mirror of
https://github.com/idris-lang/Idris2.git
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183 lines
5.9 KiB
Markdown
183 lines
5.9 KiB
Markdown
# Installing
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- [Installing from source](#installing-from-source)
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- [Installing from a package manager](#installing-from-a-package-manager)
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## Installing from source
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The easiest way to install is via the existing generated Scheme code.
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The requirements are:
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- A Scheme compiler; either Chez Scheme (default), or Racket.
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- `bash`, with `realpath`. On Linux, you probably already have this.
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On a macOS, you can install this with `brew install coreutils`.
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On FreeBSD, OpenBSD and NetBSD, you can install `realpath` and `GNU make`
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using a package manager. For instance, on OpenBSD you can install all of them
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with `pkg_add coreutils gmake` command.
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On Windows, it has been reported that installing via `MSYS2` works
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[MSYS2](https://www.msys2.org/). On Windows older than Windows 8, you may need to
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set an environment variable `OLD_WIN=1` or modify it in `config.mk`.
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On Raspberry Pi, you can bootstrap via Racket.
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By default, code generation is via Chez Scheme. You can use Racket instead,
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by setting the environment variable `IDRIS2_CG=racket` before running `make`.
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If you install Chez Scheme from source files, building it locally,
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make sure you run `./configure --threads` to build multithreading support in.
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**NOTE**: On FreeBSD, OpenBSD and NetBSD you need to use `gmake` command instead
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of `make` in the following steps.
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**NOTE**: If you're running macOS on Apple Silicon (arm64) you may need to run
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"`arch -x86_64 make ...`" instead of `make` in the following steps.
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### 1: Set installation target directory
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- Change the `PREFIX` in `config.mk` to the absolute path of your chosen
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installation destination. The default is to install in `$HOME/.idris2`
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If you have an existing Idris 2, go to Step 3. Otherwise, read on...
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Make sure that:
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- `$PREFIX/bin` is in your `PATH`
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- `$PREFIX/lib` is in your `LD_LIBRARY_PATH` or `DYLD_LIBRARY_PATH` if on
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`macOS` (so that the system knows where to look for library support code)
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### 2: Installing without an existing Idris 2
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You can build from pre-built Chez Scheme source, as long as you have Chez Scheme
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installed (or, alternatively, Racket). To do this, enter one of the following:
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- `make bootstrap SCHEME=chez`
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- `make bootstrap-racket`
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`chez` is the executable name of the Chez Scheme compiler. You may need to
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replace this with the executable for Chez Scheme on your system. This could be
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`scheme`, `chezscheme` or `chezscheme9.5` or something else, depending on your
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system and the Chez Scheme version.
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This builds an Idris 2 compiler from scheme code output from a working Idris 2
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compiler (which isn't necessarily up to date, but is up to date enough to
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build the current repository). It then rebuilds using the result, and runs
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the tests.
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If all is well, to install, type:
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- `make install`
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### 3: Installing with an existing Idris 2
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If you have an earlier version of Idris 2 (minimum version 0.2.2) installed:
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- `make all`
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- `make install`
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### 4: (Optional) Self-hosting step
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As a final step, you can rebuild from the newly installed Idris 2 to verify
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that everything has worked correctly. Assuming that `idris2` is in your
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`PATH`.
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- `make clean` -- to make sure you're building everything with the new version
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- `make all && make install` -- OR
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`make all IDRIS2_BOOT='idris2 --codegen racket' && make install`
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if using Racket.
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### 5: Running tests
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After `make all`, type `make test` to check everything works. This uses the
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executable in `./build/exec`.
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### 6: (Optional) Enabling incremental compilation
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If you are working on Idris, incremental compilation means that rebuilds are
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much faster, at the cost of runtime performance being slower. To enable
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incremental compilation for the Chez back end, set the environment variable
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`IDRIS2_INC_CGS=chez`, or set the `--inc chez` flag in `idris2.ipkg`.
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### 7: (Optional) Installing the Idris 2 API
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You'll only need this if you're developing support tools, such as an external
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code generator. To do so, once everything is successfully installed, type:
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- `make install-api`
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The API will only work if you've completed the self-hosting step, step 4, since
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the intermediate code versions need to be consistent throughout. Otherwise, you
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will get an `Error in TTC: TTC data is in an older format` error.
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### 8: (Optional) Shell Auto-completion
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Idris2 supports tab auto-completion for Bash-like shells.
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#### For Bash Users
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From within bash, run the following command:
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```sh
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eval "$(idris2 --bash-completion-script idris2)"
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```
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You can also add it to your `.bashrc` file.
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#### For ZSH Users
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From within ZSH, run the following commands:
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```sh
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autoload -U +X compinit && compinit
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autoload -U +X bashcompinit && bashcompinit
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eval "$(idris2 --bash-completion-script idris2)"
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```
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You can also add them to your `.zshrc` file.
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### Troubleshooting
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If you get the message `variable make-thread-parameter is not bound` while
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bootstrapping via Chez Scheme, or while running the tests when bootstrapping via
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Racket, then your copy of Chez Scheme was built without thread support. Pass
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`--threads` to `./configure` while building Chez Scheme to correct the issue.
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## Installing from a package manager
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### Installing using Homebrew
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If you are Homebrew user you can install Idris 2 together with all the requirements
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by running the following command:
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```sh
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brew install idris2
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```
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### Installing from nix
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If you are a [nix](https://nixos.org/features.html) user you can install Idris
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2 together with all the requirements by running the following command:
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```sh
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nix-env -i idris2
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```
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### Install from nix flakes
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If you are a [nix flakes](https://nixos.wiki/wiki/Flakes) user you can install
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Idris 2 together with all the requirements by running the following command:
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```sh
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nix profile install github:idris-lang/Idris2
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```
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## Running in text editor
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### Run on emacs using nix flakes
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If you are a [nix flakes](https://nixos.wiki/wiki/Flakes) user you can run
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Idris 2 in emacs by running the following command:
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```sh
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nix run github:idris-lang/Idris2#emacs-with-idris idrisCode.idr
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```
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