Add ledgerbil command helper

.env

@@ -2,7 +2,8 @@
 CONFIG_DIR=config
 
 # The parent folder containing your ledger files.
-LEDGER_DIR=data
+# This must be an absolute path.
+LEDGER_DIR=/home/my-username/metaledger/data
 
 # The name of your primary ledger file (within the LEDGER_DIR).
 PRIMARY_LEDGER_FILE=all.ledger

bin/ledgerbil

@@ -1,3 +1,23 @@
 #!/bin/bash
 
-echo TODO
+# https://github.com/scarpent/ledgerbil
+
+SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+REPOPATH="$(dirname ${SCRIPTPATH})"
+
+source ${REPOPATH}/.env
+
+if ! docker image inspect "ledgerbil:latest" >/dev/null 2>&1; then
+    echo "Ledgerbil image not found. Building..."
+    git submodule update --init
+    pushd ledgerbil
+    docker build -t ledgerbil:latest .
+    popd
+fi
+
+docker run --rm -it \
+    -v "${LEDGER_DIR}:/data" \
+    -v "${REPOPATH}/ledgerbil-settings.py:/code/ledgerbil/settings.py" \
+    --entrypoint python \
+    ledgerbil:latest \
+    /code/main.py -f /data/${PRIMARY_LEDGER_FILE} ${@}