From c05d0f56b67fb36fcc31eaf18eb114544345a88a Mon Sep 17 00:00:00 2001
From: pablochacin <pablochacin@gmail.com>
Date: Mon, 18 Nov 2024 12:41:48 +0100
Subject: [PATCH] use go-depsync package (#434)

Signed-off-by: Pablo Chacin <pablochacin@gmail.com>
---
 .github/workflows/sync-core-deps.yaml |   1 -
 hack/depsync.sh                       |   6 +-
 hack/depsync/depsync.go               | 108 --------------------------
 3 files changed, 5 insertions(+), 110 deletions(-)
 delete mode 100644 hack/depsync/depsync.go

diff --git a/.github/workflows/sync-core-deps.yaml b/.github/workflows/sync-core-deps.yaml
index 46cf25ff..cd2c4c6a 100644
--- a/.github/workflows/sync-core-deps.yaml
+++ b/.github/workflows/sync-core-deps.yaml
@@ -22,7 +22,6 @@ jobs:
           go-version: "1.21"
       - name: Sync dependencies
         run: |
-          git checkout -b "$BRANCH_NAME"
           ./hack/depsync.sh
 
           if [[ -z "$(git status --porcelain --untracked-files=no)" ]]; then
diff --git a/hack/depsync.sh b/hack/depsync.sh
index 63bec66a..c4d696a5 100755
--- a/hack/depsync.sh
+++ b/hack/depsync.sh
@@ -2,9 +2,13 @@
 
 set -eo pipefail
 
+go install github.com/grafana/go-depsync@latest
+
 tmpdir=$(mktemp -d)
 
-gogetcmd=$(go run ./hack/depsync 2>"$tmpdir/deps.log")
+
+
+gogetcmd=$(go-depsync --parent go.k6.io/k6  2>"$tmpdir/deps.log")
 
 if [[ -z $gogetcmd ]]; then
 	echo "Nothing to do."
diff --git a/hack/depsync/depsync.go b/hack/depsync/depsync.go
deleted file mode 100644
index 9f7b45ee..00000000
--- a/hack/depsync/depsync.go
+++ /dev/null
@@ -1,108 +0,0 @@
-// main is the main package for depsync, a script that checks and provides commands to synchronize
-// common dependencies with k6 core.
-package main
-
-import (
-	"bufio"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"net/http"
-	"os"
-	"sort"
-	"strings"
-)
-
-const (
-	k6Core     = "go.k6.io/k6"
-	k6GoModURL = "https://proxy.golang.org/go.k6.io/k6/@v/%s.mod"
-)
-
-func main() {
-	gomod := "go.mod"
-	if len(os.Args) >= 2 {
-		gomod = os.Args[1]
-	}
-
-	file, err := os.Open(gomod)
-	if err != nil {
-		log.Fatalf("opening go.mod: %v", err)
-	}
-
-	ownDeps, err := dependencies(file)
-	if err != nil {
-		log.Fatalf("reading dependencies: %v", err)
-	}
-
-	k6Version := ownDeps[k6Core]
-	log.Printf("detected k6 core version %s", k6Version)
-
-	k6CoreVersionedURL := fmt.Sprintf(k6GoModURL, k6Version)
-	//nolint:bodyclose // Single-run script.
-	response, err := http.Get(k6CoreVersionedURL)
-	if err != nil {
-		log.Fatalf("error fetching k6 go.mod: %v", err)
-	}
-
-	if response.StatusCode != http.StatusOK {
-		log.Fatalf("got HTTP status %d for %s", response.StatusCode, k6CoreVersionedURL)
-	}
-
-	coreDeps, err := dependencies(response.Body)
-	if err != nil {
-		log.Fatalf("reading k6 core dependencies: %v", err)
-	}
-
-	//nolint:prealloc // Number of mismatched deps cannot be accurately predicted.
-	var mismatched []string
-	for dep, version := range ownDeps {
-		coreVersion, inCore := coreDeps[dep]
-		if !inCore {
-			continue
-		}
-
-		if version == coreVersion {
-			continue
-		}
-
-		log.Printf("Mismatched versions for %s: %s (ours) -> %s (core)", dep, version, coreVersion)
-		mismatched = append(mismatched, fmt.Sprintf("%s@%s", dep, coreVersion))
-	}
-
-	if len(mismatched) == 0 {
-		log.Println("All deps are in sync, nothing to do.")
-		return
-	}
-
-	// TODO: Use slices.Sort when we move to a go version that has it on the stdlib.
-	sort.Strings(mismatched)
-
-	//nolint:forbidigo // We are willingly writing to stdout here.
-	fmt.Printf("go get %s\n", strings.Join(mismatched, " "))
-}
-
-func dependencies(reader io.Reader) (map[string]string, error) {
-	buf := bufio.NewReader(reader)
-
-	deps := make(map[string]string)
-	for {
-		line, err := buf.ReadString('\n')
-		if errors.Is(err, io.EOF) {
-			return deps, nil
-		}
-
-		if err != nil {
-			return nil, fmt.Errorf("reading go.mod: %w", err)
-		}
-
-		if !strings.HasPrefix(line, "\t") {
-			continue
-		}
-
-		line = strings.TrimPrefix(line, "\t")
-		line = strings.TrimSuffix(line, "\n")
-		pieces := strings.Split(line, " ")
-		deps[pieces[0]] = pieces[1]
-	}
-}