Add Bazel v0.27.1 package (required by TF v2.1.0).

package/.cm/alias-a-tool-bazel-0.27.1-linux

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+a06a0394f188f5c3

package/.cm/alias-u-a06a0394f188f5c3

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+tool-bazel-0.27.1-linux

package/tool-bazel-0.27.1-linux/.cm/desc.json

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+{}

package/tool-bazel-0.27.1-linux/.cm/info.json

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+{
+  "backup_data_uid": "a06a0394f188f5c3", 
+  "backup_module_uid": "1dc07ee0f4742028", 
+  "backup_module_uoa": "package", 
+  "control": {
+    "engine": "CK", 
+    "iso_datetime": "2020-04-03T11:58:47.715112", 
+    "version": [
+      "1", 
+      "12", 
+      "2"
+    ]
+  }, 
+  "data_name": "tool-bazel-0.27.1-linux"
+}

package/tool-bazel-0.27.1-linux/.cm/meta.json

@@ -0,0 +1,38 @@
+{
+  "customize": {
+    "extra_dir": "", 
+    "git_src_dir": "src", 
+    "install_env": {
+      "BAZEL_PATCH1": "javac-max-heap-500mb.patch", 
+      "BAZEL_PATCH2": "non-64bit-unix-warning.patch", 
+      "BAZEL_URL": "https://github.com/bazelbuild/bazel/releases/download/0.27.1/bazel-0.27.1-dist.zip", 
+      "BAZEL_ZIP": "bazel-0.27.1-dist.zip"
+    }, 
+    "use_git_revision": "no", 
+    "version": "0.27.1"
+  }, 
+  "deps": {}, 
+  "end_full_path": {
+    "linux": "install/bin/bazel"
+  }, 
+  "need_cpu_info": "yes", 
+  "only_for_host_os_tags": [
+    "linux"
+  ], 
+  "only_for_target_os_tags": [
+    "linux"
+  ], 
+  "process_script": "install", 
+  "soft_uoa": "359f7730bd23ec60", 
+  "suggested_path": "tool-bazel", 
+  "tags": [
+    "tool", 
+    "bazel", 
+    "v0.27.1", 
+    "v0.27", 
+    "v0", 
+    "channel-stable"
+  ], 
+  "template": "yes", 
+  "template_type": "Bazel"
+}

package/tool-bazel-0.27.1-linux/README

@@ -0,0 +1,3 @@
+Pre-requisites:
+* zip (sudo apt-get install zip)
+* protobuf 3.6.0 or newer (pip install -U protobuf)

