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https://github.com/fleetdm/fleet
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8dd5df1d06
If this script is added as the `post-checkout` git hook, if the branch you're switching to has different migrations from the one you're coming from, it will automatically dump the current db, and restore the dump from the last time you visited this branch. If no dump exists, it just leaves the DB as-is
61 lines
1.8 KiB
Bash
Executable file
61 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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# This script can be linked or copied to .git/hooks/post-checkout
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# It will automatically dump and restore the db based on the branch
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PREV_HEAD=$1
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CURR_HEAD=$2
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BRANCH_CHEKCOUT=$3
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DUMP_DIR="${HOME}/.fleet/snapshots/checkouts/"
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BACKUP_TOOL="./tools/backup_db/backup.sh"
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RESTORE_TOOL="./tools/backup_db/restore.sh"
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if [ $BRANCH_CHEKCOUT != 1 ]; then
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echo "Not a branch checkout, exiting backup and restore"
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exit 0
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fi
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DIFF_MIGRATION_FILES="$(git diff-tree --name-only --no-commit-id -r ${PREV_HEAD} ${CURR_HEAD} server/datastore/mysql/migrations)"
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if [ -z "${DIFF_MIGRATION_FILES}" ]; then
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echo "No datastore migrations between branches, leaving db alone"
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exit 0
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fi
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mkdir -p "${DUMP_DIR}"
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## Get the human-readable branch names and paths for db dumps
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PREV_BRANCH="$(git name-rev --name-only --exclude='remotes/*' ${PREV_HEAD})"
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if [ "${PREV_BRANCH}" = "HEAD" ]; then
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# If the only refernce we get is HEAD, use the commit hash
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PREV_BRANCH="${PREV_HEAD}"
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fi
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CURR_BRANCH="$(git name-rev --name-only --exclude='remotes/*' ${CURR_HEAD})"
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if [ "${CURR_BRANCH}" = "HEAD" ]; then
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CURR_BRANCH="${CURR_HEAD}"
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fi
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PREV_BRANCH_SAFE="$(echo $PREV_BRANCH | sed 's|/|_|g')"
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CURR_BRANCH_SAFE="$(echo $CURR_BRANCH | sed 's|/|_|g')"
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PREV_DUMP_NAME="${PREV_BRANCH_SAFE} $(date "+%Y-%m-%d %H:%M:%S").sql.gz"
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PREV_DUMP_PATH="${DUMP_DIR}${PREV_DUMP_NAME}"
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CURR_DUMP_NAME="$(ls $DUMP_DIR | grep "^${CURR_BRANCH_SAFE} " | head -n 1)"
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if [ -n "${CURR_DUMP_NAME}" ]; then
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CURR_DUMP_PATH="${DUMP_DIR}${CURR_DUMP_NAME}"
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fi
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## Run the tools
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echo "Dumping old branch db to ${PREV_DUMP_PATH}"
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$BACKUP_TOOL "${PREV_DUMP_PATH}"
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if [ -n "${CURR_DUMP_PATH}" ]; then
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echo "Restoring curremt branch db from ${CURR_DUMP_PATH}"
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$RESTORE_TOOL "${CURR_DUMP_PATH}"
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else
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echo "No existing backup, leaving db"
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fi
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