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dagger/plan/task/httpfetch.go

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package task
import (
"context"
"fmt"
"io/fs"
"net/url"
"github.com/moby/buildkit/client/llb"
"github.com/opencontainers/go-digest"
"github.com/rs/zerolog/log"
"go.dagger.io/dagger/compiler"
"go.dagger.io/dagger/plancontext"
"go.dagger.io/dagger/solver"
)
func init() {
Register("HTTPFetch", func() Task { return &httpFetchTask{} })
}
type httpFetchTask struct {
}
func (c httpFetchTask) Run(ctx context.Context, pctx *plancontext.Context, s solver.Solver, v *compiler.Value) (*compiler.Value, error) {
var httpFetch struct {
Source string
Checksum string
Dest string
Permissions int
UID int
GID int
}
if err := v.Decode(&httpFetch); err != nil {
return nil, err
}
linkRedacted := httpFetch.Source
if u, err := url.Parse(httpFetch.Source); err == nil {
linkRedacted = u.Redacted()
}
httpOpts := []llb.HTTPOption{}
lg := log.Ctx(ctx)
if httpFetch.Checksum != "" {
lg.Debug().Str("checksum", httpFetch.Checksum).Msg("adding http option")
dgst, err := digest.Parse(httpFetch.Checksum)
if err != nil {
return nil, err
}
httpOpts = append(httpOpts, llb.Checksum(dgst))
}
if httpFetch.Dest != "" {
lg.Debug().Str("dest", httpFetch.Dest).Msg("adding http option")
httpOpts = append(httpOpts, llb.Filename(httpFetch.Dest))
}
if httpFetch.Permissions != 0 {
lg.Debug().Str("permissions", fmt.Sprint(httpFetch.Permissions)).Msg("adding http option")
httpOpts = append(httpOpts, llb.Chmod(fs.FileMode(httpFetch.Permissions)))
}
if httpFetch.UID != 0 && httpFetch.GID != 0 {
lg.Debug().Str("uid", fmt.Sprint(httpFetch.UID)).Str("gid", fmt.Sprint(httpFetch.GID)).Msg("adding http option")
httpOpts = append(httpOpts, llb.Chown(httpFetch.UID, httpFetch.GID))
}
httpOpts = append(httpOpts, withCustomName(v, "FetchHTTP %s", linkRedacted))
st := llb.HTTP(httpFetch.Source, httpOpts...)
result, err := s.Solve(ctx, st, pctx.Platform.Get())
if err != nil {
return nil, err
}
fs := pctx.FS.New(result)
return compiler.NewValue().FillFields(map[string]interface{}{
"output": fs.MarshalCUE(),
})
}