Modify toolkit's build_go_vendor_cache.sh script to be used for most go packages (#12217)

Author: mbykhovtsev-ms

toolkit/scripts/build_go_vendor_cache.sh

@@ -2,8 +2,92 @@
 # Copyright (c) Microsoft Corporation.
 # Licensed under the MIT License.
 
+# Quit on failure
 set -e
 
+PKG_VERSION=""
+SRC_TARBALL=""
+OUT_FOLDER="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+# parameters:
+#
+# --srcTarball    : src tarball file
+#                   this file contains the 'initial' source code of the component
+#                   and should be replaced with the new/modified src code
+# --outFolder     : folder where to copy the new tarball(s)
+# --pkgVersion    : package version
+# --vendorVersion : vendor version
+#
+PARAMS=""
+while (( "$#" )); do
+    case "$1" in
+        --srcTarball)
+        if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
+            SRC_TARBALL=$2
+            shift 2
+        else
+            echo "Error: Argument for $1 is missing" >&2
+            exit 1
+        fi
+        ;;
+        --outFolder)
+        if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
+            OUT_FOLDER=$2
+            shift 2
+        else
+            echo "Error: Argument for $1 is missing" >&2
+            exit 1
+        fi
+        ;;
+        --pkgVersion)
+        if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
+            PKG_VERSION=$2
+            shift 2
+        else
+            echo "Error: Argument for $1 is missing" >&2
+            exit 1
+        fi
+        ;;
+        --vendorVersion)
+        if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
+            VENDOR_VERSION=$2
+            shift 2
+        else
+            echo "Error: Argument for $1 is missing" >&2
+            exit 1
+        fi
+        ;;
+        -*|--*=) # unsupported flags
+        echo "Error: Unsupported flag $1" >&2
+        exit 1
+        ;;
+        *) # preserve positional arguments
+        PARAMS="$PARAMS $1"
+        shift
+        ;;
+  esac
+done
+
+if [ -z "$SRC_TARBALL" ]; then
+    echo "--srcTarball parameter cannot be empty"
+    exit 1
+fi
+
+if [ -z "$PKG_VERSION" ]; then
+    echo "--pkgVersion parameter cannot be empty"
+    exit 1
+fi
+
+if [ -z "$VENDOR_VERSION" ]; then
+    echo "--vendorVersion parameter cannot be empty"
+    exit 1
+fi
+
+echo "--srcTarball      -> $SRC_TARBALL"
+echo "--outFolder       -> $OUT_FOLDER"
+echo "--pkgVersion      -> $PKG_VERSION"
+echo "--vendorVersion   -> $VENDOR_VERSION"
+
 temp_dir=$(mktemp -d)
 echo "Working in temporary directory '$temp_dir'."
 function clean-up {
@@ -12,26 +96,19 @@ function clean-up {
 }
 trap clean-up EXIT
 
-tarball_name=$1
+tarball_name=$(basename "$SRC_TARBALL")
 
 cache_name=${tarball_name%.*}
 if [[ "$cache_name" =~ \.tar$ ]]
 then
     cache_name=${cache_name%.*}
 fi
 
-cache_tarball_name="$cache_name-vendor.tar.gz"
-
-if [[ $# -ge 2 ]]
-then
-    directory_name=$2
-else
-    directory_name=$cache_name
-fi
+cache_tarball_name="$cache_name-$PKG_VERSION-govendor-v$VENDOR_VERSION.tar.gz"
 
 if [[ -f "$tarball_name" ]]
 then
-    cp "$tarball_name" "$temp_dir"
+    cp "$SRC_TARBALL" "$temp_dir"
 else
     echo "Tarball '$tarball_name' doesn't exist. Will attempt to download from blobstorage."
     if ! wget -q "https://azurelinuxsrcstorage.blob.core.windows.net/sources/core/$tarball_name" -O "$temp_dir/$tarball_name"
@@ -44,18 +121,28 @@ fi
 
 pushd "$temp_dir" &> /dev/null
     echo "Extracting $tarball_name."
+
     tar -xf "$tarball_name"
-    
+
+    directory_name=($(ls -d */))
+
+    # assume there is only one directory in the tarball
+    directory_name=${directory_name[0]%//}
+
     pushd "$directory_name" &> /dev/null
-        echo "Fetching dependencies to a temporary cache."
+        echo "Fetching dependencies to a temporary cache in $directory_name."
         go mod vendor
 
         echo "Compressing the cache."
-        tar --sort=name --mtime="2021-04-26 00:00Z" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime -cf "$cache_tarball_name" vendor
+        tar  --sort=name \
+            --mtime="2021-04-26 00:00Z" \
+            --owner=0 --group=0 --numeric-owner \
+            --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime \
+            -czf "$cache_tarball_name" vendor
     popd &> /dev/null
 popd &> /dev/null
 
-mv "$temp_dir/$directory_name/$cache_tarball_name" .
+mv "$temp_dir/$directory_name/$cache_tarball_name" "$OUT_FOLDER"
 
 echo "Done:"
-sha256sum "$cache_tarball_name"
+sha256sum "$OUT_FOLDER"/"$cache_tarball_name"