Added a justfile recipe for installing protoc

Author: jclapis

docs/docs/get_started/building.md

@@ -53,24 +53,17 @@ sudo apt update && sudo apt install -y openssl ca-certificates libssl3 libssl-de
 Install the Protobuf compiler:
 
 :::note
-While many package repositories provide a `protobuf-compiler` package in lieu of manually installing protoc, we've found at the time of this writing that most of them use v3.21 which is quite out of date. We recommend getting the latest version manually.
+While many package repositories provide a `protobuf-compiler` package in lieu of manually installing protoc, we've found at the time of this writing that Debian-based ones use v3.21 which is quite out of date. We recommend getting the latest version manually.
 :::
 
+We provide a convenient recipe to install the latest version directly from the GitHub releases page:
+
 ```bash
-PROTOC_VERSION=$(curl -s "https://api.github.com/repos/protocolbuffers/protobuf/releases/latest" | grep -Po '"tag_name": "v\K[0-9.]+')
-MACHINE_ARCH=$(uname -m)
-case "${MACHINE_ARCH}" in
-    aarch64) PROTOC_ARCH=aarch_64;;
-    x86_64) PROTOC_ARCH=x86_64;;
-    *) echo "${MACHINE_ARCH} is not supported."; exit 1;;
-esac
-curl -sLo protoc.zip https://github.com/protocolbuffers/protobuf/releases/latest/download/protoc-$PROTOC_VERSION-linux-$PROTOC_ARCH.zip
-sudo unzip -q protoc.zip bin/protoc -d /usr
-sudo unzip -q protoc.zip "include/google/*" -d /usr
-sudo chmod a+x /usr/bin/protoc
-rm -rf protoc.zip
+just install-protoc
 ```
 
+This works on OSX and Linux systems, but you are welcome to download and install it manually as well.
+
 With the prerequisites set up, pull the repository:
 ```bash
 git clone https://github.com/Commit-Boost/commit-boost-client

justfile

@@ -179,6 +179,9 @@ _docker-build-image-multiarch version crate local-docker-registry: _create-docke
 # === Utilities ===
 # =================
 
+install-protoc:
+  provisioning/protoc.sh
+
 docker-build-test-modules:
   docker build -t test_da_commit . -f examples/da_commit/Dockerfile
   docker build -t test_builder_log . -f examples/builder_log/Dockerfile

provisioning/protoc.sh

@@ -21,7 +21,10 @@ case "$(uname)" in
     Linux*)
         PROTOC_OS="linux" ;
         TARGET_DIR="/usr" ; # Assumes the script is run as root or the user can do it manually
-        apt update && apt install -y unzip curl ca-certificates jq ;;
+        if [ $(id -u) != "0" ]; then
+            CMD_PREFIX="sudo " ;
+        fi
+        ${CMD_PREFIX}apt update && ${CMD_PREFIX}apt install -y unzip curl ca-certificates jq ;;
     *)
         echo "Unsupported OS: $(uname)" ;
         exit 1 ;;
@@ -50,8 +53,8 @@ echo "Installing protoc: $PROTOC_VERSION-$PROTOC_OS-$PROTOC_ARCH"
 
 # Download and install protoc
 curl --retry 10 --retry-delay 2 --retry-all-errors -fsLo protoc.zip https://github.com/protocolbuffers/protobuf/releases/latest/download/protoc-$PROTOC_VERSION-$PROTOC_OS-$PROTOC_ARCH.zip || fail "Failed to download protoc"
-unzip -q protoc.zip bin/protoc -d $TARGET_DIR || fail "Failed to unzip protoc"
-unzip -q protoc.zip "include/google/*" -d $TARGET_DIR || fail "Failed to unzip protoc includes"
-chmod a+x $TARGET_DIR/bin/protoc || fail "Failed to set executable permissions for protoc"
+${CMD_PREFIX}unzip -qo protoc.zip bin/protoc -d $TARGET_DIR || fail "Failed to unzip protoc"
+${CMD_PREFIX}unzip -qo protoc.zip "include/google/*" -d $TARGET_DIR || fail "Failed to unzip protoc includes"
+${CMD_PREFIX}chmod a+x $TARGET_DIR/bin/protoc || fail "Failed to set executable permissions for protoc"
 rm -rf protoc.zip || fail "Failed to remove protoc zip file"
 echo "protoc ${PROTOC_VERSION} installed successfully for ${PROTOC_OS} ${PROTOC_ARCH}"