From 9209a41f8294f6da8556266f3cacb83e5ad03e75 Mon Sep 17 00:00:00 2001
From: Feng Xiao <xfxyjwf@gmail.com>
Date: Sun, 15 Jul 2018 18:16:40 -0700
Subject: Add protoc release script for Linux build.

---
 kokoro/release/protoc/linux/build.sh    | 30 ++++++++++++++++++++++++++++++
 kokoro/release/protoc/linux/release.cfg |  7 +++++++
 protoc-artifacts/build-protoc.sh        |  4 ++--
 3 files changed, 39 insertions(+), 2 deletions(-)
 create mode 100755 kokoro/release/protoc/linux/build.sh
 create mode 100644 kokoro/release/protoc/linux/release.cfg

diff --git a/kokoro/release/protoc/linux/build.sh b/kokoro/release/protoc/linux/build.sh
new file mode 100755
index 00000000..0b6d55b1
--- /dev/null
+++ b/kokoro/release/protoc/linux/build.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -x
+
+# Change to repo root.
+cd $(dirname $0)/../../../..
+
+# Use docker image to build linux artifacts.
+DOCKER_IMAGE_NAME=protobuf/protoc_$(sha1sum protoc-artifacts/Dockerfile | cut -f1 -d " ")
+docker pull $DOCKER_IMAGE_NAME
+
+docker run -v $(pwd):/var/local/protobuf --rm $DOCKER_IMAGE_NAME \
+    bash -l /var/local/protobuf/protoc-artifacts/build-protoc.sh \
+    linux x86_64 protoc || {
+  echo "Failed to build protoc for linux + x86_64."
+  exit 1
+}
+
+docker run -v $(pwd):/var/local/protobuf --rm $DOCKER_IMAGE_NAME \
+    bash -l /var/local/protobuf/protoc-artifacts/build-protoc.sh \
+    linux x86_32 protoc || {
+  echo "Failed to build protoc for linux + x86_32."
+  exit 1
+}
+
+# Cross-build for some architectures.
+sudo apt install g++-aarch64-linux-gnu
+# TODO(xiaofeng): It currently fails with "machine `aarch64' not recognized"
+# error.
+# protoc-artifacts/build-protoc.sh linux aarch_64 protoc
diff --git a/kokoro/release/protoc/linux/release.cfg b/kokoro/release/protoc/linux/release.cfg
new file mode 100644
index 00000000..4d8b7b61
--- /dev/null
+++ b/kokoro/release/protoc/linux/release.cfg
@@ -0,0 +1,7 @@
+build_file: "protobuf/kokoro/release/protoc/linux/build.sh"
+
+action {
+  define_artifacts {
+    regex: "**/protoc.exe"
+  }
+}
diff --git a/protoc-artifacts/build-protoc.sh b/protoc-artifacts/build-protoc.sh
index 076e6b48..7e1d4a89 100755
--- a/protoc-artifacts/build-protoc.sh
+++ b/protoc-artifacts/build-protoc.sh
@@ -38,7 +38,7 @@ case $MAKE_TARGET in
   protoc)
     ;;
   *)
-    echo "Target ""$TARGET"" invalid."
+    echo "Target ""$MAKE_TARGET"" invalid."
     exit 1
 esac
 
@@ -174,7 +174,7 @@ checkDependencies ()
 }
 ############################################################################
 
-echo "Building protoc, OS=$OS ARCH=$ARCH TARGET=$TARGET"
+echo "Building protoc, OS=$OS ARCH=$ARCH TARGET=$MAKE_TARGET"
 
 CONFIGURE_ARGS="--disable-shared"
 
-- 
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