chore: update abigen build script and go version src in ci

core/gethwrappers/abigen.go

@@ -9,7 +9,6 @@ import (
 	"go/token"
 	"os"
 	"os/exec"
-	"path/filepath"
 	"regexp"
 	"strings"
 
@@ -40,8 +39,7 @@ type AbigenArgs struct {
 // Check whether native abigen is installed, and has correct version
 func Abigen(a AbigenArgs) {
 	var versionResponse bytes.Buffer
-	abigenExecutablePath := filepath.Join(GetProjectRoot(), "tools/bin/abigen")
-	abigenVersionCheck := exec.Command(abigenExecutablePath, "--version")
+	abigenVersionCheck := exec.Command("abigen", "--version")
 	abigenVersionCheck.Stdout = &versionResponse
 	if err := abigenVersionCheck.Run(); err != nil {
 		Exit("no native abigen; you must install it (`make abigen` in the "+
@@ -64,7 +62,7 @@ func Abigen(a AbigenArgs) {
 	if a.Bin != "-" {
 		args = append(args, "-bin", a.Bin)
 	}
-	buildCommand := exec.Command(abigenExecutablePath, args...)
+	buildCommand := exec.Command("abigen", args...)
 	var buildResponse bytes.Buffer
 	buildCommand.Stderr = &buildResponse
 	if err := buildCommand.Run(); err != nil {

tools/bin/build_abigen

@@ -3,40 +3,19 @@
 # Checks that the correct abigen is installed in this directory, and installs it
 # if not.
 
-set -e
+set -euo pipefail
 
 # Version of abigen to install. Must be run within chainlink project
 GETH_VERSION=$(go list -json -m github.com/ethereum/go-ethereum | jq -r .Version)
-GETH_REPO_URL="https://github.com/ethereum/go-ethereum"
-
-function realpath { echo $(cd $(dirname $1); pwd)/$(basename $1); }
-THIS_DIR="$(realpath "$(dirname $0)")"
 
 NATIVE_ABIGEN_VERSION=v"$(
-    "$THIS_DIR/abigen" --version 2> /dev/null | \
-    grep -E -o '([0-9]+\.[0-9]+\.[0-9]+)'
+    abigen --version 2>/dev/null |
+        grep -E -o '([0-9]+\.[0-9]+\.[0-9]+)'
 )" || true
 
 if [ "$NATIVE_ABIGEN_VERSION" == "$GETH_VERSION" ]; then
     echo "Correct abigen version already installed."
     exit 0
 fi
 
-function cleanup() {
-    rm -rf "$TMPDIR"
-}
-
-trap cleanup EXIT
-
-TMPDIR="$(mktemp -d)"
-
-pushd "$TMPDIR"
-
-git clone --depth=1 --single-branch --branch "$GETH_VERSION" "$GETH_REPO_URL"
-cd go-ethereum/cmd/abigen
-go build
-rm -f "$THIS_DIR/abigen" # necessary on MacOS for code signing
-cp ./abigen "$THIS_DIR"
-
-popd
-
+go install github.com/ethereum/go-ethereum/cmd/abigen@$GETH_VERSION