show info from directories
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17e7153be7
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@ -1,8 +1,9 @@
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# syntax=docker/dockerfile:1.6.0
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# ------------------------------------------------------------------------
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from mcluseau/golang-builder:1.21.6 as build
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from mcluseau/golang-builder:1.23.2 as build
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# ------------------------------------------------------------------------
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from alpine:3.19
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from alpine:3.20
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volume /srv/dkl-store
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entrypoint ["/bin/dkl-store"]
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copy --from=build /go/bin/ /bin/
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@ -3,15 +3,20 @@ package main
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import (
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"crypto/sha1"
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"encoding/hex"
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"encoding/json"
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"os"
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"path"
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"path/filepath"
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"sort"
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"strings"
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"time"
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"github.com/coreos/go-semver/semver"
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)
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var (
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@ -31,18 +36,51 @@ func main() {
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}
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func handleHTTP(w http.ResponseWriter, req *http.Request) {
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filePath := filepath.Join(*storeDir, req.URL.Path)
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filePath := filepath.Join(*storeDir, path.Clean(req.URL.Path))
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l := fmt.Sprintf("%s %s", req.Method, filePath)
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log.Print(l)
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defer log.Print(l, " done")
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stat, err := os.Stat(filePath)
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if err != nil && !os.IsNotExist(err) {
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if err != nil {
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if !os.IsNotExist(err) {
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writeErr(err, w)
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} else {
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http.NotFound(w, req)
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}
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return
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}
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if stat.Mode().IsDir() {
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entries, err := os.ReadDir(filePath)
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if err != nil {
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writeErr(err, w)
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return
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} else if err == nil && stat.Mode().IsDir() {
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http.NotFound(w, req)
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}
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w.Header().Set("Content-Type", "application/json")
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resp := struct {
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Versions map[string]*VersionInfo `json:",omitempty"`
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Names []string
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}{
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Versions: make(map[string]*VersionInfo, len(entries)),
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Names: make([]string, 0, len(entries)),
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}
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for _, e := range entries {
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name := e.Name()
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if strings.HasSuffix(name, ".sha1") {
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continue
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}
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resp.Names = append(resp.Names, e.Name())
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}
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resp.Versions = aggregateVersions(resp.Names)
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sort.Strings(resp.Names)
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json.NewEncoder(w).Encode(resp)
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return
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}
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@ -106,7 +144,7 @@ func handleHTTP(w http.ResponseWriter, req *http.Request) {
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os.Rename(tmpOut, filePath)
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if err := ioutil.WriteFile(filePath+".sha1", []byte(sha1Hex), 0644); err != nil {
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if err := os.WriteFile(filePath+".sha1", []byte(sha1Hex), 0644); err != nil {
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writeErr(err, w)
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return
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}
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@ -144,7 +182,7 @@ func hashOf(filePath string) (sha1Hex string, err error) {
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if err == nil {
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if sha1Stat.ModTime().After(fileStat.ModTime()) {
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// cached value is up-to-date
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sha1HexBytes, readErr := ioutil.ReadFile(sha1Path)
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sha1HexBytes, readErr := os.ReadFile(sha1Path)
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if readErr == nil {
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sha1Hex = string(sha1HexBytes)
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@ -178,9 +216,97 @@ func hashOf(filePath string) (sha1Hex string, err error) {
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log.Print("hashing ", filePath, " took ", time.Since(start).Truncate(time.Millisecond))
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if writeErr := ioutil.WriteFile(sha1Path, []byte(sha1Hex), 0644); writeErr != nil {
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if writeErr := os.WriteFile(sha1Path, []byte(sha1Hex), 0644); writeErr != nil {
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log.Printf("WARNING: failed to cache SHA1: %v", writeErr)
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}
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return
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}
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func aggregateVersions(names []string) map[string]*VersionInfo {
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versions := make([]VersionName, 0, len(names))
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for _, name := range names {
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rem := name
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segments := make([]semver.Version, 0, 5)
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for len(rem) != 0 {
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var s string
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s, rem, _ = strings.Cut(rem, "_")
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// remove non-number prefix chars
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s = strings.TrimFunc(s, func(c rune) bool {
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return !('0' <= c && c <= '9')
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})
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ver, err := semver.NewVersion(s)
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if err != nil {
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continue
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}
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segments = append(segments, *ver)
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}
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if len(segments) == 0 {
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continue
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}
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versions = append(versions, VersionName{segments, name})
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}
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sort.Slice(versions, func(i, j int) bool {
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return versions[i].LessThan(versions[j])
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})
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ret := make(map[string]*VersionInfo, len(versions))
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for _, vi := range versions {
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v := vi.segments[0]
