From 1ce335c7fdd2f330828db605dda38868d595b48e Mon Sep 17 00:00:00 2001
From: Amp <amp@ampcode.com>
Date: Tue, 15 Sep 2026 18:03:30 +0000
Subject: [PATCH] chore: add Amp orb setup/resume and ignore generated
 artifacts

Bootstrap rustup, rustfmt, clippy, and a C toolchain for Amp orbs.
Keep .agents and .amp out of published crates, ignore example build
output, and drop the checked-in preprocessor dump.

Amp-Thread-ID: https://ampcode.com/threads/T-01a0a631-cbad-764e-a59c-662f4c6e0902
Co-authored-by: Max Carter <undivisible@vk.com>
---
 .agents/resume                 | 22 +++++++++++
 .agents/setup                  | 72 ++++++++++++++++++++++++++++++++++
 .gitignore                     |  2 +
 Cargo.toml                     |  2 +-
 examples/demo-app/build/math.c | 20 ----------
 5 files changed, 97 insertions(+), 21 deletions(-)
 create mode 100755 .agents/resume
 create mode 100755 .agents/setup
 delete mode 100644 examples/demo-app/build/math.c

diff --git a/.agents/resume b/.agents/resume
new file mode 100755
index 0000000..003c126
--- /dev/null
+++ b/.agents/resume
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Fast reconnect/repair after orb pause. Do not install packages here.
+set -euo pipefail
+
+export CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"
+export RUSTUP_HOME="${RUSTUP_HOME:-$HOME/.rustup}"
+export PATH="${CARGO_HOME}/bin:${PATH}"
+
+if [ -f "${CARGO_HOME}/env" ]; then
+  # shellcheck disable=SC1091
+  source "${CARGO_HOME}/env"
+fi
+
+if ! command -v rustc >/dev/null 2>&1; then
+  echo "[resume] rustc missing from PATH; run .agents/setup" >&2
+  exit 1
+fi
+
+if ! command -v cc >/dev/null 2>&1 && ! command -v gcc >/dev/null 2>&1; then
+  echo "[resume] C compiler missing; run .agents/setup" >&2
+  exit 1
+fi
diff --git a/.agents/setup b/.agents/setup
new file mode 100755
index 0000000..d5c147e
--- /dev/null
+++ b/.agents/setup
@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+# Fresh-orb bootstrap for equilibrium-ffi (Rust library + optional eq CLI).
+set -euo pipefail
+
+log() { printf '[setup] %s\n' "$*"; }
+step() {
+  local label="$1"
+  shift
+  local start
+  start="$(date +%s)"
+  log "start: ${label}"
+  "$@"
+  log "done: ${label} ($(( $(date +%s) - start ))s)"
+}
+
+need_apt() {
+  local pkg
+  for pkg in "$@"; do
+    if ! dpkg -s "$pkg" >/dev/null 2>&1; then
+      return 0
+    fi
+  done
+  return 1
+}
+
+if need_apt build-essential ca-certificates curl pkg-config; then
+  step "apt-get update" sudo apt-get update -qq
+  step "apt install build tools" sudo apt-get install -y --no-install-recommends \
+    build-essential ca-certificates curl pkg-config
+else
+  log "apt packages already present"
+fi
+
+export CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"
+export RUSTUP_HOME="${RUSTUP_HOME:-$HOME/.rustup}"
+export PATH="${CARGO_HOME}/bin:${PATH}"
+
+if ! command -v rustup >/dev/null 2>&1; then
+  step "install rustup" bash -c 'curl --proto "=https" --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal'
+else
+  log "rustup already installed"
+fi
+# shellcheck disable=SC1091
+source "${CARGO_HOME}/env"
+
+step "ensure stable toolchain" rustup toolchain install stable --profile minimal --no-self-update
+step "ensure rustfmt+clippy" rustup component add rustfmt clippy --toolchain stable
+
+# Persist PATH for later non-interactive login shells (Amp / services).
+profile_marker="# equilibrium-ffi rustup PATH"
+if ! grep -Fqx "$profile_marker" "$HOME/.bash_profile" 2>/dev/null; then
+  cat >> "$HOME/.bash_profile" <<EOF
+
+$profile_marker
+if [ -f "\$HOME/.cargo/env" ]; then
+  # shellcheck disable=SC1091
+  . "\$HOME/.cargo/env"
+fi
+EOF
+  log "appended rustup env to ~/.bash_profile"
+else
+  log "rustup PATH already in ~/.bash_profile"
+fi
+
+if [ -f Cargo.toml ]; then
+  # This crate gitignores Cargo.lock (library crate); fetch latest resolved graph.
+  step "cargo fetch" cargo fetch
+fi
+
+log "rustc=$(command -v rustc) $(rustc --version)"
+log "cargo=$(command -v cargo) $(cargo --version)"
+log "cc=$(command -v cc || true)"
diff --git a/.gitignore b/.gitignore
index f506520..39410bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,11 @@
 /target
 Cargo.lock
 .DS_Store
+.amp/portals/*
 equilibrium-rust/target
 examples/*/target
 examples/*/native
+examples/*/build
 examples/c-ffi/build
 examples/c-ffi/*.so
 examples/c-ffi/*.dylib
diff --git a/Cargo.toml b/Cargo.toml
index c13c7f5..d2e607c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 description = "Automatic C FFI generation for C-compiling languages (V, Zig, C++, C#, Rust, D, Nim, Odin) (unstable and in development)"
 license = "ISC"
 repository = "https://github.com/tschk/equilibrium"
-exclude = ["AGENTS.md"]
+exclude = ["AGENTS.md", ".agents", ".amp"]
 
 [dependencies]
 which = "6"
diff --git a/examples/demo-app/build/math.c b/examples/demo-app/build/math.c
deleted file mode 100644
index a869882..0000000
--- a/examples/demo-app/build/math.c
+++ /dev/null
@@ -1,20 +0,0 @@
-# 1 "/home/undivisible/equilibrium/demo-app/foreign-code/math.c"
-# 1 "<built-in>" 1
-# 1 "<built-in>" 3
-# 406 "<built-in>" 3
-# 1 "<command line>" 1
-# 1 "<built-in>" 2
-# 1 "/home/undivisible/equilibrium/demo-app/foreign-code/math.c" 2
-
-int c_add(int a, int b) {
-    return a + b;
-}
-
-int c_factorial(int n) {
-    if (n <= 1) return 1;
-    int result = 1;
-    for (int i = 2; i <= n; i++) {
-        result *= i;
-    }
-    return result;
-}