#!/bin/bash -e

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BASE_DIR=${1:-/srv/www/lesswrong/shared/files}
WIKI_DUMP_FILE="wiki.lesswrong.xml"
WIKI_DUMP_PATH="$BASE_DIR/$WIKI_DUMP_FILE"

# Download to a temp file
wget -q "http://wiki.lesswrong.com/$WIKI_DUMP_FILE.gz" -O "/tmp/$WIKI_DUMP_FILE.gz"

# Remove existing target file if present other wise gunzip won't extract
rm -f "/tmp/$WIKI_DUMP_FILE"

# Unzip
gunzip "/tmp/$WIKI_DUMP_FILE.gz"

# Move into place atomically (assuming on the same filesystem)
mv "/tmp/$WIKI_DUMP_FILE" "$WIKI_DUMP_PATH"