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name := vi.name
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for _, key := range []string{
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fmt.Sprintf("%d", v.Major),
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fmt.Sprintf("%d.%d", v.Major, v.Minor),
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} {
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agg, ok := ret[key]
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if !ok {
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agg = &VersionInfo{}
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ret[key] = agg
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}
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agg.Latest = name
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agg.All = append(agg.All, name)
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}
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}
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return ret
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}
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type VersionInfo struct {
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Latest string
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All []string
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}
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type VersionName struct {
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segments []semver.Version
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name string
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}
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func (a VersionName) LessThan(b VersionName) bool {
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n := len(a.segments)
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if l := len(b.segments); l > n {
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n = l
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}
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for i := 0; i != n; i++ {
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if i >= len(a.segments) {
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return true
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}
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if i >= len(b.segments) {
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return false
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}
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va, vb := a.segments[i], b.segments[i]
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if !va.Equal(vb) {
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return va.LessThan(vb)
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}
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}
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return a.name < b.name
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}
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88
cmd/dkl-store/versions_test.go
Normal file
88
cmd/dkl-store/versions_test.go
Normal file
@ -0,0 +1,88 @@
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package main
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import (
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"encoding/json"
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"math/rand"
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"os"
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)
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func ExampleAggregateVersions() {
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names := []string{
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"dlkjsgljk",
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"v1.20.16",
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"v1.19.8_containerd.1.4.4",
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"v1.20.15_containerd.1.4.13",
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"v1.20.1_containerd.1.4.3",
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"lkjzsfgj",
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"v1.20.9_containerd.1.4.8",
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"v1.21.0_containerd.1.4.4",
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"v1.21.10_containerd.1.4.12",
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"v1.21.10_containerd.1.4.13",
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"v1.21.10_containerd.1.5.10",
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"v1.21.10_containerd.1.5.9",
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"v1.21.11_containerd.1.4.13",
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"v1.21.14_containerd.1.5.16",
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"v1.21.9_containerd.1.5.9",
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}
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rand.Shuffle(len(names), func(i, j int) {
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names[i], names[j] = names[j], names[i]
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})
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agg := aggregateVersions(names)
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enc := json.NewEncoder(os.Stdout)
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enc.SetIndent("", " ")
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enc.Encode(agg)
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// Output:
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// {
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// "1": {
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// "Latest": "v1.21.14_containerd.1.5.16",
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// "All": [
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// "v1.19.8_containerd.1.4.4",
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// "v1.20.1_containerd.1.4.3",
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// "v1.20.9_containerd.1.4.8",
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// "v1.20.15_containerd.1.4.13",
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// "v1.20.16",
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// "v1.21.0_containerd.1.4.4",
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// "v1.21.9_containerd.1.5.9",
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// "v1.21.10_containerd.1.4.12",
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// "v1.21.10_containerd.1.4.13",
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// "v1.21.10_containerd.1.5.9",
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// "v1.21.10_containerd.1.5.10",
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// "v1.21.11_containerd.1.4.13",
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// "v1.21.14_containerd.1.5.16"
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// ]
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// },
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// "1.19": {
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// "Latest": "v1.19.8_containerd.1.4.4",
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// "All": [
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// "v1.19.8_containerd.1.4.4"
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// ]
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// },
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// "1.20": {
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// "Latest": "v1.20.16",
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// "All": [
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// "v1.20.1_containerd.1.4.3",
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// "v1.20.9_containerd.1.4.8",
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// "v1.20.15_containerd.1.4.13",
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// "v1.20.16"
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// ]
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// },
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// "1.21": {
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// "Latest": "v1.21.14_containerd.1.5.16",
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// "All": [
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// "v1.21.0_containerd.1.4.4",
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// "v1.21.9_containerd.1.5.9",
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// "v1.21.10_containerd.1.4.12",
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// "v1.21.10_containerd.1.4.13",
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// "v1.21.10_containerd.1.5.9",
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// "v1.21.10_containerd.1.5.10",
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// "v1.21.11_containerd.1.4.13",
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// "v1.21.14_containerd.1.5.16"
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// ]
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// }
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// }
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}
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4
go.mod
4
go.mod
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module novit.nc/direktil/store
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go 1.13
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go 1.23
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require github.com/coreos/go-semver v0.3.1
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6
go.sum
6
go.sum
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github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=
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github.com/coreos/go-semver v0.3.1/go.mod h1:irMmmIw/7yzSRPWryHsK7EYSg09caPQL03VsM8rvUec=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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