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package importer
import (
"bytes"
"fmt"
"io"
"net/url"
"os"
"path"
"searchix/internal/config"
"searchix/internal/nix"
"github.com/andybalholm/brotli"
"github.com/bcicen/jstream"
"github.com/pkg/errors"
)
func ValueTypeToString(valueType jstream.ValueType) string {
switch valueType {
case jstream.Unknown:
return "unknown"
case jstream.Null:
return "null"
case jstream.String:
return "string"
case jstream.Number:
return "number"
case jstream.Boolean:
return "boolean"
case jstream.Array:
return "array"
case jstream.Object:
return "object"
}
return "very strange"
}
func makeGitHubFileURL(userRepo string, ref string, subPath string, line string) string {
if ref == "" {
ref = "master"
}
url, _ := url.JoinPath("https://github.com/", userRepo, "blob", ref, subPath)
if line != "" {
url = url + "#L" + line
}
return url
}
// make configurable?
var channelRepoMap = map[string]string{
"nixpkgs": "NixOS/nixpkgs",
"nix-darwin": "LnL7/nix-darwin",
"home-manager": "nix-community/home-manager",
}
func MakeChannelLink(channel string, ref string, subPath string) (*nix.Link, error) {
if channelRepoMap[channel] == "" {
return nil, fmt.Errorf("don't know what repository relates to channel <%s>", channel)
}
return &nix.Link{
Name: fmt.Sprintf("<%s/%s>", channel, subPath),
URL: makeGitHubFileURL(channelRepoMap[channel], ref, subPath, ""),
}, nil
}
func setRepoRevision(filename string, source *config.Source) error {
if filename != "" {
bits, err := os.ReadFile(filename)
if err != nil {
return errors.WithMessagef(
err,
"unable to read revision file at %s",
filename,
)
}
source.Repo.Revision = string(bytes.TrimSpace(bits))
}
return nil
}
type brotliReadCloser struct {
src io.ReadCloser
*brotli.Reader
}
func newBrotliReader(src io.ReadCloser) *brotliReadCloser {
return &brotliReadCloser{
src: src,
Reader: brotli.NewReader(src),
}
}
func (r *brotliReadCloser) Close() error {
return errors.Wrap(r.src.Close(), "failed to call close on underlying reader")
}
func openFileDecoded(filename string) (io.ReadCloser, error) {
var reader io.ReadCloser
var err error
ext := path.Ext(filename)
reader, err = os.Open(filename)
if err != nil {
return nil, errors.WithMessagef(err, "failed to open file %s", filename)
}
switch ext {
case ".json":
// nothing to do
case ".br":
reader = newBrotliReader(reader)
default:
reader.Close()
return nil, errors.Errorf("invalid file extension %s", ext)
}
return reader, nil
}
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