directory name and cd of all subdirectories in directory using shell

Question

Purpose

For each subdirectory in directory that contains a setup.py, run pip uninstall -y <directory name> and pip install .

Windows solution

> for /D %f in (.\*) do (cd "%cd%\%f" && set s=%f && set j=%s:~3% && pip uninstall %j% && pip install .)

EDIT: Looks like pip uninstall/reinstall can be done with:

(for %F in ("%cd%") do pip uninstall -y "%~nxF") & pip install .

Linux solution

#!/usr/bin/env bash

DIR="${DIR:-$PWD}
VENV="${VENV:-.venv}"
REQUIREMENTS="${REQUIREMENTS:-'requirements.txt'}";

if [ ! -d "$VENV/bin" ]; then
    echo Cannot find "$VENV/bin"
    exit 2;
fi

source "$VENV/bin/activate"

for f in "${DIR[@]}"; do
    if [ -f "$f/setup.py" ]; then
        builtin cd "$f";
        pip uninstall -y "${PWD##*/}";
        if [ -f "$REQUIREMENTS" ]; then
            pip install -r "$REQUIREMENTS"
        fi
        pip install .;
        builtin cd ..;
    fi;
done

---

As you can see, my Linux solution is much more versatile. Actually my Windows solution doesn't work.

The Windows solution is squashing the strings so things aren't deterministic between runs. Seems to be some weird parameter expansion going on. How am I meant to do it in CMD?

Answer 1

That looks like an unfair comparison between a badly written batch one liner and a full fledged bash script (I agree that cmd.exe is much more limited).
Why do you strip off the first 3 chars from the folder name when uninstalling?

This batch might work:

@Echo off
for /D %%f in (*) do (
  If exist "%f\setup.py" (
    PushD "%%f"
    pip uninstall "%%f"
    pip install .
    PopD
  )
)