221 lines
7.6 KiB
Bash
Executable File
221 lines
7.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build Magic WASM and copy artifacts into this npm/ directory.
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#
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# Usage:
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# npm/build.sh [--variant=<tcl|notcl|both>] [--release] [--test] [--pack]
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#
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# --variant=tcl Build only the TCL-embedded variant → npm/tcl/
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# --variant=notcl Build only the plain (no Tcl/Tk) variant → npm/notcl/
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# --variant=both Build both (default)
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#
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# --release Omit debug symbols (-g) and build with -O2.
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# --test Run `npm run test` after copying artifacts.
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# --pack Run `npm pack` after copying artifacts (and tests, if given).
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#
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# Requirements (must be on PATH or set via env vars before running):
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# emcc / emmake / emconfigure — Emscripten compiler tools
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# make, gcc — standard build tools
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# node, npm — only required for --test / --pack
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#
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# Environment:
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# EMSDK_DIR Path to an activated emsdk checkout.
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# If set, emsdk_env.sh is sourced from there.
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# If unset, emcc must already be on PATH (e.g. sourced externally).
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# TCL_REPO Override the path to the tcltk/tcl checkout (default:
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# ../tcl relative to this magic checkout). Used by the TCL
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# variant only.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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REPO_ROOT="$(dirname "$SCRIPT_DIR")"
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# The TCL variant builds against a sibling clone of tcltk/tcl (pristine —
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# magic never modifies it). The build itself happens inside magic under
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# build-tcl-wasm/, so the TCL source tree stays clean.
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TCL_REPO="${TCL_REPO:-$(dirname "$REPO_ROOT")/tcl}"
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TCL_BUILD_DIR="${TCL_BUILD_DIR:-$REPO_ROOT/build-tcl-wasm}"
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TCL_WASM_PREFIX="$TCL_BUILD_DIR/install"
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OPT_RELEASE=0
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OPT_TEST=0
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OPT_PACK=0
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OPT_VARIANT=both
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for arg in "$@"; do
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case "$arg" in
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--release) OPT_RELEASE=1 ;;
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--test) OPT_TEST=1 ;;
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--pack) OPT_PACK=1 ;;
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--variant=tcl) OPT_VARIANT=tcl ;;
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--variant=notcl) OPT_VARIANT=notcl ;;
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--variant=both) OPT_VARIANT=both ;;
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*) echo "Unknown option: $arg" >&2; exit 1 ;;
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esac
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done
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# --- locate emscripten -------------------------------------------------------
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if [ -n "${EMSDK_DIR:-}" ]; then
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if [ ! -f "$EMSDK_DIR/emsdk_env.sh" ]; then
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echo "Error: EMSDK_DIR is set to '$EMSDK_DIR' but emsdk_env.sh was not found there." >&2
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exit 1
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fi
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# shellcheck source=/dev/null
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source "$EMSDK_DIR/emsdk_env.sh"
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else
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if ! command -v emcc &>/dev/null; then
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echo "Error: emcc not found on PATH and EMSDK_DIR is not set." >&2
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echo " Either source emsdk_env.sh before running this script," >&2
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echo " or set EMSDK_DIR to your emsdk checkout directory." >&2
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exit 1
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fi
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fi
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echo "Using emcc: $(command -v emcc)"
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emcc --version | head -1
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# --- portability helpers -----------------------------------------------------
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# CPU count: Linux has nproc, macOS has sysctl, fall back to getconf.
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ncpu() {
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if command -v nproc &>/dev/null; then
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nproc
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elif [ "$(uname)" = "Darwin" ]; then
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sysctl -n hw.ncpu
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else
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getconf _NPROCESSORS_ONLN 2>/dev/null || echo 1
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fi
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}
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# Portable in-place sed (BSD sed on macOS disagrees with GNU on -i).
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# Uses redirect-back instead of mv so the file's mode bits are preserved
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# (configure must stay executable across build.sh invocations).
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sed_strip_cr() {
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local file=$1 tmp
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tmp=$(mktemp)
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sed 's/\r//' "$file" > "$tmp" && cat "$tmp" > "$file" && rm "$tmp"
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}
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if [ $OPT_RELEASE -eq 1 ]; then
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EXTRA_CFLAGS=" -O2"
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else
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EXTRA_CFLAGS=" -g"
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fi
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# --- TCL fork: locate, pin, prebuild (TCL variant only) ---------------------
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# Reads npm/tcl.ref to get the upstream URL + commit SHA. If the TCL source
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# tree does not exist yet, clone it (with autocrlf=false to keep configure
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# parseable on Windows hosts). If it does exist, just check out the pinned
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# ref — no auto-fetch, so releases stay reproducible.
