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images.go
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images.go
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/*
Copyright 2019 The Rigging Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package installer
import (
"fmt"
"github.com/n3wscott/rigging/pkg/images"
"strings"
"sync"
)
var packages = []string(nil)
var packageToImageConfig = map[string]string{}
var packaged sync.Once
// RegisterPackage registers an interest in producing an image based on the
// provide package.
func RegisterPackage(pack ...string) {
for _, p := range pack {
exists := false
for _, k := range packages {
if p == k {
exists = true
break
}
}
if !exists {
packages = append(packages, p)
}
}
}
// ProduceImages returns back the packages that have been added.
// Will produce images once, can be called many times.
func ProduceImages() (map[string]string, error) {
var propErr error
packaged.Do(func() {
for _, pack := range packages {
image, err := images.KoPublish(pack)
if err != nil {
fmt.Printf("error attempting to ko publish: %s\n", err)
propErr = err
return
}
i := strings.Split(pack, "/")
packageToImageConfig[i[len(i)-1]] = strings.TrimSpace(image)
}
})
return packageToImageConfig, propErr
}