Skip sort, native extension probe, and per-symlink realpath
when called with --bare --skip-aliases (the rehash case).
Use readlink to distinguish internal aliases (relative target)
from external installs (absolute target).
In MacOS, speeds up rehash by 5.2 ms (7%) in empty environment,
55.9 ms (33%) in a regular environment (3 ver, 12 venvs, 320 bins),
93.7 ms (15%) in a large environment (6 ver, 60 venvs, 1466 bins)
register_shim() already deduplicates via associative array (bash 4+) or
by checking if a shim already exists (bash 3.2). The sort -u pipe in the make_shims
call is thus redundant -- the dedup happens downstream regardless. Shim
creation is order-independent and idempotent, so sorting has no semantic
effect either.
Saves one subprocess fork during every rehash invocation.
provides a reliable way for Pyenv code to locate other parts of Pyenv code that are not under `PYENV_ROOT`
* tests: Work with Git entirely in a test repo
Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>
* perf: replace a series of if statements with a case block. Add error
handling for case where unknown option is provided.
Same setup as rbenv-init for reading arguments.
* perf, docs: Recommend users to specify the shell for `pyenv init -`
Speeds up the startup by about 40% (in local testing, from ~50ms to ~30ms).
Reflect this in `pyenv init` hint text.
* style: remove unnecessary `root` variable in pyenv-init
* style: remove unnecessary variable declarations at the top of file in pyenv-init.
* perf: replace `cat <<` calls with `echo`
The builtin `echo` is about 100x faster. In tests, saves about 2-3ms.
* docs: document the `pyenv init - <shell>` performance boost in the Advanced Configuration section.
* style: test_helper.bash: avoid unnecessary ".." in produced PATH
* docs: fix a false statement about completions location in the Advanced Configuration section.
