update bootstrap

internal/build-bootstrapper/assets/main.sh

@@ -3,10 +3,8 @@ GITHUB_DOWNLOAD=https://github.com/WillAbides/bindown/releases/download
 
 usage() {
   this=$1
-  cat <<EOT
+  cat << EOT
 Usage: $this [-b bindir] [-d]
-
-Usage: $this [-b] bindir [-d]
   -b sets bindir or installation directory, Defaults to ./bin
   -d turns on debug logging
 
@@ -30,6 +28,14 @@ parse_args() {
   shift $((OPTIND - 1))
 }
 
+bindown_name() {
+  if [ "$OS" = "windows" ]; then
+    echo bindown.exe
+  else
+    echo bindown
+  fi
+}
+
 execute() {
   tmpdir=$(mktemp -d)
   echo "$CHECKSUMS" > "${tmpdir}/checksums.txt"
@@ -39,15 +45,17 @@ execute() {
   srcdir="${tmpdir}"
   (cd "${tmpdir}" && untar "${TARBALL}")
   test ! -d "${BINDIR}" && install -d "${BINDIR}"
-  binexe="bindown"
-  if [ "$OS" = "windows" ]; then
-    binexe="${binexe}.exe"
-  fi
-  install "${srcdir}/${binexe}" "${BINDIR}/"
-  log_info "installed ${BINDIR}/${binexe}"
+  install "${srcdir}/$(bindown_name)" "${BINDIR}/"
+  log_info "installed ${BINDIR}/$(bindown_name)"
   rm -rf "${tmpdir}"
 }
 
+already_installed() {
+  VERSION="$1"
+  [ -f "${BINDIR}/$(bindown_name)" ] &&
+    "${BINDIR}/$(bindown_name)" version 2> /dev/null | grep -q "$VERSION"
+}
+
 OS=$(uname_os)
 ARCH=$(uname_arch)
 
@@ -57,6 +65,12 @@ uname_arch_check "$ARCH"
 parse_args "$@"
 
 VERSION=${TAG#v}
+
+if already_installed "$VERSION"; then
+  log_debug "bindown ${VERSION} is already installed"
+  exit 0
+fi
+
 NAME=bindown_${VERSION}_${OS}_${ARCH}
 TARBALL=${NAME}.${FORMAT}
 TARBALL_URL=${GITHUB_DOWNLOAD}/${TAG}/${TARBALL}

internal/build-bootstrapper/assets/shlib.sh

@@ -1,4 +1,4 @@
-cat /dev/null <<EOF
+cat /dev/null << EOF
 ------------------------------------------------------------------------
 https://github.com/client9/shlib - portable posix shell functions
 Public domain - http://unlicense.org
@@ -7,7 +7,7 @@ but credit (and pull requests) appreciated.
 ------------------------------------------------------------------------
 EOF
 is_command() {
-  command -v "$1" >/dev/null
+  command -v "$1" > /dev/null
 }
 echoerr() {
   echo "$@" 1>&2
@@ -175,7 +175,7 @@ hash_sha256() {
     hash=$(sha256sum "$TARGET") || return 1
     echo "$hash" | cut -d ' ' -f 1
   elif is_command shasum; then
-    hash=$(shasum -a 256 "$TARGET" 2>/dev/null) || return 1
+    hash=$(shasum -a 256 "$TARGET" 2> /dev/null) || return 1
     echo "$hash" | cut -d ' ' -f 1
   elif is_command openssl; then
     hash=$(openssl -dst openssl dgst -sha256 "$TARGET") || return 1
@@ -193,7 +193,7 @@ hash_sha256_verify() {
     return 1
   fi
   BASENAME=${TARGET##*/}
-  want=$(grep "${BASENAME}" "${checksums}" 2>/dev/null | tr '\t' ' ' | cut -d ' ' -f 1)
+  want=$(grep "${BASENAME}" "${checksums}" 2> /dev/null | tr '\t' ' ' | cut -d ' ' -f 1)
   if [ -z "$want" ]; then
     log_err "hash_sha256_verify unable to find checksum for '${TARGET}' in '${checksums}'"
     return 1
@@ -204,7 +204,7 @@ hash_sha256_verify() {
     return 1
   fi
 }
-cat /dev/null <<EOF
+cat /dev/null << EOF
 ------------------------------------------------------------------------
 End of functions from https://github.com/client9/shlib
 ------------------------------------------------------------------------

internal/build-bootstrapper/build.go

@@ -5,7 +5,8 @@ import (
 	"embed"
 	"flag"
 	"fmt"
-	"os"
+	"io"
+	"net/http"
 	"os/exec"
 	"path/filepath"
 	"strings"
@@ -15,69 +16,31 @@ import (
 //go:embed assets/*
 var assets embed.FS
 
