55 lines
2.5 KiB
Bash
Executable File
55 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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WEB_EMSCRIPTEN_VERSION="3.1.69"
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web_workspace_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
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# Prefer the repository-local SDK prepared by tools/web/prepare-build-env.sh.
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if [[ -x "${web_workspace_root}/.emsdk/upstream/emscripten/emcc" ]]; then
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export EMSDK="${web_workspace_root}/.emsdk"
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export PATH="${EMSDK}/upstream/emscripten:${EMSDK}/node/24.19.0_64bit/bin:${EMSDK}:${PATH}"
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# Override copied-host settings in .emscripten-web with this checkout's SDK.
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export EM_LLVM_ROOT="${EM_LLVM_ROOT-${EMSDK}/upstream/bin}"
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export EM_BINARYEN_ROOT="${EM_BINARYEN_ROOT-${EMSDK}/upstream}"
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export EM_NODE_JS="${EM_NODE_JS-${EMSDK}/node/24.19.0_64bit/bin/node}"
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export EM_LLVM_ADD_VERSION="${EM_LLVM_ADD_VERSION-}"
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export EM_CLANG_ADD_VERSION="${EM_CLANG_ADD_VERSION-}"
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fi
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if command -v emcc >/dev/null 2>&1; then
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detected_version="$(emcc --version | awk '{for (i = 1; i <= NF; i++) if ($i ~ /^[0-9]+\.[0-9]+\.[0-9]+$/) {print $i; exit}}')"
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if [[ "${detected_version}" != "${WEB_EMSCRIPTEN_VERSION}" ]]; then
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echo "Expected Emscripten ${WEB_EMSCRIPTEN_VERSION}, found ${detected_version}" >&2
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exit 1
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fi
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else
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echo "emcc was not found; install or activate emsdk ${WEB_EMSCRIPTEN_VERSION}" >&2
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exit 1
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fi
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export WEB_EMSCRIPTEN_VERSION
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export EM_CONFIG="${web_workspace_root}/.emscripten-web"
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# Prefer RAM-backed compiler caches on Linux hosts with enough tmpfs space.
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# The cache only contains derived Emscripten artifacts; evidence and source
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# outputs remain in the repository. Callers can override either path.
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if [[ -d /dev/shm && -w /dev/shm ]]; then
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web_ram_cache_root="${WEB_RAM_CACHE_ROOT-/dev/shm/blender-wasm-${UID}}"
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mkdir -p "${web_ram_cache_root}/emcache" "${web_ram_cache_root}/tmp"
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export EM_CACHE="${EM_CACHE-${web_ram_cache_root}/emcache}"
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export TMPDIR="${TMPDIR-${web_ram_cache_root}/tmp}"
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else
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export EM_CACHE="${EM_CACHE-${web_workspace_root}/.emcache}"
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fi
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web_build_jobs="$(WEB_BUILD_MEMORY_GIB_PER_JOB=4 WEB_BUILD_JOBS_CAP=16 bash "${web_workspace_root}/tools/web/compute-build-jobs.sh")"
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export WEB_BUILD_JOBS="${WEB_BUILD_JOBS-${web_build_jobs}}"
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export CMAKE_BUILD_PARALLEL_LEVEL="${CMAKE_BUILD_PARALLEL_LEVEL-${WEB_BUILD_JOBS}}"
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export NINJAFLAGS="${NINJAFLAGS--j${WEB_BUILD_JOBS}}"
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export WEB_EMSCRIPTEN_CFLAGS="-sENVIRONMENT=web,worker -sMODULARIZE=1 -sEXPORT_ES6=1"
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export WEB_EMSCRIPTEN_LDFLAGS="-sALLOW_MEMORY_GROWTH=1 -sFILESYSTEM=1"
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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emcc --version | head -3
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node --version
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cmake --version | head -1
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fi
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