Files
amethyst/tools
Claude f7a15a8407 build: make the Arti (Tor) native build reproducible
The libarti_android.so shipped in the APK is the one binary we compile
ourselves, and it was the remaining blocker to a verifiable build: a Rust
cdylib is only reproducible when the compiler, the dependency graph, and the
embedded build paths are all pinned. None were.

Pin all three:
- rust-toolchain.toml pins rustc (rustup auto-installs it + the Android
  targets), so codegen is stable across machines.
- Cargo.lock is now generated and committed (501 packages); both build
  scripts run `cargo --locked` so transitive versions can't drift.
- repro-env.sh (sourced by build-arti.sh and build-arti-host.sh) rewrites
  host-specific absolute paths with --remap-path-prefix, disables incremental
  compilation, and sets a fixed SOURCE_DATE_EPOCH derived from the Arti tag.

With these, an independent rebuild of the pinned tag reproduces the committed
.so bit-for-bit, which is what lets F-Droid / Zapstore verify it from source
instead of trusting a prebuilt blob. README documents the pins and a
two-path build-and-diff verification recipe.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JtjUcSjjpu4auFndw1QKeU
2026-06-26 23:01:48 +00:00
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