239 lines
7.2 KiB
Bash
239 lines
7.2 KiB
Bash
#!/bin/bash
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# See backup_gitea.sh
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# Source to restore should include:
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# - gitea_backup.zip
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# - gitrepos_backup.tar.bz2
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# - lfs/*/*/*
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# Exit on error
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set -e
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usage () {
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echo "Script for restoring Gitea data from a backup. Will REPLACE existing data!!"
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echo "You probably DON'T WANT THIS SCRIPT directly, it only gets the data files back"
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echo "Look at restore_gitea_container.sh for a fully automated Docker container & DB restore"
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echo "Usage:"
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echo " restore_gitea_data.sh [--dry-run] <source_dir> <dest_dir> <sql_file_dest>"
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echo ""
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echo "Params:"
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echo " source_dir : Directory containing Gitea backup"
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echo " dest_dir : Directory to write data to (host, mapped to /data in container)"
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echo " sql_file_dest : Full file path of where to place gitea-db.sql from backup"
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echo "Options:"
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echo " --dry-run : Don't actually perform actions, just report"
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echo ""
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}
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if [[ "$1" == "--help" ]]; then
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usage
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exit 0
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fi
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DRYRUN=0
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SOURCE="gitea"
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DATADIR="data"
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SQLDEST=""
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USER_UID=1000
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GROUP_GID=1000
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while (( "$#" )); do
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if [[ "$1" == "--dry-run" ]]; then
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DRYRUN=1
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else
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if [[ "$1" == -* ]]; then
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echo Unrecognised option $1
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usage
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exit 3
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# Populate positional args
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elif [[ "$SOURCE" == "" ]]; then
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SOURCE=$1
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elif [[ "$DATADIR" == "" ]]; then
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DATADIR=$1
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else
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SQLDEST=$1
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fi
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fi
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shift # $2 becomes $1..
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done
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if [[ "$SOURCE" == "" ]]; then
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echo "Required: source folder"
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usage
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exit 3
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fi
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if [[ "$DATADIR" == "" ]]; then
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echo "Required: destination data dir"
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usage
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exit 3
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fi
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echo Checking required files exist in $SOURCE
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if [[ ! -f "$SOURCE/gitea_backup.zip" ]]; then
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echo "ERROR: Missing file in restore $SOURCE/gitea_backup.zip"
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exit 5
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fi
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if [[ ! -f "$SOURCE/gitrepos_backup.tar.bz2" ]]; then
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echo "ERROR: Missing file in restore $SOURCE/gitrepos_backup.tar.bz2"
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exit 5
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fi
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if [[ ! -d "$SOURCE/lfs" ]]; then
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echo "ERROR: Missing directory in restore $SOURCE/lfs"
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exit 5
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fi
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# The only thing we can't restore is the gitea/ssh folder, which contains the
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# server SSH keys. We leave that for Gitea to re-create on first start
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echo Checking container data
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if [[ ! -d "$DATADIR/gitea" ]]; then
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if (( $DRYRUN )); then
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echo "Would have created $DATADIR/gitea"
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else
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echo "Creating $DATADIR/gitea"
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mkdir -p $DATADIR/gitea
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chown -R $USER_UID:$GROUP_GID $DATADIR/gitea
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chmod -R u+rwX,go+rX,go-w $DATADIR/gitea
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fi
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fi
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if [[ ! -d "$DATADIR/git/repositories" ]]; then
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if (( $DRYRUN )); then
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echo "Would have created $DATADIR/git/repositories"
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else
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echo "Creating $DATADIR/git/repositories"
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mkdir -p $DATADIR/git/repositories
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chown -R $USER_UID:$GROUP_GID $DATADIR/git/repositories
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chmod -R u+rwX,go+rX,go-w $DATADIR/git/repositories
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fi
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fi
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if [[ ! -d "$DATADIR/git/lfs" ]]; then
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if (( $DRYRUN )); then
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echo "Would have created $DATADIR/git/lfs"
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else
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echo "Creating $DATADIR/git/lfs"
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mkdir -p $DATADIR/git/lfs
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chown -R $USER_UID:$GROUP_GID $DATADIR/git/lfs
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chmod -R u+rwX,go+rX,go-w $DATADIR/git/lfs
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fi
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fi
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GITEA_DATA_FILE="$SOURCE/gitea_backup.zip"
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echo "** Step 1 of 3: Gitea data START **"
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echo "Copying Gitea files back from $GITEA_DATA_FILE"
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# gitea_backup.zip contains:
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# gitea-db.sql - database dump in SQL form
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# app.ini - same as custom/conf/app.ini
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#
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# custom/ - All subfolders go back to data folder
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# conf/
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# log/
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# queues/
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# gitea.db - The actual SQLite DB file, seems the same?
