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version.go
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version.go
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package main
import (
"context"
"crypto/sha1" //nolint:gosec
"encoding/hex"
"fmt"
"regexp"
"github.com/dagger/dagger/ci/internal/dagger"
"golang.org/x/mod/semver"
)
type VersionInfo struct {
Tag string
Commit string
Dev string
}
var commitRegexp = regexp.MustCompile("^[0-9a-f]{40}$")
func newVersion(ctx context.Context, dir *dagger.Directory, version string) (*VersionInfo, error) {
switch {
case version == "":
id, err := dir.ID(ctx)
if err != nil {
return nil, err
}
h := sha1.New() //nolint:gosec
h.Write([]byte(id))
dgst := hex.EncodeToString(h.Sum(nil))
return &VersionInfo{Dev: dgst}, nil
case semver.IsValid(version):
return &VersionInfo{Tag: version}, nil
case commitRegexp.MatchString(version):
return &VersionInfo{Commit: version}, nil
default:
return nil, fmt.Errorf("could not parse version info %q", version)
}
}
func (info *VersionInfo) String() string {
if info.Tag != "" {
return info.Tag
}
if info.Commit != "" {
return info.Commit
}
if info.Dev != "" {
return "dev-" + info.Dev
}
return "dev-unknown"
}