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update-gotools/types.go

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package main
import (
"io/ioutil"
"net/http"
"os"
homedir "github.com/mitchellh/go-homedir"
yaml "gopkg.in/yaml.v2"
)
type pkgCfg struct {
Name string `yaml:"name"`
Single bool `yaml:"single"`
Ver string `yaml:"version"`
VersionURL string `yaml:"version_url"`
}
type configFile struct {
Cwd string `yaml:"cwd"`
GoPath string `yaml:"gopath"`
Packages []pkgCfg `yaml:"packages"`
PreCommands [][]string `yaml:"pre_commands"`
PostCommands [][]string `yaml:"post_commands"`
}
func (c *configFile) LoadFromPath(filepath string) error {
r, err := os.Open(filepath)
if err != nil {
return err
}
defer r.Close()
if err := yaml.NewDecoder(r).Decode(cfgFile); err != nil {
return err
}
if c.Cwd, err = homedir.Expand(c.Cwd); err != nil {
return err
}
if c.GoPath, err = homedir.Expand(c.GoPath); err != nil {
return err
}
return nil
}
func (p *pkgCfg) Version() (string, error) {
if p.Ver != "" {
return p.Ver, nil
}
if p.VersionURL != "" {
resp, err := http.Get(p.VersionURL)
if err != nil {
return "", err
}
defer resp.Body.Close()
v, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
p.Ver = string(v)
return p.Ver, nil
}
return "", nil
}