/
buildtemplate.go
46 lines (41 loc) · 1.06 KB
/
buildtemplate.go
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package main
import (
"fmt"
"path"
"strings"
"github.com/linuxkit/linuxkit/src/cmd/linuxkit/pkglib"
"github.com/linuxkit/linuxkit/src/cmd/linuxkit/spec"
)
const (
templateFlag = "@"
templatePkg = "pkg:"
)
func createPackageResolver(baseDir string) spec.PackageResolver {
return func(pkgTmpl string) (tag string, err error) {
var pkgValue string
switch {
case len(pkgTmpl) == 0, pkgTmpl[0:1] != templateFlag:
pkgValue = pkgTmpl
case strings.HasPrefix(pkgTmpl, templateFlag+templatePkg):
pkgPath := strings.TrimPrefix(pkgTmpl, templateFlag+templatePkg)
var pkgs []pkglib.Pkg
pkgConfig := pkglib.PkglibConfig{
BuildYML: defaultPkgBuildYML,
HashCommit: defaultPkgCommit,
Tag: defaultPkgTag,
}
pkgs, err = pkglib.NewFromConfig(pkgConfig, path.Join(baseDir, pkgPath))
if err != nil {
return tag, err
}
if len(pkgs) == 0 {
return tag, fmt.Errorf("no packages found")
}
if len(pkgs) > 1 {
return tag, fmt.Errorf("multiple packages found")
}
pkgValue = pkgs[0].FullTag()
}
return pkgValue, nil
}
}