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c3fd96c429
* Don't bother reading empty version files * Implement version file read in pure bash Is faster with usual sized version files, slower with degenerate cases.
21 lines
553 B
Bash
Executable file
21 lines
553 B
Bash
Executable file
#!/usr/bin/env bash
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# Usage: pyenv version-file-read <file>
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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VERSION_FILE="$1"
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if [ -s "$VERSION_FILE" ]; then
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# Read the first non-whitespace word from the specified version file.
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# Be careful not to load it whole in case there's something crazy in it.
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IFS="${IFS}"$'\r'
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sep=
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while read -n 1024 -r version _ || [[ $version ]]; do
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[[ -z $version || $version == \#* ]] && continue
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printf "%s%s" "$sep" "$version"
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sep=:
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done <"$VERSION_FILE"
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[[ $sep ]] && { echo; exit; }
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fi
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exit 1
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