Simple environment manager for use in WAL-E development.

wal-e-env

#!/bin/bash

if [ -z $WALE_ENV_DIR ]
then
    WALE_ENV_DIR='/etc/wal-e/env'
fi

STORE=$(echo $1 | tr '[:upper:]' '[:lower:]')
USTORE=$(echo $STORE | tr '[:lower:]' '[:upper:]')
BOX=$(echo $2 | tr '[:upper:]' '[:lower:]')

print_environment() {
    for file in $(find $WALE_ENV_DIR -type l)
    do
        echo $file
        if [[ $file =~ "PREFIX" ]]
        then
            echo "Current WAL-E Prefix: $(cat $file)"
        fi
    done
}

unlink_env() {
    echo "Cleaning previous environment configuration..."
    find $WALE_ENV_DIR -type l -exec rm -i {} +
}

make_link() {
    source=$1
    destination=$2
    root=$(dirname $WALE_ENV_DIR)

    ln -s $root/$source $WALE_ENV_DIR/$destination
}

case $USTORE in
    AWS)
        access_id_file=AWS_ACCESS_KEY_ID
        secret_file=AWS_SECRET_ACCESS_KEY
        prefix_link_name=WALE_S3_PREFIX
        testing_link_name=WALE_S3_INTEGRATION_TESTS
        ;;
    WABS)
        access_id_file=WABS_ACCESS_KEY
        secret_file=WABS_ACCOUNT_NAME
        prefix_link_name=WALE_WABS_PREFIX
        testing_link_name=WALE_WABS_INTEGRATION_TESTS
        ;;
    SHOW)
        print_environment
        exit 0
        ;;
    *)
        echo "Unknown storage backend: ${USTORE}"
        exit 1
esac

# Unlink previously existing environment
unlink_env

# Link requested environment
echo "Linking requested WAL-E environment..."
make_link $access_id_file $access_id_file
make_link $secret_file $secret_file
if [[ "$BOX" == "TESTING" ]]
then
    make_link TESTING_FILE $testing_link_name
else
    make_link "${BOX}-${STORE}" $prefix_link_name
fi
echo "Eeeeeevaaa"

WAL-E is a project to help simplify PostgreSQL WAL file archiving and recovery.