Use POSIX way of generating sha256 hashes as suggested in PR comments

Author: xxuejie

.github/workflows/rust.yml

@@ -178,9 +178,7 @@ jobs:
         submodules: true
     - name: Install llvm 16
       run: brew install llvm@16
-    - name: Install coreutils
-      run: brew install coreutils
-    - name: Install docker
+    - name: Install riscv64 target
       run: rustup target add riscv64imac-unknown-none-elf
     - name: Install cargo generate
       run: cargo install cargo-generate
@@ -223,8 +221,6 @@ jobs:
       uses: douglascamata/setup-docker-macos-action@v1-alpha
     - name: Install llvm 16
       run: brew install llvm@16
-    - name: Install coreutils
-      run: brew install coreutils
     - name: Install riscv64 target
       run: rustup target add riscv64imac-unknown-none-elf
     - name: Install cargo generate

README.md

@@ -195,12 +195,6 @@ $ ./scripts/reproducible_build_docker --proxy "..." # Setup docker container so
 
 By default, the checksum file is stored in `checksums.txt` in the root of the repository. It is strongly recommended that this file is checked into version control, and a CI is setup so reproducible build is always checked in new commits.
 
-Note that reproducible build here relies on the presence of `sha256sum` command, if you are using macOS, you can install it via the following command:
-
-```
-brew install coreutils
-```
-
 ### Standalone Contract Crate
 
 In rare cases if you want to simply use a standalone contract crate without a workspace. The [standalone-contract](https://github.com/cryptape/ckb-script-templates/tree/main/standalone-contract) template is prepared for you:

standalone-contract/Makefile

@@ -78,6 +78,6 @@ prepare:
 # Generate checksum info for reproducible build
 CHECKSUM_FILE := build/checksums-$(MODE).txt
 checksum: build
-	sha256sum build/$(MODE)/* > $(CHECKSUM_FILE)
+	shasum -a 256 build/$(MODE)/* > $(CHECKSUM_FILE)
 
 .PHONY: build test check clippy fmt cargo clean prepare

standalone-contract/scripts/reproducible_build_docker

@@ -61,5 +61,5 @@ $DOCKER run --rm $DOCKER_RUN_ARGS -e UID=`id -u` -e GID=`id -g` -v `pwd`:/code $
 if [[ "${UPDATE}" = "yes" ]]; then
   echo "${CHECKSUM_FILE_PATH} file is updated with latest binary hashes!"
 else
-  sha256sum -c ${CHECKSUM_FILE_PATH}
+  shasum -a 256 -c ${CHECKSUM_FILE_PATH}
 fi

workspace/Makefile

@@ -110,6 +110,6 @@ prepare:
 # Generate checksum info for reproducible build
 CHECKSUM_FILE := build/checksums-$(MODE).txt
 checksum: build
-	sha256sum build/$(MODE)/* > $(CHECKSUM_FILE)
+	shasum -a 256 build/$(MODE)/* > $(CHECKSUM_FILE)
 
 .PHONY: build test check clippy fmt cargo clean prepare checksum

workspace/scripts/reproducible_build_docker

@@ -61,5 +61,5 @@ $DOCKER run --rm $DOCKER_RUN_ARGS -e UID=`id -u` -e GID=`id -g` -v `pwd`:/code $
 if [[ "${UPDATE}" = "yes" ]]; then
   echo "${CHECKSUM_FILE_PATH} file is updated with latest binary hashes!"
 else
-  sha256sum -c ${CHECKSUM_FILE_PATH}
+  shasum -a 256 -c ${CHECKSUM_FILE_PATH}
 fi