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@adutra
Created October 20, 2011 14:18
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#!/bin/bash
# Argument = -h -v -i groupId:artifactId:version -c classifier -p packaging -r repository
#shopt -o -s xtrace
# Define Nexus Configuration
NEXUS_BASE=http://repository.example.com:8081/nexus
REST_PATH=/service/local
ART_REDIR=/artifact/maven/redirect
usage()
{
cat <<EOF
usage: $0 options
This script will fetch an artifact from a Nexus server using the Nexus REST redirect service.
OPTIONS:
-h Show this message
-v Verbose
-i GAV coordinate groupId:artifactId:version
-c Artifact Classifier
-p Artifact Packaging
EOF
}
# Read in Complete Set of Coordinates from the Command Line
GROUP_ID=
ARTIFACT_ID=
VERSION=
CLASSIFIER=""
PACKAGING=war
REPO=
VERBOSE=0
while getopts "hvi:c:p:" OPTION
do
case $OPTION in
h)
usage
exit 1
;;
i)
OIFS=$IFS
IFS=":"
GAV_COORD=( $OPTARG )
GROUP_ID=${GAV_COORD[0]}
ARTIFACT_ID=${GAV_COORD[1]}
VERSION=${GAV_COORD[2]}
IFS=$OIFS
;;
c)
CLASSIFIER=$OPTARG
;;
p)
PACKAGING=$OPTARG
;;
v)
VERBOSE=1
;;
?)
usage
exit
;;
esac
done
if [[ -z $GROUP_ID ]] || [[ -z $ARTIFACT_ID ]] || [[ -z $VERSION ]]
then
echo "BAD ARGUMENTS: Either groupId, artifactId, or version was not supplied" >&2
usage
exit 1
fi
# Define default values for optional components
# If the version requested is a SNAPSHOT use snapshots, otherwise use releases
if [[ "$VERSION" =~ .*SNAPSHOT ]]
then
: ${REPO:="snapshots"}
else
: ${REPO:="releases"}
fi
# Construct the base URL
REDIRECT_URL=${NEXUS_BASE}${REST_PATH}${ART_REDIR}
# Generate the list of parameters
PARAM_KEYS=( g a v r p c )
PARAM_VALUES=( $GROUP_ID $ARTIFACT_ID $VERSION $REPO $PACKAGING $CLASSIFIER )
PARAMS=""
for index in ${!PARAM_KEYS[*]}
do
if [[ ${PARAM_VALUES[$index]} != "" ]]
then
PARAMS="${PARAMS}${PARAM_KEYS[$index]}=${PARAM_VALUES[$index]}&"
fi
done
REDIRECT_URL="${REDIRECT_URL}?${PARAMS}"
echo "Fetching Artifact from $REDIRECT_URL..." >&2
curl -sS -L ${REDIRECT_URL}
@The-Alchemist
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This is awesome, thanks!

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