Created Dockerfile for a neovim container.

nvim/tools/Dockerfile

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+# Docker file for base Neovim image.
+# Debian image as base (unstable for newest software).
+FROM debian:unstable
+
+RUN apt-get update && apt-get install -y locales
+
+# Set image locale.
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+ENV TZ=America/New_York
+
+# Update repositories and install software:
+# 1. curl.
+# 2. fzf for fast file search.
+# 3. ripgrep for fast text occurrence search.
+# 4. tree for files tree visualization.
+# 5. Git.
+# 6. Lazygit for Git visualization.
+# 7. xclip for clipboard handling.
+# 8. Python 3.
+# 9. pip for Python.
+# 10. NodeJS.
+# 11. npm for NodeJS.
+# 12. tzdata to set default container timezone.
+# 13. Everything needed to install Neovim from source.
+RUN apt-get update && apt-get -y install curl fzf ripgrep tree git xclip python3 python3-pip nodejs npm tzdata ninja-build gettext libtool libtool-bin autoconf automake cmake g++ pkg-config zip unzip fish tmux
+
+# Cooperate Neovim with Python 3.
+RUN python3 -m pip install --break-system-packages --root-user-action ignore pynvim
+
+# Cooperate NodeJS with Neovim.
+RUN npm i -g neovim
+
+# Install Neovim from source.
+RUN mkdir -p /root/TMP
+RUN cd /root/TMP && git clone https://github.com/neovim/neovim
+RUN cd /root/TMP/neovim && git checkout stable && make -j4 && make install
+RUN rm -rf /root/TMP
+
+# Create directory for Neovim spell check dictionaries.
+RUN mkdir -p /root/.local/share/nvim/site/spell
+
+# Copy Neovim dictionaries.
+#COPY ./spell/ /root/.local/share/nvim/site/spell/
+
+# Create directory for Neovim spell check dictionaries.
+RUN git clone https://gitea.setlock.net/shaun/dotfiles.git
+
+# Create directory for Neovim configuration files.
+RUN mkdir -p /root/.config/nvim
+
+# Softlink Neovim configuration files.
+RUN ln -s /root/dotfiles/nvim /root/.config/nvim
+#COPY ./config/ /root/.config/nvim/
+
+# Create directory for projects (there should be mounted from host).
+RUN mkdir -p /root/workspace
+
+# Set default location after container startup.
+WORKDIR /root/workspace
+
+# Avoid container exit.
+CMD ["tail", "-f", "/dev/null"]