110 lines
3.2 KiB
Bash
110 lines
3.2 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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# Nyash self-hosting dev loop helper
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# Goals:
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# - Avoid repeated Rust builds; iterate on .hako scripts only
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# - One-time ensure binary exists; then run with VM (default) or MIR
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# - Optional watch mode that re-runs on file changes (uses entr/inotifywait if available)
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ROOT_DIR=$(cd "$(dirname "$0")/.." && pwd)
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BIN="$ROOT_DIR/target/release/nyash"
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SCRIPT="apps/selfhost-minimal/main.hako"
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BACKEND="vm"
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WATCH=0
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LOAD_STD=0
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VERBOSE=0
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EXTRA_ARGS=()
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usage() {
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cat <<EOF
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Usage: tools/dev_selfhost_loop.sh [options] [script.hako] [-- ARGS]
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Options:
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--watch Re-run on file changes (apps/**/*.hako)
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--backend <mode> interpreter|mir|vm (default: vm)
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--std Load Ny std scripts from nyash.toml ([ny_plugins])
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-v, --verbose Verbose CLI output
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-h, --help Show this help
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Examples:
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# One-off run (VM), minimal selfhost sample
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tools/dev_selfhost_loop.sh apps/selfhost-minimal/main.hako
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# Watch mode with Ny std libs loaded
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tools/dev_selfhost_loop.sh --watch --std lang/src/compiler/entry/compiler_stageb.hako
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EOF
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}
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--watch) WATCH=1; shift ;;
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--backend) BACKEND="$2"; shift 2 ;;
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--std) LOAD_STD=1; shift ;;
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-v|--verbose) VERBOSE=1; shift ;;
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-h|--help) usage; exit 0 ;;
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--) shift; EXTRA_ARGS=("${@}"); break ;;
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*.hako) SCRIPT="$1"; shift ;;
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*) EXTRA_ARGS+=("$1"); shift ;;
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esac
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done
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if [[ ! -f "$BIN" ]]; then
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echo "[dev] nyash binary not found; building release (one-time)..."
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(cd "$ROOT_DIR" && cargo build --release --features cranelift-jit)
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fi
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run_once() {
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local envs=("NYASH_DISABLE_PLUGINS=1")
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if [[ "$LOAD_STD" -eq 1 ]]; then
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envs+=("NYASH_LOAD_NY_PLUGINS=1")
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fi
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if [[ "$VERBOSE" -eq 1 ]]; then
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envs+=("NYASH_CLI_VERBOSE=1")
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fi
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echo "[dev] running: ${envs[*]} $BIN --backend $BACKEND $SCRIPT ${EXTRA_ARGS[*]}"
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(cd "$ROOT_DIR" && \
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env ${envs[@]} "$BIN" --backend "$BACKEND" "$SCRIPT" "${EXTRA_ARGS[@]}" )
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}
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if [[ "$WATCH" -eq 0 ]]; then
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run_once
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exit $?
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fi
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# Watch mode
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echo "[dev] watch mode ON (backend=$BACKEND, std=$LOAD_STD)"
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FILES_CMD="rg --files --glob 'apps/**/*.hako'"
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if command -v entr >/dev/null 2>&1; then
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# Use entr for reliable cross-platform watching
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echo "[dev] using 'entr' for file watching"
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# Feed a stable, sorted file list to entr; rerun on any change
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eval "$FILES_CMD" | sort | entr -rs "bash -lc '$(printf %q "$ROOT_DIR")/tools/dev_selfhost_loop.sh --backend $(printf %q "$BACKEND") $( ((LOAD_STD)) && echo --std ) $( ((VERBOSE)) && echo -v ) $(printf %q "$SCRIPT") ${EXTRA_ARGS:+-- ${EXTRA_ARGS[*]@Q}}'"
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exit $?
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fi
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if command -v inotifywait >/dev/null 2>&1; then
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echo "[dev] using 'inotifywait' for file watching"
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while true; do
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run_once || true
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# Block until any .hako under apps changes
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inotifywait -qq -r -e close_write,create,delete,move "$ROOT_DIR/apps" || true
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done
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exit 0
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fi
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# Fallback: naive polling on mtime hash every 1s
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echo "[dev] no watcher found; falling back to 1s polling"
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prev_hash=""
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while true; do
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cur_hash=$( (cd "$ROOT_DIR" && eval "$FILES_CMD" | xargs -r stat -c '%Y %n' 2>/dev/null | md5sum | awk '{print $1}') )
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if [[ "$cur_hash" != "$prev_hash" ]]; then
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prev_hash="$cur_hash"
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run_once || true
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fi
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sleep 1
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done
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