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repo.go
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repo.go
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package commands
import (
"bytes"
"fmt"
"io"
cmds "github.com/ipfs/go-ipfs/commands"
corerepo "github.com/ipfs/go-ipfs/core/corerepo"
u "github.com/ipfs/go-ipfs/util"
)
var RepoCmd = &cmds.Command{
Helptext: cmds.HelpText{
Tagline: "Manipulate the IPFS repo",
ShortDescription: `
'ipfs repo' is a plumbing command used to manipulate the repo.
`,
},
Subcommands: map[string]*cmds.Command{
"gc": repoGcCmd,
},
}
var repoGcCmd = &cmds.Command{
Helptext: cmds.HelpText{
Tagline: "Perform a garbage collection sweep on the repo",
ShortDescription: `
'ipfs repo gc' is a plumbing command that will sweep the local
set of stored objects and remove ones that are not pinned in
order to reclaim hard disk space.
`,
},
Options: []cmds.Option{
cmds.BoolOption("quiet", "q", "Write minimal output"),
},
Run: func(req cmds.Request, res cmds.Response) {
n, err := req.InvocContext().GetNode()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
gcOutChan, err := corerepo.GarbageCollectAsync(n, req.Context())
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
outChan := make(chan interface{})
res.SetOutput((<-chan interface{})(outChan))
go func() {
defer close(outChan)
for k := range gcOutChan {
outChan <- k
}
}()
},
Type: corerepo.KeyRemoved{},
Marshalers: cmds.MarshalerMap{
cmds.Text: func(res cmds.Response) (io.Reader, error) {
outChan, ok := res.Output().(<-chan interface{})
if !ok {
return nil, u.ErrCast()
}
quiet, _, err := res.Request().Option("quiet").Bool()
if err != nil {
return nil, err
}
marshal := func(v interface{}) (io.Reader, error) {
obj, ok := v.(*corerepo.KeyRemoved)
if !ok {
return nil, u.ErrCast()
}
buf := new(bytes.Buffer)
if quiet {
buf = bytes.NewBufferString(string(obj.Key) + "\n")
} else {
buf = bytes.NewBufferString(fmt.Sprintf("removed %s\n", obj.Key))
}
return buf, nil
}
return &cmds.ChannelMarshaler{
Channel: outChan,
Marshaler: marshal,
Res: res,
}, nil
},
},
}