tools: fix linting problem in update-llhttp

Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
Co-authored-by: Tobias Nießen <tniessen@tnie.de>
Co-authored-by: Luigi Pinca <luigipinca@gmail.com>

doc/contributing/maintaining-http.md

@@ -78,12 +78,12 @@ are maintained in the [llhttp](https://github.com/nodejs/llhttp)
 repository. Updates are pulled into Node.js under
 [deps/llhttp](https://github.com/nodejs/node/tree/HEAD/deps/llhttp).
 
-In order to update Node.js with a new version of llhttp you can use the 
+In order to update Node.js with a new version of llhttp you can use the
 `tools/update-llhttp.sh` script.
 
 The contents of the `deps/llhttp` folder should look like the following:
 
-```sh
+```bash
 $ find deps/llhttp
 
 deps/llhttp/
@@ -102,7 +102,7 @@ deps/llhttp/src/llhttp.c
 ```
 
 After updating, make sure the version in `CMakeLists.txt` and `include/llhttp.h`
-are the same and that they match the one you are expecting. 
+are the same and that they match the one you are expecting.
 
 The low-level implementation is made available in the Node.js API through
 JavaScript code in the [lib](https://github.com/nodejs/node/tree/HEAD/lib)

tools/update-llhttp.sh

@@ -1,10 +1,11 @@
-#!/bin/sh
-set -e
-# Shell script to update nghttp2 in the source treee to specific version
+#!/bin/bash
+set -euo pipefail
+shopt -s inherit_errexit
+# Shell script to update llhttp in the source tree to specific version
 
 BASE_DIR="$( pwd )"/
-DEPS_DIR="$BASE_DIR"deps/
-LLHTTP_VERSION=$1
+DEPS_DIR="${BASE_DIR}deps/"
+LLHTTP_VERSION="$1"
 
 if [ "$#" -le 0 ]; then
   echo "Error: Please provide an llhttp version to update to."
@@ -24,32 +25,32 @@ trap cleanup INT TERM EXIT
 
 cd "$WORKSPACE"
 
-if echo $LLHTTP_VERSION | grep -s "/" > /dev/null; then # Download a release
-  REPO=git@github.com:$LLHTTP_VERSION.git
+if echo "$LLHTTP_VERSION" | grep -qs "/" ; then # Download a release
+  REPO="git@github.com:$LLHTTP_VERSION.git"
   BRANCH=$2
-  [ -z $BRANCH ] && BRANCH=main
+  [ -z "$BRANCH" ] && BRANCH=main
 
   echo "Cloning llhttp source archive $REPO ..."
-  git clone $REPO llhttp
+  git clone "$REPO" llhttp
   cd llhttp
   echo "Checking out branch $BRANCH ..."
-  git checkout $BRANCH
+  git checkout "$BRANCH"
 
   echo "Building llhtttp ..."
   npm install
   make release
 
   echo "Copying llhtttp release ..."
-  rm -rf $DEPS_DIR/llhttp
-  cp -a release $DEPS_DIR/llhttp 
+  rm -rf "$DEPS_DIR/llhttp"
+  cp -a release "$DEPS_DIR/llhttp"
 else
   echo "Download llhttp release $LLHTTP_VERSION ..."
   curl -sL -o llhttp.tar.gz "https://github.com/nodejs/llhttp/archive/refs/tags/release/v$LLHTTP_VERSION.tar.gz"
   gzip -dc llhttp.tar.gz | tar xf -
 
   echo "Copying llhtttp release ..."
-  rm -rf $DEPS_DIR/llhttp
-  cp -a llhttp-release-v$LLHTTP_VERSION $DEPS_DIR/llhttp 
+  rm -rf "$DEPS_DIR/llhttp"
+  cp -a "llhttp-release-v$LLHTTP_VERSION" "$DEPS_DIR/llhttp"
 fi
 
 echo ""