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package filesystem
import (
"os"
"gopkg.in/src-d/go-git.v4/config"
gitconfig "gopkg.in/src-d/go-git.v4/plumbing/format/config"
"gopkg.in/src-d/go-git.v4/storage/filesystem/internal/dotgit"
)
const (
remoteSection = "remote"
fetchKey = "fetch"
urlKey = "url"
)
type ConfigStorage struct {
dir *dotgit.DotGit
}
func (c *ConfigStorage) Config() (*config.Config, error) {
cfg := config.NewConfig()
ini, err := c.unmarshal()
if err != nil {
return nil, err
}
sect := ini.Section(remoteSection)
for _, s := range sect.Subsections {
r := c.unmarshalRemote(s)
cfg.Remotes[r.Name] = r
}
return cfg, nil
}
func (c *ConfigStorage) unmarshal() (*gitconfig.Config, error) {
cfg := gitconfig.New()
f, err := c.dir.Config()
if err != nil {
if os.IsNotExist(err) {
return cfg, nil
}
return nil, err
}
defer f.Close()
d := gitconfig.NewDecoder(f)
if err := d.Decode(cfg); err != nil {
return nil, err
}
return cfg, nil
}
func (c *ConfigStorage) unmarshalRemote(s *gitconfig.Subsection) *config.RemoteConfig {
fetch := []config.RefSpec{}
for _, f := range s.Options.GetAll(fetchKey) {
rs := config.RefSpec(f)
if rs.IsValid() {
fetch = append(fetch, rs)
}
}
return &config.RemoteConfig{
Name: s.Name,
URL: s.Option(urlKey),
Fetch: fetch,
}
}
func (c *ConfigStorage) SetConfig(cfg *config.Config) error {
if err := cfg.Validate(); err != nil {
return err
}
ini, err := c.unmarshal()
if err != nil {
return err
}
s := ini.Section(remoteSection)
s.Subsections = make(gitconfig.Subsections, len(cfg.Remotes))
var i int
for _, r := range cfg.Remotes {
s.Subsections[i] = c.marshalRemote(r)
i++
}
return c.marshal(ini)
}
func (c *ConfigStorage) marshal(ini *gitconfig.Config) error {
f, err := c.dir.ConfigWriter()
if err != nil {
return err
}
defer f.Close()
e := gitconfig.NewEncoder(f)
return e.Encode(ini)
}
func (c *ConfigStorage) marshalRemote(r *config.RemoteConfig) *gitconfig.Subsection {
s := &gitconfig.Subsection{Name: r.Name}
s.AddOption(urlKey, r.URL)
for _, rs := range r.Fetch {
s.AddOption(fetchKey, rs.String())
}
return s
}
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