-func execBindown(repoRoot string, arg ...string) error {
-	bootstrapCmd := exec.Command("script/bootstrap-bindown.sh", "-b", "bin/bootstrapped")
-	bootstrapCmd.Dir = repoRoot
-	err := bootstrapCmd.Run()
-	if err != nil {
-		return err
-	}
-	bindownCmd := exec.Command("bin/bootstrapped/bindown", arg...)
-	bindownCmd.Dir = repoRoot
-	return bindownCmd.Run()
-}
-
 func build(tag, repoRoot string) (_ string, errOut error) {
-	tmpDir, err := os.MkdirTemp("", "")
-	if err != nil {
-		return "", err
-	}
-	defer func() {
-		rmErr := os.RemoveAll(tmpDir)
-		if errOut == nil {
-			errOut = rmErr
-		}
-	}()
-	err = execBindown(repoRoot, "install", "shfmt")
-	if err != nil {
-		return "", err
-	}
-	err = execBindown(repoRoot, "install", "shellcheck")
+	bindownCmd := exec.Command("script/bindown", "install", "shfmt", "shellcheck")
+	bindownCmd.Dir = repoRoot
+	err := bindownCmd.Run()
 	if err != nil {
 		return "", err
 	}
-	err = execBindown(
-		repoRoot,
-		"dependency",
-		"add",
-		"bindown-checksums",
-		"bindown-checksums",
-		"--var",
-		fmt.Sprintf("tag=%s", tag),
-		"--skipchecksums",
+	checksumsURL := fmt.Sprintf(
+		`https://github.com/WillAbides/bindown/releases/download/%s/checksums.txt`,
+		tag,
 	)
+	resp, err := http.Get(checksumsURL)
 	if err != nil {
 		return "", err
 	}
 	defer func() {
-		removeErr := execBindown(repoRoot, "dependency", "remove", "bindown-checksums")
-		if errOut != nil {
-			errOut = removeErr
+		err = resp.Body.Close()
+		if errOut == nil {
+			errOut = err
 		}
 	}()
-	checksumsDir := filepath.Join(tmpDir, "checksums")
-	err = execBindown(
-		repoRoot,
-		"extract",
-		"bindown-checksums",
-		"--allow-missing-checksum",
-		"--output",
-		checksumsDir,
-	)
-	if err != nil {
-		return "", err
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("got status %d from %s", resp.StatusCode, checksumsURL)
 	}
-	checksums, err := os.ReadFile(filepath.Join(checksumsDir, "checksums.txt"))
+	checksums, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return "", err
 	}

internal/build-bootstrapper/build_test.go

@@ -6,7 +6,6 @@ import (
 	"runtime"
 	"testing"
 
-	"github.com/google/go-cmp/cmp"
 	"github.com/stretchr/testify/require"
 )
 
@@ -20,11 +19,15 @@ func TestBuild(t *testing.T) {
 	}
 	origConfig, err := os.ReadFile(filepath.FromSlash("../../bindown.yml"))
 	require.NoError(t, err)
+	t.Cleanup(func() {
+		require.NoError(
+			t,
+			os.WriteFile(filepath.FromSlash("../../bindown.yml"), origConfig, 0o644),
+		)
+	})
 	got, err := build("v4.0.0", filepath.FromSlash("../../"))
 	require.NoError(t, err)
 	want, err := os.ReadFile(filepath.FromSlash("testdata/want.txt"))
 	require.NoError(t, err)
-	require.Empty(t, cmp.Diff(string(want), got))
-	err = os.WriteFile(filepath.FromSlash("../../bindown.yml"), origConfig, 0o644)
-	require.NoError(t, err)
+	require.Equal(t, string(want), got)
 }

internal/build-bootstrapper/testdata/want.txt

@@ -242,8 +242,6 @@ usage() {
   this=$1
   cat << EOT
 Usage: $this [-b bindir] [-d]
-
-Usage: $this [-b] bindir [-d]
   -b sets bindir or installation directory, Defaults to ./bin
   -d turns on debug logging
 
@@ -267,6 +265,14 @@ parse_args() {
   shift $((OPTIND - 1))
 }
 
+bindown_name() {
+  if [ "$OS" = "windows" ]; then
+    echo bindown.exe
+  else
+    echo bindown
+  fi
+}
+
 execute() {
   tmpdir=$(mktemp -d)
   echo "$CHECKSUMS" > "${tmpdir}/checksums.txt"
@@ -276,15 +282,17 @@ execute() {
   srcdir="${tmpdir}"
   (cd "${tmpdir}" && untar "${TARBALL}")
   test ! -d "${BINDIR}" && install -d "${BINDIR}"
-  binexe="bindown"
-  if [ "$OS" = "windows" ]; then
-    binexe="${binexe}.exe"
-  fi
-  install "${srcdir}/${binexe}" "${BINDIR}/"
-  log_info "installed ${BINDIR}/${binexe}"
+  install "${srcdir}/$(bindown_name)" "${BINDIR}/"
+  log_info "installed ${BINDIR}/$(bindown_name)"
   rm -rf "${tmpdir}"
 }
 
+already_installed() {
+  VERSION="$1"
+  [ -f "${BINDIR}/$(bindown_name)" ] &&
+    "${BINDIR}/$(bindown_name)" version 2> /dev/null | grep -q "$VERSION"
+}
+
 OS=$(uname_os)
 ARCH=$(uname_arch)
 
@@ -294,6 +302,12 @@ uname_arch_check "$ARCH"
 parse_args "$@"
 
 VERSION=${TAG#v}
+
+if already_installed "$VERSION"; then
+  log_debug "bindown ${VERSION} is already installed"
+  exit 0
+fi
+
 NAME=bindown_${VERSION}_${OS}_${ARCH}
 TARBALL=${NAME}.${FORMAT}
 TARBALL_URL=${GITHUB_DOWNLOAD}/${TAG}/${TARBALL}