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35 lines
893 B
35 lines
893 B
#!/usr/bin/env bash
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# Usage:
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# ./fetch-language-hashes <tessdataRev> [<language code>…]
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#
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# Fetches all languages if no language codes are given.
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#
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# Example:
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# ./fetch-language-hashes 4.0.0 eng spa
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#
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# Output:
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# eng = "0iy0...";
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# spa = "15kw...";
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set -e
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(( $# >= 1 )) || exit 1
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tessdataRev=$1
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shift
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if (( $# > 0 )); then
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langCodes="$@"
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else
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repoPage=$(curl -fs https://github.com/tesseract-ocr/tessdata/tree/$tessdataRev || {
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>&2 echo "Invalid tessdataRev: $tessdataRev"
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exit 1
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})
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langCodes=$(echo $(echo "$repoPage" | grep -ohP "(?<=/)[^/ ]+?(?=\.traineddata)" | sort -u))
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fi
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for lang in $langCodes; do
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url=https://github.com/tesseract-ocr/tessdata/raw/$tessdataRev/$lang.traineddata
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hash=$(nix hash to-sri --type sha256 $(nix-prefetch-url $url 2>/dev/null))
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echo "$lang = \"$hash\";"
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done
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