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Fix README
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Nicolas Mattia
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README.md
36
README.md
@ -3,8 +3,7 @@
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[](https://circleci.com/gh/nmattia/niv)
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[](https://niv.nmattia.com)
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Painless dependencies for [Nix] projects. Read more in the [use case
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section](#use-cases) section below.
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Painless dependencies for [Nix] projects. Read more in the [Getting started](#getting-started) section below.
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<p align="center">
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<img src="https://niv.nmattia.com/niv.svg">
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@ -47,10 +46,10 @@ necessary for fetching and updating the packages.
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`nix/sources.nix` file that returns the sources as a Nix object.
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* [Show](#show): shows the packages' information.
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The next two sections cover [common use cases](#use-cases) and [full command
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The next two sections cover [common use cases](#getting-started) and [full command
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description](#commands).
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### Use cases
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### Getting started
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This section covers common use cases:
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@ -61,23 +60,19 @@ This section covers common use cases:
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#### Bootstrapping a Nix project
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There is an `init` command that is useful when starting a new Nix project or
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when porting an existing Nix project to the niv versioning:
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Use the `init` command when starting a new Nix project or when porting an
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existing Nix project to niv:
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``` shell
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$ niv init
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...
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$ tree
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.
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├── default.nix
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├── nix
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│ ├── default.nix
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│ ├── packages.nix
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│ ├── sources.json
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│ └── sources.nix
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└── shell.nix
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└── nix
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├── sources.json
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└── sources.nix
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1 directory, 6 files
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1 directory, 2 files
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```
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The file `nix/sources.json` is the file used by niv to store versions and is
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@ -109,24 +104,19 @@ initialized with niv and nixpkgs:
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}
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```
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The content of this file can be used from Nix by importing `nix/sources.nix` as
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done in the generated `nix/default.nix` file:
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To use those dependencies `import` the file `nix/sources.nix`, e.g.:
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``` nix
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{ sources ? import ./sources.nix }:
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{ sources ? import ./sources.nix }: # import the sources
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with
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{ overlay = _: pkgs:
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{ inherit (import sources.niv {}) niv;
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packages = pkgs.callPackages ./packages.nix {};
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{ niv = import sources.niv {}; # use the sources :)
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};
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};
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import sources.nixpkgs
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import sources.nixpkgs # and use them again!
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{ overlays = [ overlay ] ; config = {}; }
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```
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The files `default.nix`, `shell.nix` and `nix/packages.nix` are placeholders
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for your project.
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#### Tracking a nixpkgs branch
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The `init` command sets the `nix/sources.json` file to track the latest commit
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@ -3,8 +3,7 @@
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[](https://circleci.com/gh/nmattia/niv)
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[](https://niv.nmattia.com)
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Painless dependencies for [Nix] projects. Read more in the [use case
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section](#use-cases) section below.
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Painless dependencies for [Nix] projects. Read more in the [Getting started](#getting-started) section below.
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<p align="center">
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<img src="https://niv.nmattia.com/niv.svg">
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@ -47,10 +46,10 @@ necessary for fetching and updating the packages.
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`nix/sources.nix` file that returns the sources as a Nix object.
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* [Show](#show): shows the packages' information.
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The next two sections cover [common use cases](#use-cases) and [full command
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The next two sections cover [common use cases](#getting-started) and [full command
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description](#commands).
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### Use cases
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### Getting started
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This section covers common use cases:
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@ -61,23 +60,19 @@ This section covers common use cases:
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#### Bootstrapping a Nix project
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There is an `init` command that is useful when starting a new Nix project or
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when porting an existing Nix project to the niv versioning:
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Use the `init` command when starting a new Nix project or when porting an
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existing Nix project to niv:
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``` shell
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$ niv init
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...
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$ tree
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.
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├── default.nix
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├── nix
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│ ├── default.nix
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│ ├── packages.nix
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│ ├── sources.json
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│ └── sources.nix
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└── shell.nix
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└── nix
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├── sources.json
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└── sources.nix
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1 directory, 6 files
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1 directory, 2 files
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```
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The file `nix/sources.json` is the file used by niv to store versions and is
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@ -109,24 +104,19 @@ initialized with niv and nixpkgs:
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}
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```
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The content of this file can be used from Nix by importing `nix/sources.nix` as
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done in the generated `nix/default.nix` file:
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To use those dependencies `import` the file `nix/sources.nix`, e.g.:
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``` nix
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{ sources ? import ./sources.nix }:
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{ sources ? import ./sources.nix }: # import the sources
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with
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{ overlay = _: pkgs:
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{ inherit (import sources.niv {}) niv;
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packages = pkgs.callPackages ./packages.nix {};
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{ niv = import sources.niv {}; # use the sources :)
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};
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};
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import sources.nixpkgs
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import sources.nixpkgs # and use them again!
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{ overlays = [ overlay ] ; config = {}; }
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```
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The files `default.nix`, `shell.nix` and `nix/packages.nix` are placeholders
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for your project.
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#### Tracking a nixpkgs branch
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The `init` command sets the `nix/sources.json` file to track the latest commit
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