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#!/bin/sh -e
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if [ $# -lt 2 ] || [ $# -gt 3 ]; then
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cat >&2 <<EOD
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usage: $0 CONFIG_FILE FROM_REV [TO_REV]
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Runs a database migration from FROM_REV to TO_REV (default: current
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working directory parent), using the specified CONFIG_FILE (.ini file).
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Test is run using a clean Kallithea install, in a temporary virtual
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environment. FROM_REV and (optional) TO_REV should be Mercurial revision
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identifiers (e.g. changeset hash or a version number tag). The working
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directory is not touched, but the database referenced in the config file
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will be (re)created.
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Only SQLite is available out of the box; for MySQL or PostgreSQL, set
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the EXTRA environment variable to the required package(s), and it'll
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be installed in the virtual environment. (E.g. EXTRA=MySQL-python or
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EXTRA=psycopg2.)
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The temporary directory is not removed, allowing follow-up examination
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of the upgrade results. It is, however, created in /tmp by default,
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which many Linux distributions automatically clean at regular intervals.
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EOD
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exit 1
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fi
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config_file=$(readlink -f "$1")
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from_rev=$2
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to_rev=$3
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source_repo=$(dirname "$(dirname "$(readlink -f "$0")")")
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announce() {
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echo
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echo "$1"
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echo
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}
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quiet_if_ok() (
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local output
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local st
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set +e
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output=$("$@" < /dev/null 2>&1)
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st=$?
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if [ $st -ne 0 ]; then
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echo "$output" >&2
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echo "Command $@ returned exit status $st." >&2
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exit 1
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fi
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)
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HG() {
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"${HG:-hg}" --repository "$source_repo" "$@"
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}
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# If upgrading to "current revision", warn if working directory is dirty.
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if [ ! "$to_rev" ] && [ "$(HG status -mard)" ]; then
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announce "Warning: Uncommitted changes in working directory will be ignored!"
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fi
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from_rev_hash=$(HG id --id --rev "${from_rev:-.}")
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to_rev_hash=$(HG id --id --rev "${to_rev:-.}")
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temp=$(readlink -f "$(mktemp --tmpdir -d 'dbmigrate-test.XXXXXX')")
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cat <<EOD
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Config file: $config_file
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EOD
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sed -n -e 's/^sqlalchemy\.url *= */Database URL: /p' "$config_file"
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cat <<EOD
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Working dir: $temp
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Repository: $source_repo
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Upgrade from: $from_rev_hash (${from_rev:-current})
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Upgrade to: $to_rev_hash (${to_rev:-current})
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Extra packages: ${EXTRA:-(none)}
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EOD
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mkdir "$temp/repos" # empty
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# Enable caching for old pip versions (this will cache the pip upgrade)
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# Newer pip versions cache automatically, and don't use this variable.
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if [ ! "$PIP_DOWNLOAD_CACHE" ]; then
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export PIP_DOWNLOAD_CACHE=$HOME/.cache/pip/legacy
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fi
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install_kallithea() {
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local prefix=$1
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local rev=$2
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announce "Installing Kallithea $rev in $prefix..."
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"${VIRTUALENV:-virtualenv}" --quiet "$prefix-env"
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HG archive --rev "$rev" "$prefix"
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(
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cd "$prefix"
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. "$prefix-env/bin/activate"
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pip install --quiet --upgrade pip "setuptools<67" mercurial $EXTRA
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pip install --quiet -e .
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)
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}
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install_kallithea "$temp/from" "$from_rev_hash"
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(
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cd "$temp/from"
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. "$temp/from-env/bin/activate"
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announce "Initializing database..."
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quiet_if_ok kallithea-cli db-create -c "$config_file" --repos="$temp/repos" --user=doe --email=doe@example.com --password=123456 --no-public-access --force-yes
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alembic -c "$config_file" current -v
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)
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install_kallithea "$temp/to" "$to_rev_hash"
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(
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cd "$temp/to"
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. "$temp/to-env/bin/activate"
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announce "Commencing database upgrade from shown Alembic revision to head..."
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alembic -c "$config_file" current -v
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alembic -c "$config_file" upgrade head
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announce "Upgrade complete, now at the shown Alembic revision:"
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alembic -c "$config_file" current -v
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)
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