drone-docker/card.go

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2.1 KiB
Go
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package docker
import (
"encoding/base64"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"path"
"strings"
"time"
"github.com/drone/drone-go/drone"
"github.com/inhies/go-bytesize"
)
func (p Plugin) writeCard() error {
cmd := exec.Command("docker", "inspect", p.Build.Name)
data, err := cmd.CombinedOutput()
if err != nil {
return err
}
out := Card{}
if err := json.Unmarshal(data, &out); err != nil {
return err
}
inspect := out[0]
inspect.SizeString = fmt.Sprint(bytesize.New(float64(inspect.Size)))
inspect.VirtualSizeString = fmt.Sprint(bytesize.New(float64(inspect.VirtualSize)))
inspect.Time = fmt.Sprint(inspect.Metadata.LastTagTime.Format(time.RFC3339))
// change slice of tags to slice of TagStruct
var sliceTagStruct []TagStruct
for _, tag := range inspect.RepoTags {
sliceTagStruct = append(sliceTagStruct, TagStruct{Tag: tag})
}
inspect.ParsedRepoTags = sliceTagStruct[1:] // remove the first tag which is always "hash:latest"
// create the url from repo and registry
inspect.URL = mapRegistryToURL(p.Daemon.Registry, p.Build.Repo)
cardData, _ := json.Marshal(inspect)
card := drone.CardInput{
Schema: "https://drone-plugins.github.io/drone-docker/card.json",
Data: cardData,
}
writeCard(p.CardPath, &card)
return nil
}
func writeCard(path string, card interface{}) {
data, _ := json.Marshal(card)
switch {
case path == "/dev/stdout":
writeCardTo(os.Stdout, data)
case path == "/dev/stderr":
writeCardTo(os.Stderr, data)
case path != "":
ioutil.WriteFile(path, data, 0644)
}
}
func writeCardTo(out io.Writer, data []byte) {
encoded := base64.StdEncoding.EncodeToString(data)
io.WriteString(out, "\u001B]1338;")
io.WriteString(out, encoded)
io.WriteString(out, "\u001B]0m")
io.WriteString(out, "\n")
}
func mapRegistryToURL(registry, repo string) (url string) {
url = "https://"
var domain string
if strings.Contains(registry, "amazonaws.com") {
domain = "gallery.ecr.aws/"
} else if strings.Contains(registry, "gcr.io") {
domain = "console.cloud.google.com/gcr/images"
} else {
// default to docker hub
domain = "hub.docker.com/r/"
}
url = path.Join(url, domain, repo)
return url
}