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# indexers/
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# sessions/
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# avatars/
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# data/ - Again, all subfolders go back to data, same as custom??
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# conf/
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# log/
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# queues/
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# gitea.db - Actual sqlite data file
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# indexers/
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# sessions/
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# avatars/
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# log/ - Log files, we don't need these (will remove from backup script)
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# So there seems to be a lot of duplication in this dump
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# Even when I don't "gitea dump" with -C it still creates custom/ and data/
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# I think we only want the /data dir
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# Extract all to temp then copy
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TEMPDIR=`mktemp -d`
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# protect! because we're going to rm -rf this later
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if [[ ! "$TEMPDIR" == /tmp/* ]]; then
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echo Error: expected mktemp to give us a dir in /tmp, being careful & aborting
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fi
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echo "Extracting archive..."
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# We have to use 7z because that comes pre-installed on Synology but unzip doesn't
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# Send to /dev/null as 7z writes a bunch of crap that doesn't translate well to some terminals
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7z x -o$TEMPDIR $GITEA_DATA_FILE > /dev/null 2>&1
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# Unfortunately 7z doesn't restore file permissions / ownership
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# Docker Gitea has everything owned by 1000:1000
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echo "Fixing permissions"
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chown -R $USER_UID:$GROUP_GID $TEMPDIR
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# And permissions are 755/644 for dirs / files
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# The capital X only sets x bit on dirs, not files, which gives us 755/644
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chmod -R u+rwX,go+rX,go-w $TEMPDIR
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GITEA_DEST="$DATADIR/gitea"
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if (( $DRYRUN )); then
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echo "Would have copied data directory $TEMPDIR/data to $GITEA_DEST"
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echo "This was the structure:"
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ls -la $TEMPDIR/data
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else
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echo "Copying data directory $TEMPDIR/data to $GITEA_DEST"
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# Note -p is ESSENTIAL to preserve ownership
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cp -p -R -f $TEMPDIR/data/* $GITEA_DEST/
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fi
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if [[ ! "$SQLDEST" == "" ]]; then
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if (( $DRYRUN )); then
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echo "Would have copied $TEMPDIR/gitea-db.sql to $SQLDEST"
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else
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echo "Copying $TEMPDIR/gitea-db.sql to $SQLDEST"
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# Note -p is ESSENTIAL to preserve ownership
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cp -p -f $TEMPDIR/gitea-db.sql $SQLDEST
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fi
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fi
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rm -rf $TEMPDIR
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echo "** Step 1 of 3: Gitea data DONE **"
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# Now do repositories
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# tar preserves owner/permissions, and we tarred relative to data/git/repositories
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# so we can do this direct
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# remove all existing data so it's clean
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GIT_REPO_FILE="$SOURCE/gitrepos_backup.tar.bz2"
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GIT_REPO_DEST="$DATADIR/git/repositories"
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echo "** Step 2 of 3: Git repository data START **"
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echo "Restoring git repository data"
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if (( $DRYRUN )); then
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echo "Would have deleted $GIT_REPO_DEST/*"
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echo "Would have extracted $GIT_REPO_FILE to $GIT_REPO_DEST"
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echo "Repositories were: "
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# equivalent of depth = 2
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tar --exclude="*/*/*/*" -tf $GIT_REPO_FILE
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else
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echo "Cleaning existing repo data"
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rm -rf $GIT_REPO_DEST/*
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echo "Extracting $GIT_REPO_FILE to $GIT_REPO_DEST"
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tar -xf $GIT_REPO_FILE -C $GIT_REPO_DEST
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fi
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echo "Git repositories done"
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echo "** Step 2 of 3: Git repository data DONE **"
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echo "** Step 3 of 3: Git-LFS data START **"
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echo "Restoring Git-LFS data"
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GIT_LFS_SRC="$SOURCE/lfs"
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GIT_LFS_DEST="$DATADIR/git/lfs"
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# There is no reason to delete LFS data since it's all immutable
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# Instead rsync back like we did during backup
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if (( $DRYRUN )); then
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echo "Would have synced LFS data from $GIT_LFS_SRC to $GIT_LFS_DEST"
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else
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echo "Syncing LFS data from $GIT_LFS_SRC to $GIT_LFS_DEST"
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rsync -rLptgo $GIT_LFS_SRC/* $GIT_LFS_DEST/
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echo "Fixing LFS permissions"
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chown -R $USER_UID:$GROUP_GID $GIT_LFS_DEST
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# And permissions are 755/644 for dirs / files
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# The capital X only sets x bit on dirs, not files, which gives us 755/644
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chmod -R u+rwX,go+rX,go-w $GIT_LFS_DEST
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fi
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echo "** Step 3 of 3: Git-LFS data DONE **"
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echo "Gitea data restored successfully"
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