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b0cff001ff
A workaround because tests don't use the Pyenv launcher and setting PYENV_DIR to $PWD at every run invocation is too cumbersome.
47 lines
1.6 KiB
Bash
Executable file
47 lines
1.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Usage: pyenv version-file [<dir>]
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# Summary: Detect the file that sets the current pyenv version
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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target_dir="$1"
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find_local_version_file() {
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local root="$1"
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# Nonexistent paths are UB as of this writing.
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# Relative ones cause a failure but absolute ones don't
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[[ $root != /* ]] && root=$(CDPATH= cd -- "$root" && pwd)
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# Original Rbenv code supports UNC notation for Cygwin/MinGW
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# (https://github.com/rbenv/rbenv/pull/529)
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# POSIX.1-2024 still allows to treat //<name> in implementation-specific manner
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# (https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/V1_chap04.html#tag_04_16)
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# even though few UNIX variants do that
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local unc; [[ $root =~ ^//[^/] && ! / -ef // ]] && unc=1
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root="${root%/}"
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# when testing root, $root is ""
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while true; do
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# don't test //.python-version if // is special
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# as it's pointless and possibly very slow
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# if it e.g. leads to a network search
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[[ $unc && $root == / ]] && break
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if [[ -f $root/.python-version ]]; then
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echo "$root/.python-version"
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return 0
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fi
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[[ -n $root ]] || break
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root="${root%/*}"
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done
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return 1
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}
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if [ -n "$target_dir" ]; then
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find_local_version_file "$target_dir"
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else
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# In tests, PYENV_DIR is not set, ultimately leading to "cd: null directory" in OpenSUSE
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# While most `cd` implemntations treat an empty argument the same as missing, that's still wrong
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find_local_version_file "${PYENV_DIR:=$PWD}" || {
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[ "$PYENV_DIR" != "$PWD" ] && find_local_version_file "$PWD"
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} || echo "${PYENV_ROOT}/version"
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fi
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