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OFA-OCR
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#!/bin/bash

SCRIPTS=mosesdecoder/scripts
TOKENIZER=$SCRIPTS/tokenizer/tokenizer.perl
NORM_PUNC=$SCRIPTS/tokenizer/normalize-punctuation.perl
REM_NON_PRINT_CHAR=$SCRIPTS/tokenizer/remove-non-printing-char.perl
BPEROOT=subword-nmt/subword_nmt


BPE_CODE=wmt18_en_de/code
SUBSAMPLE_SIZE=25000000
LANG=de


OUTDIR=wmt18_${LANG}_mono
orig=orig
tmp=$OUTDIR/tmp
mkdir -p $OUTDIR $tmp


URLS=(
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2007.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2008.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2009.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2010.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2011.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2012.de.shuffled.gz"
    "http://www.statmt.org/wmt14/training-monolingual-news-crawl/news.2013.de.shuffled.gz"
    "http://www.statmt.org/wmt15/training-monolingual-news-crawl-v2/news.2014.de.shuffled.v2.gz"
    "http://data.statmt.org/wmt16/translation-task/news.2015.de.shuffled.gz"
    "http://data.statmt.org/wmt17/translation-task/news.2016.de.shuffled.gz"
    "http://data.statmt.org/wmt18/translation-task/news.2017.de.shuffled.deduped.gz"
)
FILES=(
    "news.2007.de.shuffled.gz"
    "news.2008.de.shuffled.gz"
    "news.2009.de.shuffled.gz"
    "news.2010.de.shuffled.gz"
    "news.2011.de.shuffled.gz"
    "news.2012.de.shuffled.gz"
    "news.2013.de.shuffled.gz"
    "news.2014.de.shuffled.v2.gz"
    "news.2015.de.shuffled.gz"
    "news.2016.de.shuffled.gz"
    "news.2017.de.shuffled.deduped.gz"
)


cd $orig
for ((i=0;i<${#URLS[@]};++i)); do
    file=${FILES[i]}
    if [ -f $file ]; then
        echo "$file already exists, skipping download"
    else
        url=${URLS[i]}
        wget "$url"
    fi
done
cd ..


if [ -f $tmp/monolingual.${SUBSAMPLE_SIZE}.${LANG} ]; then
    echo "found monolingual sample, skipping shuffle/sample/tokenize"
else
    gzip -c -d -k $(for FILE in "${FILES[@]}"; do echo $orig/$FILE; done) \
    | shuf -n $SUBSAMPLE_SIZE \
    | perl $NORM_PUNC $LANG \
    | perl $REM_NON_PRINT_CHAR \
    | perl $TOKENIZER -threads 8 -a -l $LANG \
    > $tmp/monolingual.${SUBSAMPLE_SIZE}.${LANG}
fi


if [ -f $tmp/bpe.monolingual.${SUBSAMPLE_SIZE}.${LANG} ]; then
    echo "found BPE monolingual sample, skipping BPE step"
else
    python $BPEROOT/apply_bpe.py -c $BPE_CODE \
        < $tmp/monolingual.${SUBSAMPLE_SIZE}.${LANG} \
        > $tmp/bpe.monolingual.${SUBSAMPLE_SIZE}.${LANG}
fi


if [ -f $tmp/bpe.monolingual.dedup.${SUBSAMPLE_SIZE}.${LANG} ]; then
    echo "found deduplicated monolingual sample, skipping deduplication step"
else
    python deduplicate_lines.py $tmp/bpe.monolingual.${SUBSAMPLE_SIZE}.${LANG} \
    > $tmp/bpe.monolingual.dedup.${SUBSAMPLE_SIZE}.${LANG}
fi


if [ -f $OUTDIR/bpe.monolingual.dedup.00.de ]; then
    echo "found sharded data, skipping sharding step"
else
    split --lines 1000000 --numeric-suffixes \
        --additional-suffix .${LANG} \
        $tmp/bpe.monolingual.dedup.${SUBSAMPLE_SIZE}.${LANG} \
        $OUTDIR/bpe.monolingual.dedup.
fi