Fix MeloTTS Docker install

Remove the broken PyPI melotts install and install MeloTTS from the official GitHub repo in the Space Dockerfile, including the required init_downloads step.

Dockerfile

@@ -34,6 +34,9 @@ WORKDIR /app
 COPY --chown=user:user requirements.txt requirements-melo.txt ./
 RUN pip install -r requirements.txt
 
+RUN git clone https://github.com/myshell-ai/MeloTTS.git /tmp/MeloTTS && \
+    pip install -e /tmp/MeloTTS
+
 COPY --chown=user:user . /app
 
 RUN mkdir -p /app/models/supertonic-2 /app/models/kokoro /app/models/hf-cache /tmp/tts-server /store && \
@@ -58,6 +61,8 @@ PY
 
 RUN python -m unidic download
 
+RUN python /tmp/MeloTTS/melo/init_downloads.py
+
 RUN python - <<'PY'
 from melo.api import TTS
 TTS(language='EN', device='cpu', use_hf=True)

README.md

@@ -67,5 +67,5 @@ Then open `http://localhost:7860`.
 ## MeloTTS EN-only scaffold
 
 - The repo includes a `melo-en` engine scaffold.
-- MeloTTS is installed in the default Space image at build time.
+- MeloTTS is installed in the default Space image from the official GitHub repo at build time.
 - The model is enabled by default in the Space image via `ENABLE_MELO_TTS=true`.

requirements-melo.txt

@@ -1,3 +1,2 @@
-# MeloTTS EN-only dependency pinned for the Space image.
-# Import path is `from melo.api import TTS` even though the pip package is `melotts`.
-melotts==0.1.1
+# MeloTTS is installed from the official GitHub repo in the Space Dockerfile.
+# The PyPI `melotts==0.1.1` sdist is currently broken for non-interactive Docker builds.

requirements.txt

@@ -13,4 +13,3 @@ pytest==8.4.1
 httpx==0.28.1
 python-multipart==0.0.20
 jinja2>=3.0.0
-melotts==0.1.1