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perf: Share Cargo build cache across git worktrees (#60)

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Use a common target directory for all worktrees to avoid recompiling the backend in every worktree directory.
This commit is contained in:
Solomon
2025-07-07 15:27:00 +01:00
committed by GitHub
parent f82b6fd246
commit dc008b70ca
3 changed files with 41 additions and 9 deletions
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2
.cargo/config.toml
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@@ -1,7 +1,5 @@
[env]
# Set macOS deployment target to avoid linker warnings
# Use Rust project defaults: 10.12 for x86_64, 11.0 for aarch64
[target.x86_64-apple-darwin.env]
MACOSX_DEPLOYMENT_TARGET = "10.12"

17
package.json
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@@ -3,17 +3,20 @@
"version": "0.0.37",
"private": true,
"scripts": {
"dev": "export FRONTEND_PORT=$(node scripts/setup-dev-environment.js frontend) && export BACKEND_PORT=$(node scripts/setup-dev-environment.js backend) && concurrently \"cargo watch -w backend -x 'run --manifest-path backend/Cargo.toml'\" \"npm run frontend:dev\"",
"build": "npm run frontend:build && cargo build --release --manifest-path backend/Cargo.toml && cargo build --release --bin mcp_task_server --manifest-path backend/Cargo.toml",
"build:single": "npm run frontend:build && cargo build --release --manifest-path backend/Cargo.toml",
"dev": "export FRONTEND_PORT=$(node scripts/setup-dev-environment.js frontend) && export BACKEND_PORT=$(node scripts/setup-dev-environment.js backend) && concurrently \"npm run backend:dev:watch\" \"npm run frontend:dev\"",
"build": "npm run frontend:build && npm run backend:build",
"build:single": "npm run frontend:build && npm run backend:build:single",
"build:npm": "./build-npm-package.sh",
"test:npm": "./test-npm-package.sh",
"frontend:dev": "cd frontend && npm run dev -- --port ${FRONTEND_PORT:-3000} --open",
"frontend:build": "cd frontend && npm run build",
"backend:dev": "BACKEND_PORT=$(node scripts/setup-dev-environment.js backend) cargo watch -w backend -x 'run --manifest-path backend/Cargo.toml'",
"backend:build": "cargo build --release --manifest-path backend/Cargo.toml",
"backend:run": "cargo run --manifest-path backend/Cargo.toml",
"backend:test": "cargo test --lib",
"cargo": "node scripts/cargo.js",
"backend:dev": "BACKEND_PORT=$(node scripts/setup-dev-environment.js backend) npm run backend:dev:watch",
"backend:dev:watch": "npm run cargo -- watch -w backend -x 'run --manifest-path backend/Cargo.toml'",
"backend:build": "npm run cargo -- build --release --manifest-path backend/Cargo.toml && npm run cargo -- build --release --bin mcp_task_server --manifest-path backend/Cargo.toml",
"backend:build:single": "npm run cargo -- build --release --manifest-path backend/Cargo.toml",
"backend:run" : "npm run cargo -- run --manifest-path backend/Cargo.toml",
"backend:test" : "npm run cargo -- test --lib",
"generate-types": "cd backend && cargo run --bin generate_types",
"prepare-db": "node scripts/prepare-db.js",
"dev:clear-ports": "node scripts/setup-dev-environment.js clear"

31
scripts/cargo.js Normal file
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@@ -0,0 +1,31 @@
#!/usr/bin/env node
/**
* Drop-in replacement for the `cargo` binary.
* If CARGO_TARGET_DIR is already set we leave it alone.
* Otherwise we compute a path that is the same for every git-worktree:
* <main-clone-root>/target
*
* Usage : node scripts/cargo.js <cargo-subcommand> […]
* NPM : "backend:build": "node scripts/cargo.js build --release …"
*/
const { spawnSync, execSync } = require('node:child_process');
const path = require('node:path');
function sharedTarget() {
try {
// Works in any work-tree folder
const common = execSync('git rev-parse --git-common-dir', { encoding: 'utf8' }).trim();
return path.resolve(common, '..', 'target');
} catch {
return undefined; // not a git repo? -> let Cargo use ./target
}
}
const env = { ...process.env };
if (!env.CARGO_TARGET_DIR) {
const dir = sharedTarget();
if (dir) env.CARGO_TARGET_DIR = dir;
}
const result = spawnSync('cargo', process.argv.slice(2), { stdio: 'inherit', env });
process.exitCode = result.status;