Fix release pipeline (#851)

**Issue:**
The most recent release failed for 2 different reasons:
1) Many cross-compilation jobs failed, they all [use builder like this](https://github.com/awslabs/aws-crt-java/blob/ff164f25866afbcea64d61226904eb2ab420b348/codebuild/cd/generic-unix-build.sh#L31-L33)
    - failed while doing: `mv target/cmake-build/aws-crt-java/* target/cmake-build/`
    - error message: "target/cmake-build/deps already present"
2) The `aws-crt-java-manylinux-x64-fips` job failed with error "Could not find Go"

**Description of changes:**
1) Fix 1st issue by doing `mv` on the 1 directory we care about, instead of doing `mv` on a wildcard where lots of stuff we don't care about can collide
2) Fix 2nd issue by installing golang via package manager
    - Previously, it was manually unpacking golang to a folder, and adding a relative path (`.go/go/bin`) to `$PATH` (which is weird usually you add absolute paths). And broke when the new "prebuild aws-lc" logic changed the working directory
3) Other small fixes

CMakeLists.txt

@@ -68,6 +68,9 @@ if (BUILD_DEPS)
             list(APPEND AWSLC_CMAKE_ARGUMENTS -DFIPS=ON)
             list(APPEND AWSLC_CMAKE_ARGUMENTS -DDISABLE_PERL=OFF)
 
+            # Pick up GO_PATH env-var, set by aws-crt-builder when cross-compiling, see:
+            # https://github.com/awslabs/aws-crt-builder/blob/31307c808ed9f2ea1eb16503b25a9b582f886481/builder/imports/golang.py#L84
+            # https://github.com/awslabs/aws-crt-builder/blob/31307c808ed9f2ea1eb16503b25a9b582f886481/builder/actions/cmake.py#L110
             if (DEFINED ENV{GO_PATH})
                 list(APPEND AWSLC_CMAKE_ARGUMENTS -DGO_EXECUTABLE=$ENV{GO_PATH}/go)
                 message(STATUS "Overriding GO_EXECUTABLE to ${GO_EXECUTABLE}")

codebuild/cd/generic-unix-build.sh

@@ -29,10 +29,20 @@ chmod a+x builder
 GIT_TAG=$(git describe --tags)
 
 ./builder build -p aws-crt-java --target=$AWS_CRT_TARGET run_tests=false
-# Builder corss-compiles the shared lib to `target/cmake-build/aws-crt-java/`, move it to the expected path for mvn to generate the jar.
-mv target/cmake-build/aws-crt-java/* target/cmake-build/
+
+# When cross-compiling with builder, the shared lib gets an extra "/aws-crt-java/" in its path.
+# Move it to expected location.
+if [ -d target/cmake-build/aws-crt-java/lib ]; then
+    mv target/cmake-build/aws-crt-java/lib target/cmake-build/lib
+fi
+
+# Double check that shared lib is where we expect
+if ! find target/cmake-build/lib -type f -name "*.so" | grep -q .; then
+  echo "No .so files found"
+  exit 1
+fi
 
 JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64 mvn -B package -DskipTests -Dshared-lib.skip=true -Dcrt.classifier=$CLASSIFIER
 
-aws s3 cp --recursive --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/lib
+aws s3 cp --recursive --exclude "*" --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/lib
 aws s3 cp target/ s3://aws-crt-java-pipeline/${GIT_TAG}/jar/ --recursive --exclude "*" --include "aws-crt*.jar"

codebuild/cd/linux-aarch64-fips-build.sh

@@ -18,8 +18,19 @@ chmod a+x builder
 GIT_TAG=$(git describe --tags)
 
 ./builder build -p aws-crt-java run_tests=false --target=linux-arm64 --cmake-extra=-DCRT_FIPS=ON
-mv target/cmake-build/aws-crt-java/* target/cmake-build/
+
+# When cross-compiling with builder, the shared lib gets an extra "/aws-crt-java/" in its path.
+# Move it to expected location.
+if [ -d target/cmake-build/aws-crt-java/lib ]; then
+    mv target/cmake-build/aws-crt-java/lib target/cmake-build/lib
+fi
+
+# Double check that shared lib is where we expect
+if ! find target/cmake-build/lib -type f -name "*.so" | grep -q .; then
+  echo "No .so files found"
+  exit 1
+fi
 
 JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64 mvn -B package -DskipTests -Dshared-lib.skip=true -Dcrt.classifier=linux-aarch_64-fips
 
-aws s3 cp --recursive --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/fips_lib
+aws s3 cp --recursive --exclude "*" --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/fips_lib

codebuild/cd/manylinux-x64-fips-build.yml

@@ -11,9 +11,8 @@ phases:
       - git submodule update --init
       # double check aws-lc is the FIPS approved branch.
       - bash ./codebuild/cd/test-fips-branch.sh
-      - curl -OL https://go.dev/dl/go1.21.6.linux-amd64.tar.gz && mkdir ./go
-      - tar -C ./go -xvf go1.21.6.linux-amd64.tar.gz
-      - export PATH=$PATH:./go/go/bin
+      # aws-lc FIPS build requires golang for codegen
+      - yum install -y golang
       - mvn -B package -DskipTests -Dcrt.classifier=linux-x86_64-fips -Dcmake.crt_fips=ON
 
   post_build:

codebuild/cd/musl-linux-build.sh

@@ -23,5 +23,11 @@ docker container prune -f
 # Upload the artifacts to S3
 export GIT_TAG=$(git describe --tags)
 
-aws s3 cp --recursive --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/lib
+# Double check that shared lib is where we expect
+if ! find target/cmake-build/lib -type f -name "*.so" | grep -q .; then
+  echo "No .so files found"
+  exit 1
+fi
+
+aws s3 cp --recursive --exclude "*" --include "*.so" target/cmake-build/lib s3://aws-crt-java-pipeline/${GIT_TAG}/lib
 aws s3 cp target/ s3://aws-crt-java-pipeline/${GIT_TAG}/jar/ --recursive --exclude "*" --include "aws-crt*.jar"