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#
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# The TCL source tree is treated as read-only. The actual WASM build runs in
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# $TCL_BUILD_DIR (inside magic), driven by
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# toolchains/emscripten/build-tcl-wasm.sh.
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ensure_tcl_built() {
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local TCL_REF_FILE="$SCRIPT_DIR/tcl.ref"
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if [ -f "$TCL_REF_FILE" ]; then
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# shellcheck source=/dev/null
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. "$TCL_REF_FILE"
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fi
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: "${TCL_REPO_URL:=https://github.com/tcltk/tcl.git}"
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: "${TCL_REF:=main}"
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if [ ! -d "$TCL_REPO/.git" ]; then
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echo "=== cloning $TCL_REPO_URL into $TCL_REPO ==="
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git -c core.autocrlf=false clone "$TCL_REPO_URL" "$TCL_REPO"
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fi
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( cd "$TCL_REPO"
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current_sha=$(git rev-parse HEAD 2>/dev/null || echo "")
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if [ "$current_sha" != "$TCL_REF" ]; then
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git fetch --quiet origin
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git checkout --quiet --detach "$TCL_REF"
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fi
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echo "Using TCL at $(git rev-parse HEAD) ($TCL_REPO_URL)"
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)
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# Build TCL for WASM if it hasn't been built yet. The presence of
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# tclConfig.sh in the install prefix is the canonical "TCL is built" marker.
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if [ ! -f "$TCL_WASM_PREFIX/lib/tclConfig.sh" ]; then
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echo "=== building TCL for WASM into $TCL_BUILD_DIR (one-time) ==="
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bash "$REPO_ROOT/toolchains/emscripten/build-tcl-wasm.sh" \
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--src="$TCL_REPO" --out="$TCL_BUILD_DIR"
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fi
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}
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# --- build a single variant --------------------------------------------------
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# Each variant gets a fresh configure run because the two configurations
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# select different code paths (MAGIC_WRAPPER on/off, MAGIC_NO_TK, link flags),
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# so the object cache from one variant is not compatible with the other.
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build_variant() {
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local variant=$1
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local out_dir="$SCRIPT_DIR/$variant"
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echo
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echo "==============================================================="
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echo "=== building variant: $variant"
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echo "==============================================================="
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cd "$REPO_ROOT"
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# Full clean — distclean removes the generated defs.mak and module objects.
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if [ -f defs.mak ]; then
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emmake make distclean || true
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fi
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rm -f defs.mak database/database.h
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# Strip Windows CRLF line endings (no-op on Linux-native files).
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sed_strip_cr configure
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find scripts/ -type f -print0 | while IFS= read -r -d '' f; do sed_strip_cr "$f"; done
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if [ "$variant" = "tcl" ]; then
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ensure_tcl_built
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CFLAGS="--std=c17 -D_DEFAULT_SOURCE=1 -DEMSCRIPTEN=1${EXTRA_CFLAGS}" \
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emconfigure ./configure \
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--without-cairo --without-opengl --without-x --without-tk \
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--with-tcl="$TCL_WASM_PREFIX/lib" \
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--with-tclincls="$TCL_WASM_PREFIX/include" \
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--with-tcllibs="$TCL_WASM_PREFIX/lib" \
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--disable-readline --disable-compression \
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--host=asmjs-unknown-emscripten \
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--target=asmjs-unknown-emscripten
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else
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CFLAGS="--std=c17 -D_DEFAULT_SOURCE=1 -DEMSCRIPTEN=1${EXTRA_CFLAGS}" \
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emconfigure ./configure \
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--without-cairo --without-opengl --without-x \
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--without-tk --without-tcl \
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--disable-readline --disable-compression \
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--host=asmjs-unknown-emscripten \
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--target=asmjs-unknown-emscripten
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fi
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cat toolchains/emscripten/defs.mak >> defs.mak
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emmake make depend
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emmake make -j"$(ncpu)" modules libs
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emmake make techs
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emmake make mains
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mkdir -p "$out_dir"
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cp magic/magic.js "$out_dir/"
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cp magic/magic.wasm "$out_dir/"
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echo "Copied magic.js + magic.wasm into npm/$variant/"
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}
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case "$OPT_VARIANT" in
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tcl|notcl) build_variant "$OPT_VARIANT" ;;
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both) build_variant notcl
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build_variant tcl ;;
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esac
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# --- optional test -----------------------------------------------------------
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# Runs the same smoke test that CI runs (see .github/workflows/main-wasm.yml).
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if [ $OPT_TEST -eq 1 ]; then
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cd "$SCRIPT_DIR"
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npm run test
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npm run test:tcl
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fi
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# --- optional pack -----------------------------------------------------------
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if [ $OPT_PACK -eq 1 ]; then
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"$SCRIPT_DIR/pack.sh"
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echo "npm package tarball created in npm/"
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fi
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