109 lines
2.7 KiB
Markdown
109 lines
2.7 KiB
Markdown
# Toolchain #
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<https://codeberg.org/distrust/toolchain>
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## About ##
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A library of opinionated make functions targeting projects that either need
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deterministic builds, or a deterministic toolchain shared across all who use a
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project.
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A dev of a Toolchain enabled project should never need to have anything
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on their host system installed but docker, and git. Everything else will be
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provided via a Docker container.
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Debian currently has the highest reproducibility score of any major Linux
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distribution, and as such it is the chosen base for Toolchain.
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This was built for Distrust projects, and some of our clients. It is unlikely
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to meet the needs of everyone. We suggest including this in your project as
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a git subtree, so you can make your own changes, but also pull in changes from
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us as desired.
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## Uses ##
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* Ensure everyone on a team is using the exact same tools
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* Ensure all releases and artifacts build hash-for-hash identical every time
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* Control supply chain security with only signed/reproducible dependencies
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## Features ##
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* Can run a shell with all toolchain tooling in the current directory
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* Provide make functions for common tasks
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* Git clone, apply patches, etc.
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* Use a global env file as configuration
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* Hash-locking of apt dependencies from a list of top-level required packages
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* Provides release.env file with required vars to re-create old releases
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## Requirements ##
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* docker 18+
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* GNU Make 4+
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## Setup ##
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1. Clone toolchain as a git submodule somewhere in your project
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```
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git submodule add https://codeberg.org/distrust/toolchain src/toolchain
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```
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2. Include toolchain Makefile in your root Makefile
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```
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include src/toolchain/Makefile
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```
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3. Define any build/dev dependencies for toolchain container
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```
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echo "libfaketime" >> config/toolchain/packages-base.txt
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echo "build-essential" >> config/toolchain/packages-base.txt
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```
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4. Lock a base Debian container image hash
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```
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echo "DEBIAN_HASH=48b28b354484a7f0e683e340fa0e6e4c4bce3dc3aa0146fc2f78f443fde2c55d" >> config/toolchain.env
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```
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5. Generate pinned hashes for all toolchain container dependencies
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```
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make toolchain-update
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```
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6. Define your artifact targets
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```
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$(OUT_DIR)/hello: toolchain \
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$(call toolchain,$(USER)," \
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cd $(SRC_DIR)/; \
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gcc hello.c -o $(OUT_DIR)/hello
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")
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```
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## Usage ##
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### Build a new release with named version
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```
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make VERSION=1.0.0rc1 dist
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```
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### Reproduce an existing release
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```
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make reproduce
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```
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### Add and lock a new container dependency
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```
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echo "vim-nox" >> config/toolchain/packages-base.txt
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make toolchain-update
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```
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### Run a shell in the toolchain container
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```
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make toolchain-shell
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```
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