feat: migrate python backends from conda to uv (#2215)

* feat: migrate diffusers backend from conda to uv

  - replace conda with UV for diffusers install (prototype for all
    extras backends)
  - add ability to build docker with one/some/all extras backends
    instead of all or nothing

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate autogtpq bark coqui from conda to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: convert exllama over to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate exllama2 to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate mamba to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate parler to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate petals to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: fix tests

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate rerankers to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate sentencetransformers to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: install uv for tests-linux

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: make sure file exists before installing on intel images

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate transformers backend to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate transformers-musicgen to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate vall-e-x to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: migrate vllm to uv

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: add uv install to the rest of test-extra.yml

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: adjust file perms on all install/run/test scripts

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: add missing acclerate dependencies

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: add some more missing dependencies to python backends

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: parler tests venv py dir fix

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: correct filename for transformers-musicgen tests

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: adjust the pwd for valle tests

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: cleanup and optimization work for uv migration

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: add setuptools to requirements-install for mamba

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: more size optimization work

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* feat: make installs and tests more consistent, cleanup some deps

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: cleanup

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: mamba backend is cublas only

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

* fix: uncomment lines in makefile

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

---------

Signed-off-by: Chris Jowett <421501+cryptk@users.noreply.github.com>

backend/python/transformers-musicgen/test.sh

@@ -1,11 +1,16 @@
 #!/bin/bash
 ##
-## A bash script wrapper that runs the transformers server with conda
+## A bash script wrapper that runs python unittests
 
-# Activate conda environment
-source activate transformers
+MY_DIR="$(dirname -- "${BASH_SOURCE[0]}")"
 
-# get the directory where the bash script is located
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+source $MY_DIR/venv/bin/activate
 
-python -m unittest $DIR/test_transformers.py
+if [ -f "${MY_DIR}/test.py" ]; then
+    pushd ${MY_DIR}
+    python -m unittest test.py
+    popd
+else
+    echo "ERROR: No tests defined for backend!"
+    exit 1
+fi