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fix(build-fast): avoid concurrent tmp-bin races

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This commit is contained in:
James Peter
2025-12-12 16:50:51 +10:00
parent ad68deabc6
commit e3ae904421
1 changed files with 4 additions and 1 deletions
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build-fast.sh
+4 -1
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@@ -743,7 +743,10 @@ if [ $? -eq 0 ]; then
for BIN_NAME in "${TARGET_BINS[@]}"; do
BIN_TARGET_PATH="${TARGET_DIR_ABS}/${BIN_SUBDIR}/${BIN_NAME}"
if [ -e "${BIN_TARGET_PATH}" ]; then
TMP_BIN_PATH="${BIN_DIR}/${BIN_NAME}.tmp"
# Use a per-process temp file to avoid races when multiple build-fast
# invocations run concurrently in the same repo.
TMP_BIN_PATH="${BIN_DIR}/${BIN_NAME}.tmp.${BASHPID:-$$}"
rm -f "${TMP_BIN_PATH}" 2>/dev/null || true
cp -f "${BIN_TARGET_PATH}" "${TMP_BIN_PATH}"
mv -f "${TMP_BIN_PATH}" "${BIN_DIR}/${BIN_NAME}"
chmod +x "${BIN_DIR}/${BIN_NAME}" 2>/dev/null || true