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https://github.com/pyenv/pyenv.git
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6188e9efa9
* Relocation only implemented for Linux (requires patchelf + ldconfig -p) * Shell-completing file name is not possible with current Pyenv completion logic: `pyenv-complete` does not pass info about the word being completed * Fix `save`-produced tarball to be compatible with Python-Build fetch_tarball() * Reuse test_helper from core -- Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>
59 lines
2.2 KiB
Bash
Executable File
59 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Summary: Rewrite an unpacked Python's rpaths so it runs from its prefix
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#
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# Usage: pyenv binary relocate <prefix>
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#
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# Rewrites the rpaths of a Python tree that was unpacked into <prefix> so the
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# interpreter and its extension modules load the bundled libraries from their
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# new location rather than the path it was built at. Requires patchelf.
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#
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# The definition that `pyenv binary generate-installer' produces calls this
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# after `install_package ... copy' has laid the tree down.
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#
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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if [ "$1" = "--complete" ]; then
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exit
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fi
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prefix="$1"
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if [ -z "$prefix" ]; then
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pyenv-help --usage binary-relocate >&2
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exit 1
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fi
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# patchelf can add an rpath and write one of any length; chrpath can only shorten
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# an existing one, which is not enough to relocate every build, so require it.
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if ! command -v patchelf >/dev/null 2>&1; then
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echo "pyenv-binary: need patchelf to relocate the binary" >&2
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exit 1
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fi
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# The interpreter loads libpython from ../lib. Patch every ELF binary in bin/ so
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# this holds whatever the interpreter is named (python3, python2.7, ...); the
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# scripts alongside it (pip, idle) are not ELF, so `--print-rpath' fails on them
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# and they are skipped. A tree with no interpreter at all did not unpack the way
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# we expect, so treat that as an error rather than quietly relocating nothing.
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found=0
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for file in "$prefix"/bin/*; do
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[[ -f $file && -x $file && ! -L $file ]] || continue
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patchelf --print-rpath "$file" >/dev/null 2>&1 || continue
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patchelf --set-rpath "$prefix/lib" "$file"
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found=1
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done
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if [ "$found" -eq 0 ]; then
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echo "pyenv-binary: found no interpreter to relocate under \`${prefix}/bin'" >&2
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exit 1
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fi
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# The extension modules CPython built are the only other objects with an rpath
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# into the old prefix, so point them at lib/ as well. Anything a wheel installed
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# carries an rpath of its own, often into a bundled library directory beside it,
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# and would stop loading if we overwrote it. Each match is an ELF object we expect
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# to patch, so let a failure stop us rather than swallow it.
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while IFS= read -r so; do
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patchelf --set-rpath "$prefix/lib" "$so"
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done < <(find "$prefix" -path '*/lib-dynload/*.so')
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