Initial commit: add .gitignore and README

.common.sh

@@ -0,0 +1,75 @@
+#!/bin/sh
+
+me=`basename "$0"`
+
+if [ "$me" = ".common.sh" ];then
+  echo >&2 "This script is not expected to be run separately."
+  exit 1
+fi
+
+bold=$(tput bold)
+normal=$(tput sgr0)
+
+hash docker 2>/dev/null || {
+  echo >&2 "This script requires Docker but it's not installed."
+  echo >&2 "Refer to documentation to fulfill requirements."
+  exit 1
+}
+
+docker compose version &>/dev/null
+if [ "$?" -eq "1" ];then
+  echo >&2 "This script requires Docker compose but it's not installed."
+  echo >&2 "Refer to documentation to fulfill requirements."
+  exit 1
+fi
+
+docker info &>/dev/null
+if [ "$?" -eq "1" ];then
+  echo >&2 "This script requires Docker daemon to run. Start Docker and try again."
+  echo >&2 "Refer to documentation to fulfill requirements."
+  exit 1
+fi
+
+# We use "SI" measures here because the measurement in the UI and actual bytes
+# do not align exactly
+PRIVACY_MINIMUM=$(( 6 * 1000 * 1000 * 1000 ))
+NORMAL_MINIMUM=$(( 4 * 1000 * 1000 * 1000 ))
+dockermem=$(docker info --format '{{.MemTotal}}')
+
+case "$me" in
+  *privacy* )
+    if [ $dockermem -lt $PRIVACY_MINIMUM ]; then
+      echo >&2 "This script requires that docker has at least 6GB of memory available.";
+      echo >&2 "Refer to documentation to fulfill requirements."
+      exit 1
+    fi;
+    ;;
+  * )
+    if [ $dockermem -lt $NORMAL_MINIMUM ]; then
+      echo >&2 "This script requires that docker has at least 4GB of memory available."
+      echo >&2 "Refer to documentation to fulfill requirements."
+      exit 1
+    fi
+    ;;
+esac
+
+if [ "${NO_LOCK_REQUIRED}" = "true" ];then
+  if [ -f ${LOCK_FILE} ];then
+    echo "Network already in use (${LOCK_FILE} present)." >&2
+    echo "Restart with ./resume.sh or remove with ./remove.sh before running again." >&2
+    exit 1
+  fi
+else
+  composeFile=""
+  if [ -f ${LOCK_FILE} ]; then
+    #read the first line of the lock file and store the value as it's the compose file option
+    composeFile=`sed '1q;d' ${LOCK_FILE}`
+  else
+    echo "Network is not running (${LOCK_FILE} not present)." >&2
+    echo "Run it with ./run.sh first" >&2
+    exit 1
+  fi
+fi
+
+current_dir=${PWD##*/}
+