Add a trac_dump helper to extract required data

Signed-off-by: Benoit Donneaux <benoit@leastauthority.com>

docker-compose.yml

@@ -17,6 +17,7 @@ services:
       - ./trac/trac.htdigest:/home/trac/trac.htdigest
       - ./trac/repos:/home/source/git
       - ./trac/backup:/var/lib/appdata/backup
+      - ./helpers:/var/lib/appdata/helpers
     working_dir: /var/lib/appdata
     stdin_open: true
     tty: true

docker/trac/Dockerfile

@@ -12,7 +12,7 @@ ENV DEBIAN_FRONTEND="noninteractive"
 # Application level requirements #
 ##################################
 # Install required packages
-RUN INSTALL_PKGS="git gcc libssl-dev" && \
+RUN INSTALL_PKGS="git gcc libssl-dev sqlite3" && \
     apt-get -q clean && \
     apt-get -q update && \
     apt-get install -y $INSTALL_PKGS && \

helpers/trac_dump.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+# Configure bash behavior
+set -o errexit  # exit on failed command
+set -o nounset  # exit on undeclared variables
+set -o pipefail # exit on any failed command in pipes
+
+# Verbosity settings
+: ${VERBOSE=1}
+SH=("/usr/bin/env" "bash")
+if [ ${VERBOSE} -ge 2 ]; then
+  SH=("${SH[@]}" "-x")
+  set -o xtrace
+fi
+
+# Set magic variables for current file & dir
+__DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+__FILE="${__DIR}/$(basename "${BASH_SOURCE[0]}")"
+__BASE="$(basename ${__FILE} .sh)"
+__ROOT="$(cd "$(dirname "${__DIR}")" && pwd)"
+__CWD="$(pwd)"
+
+# Parse the arguments
+TRAC_DIR=${1?Path to trac directory is missing as first argument!}
+DUMP_DIR=${2?Path to dump directory is missing as second argument!}
+shift
+shift
+
+trac-admin "${TRAC_DIR}" hotcopy "${DUMP_DIR}"
+
+echo "Purging sessions ..."
+trac-admin "${DUMP_DIR}" session purge "0 days ago"
+echo "Purge sessions done"
+
+echo "Vacuuming the DB ..."
+sqlite3 "${DUMP_DIR}/db/trac.db" 'VACUUM;'
+echo "Vaccum done"
+
+echo "Purging logs ..."
+rm -f "${DUMP_DIR}/log/*"
+echo "Purge log done"
+
+echo "Dumping additional files ..."
+for SRC in "${@}"; do
+  echo "  ${SRC} ..."
+  cp -a "${SRC}" "${DUMP_DIR}"
+done
+echo "Dump additional files done"