NewEncoder(buf)
enc.SetEscapeHTML(false)
if err := enc.Encode(pkg); err != nil {
return err
}
var modified map[string]interface{}
if err := json.NewDecoder(buf).Decode(&modified); err != nil {
return err
}
return writeJson(mergeMaps(current, modified), fname)
}
func writeJson(i interface{}, fname string) error {
fi, err := os.Create(fname)
if err != nil {
return err
}
defer fi.Close()
buf := new(bytes.Buffer)
enc := json.NewEncoder(buf)
enc.SetEscapeHTML(false)
if err := enc.Encode(i); err != nil {
return err
}
out := new(bytes.Buffer)
if json.Indent(out, buf.Bytes(), "", " ") != nil {
return err
}
_, err = fi.Write(out.Bytes())
fi.WriteString("\n")
return err
}
// FindDep returns a reference to the named dependency in this package file
func (pkg *PackageBase) FindDep(ref string) *Dependency {
for _, d := range pkg.Dependencies {
if d.Hash == ref || d.Name == ref {
return d
}
}
return nil
}
func (pkg *PackageBase) ForEachDep(cb func(dep *Dependency, pkg *Package) error) error {
log.VLog(" - foreachdep: %s", pkg.Name)
for _, dep := range pkg.Dependencies {
var cpkg Package
err := LoadPackage(&cpkg, pkg.Language, dep.Hash)
if err != nil {
if os.IsNotExist(err) {
log.VLog("LoadPackage error: ", err)
return fmt.Errorf("package %s (%s) not found", dep.Name, dep.Hash)
}
return err
}
err = cb(dep, &cpkg)
if err != nil {
return err
}
}
return nil
}