# shellcheck shell=bash
# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
# See LICENSE.md for license information.
# SPDX-License-Identifier: MIT
#
# Emscripten 6.0.11 through emsdk: the compiler the web port (make web)
# builds JoeyLib programs to WebAssembly with. emsdk is fetched at the
# release tag's commit and installs that one release of its toolchain
# (clang, binaryen, node) into toolchains/opt/emsdk; nothing reaches the
# user's home directory (EM_CACHE stays inside it too).

compDescription="web: Emscripten 6.0.11 (emsdk)"
compGroups="toolchain:web"
compRequires="host"
compHostDeps="git python3 xz"
compUrl="https://github.com/emscripten-core/emsdk.git"
compCommit="dd8e25632640cfc1fb570c7fa4cc374e8a5e5a72"
emsdkVersion="6.0.11"
compPin="$compCommit:$emsdkVersion"


compInstall() {
    rm -rf "$compDir"
    gitFetchCommit "$compUrl" "$compCommit" "$compDir"
    (cd "$compDir" && ./emsdk install "$emsdkVersion" && ./emsdk activate --embedded "$emsdkVersion")
}


compInstalled() {
    [ -x "$compDir/upstream/emscripten/emcc" ]
}


compVerify() {
    local tmp
    local status=1
    tmp="$(mktemp -d)"
    printf 'int answer(int x) { return x * 42; }\n' > "$tmp/t.c"
    if EM_CONFIG="$compDir/.emscripten" EM_CACHE="$compDir/cache" "$compDir/upstream/emscripten/emcc" -c "$tmp/t.c" -o "$tmp/t.o" && [ -s "$tmp/t.o" ]; then
        status=0
    fi
    rm -rf "$tmp"
    return $status
}


compEnv() {
    envVar EMSDK_DIR "$compDir"
    envVar EMCC "$compDir/upstream/emscripten/emcc"
    envVar EM_CONFIG "$compDir/.emscripten"
    envVar EM_CACHE "$compDir/cache"
}