package/tool-bazel-0.27.1-linux/install.sh

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+#! /bin/bash
+
+#
+# Installation script for Bazel on (AArch64) Linux platforms.
+#
+# See CK LICENSE.txt for licensing details.
+# See CK COPYRIGHT.txt for copyright details.
+#
+# Developer(s):
+# - Anton Lokhmotov, 2017.
+#
+
+#
+# NB: Implicit dependencies (not yet in metadata):
+# - Java SDK (but detected via soft description?)
+# - C++ compiler
+#
+
+# PACKAGE_DIR
+# INSTALL_DIR
+
+export BAZEL_SRC_DIR=${INSTALL_DIR}/src
+export BAZEL_TMP_DIR=/tmp
+
+################################################################################
+export BAZEL_INSTALL_LOG=${INSTALL_DIR}/ck-install.log
+
+echo
+echo "Logging into '${BAZEL_INSTALL_LOG}' ..."
+
+echo "** DATE **" >> ${BAZEL_INSTALL_LOG}
+date >> ${BAZEL_INSTALL_LOG}
+
+echo "** SET **" >> ${BAZEL_INSTALL_LOG}
+set >> ${BAZEL_INSTALL_LOG}
+
+################################################################################
+echo ""
+echo "Downloading Bazel from '${BAZEL_URL}' ..."
+
+echo "** WGET **" >> ${BAZEL_INSTALL_LOG}
+cd ${BAZEL_TMP_DIR}
+wget ${BAZEL_URL} -O ${BAZEL_ZIP} --no-check-certificate \
+  >> ${BAZEL_INSTALL_LOG} 2>&1
+
+if [ "${?}" != "0" ] ; then
+  echo "Error: Downloading Bazel from '${BAZEL_URL}' failed!"
+  exit 1
+fi
+
+################################################################################
+echo ""
+echo "Unpacking Bazel to '${BAZEL_SRC_DIR}' ..."
+
+echo "** UNZIP **" >> ${BAZEL_INSTALL_LOG}
+rm -rf ${BAZEL_SRC_DIR}
+mkdir ${BAZEL_SRC_DIR}
+unzip ${BAZEL_ZIP} -d ${BAZEL_SRC_DIR} \
+  >> ${BAZEL_INSTALL_LOG} 2>&1
+
+if [ "${?}" != "0" ] ; then
+  echo "Error: Unpacking Bazel to '${BAZEL_SRC_DIR}' failed!"
+  exit 1
+fi
+
+rm ${BAZEL_ZIP}
+
+#################################################################################
+export MACH=$(uname -m)
+
+echo
+echo "Patching Bazel ..."
+
+echo "** PATCH **" >> ${BAZEL_INSTALL_LOG}
+# Apply patch for arm machine to prevent javac running out of heap memory.
+if [ "${HOSTTYPE}"  == "arm" ] ; then
+  echo "Applying patch '${BAZEL_PATCH1}' ..."
+  cd ${BAZEL_SRC_DIR} && patch -p1 < ${PACKAGE_DIR}/${BAZEL_PATCH1} >> ${BAZEL_INSTALL_LOG} 2>&1
+fi
+
+# Apply patch for 32-bit OS to convert error to warning in mapped_file.h.
+if [ ${CK_TARGET_CPU_BITS} == 32 ]; then
+  echo "Applying patch '${BAZEL_PATCH2}' ..."
+  cd ${BAZEL_SRC_DIR} && patch -p1 < ${PACKAGE_DIR}/${BAZEL_PATCH2} >> ${BAZEL_INSTALL_LOG} 2>&1
+fi
+
+if [ "${?}" != "0" ] ; then
+  echo "Error: Patching Bazel failed!"
+  exit 1
+fi
+
+################################################################################
+echo ""
+echo "Compiling Bazel ..."
+
+echo "** COMPILE **" >> ${BAZEL_INSTALL_LOG}
+cd ${BAZEL_SRC_DIR}
+
+if [ "$CK_SHOW_BAZEL_OUTPUT" == "yes" ] || [ "$CK_SHOW_BAZEL_OUTPUT" == "YES" ] ; then
+  ./compile.sh
+else
+  ./compile.sh >> ${BAZEL_INSTALL_LOG} 2>&1
+fi
+
+if [ "${?}" != "0" ] ; then
+  echo "Error: Compiling Bazel failed!"
+  exit 1
+fi
+
+################################################################################
+echo ""
+echo "Installing Bazel ..."
+
+echo "** INSTALL **" >> ${BAZEL_INSTALL_LOG}
+mkdir -p ${INSTALL_DIR}/install
+mkdir -p ${INSTALL_DIR}/install/bin
+cp ${BAZEL_SRC_DIR}/output/bazel ${INSTALL_DIR}/install/bin/ >> ${BAZEL_INSTALL_LOG} 2>&1
+
+if [ "${?}" != "0" ] ; then
+  echo "Error: Installing Bazel failed!"
+  exit 1
+fi
+
+###############################################################################
+echo ""
+echo "Successfully installed Bazel into '${INSTALL_DIR}'."
+echo

package/tool-bazel-0.27.1-linux/javac-max-heap-500mb.patch

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+diff --git a/scripts/bootstrap/compile.sh b/scripts/bootstrap/compile.sh
+index 494c1a1..068f62a 100755
+--- a/scripts/bootstrap/compile.sh
++++ b/scripts/bootstrap/compile.sh
+@@ -121,7 +121,7 @@ function java_compilation() {
+
+   run "${JAVAC}" -classpath "${classpath}" -sourcepath "${sourcepath}" \
+       -d "${output}/classes" -source "$JAVA_VERSION" -target "$JAVA_VERSION" \
+-      -encoding UTF-8 "@${paramfile}"
++      -encoding UTF-8 "@${paramfile}" -J-Xmx500M
+
+   log "Extracting helper classes for $name..."
+   for f in ${library_jars} ; do

package/tool-bazel-0.27.1-linux/non-64bit-unix-warning.patch

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+diff --git a/src/tools/singlejar/mapped_file.h b/src/tools/singlejar/mapped_file.h
+index b6c5e34..7c85b4d 100644
+--- a/src/tools/singlejar/mapped_file.h
++++ b/src/tools/singlejar/mapped_file.h
+@@ -37,7 +37,7 @@
+  */
+ #if !((defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)) && \
+       __SIZEOF_POINTER__ == 8)
+-#error This code for 64 bit Unix.
++#warning This code for 64 bit Unix.
+ #endif
+
+ class MappedFile {