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0f9d4e488a
If the `$EMSCRIPTEN_BASE` dir is missing (which usually points to `emsdk/upstream/emscripten`), but we have the `emsdk` root directory with `emsdk/emsdk`, we can have everything we need to install the desired emscripten version. Issue #13464 describes an error where the `upstream/emscripten` directory was missing - probably because the build got interrupted while installing emscripten. This change fixes this. Fixes: #13464
110 lines
4 KiB
Bash
110 lines
4 KiB
Bash
# shellcheck shell=bash
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# Keyman is copyright (C) SIL Global. MIT License.
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# shellcheck disable=SC2154
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. "${KEYMAN_ROOT}/resources/build/minimum-versions.inc.sh"
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#
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# We don't want to rely on emcc being on the path, because Emscripten puts far
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# too many things onto the path (in particular for us, node).
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#
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# The following comment suggests that we don't need emcc on the path.
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# https://github.com/emscripten-core/emscripten/issues/4848#issuecomment-1097357775
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#
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# So we try and locate emcc in common locations ourselves. The search pattern
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# is:
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#
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# 1. Look for $EMSCRIPTEN_BASE (our primary emscripten variable), which should
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# point to the folder that emcc is located in
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# 2. Look for $EMCC which should point to the emcc executable
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# 3. Look for emcc on the path
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#
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locate_emscripten() {
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local EMCC_EXECUTABLE
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if builder_is_windows; then
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EMCC_EXECUTABLE="emcc.py"
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else
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EMCC_EXECUTABLE="emcc"
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fi
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if [[ -z "${EMSCRIPTEN_BASE:-}" ]]; then
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if [[ -z "${EMCC:-}" ]]; then
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local EMCC
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EMCC="$(command -v "${EMCC_EXECUTABLE}")"
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[[ -z "${EMCC}" ]] && builder_die "locate_emscripten: Could not locate emscripten (${EMCC_EXECUTABLE}) on the path or with \$EMCC or \$EMSCRIPTEN_BASE"
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fi
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[[ -f "${EMCC}" && ! -x "${EMCC}" ]] && builder_die "locate_emscripten: Variable EMCC (${EMCC}) points to ${EMCC_EXECUTABLE} but it is not executable"
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[[ -x "${EMCC}" ]] || builder_die "locate_emscripten: Variable EMCC (${EMCC}) does not point to a valid executable ${EMCC_EXECUTABLE}"
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EMSCRIPTEN_BASE="$(dirname "${EMCC}")"
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fi
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[[ -f "${EMSCRIPTEN_BASE}/${EMCC_EXECUTABLE}" && ! -x "${EMSCRIPTEN_BASE}/${EMCC_EXECUTABLE}" ]] && builder_die "locate_emscripten: Variable EMSCRIPTEN_BASE (${EMSCRIPTEN_BASE}) contains ${EMCC_EXECUTABLE} but it is not executable"
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if [[ ! -d "${EMSCRIPTEN_BASE}" ]]; then
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# $EMSCRIPTEN_BASE does not exist, but check if we have emsdk in a parent directory. #13464
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_can_locate_emsdk "${EMSCRIPTEN_BASE}" || builder_die "locate_emscripten: Variable EMSCRIPTEN_BASE (${EMSCRIPTEN_BASE}) points to a non-existent directory"
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else
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[[ -x "${EMSCRIPTEN_BASE}/${EMCC_EXECUTABLE}" ]] || builder_die "locate_emscripten: Variable EMSCRIPTEN_BASE (${EMSCRIPTEN_BASE}) does not point to ${EMCC_EXECUTABLE}'s folder"
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fi
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verify_emscripten_version
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}
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# Ensure that we use correct version of emsdk on build agents.
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# For developers, define KEYMAN_USE_EMSDK to do this on your
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# build machine.
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verify_emscripten_version() {
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# shellcheck disable=SC2154
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if [[ "${KEYMAN_VERSION_ENVIRONMENT}" != local || ! -z "${KEYMAN_USE_EMSDK+x}" ]]; then
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_select_emscripten_version_with_emsdk
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fi
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}
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# Check if the grandparent directory (i.e. emscripten root) contains emsdk
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_can_locate_emsdk() {
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local DIR="$1"
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local GRANDPARENT
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GRANDPARENT="$(dirname "$(dirname "${DIR}")")"
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if [[ -f "${GRANDPARENT}/emsdk" ]]; then
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return 0
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else
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return 1
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fi
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}
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# Use emsdk to select the appropriate version of Emscripten
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# according to minimum-versions.inc.sh
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_select_emscripten_version_with_emsdk() {
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if [[ -z "${EMSCRIPTEN_BASE+x}" ]]; then
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builder_die "Variable EMSCRIPTEN_BASE must be set"
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fi
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if [[ -z "${KEYMAN_MIN_VERSION_EMSCRIPTEN+x}" ]]; then
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builder_die "Variable KEYMAN_MIN_VERSION_EMSCRIPTEN must be set"
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fi
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local GRANDPARENT
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GRANDPARENT="$(dirname "$(dirname "${EMSCRIPTEN_BASE}")")"
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(
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# shellcheck disable=SC2164
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cd "${GRANDPARENT}"
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if [[ ! -f emsdk ]]; then
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builder_die "emsdk[.bat] should be in ${GRANDPARENT}"
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fi
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export EMSDK_KEEP_DOWNLOADS=1
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if builder_try_offline; then
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if [[ ! -f ./emsdk_env.sh ]]; then
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builder_die "emsdk_env.sh not found - emsdk not installed?"
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fi
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. ./emsdk_env.sh
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if ! emcc --version | grep -q "${KEYMAN_MIN_VERSION_EMSCRIPTEN}"; then
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builder_die "Wrong emsdk version installed"
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fi
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else
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git pull
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./emsdk install "${KEYMAN_MIN_VERSION_EMSCRIPTEN}"
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./emsdk activate "${KEYMAN_MIN_VERSION_EMSCRIPTEN}"
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# shellcheck disable=SC2164
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cd upstream/emscripten
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npm install
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fi
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)
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}
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