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50 lignes
1.1 KiB
50 lignes
1.1 KiB
#!/usr/bin/env bash
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# Summary: Substitute realpath if unavailable as a builtin or file
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# Usage: . pyenv-virtualenv-realpath
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if ! {
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enable -f "${BASH_SOURCE%/*}"/../../../libexec/pyenv-realpath.dylib realpath ||
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type realpath
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} >/dev/null 2>&1; then
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if [ -n "$PYENV_NATIVE_EXT" ]; then
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echo "pyenv: failed to load \`realpath' builtin" >&2
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exit 1
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fi
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READLINK=$(type -p greadlink readlink | head -1)
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if [ -z "$READLINK" ]; then
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echo "pyenv: cannot find readlink - are you missing GNU coreutils?" >&2
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exit 1
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fi
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resolve_link() {
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$READLINK "$1"
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}
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realpath() {
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local f="$*" \
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name dir
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[[ $f ]] || {
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>&2 echo ${FUNCNAME[0]}: missing operand
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return
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}
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while [[ -L $f ]]; do
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f="$(resolve_link "$f")"
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done
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if [[ ! -d $f ]]; then
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name="/${f##*/}"
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# parent?
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dir="${f%/*}"
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if [[ $dir == $f ]]; then
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#lacks /: parent is current directory
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f="$PWD"
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else
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f="$dir"
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fi
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fi
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#absolute directory
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dir="$(cd "$f"
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pwd)"
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echo "$dir$name"
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}
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fi
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