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==================
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Runtime Management
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==================
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The runtimes are managed with asdf and are activated in this project via the
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`.tool-versions <.tool-versions>`_. If you have not yet installed asdf_, then
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chapter :ref:`introduce asdf` may be of help to you.
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.. contents::
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:depth: 2
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:local:
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:backlinks: entry
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Get started
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===========
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If you have asdf installed you can install the runtimes of this project by:
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.. code:: bash
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$ cd /path/to/searxng
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$ asdf install # will install runtimes listed in .tool-versions
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...
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Manage Versions
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===============
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If you want to perform a ``test`` with special runtime versions of nodejs,
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python or shellcheck, you can patch the ``.tool-versions``:
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.. code:: diff
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--- a/.tool-versions
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+++ b/.tool-versions
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@@ -1,2 +1,2 @@
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-python 3.12.0
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-shellcheck 0.9.0
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+python 3.11.6
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+shellcheck 0.8.0
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To install use ``asdf install`` again. If the runtime tools have changed, any
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existing (nodejs and python) environments should be cleaned up with a ``make
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clean``.
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.. code:: bash
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$ asdf install
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...
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$ make clean test
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.. _introduce asdf:
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Introduce asdf
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==============
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To `download asdf`_ and `install asdf`_:
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.. code:: bash
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$ git clone https://github.com/asdf-vm/asdf.git ~/.asdf --branch <version>
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$ echo '. "$HOME/.asdf/asdf.sh"' >> ~/.bashrc
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$ echo '. "$HOME/.asdf/completions/asdf.bash"' >> ~/.bashrc
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Start a new shell and try to `install plugins`_:
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.. code:: bash
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$ asdf plugin-list-all | grep -E '(golang|python|nodejs|shellcheck).git'
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golang https://github.com/asdf-community/asdf-golang.git
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nodejs https://github.com/asdf-vm/asdf-nodejs.git
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python https://github.com/danhper/asdf-python.git
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shellcheck https://github.com/luizm/asdf-shellcheck.git
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$ asdf plugin add golang https://github.com/asdf-community/asdf-golang.git
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$ asdf plugin add nodejs https://github.com/asdf-vm/asdf-nodejs.git
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$ asdf plugin add python https://github.com/danhper/asdf-python.git
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$ asdf plugin add shellcheck https://github.com/luizm/asdf-shellcheck.git
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Each plugin has dependencies, to compile runtimes visit the URLs from above and
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look out for the dependencies you need to install on your OS, on Debian for the
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runtimes listed above you will need:
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.. code:: bash
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$ sudo apt update
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$ sudo apt install \
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dirmngr gpg curl gawk coreutils build-essential libssl-dev zlib1g-dev \
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libbz2-dev libreadline-dev libsqlite3-dev \
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libncursesw5-dev xz-utils tk-dev libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev
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With dependencies installed you can install/compile runtimes:
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.. code:: bash
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$ asdf install golang latest
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$ asdf install nodejs latest
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$ asdf install python latest
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$ asdf install shellcheck latest
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Python will be compiled and will take a while.
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In the repository the version is defined in `.tool-versions`_. Outside the
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repository, its recommended that the runtime should use the versions of the OS
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(`Fallback to System Version`_) / if not already done register the system
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versions global:
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.. code:: bash
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$ cd /
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$ asdf global golang system
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$ asdf global nodejs system
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$ asdf global python system
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$ asdf global shellcheck system
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.. _asdf: https://asdf-vm.com/
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.. _download asdf: https://asdf-vm.com/guide/getting-started.html#_2-download-asdf
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.. _install asdf: https://asdf-vm.com/guide/getting-started.html#_3-install-asdf
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.. _install plugins: https://asdf-vm.com/guide/getting-started.html#install-the-plugin
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.. _Fallback to System Version: https://asdf-vm.com/manage/versions.html#fallback-to-system-version
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