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more useful setup instructions

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Lance Vick 2023-01-27 16:52:14 -08:00
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## About ##
A library of opinionated make functions targeting projects that either need
deterministic builds, or a shared deterministic toolchain shared across all
who use a project.
deterministic builds, or a deterministic toolchain shared across all who use a
project.
A dev of a Toolchain enabled project should never need to have anything
on their host system installed but docker, and git. Everything else will be
@ -38,22 +38,79 @@ us as desired.
* docker 18+
* GNU Make 4+
## Build ##
## Setup ##
1. Clone toolchain as a git submodule somewhere in your project
```
git submodule add https://codeburg.org/distrust/toolchain src/toolchain
```
2. Include toolchain Makefile in your root Makefile
```
include src/toolchain/Makefile
```
3. Define any build/dev dependencies for toolchain container
```
echo "libfaketime" >> config/toolchain/packages-base.txt
echo "build-essential" >> config/toolchain/packages-base.txt
```
4. Lock a base Debian container image hash
```
echo "DEBIAN_HASH=48b28b354484a7f0e683e340fa0e6e4c4bce3dc3aa0146fc2f78f443fde2c55d" >> config/global.env
```
5. Generate hashlocks files for all toolchain container dependencies
```
make toolchain-update
```
6. Define your artifact targets
```
$(OUT_DIR)/hello: toolchain \
$(call toolchain,$(USER)," \
cd $(SRC_DIR)/; \
gcc hello.c -o $(OUT_DIR)/hello
")
```
7. Define a release target for your project depending on manifest.txt
```
.PHONY: release
release: $(OUT_DIR)/hello $(OUT_DIR)/manifest.txt
mkdir -p $(RELEASE_DIR)
cp $(OUT_DIR)/my-binary $(RELEASE_DIR)/hello
cp $(OUT_DIR)/release.env $(RELEASE_DIR)/release.env
cp $(OUT_DIR)/manifest.txt $(RELEASE_DIR)/manifest.txt
```
Note that manifest.txt is optional, but it makes for an ideal single file
to sign if a release will contain more than one artifact.
## Usage ##
### Build a new release
```
make VERSION=1.0.0rc1 release
```
```
make VERSION=1.0.0rc1 release
```
### Reproduce an existing release
```
make VERSION=1.0.0rc1 attest
```
```
make VERSION=1.0.0rc1 attest
```
### Sign an existing release
```
make VERSION=1.0.0rc1 sign
```
```
make VERSION=1.0.0rc1 sign
```