[WIP] Release Script helpers

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
 	github.com/MakeNowJust/heredoc v1.0.0 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
-	github.com/Masterminds/semver/v3 v3.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.2.0 // indirect
 	github.com/Microsoft/go-winio v0.5.2 // indirect
 	github.com/PaesslerAG/gval v1.2.0 // indirect
 	github.com/PaesslerAG/jsonpath v0.1.1 // indirect

go.sum

@@ -98,6 +98,8 @@ github.com/Masterminds/semver v1.5.0 h1:H65muMkzWKEuNDnfl9d70GUjFniHKHRbFPGBuZ3Q
 github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
 github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
+github.com/Masterminds/semver/v3 v3.2.0 h1:3MEsd0SM6jqZojhjLWWeBY+Kcjy9i6MQAeY7YgDP83g=
+github.com/Masterminds/semver/v3 v3.2.0/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
 github.com/Masterminds/sprig v2.22.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/Masterminds/sprig/v3 v3.2.2/go.mod h1:UoaO7Yp8KlPnJIYWTFkMaqPUYKTfGFPhxNuwnnxkKlk=
 github.com/Masterminds/squirrel v1.5.2/go.mod h1:NNaOrjSoIDfDA40n7sr2tPNZRfjzjA400rg+riTZj10=

scripts/release/changelog.go

@@ -0,0 +1,150 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net"
+	"net/http"
+	"os"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/Masterminds/semver/v3"
+	"gopkg.in/yaml.v3"
+)
+
+func main() {
+
+	if len(os.Args) < 2 {
+		fmt.Fprintln(os.Stderr, "argument required: version to add changelog entries under")
+		os.Exit(1)
+	}
+
+	lastV := lastPublishedRelease()
+	response := commitList(lastV)
+
+	// if commit message ends like  (#444)  then it is probably a PR reference
+	prPattern := regexp.MustCompile(`\s*\(\#(\d+)\)$`)
+
+	for _, c := range response.Commits {
+		firstLine := strings.Split(strings.ReplaceAll(c.Commit.Message, "\r\n", "\n"), "\n")[0]
+		matches := prPattern.FindStringSubmatch(firstLine)
+		if matches == nil {
+			// no PR to reference!
+			fmt.Printf("Commit %s did not contain a PR number in its commit message in the expected place. Please add it manually. The commit message was:\n%s\n", c.SHA, c.Commit.Message)
+			continue
+		}
+		prNo, _ := strconv.Atoi(matches[1])
+
+		message := strings.TrimSuffix(firstLine, matches[0]) // trim PR number from changelog entry line
+
+		cmd := exec.Command(
+			"../../scripts/go-tools/bin/elastic-package",
+			"changelog", "add",
+			"--description", message,
+			"--link", fmt.Sprintf("https://github.com/elastic/endpoint-package/pull/%d", prNo),
+			"--type", "enhancement",
+			"--version", os.Args[1])
+		cmd.Dir = "./package/endpoint"
+		_, err := cmd.CombinedOutput()
+		if err != nil {
+			panic(err)
+		}
+
+		//fmt.Printf("elastic-package changelog add --description \"%s\" --link https://github.com/elastic/endpoint-package/pull/%d --type enhancement --version \n", message, prNo)
+
+	}
+
+	fmt.Println("entries added, please review the changes in the changelog file and edit as needed.")
+
+}
+
+func makeClient(t time.Duration) *http.Client {
+	return &http.Client{
+		Timeout: t,
+		Transport: &http.Transport{
+			Dial: (&net.Dialer{
+				Timeout: t,
+			}).Dial,
+		},
+	}
+}
+
+// get last changelog version (without prerelease suffixes like -next)
+func lastPublishedRelease() string {
+	f, err := os.OpenFile("package/endpoint/changelog.yml", os.O_RDONLY, 0644)
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+
+	entries := make([]map[string]interface{}, 0, 50)
+	if err := yaml.NewDecoder(f).Decode(&entries); err != nil {
+		panic(err)
+	}
+
+	if len(entries) == 0 {
+		fmt.Fprintln(os.Stderr, "previous changelog version not found")
+		os.Exit(1)
+	}
+
+	for _, e := range entries {
+		if v, ok := e["version"].(string); ok {
+			semv, err := semver.NewVersion(v)
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Unable to parse changelog version '%s': %v\n", v, err)
+				continue
+			}
+			if semv.Prerelease() != "" {
+				//fmt.Fprintf(os.Stderr, "%s is a Prerelease version. Skipping\n", v)
+				continue
+			}
+			return v
+		}
+
+	}
+
+	fmt.Fprintln(os.Stderr, "previous changelog version not found")
+	os.Exit(1)
+	return ""
+}
+
+type ghCompareResponse struct {
+	Commits []struct {
+		SHA    string `json:"sha"`
+		Commit struct {
+			Message string `json:"message"`
+		} `json:"commit"`
+		HTMLurl string `json:"html_url"`
+	} `json:"commits"`
+}
+
+func commitList(since string) ghCompareResponse {
+	client := makeClient(30 * time.Second)
+
+	req, err := http.NewRequest(http.MethodGet, fmt.Sprintf("https://api.github.com/repos/elastic/endpoint-package/compare/v%s...main", since), nil)
+	if err != nil {
+		panic(err)
+	}
+
+	req.Header.Set("Accept", "application/vnd.github+json")
+	req.Header.Set("X-Github-Api-Version", "2022-11-28")
+	resp, err := client.Do(req)
+
+	if err != nil {
+		panic(err)
+	}
+	if resp.StatusCode != http.StatusOK {
+		panic(fmt.Errorf("%d status code when retrieving changelog commits", resp.StatusCode))
+	}
+
+	var r ghCompareResponse
+	defer resp.Body.Close()
+	if err := json.NewDecoder(resp.Body).Decode(&r); err != nil {
+		panic(err)
+	}
+	return r
+}