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R""(
# Examples
* Start a shell with the build environment of the default package of
the flake in the current directory:
```console
# nix develop
```
Typical commands to run inside this shell are:
```console
# configurePhase
# buildPhase
# installPhase
```
Alternatively, you can run whatever build tools your project uses
directly, e.g. for a typical Unix project:
```console
# ./configure --prefix=$out
# make
# make install
```
* Run a particular build phase directly:
```console
# nix develop --unpack
# nix develop --configure
# nix develop --build
# nix develop --check
# nix develop --install
# nix develop --installcheck
```
* Start a shell with the build environment of GNU Hello:
```console
# nix develop nixpkgs#hello
```
* Record a build environment in a profile:
```console
# nix develop --profile /tmp/my-build-env nixpkgs#hello
```
* Use a build environment previously recorded in a profile:
```console
# nix develop /tmp/my-build-env
```
* Replace all occurrences of the store path corresponding to
`glibc.dev` with a writable directory:
```console
# nix develop --redirect nixpkgs#glibc.dev ~/my-glibc/outputs/dev
```
Note that this is useful if you're running a `nix develop` shell for
`nixpkgs#glibc` in `~/my-glibc` and want to compile another package
against it.
# Description
`nix develop` starts a `bash` shell that provides an interactive build
environment nearly identical to what Nix would use to build
*installable*. Inside this shell, environment variables and shell
functions are set up so that you can interactively and incrementally
build your package.
Nix determines the build environment by building a modified version of
the derivation *installable* that just records the environment
initialised by `stdenv` and exits. This build environment can be
recorded into a profile using `--profile`.
The prompt used by the `bash` shell can be customised by setting the
`bash-prompt` and `bash-prompt-suffix` settings in `nix.conf` or in
the flake's `nixConfig` attribute.
# Flake output attributes
If no flake output attribute is given, `nix develop` tries the following
flake output attributes:
* `devShells.<system>.default`
* `packages.<system>.default`
If a flake output *name* is given, `nix develop` tries the following flake
output attributes:
* `devShells.<system>.<name>`
* `packages.<system>.<name>`
* `legacyPackages.<system>.<name>`
)""
|
