nexus-export

#!/bin/bash

function usage()
{
    echo "Export Nexus Repositories."
    echo ""
    echo "./nexus-export"
    echo -e "\t--help"

    echo -e "\t--localNexusUrl"
    echo -e "\t--localNexusUser"
    echo -e "\t--localNexusPwd"

    echo -e "\t--targetNexusUrl"
    echo -e "\t--targetNexusUser"
    echo -e "\t--targetNexusPwd"

    echo -e "\t--localBlobsDir"
    echo -e "\t--ignoreRepositories"
    echo ""
}

TARGET_NEXUS_URL=""
TARGET_NEXUS_USER=""
TARGET_NEXUS_PWD=""
LOCAL_BLOBS_DIR=""
LOCAL_NEXUS_URL=""
LOCAL_NEXUS_USER=""
LOCAL_NEXUS_PWD=""

IGNORED_REPOSITORIES=()
IGNORED_SUFFIXES=()
TEMP_DIR="/tmp"
while [[ $# -gt 0 ]]
do
    key="$1"

    case $key in
        --help)
        usage
        exit
        ;;

        --targetNexusUrl)
        TARGET_NEXUS_URL="$2"
        shift
        shift
        ;;

	--targetNexusUser)
        TARGET_NEXUS_USER="$2"
        shift
	shift
	;;

	--targetNexusPwd)
        TARGET_NEXUS_PWD="$2"
        shift
	shift
	;;

	--localBlobsDir)
        LOCAL_BLOBS_DIR="$2"
        shift
	shift
	;;

        --localNexusUrl)
        LOCAL_NEXUS_URL="$2"
        shift
        shift
        ;;

        --localNexusUser)
        LOCAL_NEXUS_USER="$2"
        shift
	shift
	;;

        --localNexusPwd)
        LOCAL_NEXUS_PWD="$2"
        shift
	shift
	;;

       	--ignoreRepositories)
       	IFS=, read -r -a IGNORE_REPOSITORIES <<< "$2"
       	shift
       	shift
       	;;

        *)
        usage
        exit
        ;;
    esac
done


function findValueInPropertyFile {
	while IFS='=' read -r key value
	do
		if [[ "${key}" == $2 ]]; then
			echo  "${value}"
			return
		fi
	done < "$1"

	echo ""
	return
}


function trim(){
	echo $@
}

function containsElement () {
	local e match="$1"
	shift
	for e; do [[ "$e" == "$match" ]] && return 0; done
	return 1
}

function isIgnoredSuffix() {
  for e in "${IGNORED_SUFFIXES[@]}"; do [[ $1 == *$e ]] && return 0; done
  return 1
}

rm $TEMP_DIR/nexus-* &> /dev/null

success=true
for file in $(find $LOCAL_BLOBS_DIR -type f  -name "*.properties"); do
	repoName=$(findValueInPropertyFile $file "@Bucket.repo-name")
	repoName=$(trim $repoName)

	blobName=$(findValueInPropertyFile $file "@BlobStore.blob-name")
	blobName=$(trim $blobName)

	if [[ ! -z "$repoName" && ! -z "$blobName" ]]; then
		if containsElement "$repoName" "${IGNORE_REPOSITORIES[@]}" || isIgnoredSuffix "$blobName"; then
			echo "$repoName $blobName" >> "$TEMP_DIR/nexus-not-exported.txt"
		else
			echo "Migrating $repoName $blobName"

			echo "$repoName $blobName" >> "$TEMP_DIR/nexus-exported.txt"
			curl -s -o "$TEMP_DIR/nexus-temp-file" -u "$LOCAL_NEXUS_USER:$LOCAL_NEXUS_PWD" "$LOCAL_NEXUS_URL/repository/$repoName/$blobName"

			if [ $? -ne 0 ]; then
				success=false
				echo "Error while downloading $repoName/$blobName" >> "$TEMP_DIR/nexus-failures.txt"
			fi

			curl -s -u "$TARGET_NEXUS_USER:$TARGET_NEXUS_PWD" --upload-file "$TEMP_DIR/nexus-temp-file" "$TARGET_NEXUS_URL/repository/$repoName/$blobName"

                       	if [ $? -ne 0 ]; then
				success=false
                                echo "Error while uploading $repoName/$blobName" >> "$TEMP_DIR/nexus-failures.txt"
                       	fi
		fi
	fi
done

if $success; then
	exit 0
else
	exit 1
fi

if Iam write it will merge (I tested on an empty target)

I created an npm package for this script (and gave you credit of course)

(repo)

Iam happy that it helped you ;)