Statamic Move Assets

statamic-move-assets.sh

#!/bin/bash

set -e

ASSET_PATH='./public/assets'
UPDATE_PATHS=('./content' './resources')

# Make sure we are in project root
if ! grep --quiet 'statamic/cms' composer.json 2> /dev/null
then
    >&2 echo '$0: Current directory needs to be in project root of statamic project'
    exit 1
fi

if [[ ! -d ${ASSET_PATH} ]]
then
    >&2 echo "$0: Asset path not found"
    exit 1
fi

for UPDATE_PATH in $UPDATE_PATHS
do
    if [[ ! -d ${UPDATE_PATH} ]]
    then
        >&2 echo "$0: Update path '$UPDATE_PATH' not found"
        exit 1
    fi
done

if [[ $# -ne 1 ]]
then
    >&2 echo "Usage: $0 (before|after)"
    exit 1
fi

STAGE=$1

if [[ $STAGE == 'before' ]]
then
    echo "$0: Committing before state..."
    git -C ${ASSET_PATH} init > /dev/null
    git -C ${ASSET_PATH} add -A > /dev/null
    git -C ${ASSET_PATH} commit \
        --message "Snapshot of before state" \
        --author="Move Assets Script <noreply@involve.at>" \
        || true # If there is nothing to commit, ignore error
    echo "$0: Done! Move your assets and call '$0 after' afterwards to update the paths"
    exit 0
fi

if [[ $STAGE == 'after' ]]
then
    # Stage all changes (so file movement is tracked)
    git -C ${ASSET_PATH} add -A > /dev/null
    # Check if there are any changes that are not renames
    if git -C ${ASSET_PATH} status -s | grep -v '.meta' | grep -qv '^R'
    then
        >&2 echo "$0: Error: Git tracked changes that are not renames! Remove the non-rename changes and try again."
        exit 1
    fi
    CHANGES=$(git -C ${ASSET_PATH} status -s | grep -v '.meta') || {
        echo "$0: No changes in assets"
        exit 0
    }
    echo "$0: Detected $(echo "$CHANGES" | wc -l) changes"
    IFS_BEFORE=$IFS
    IFS=$'\n'
    REGEX="^R  (.+) -> (.+)$"
    for change in $CHANGES
    do
        if [[ $change =~ $REGEX ]]
        then
            before=${BASH_REMATCH[1]}
            escaped_before=$(printf '%s\n' "$before" | sed -e 's/[]\/$*.^[]/\\&/g')
            after=${BASH_REMATCH[2]}
            escaped_after=$(printf '%s\n' "$after" | sed -e 's/[\/&]/\\&/g')
            for UPDATE_PATH in $UPDATE_PATHS
            do
                find "${UPDATE_PATH}" -type f -not -path '*/\.*' -print0 | xargs -0 sed -i '' "s/$escaped_before/$escaped_after/g"
            done
        else
            >&2 echo "$0: Error: Could not parse change: '$change'"
            exit 1
        fi
    done
    IFS=$IFS_BEFORE
    echo "All done! You can remove the temporary git repo in the assets folder using 'rm -rf ${ASSET_PATH}/.git'"
    exit 0
fi

>&2 echo "$0: Unknown stage: '$STAGE'. Use either 'before' or 'after'."