diff options
Diffstat (limited to '3 resources/nix')
-rw-r--r-- | 3 resources/nix/Flake.md | 22 | ||||
-rw-r--r-- | 3 resources/nix/Overlays.md | 11 | ||||
-rw-r--r-- | 3 resources/nix/Package.md | 6 | ||||
-rw-r--r-- | 3 resources/nix/REPL.md | 5 | ||||
-rw-r--r-- | 3 resources/nix/Shell.nix.md | 42 | ||||
-rw-r--r-- | 3 resources/nix/language/Import.md | 5 | ||||
-rw-r--r-- | 3 resources/nix/language/Let.md | 12 | ||||
-rw-r--r-- | 3 resources/nix/language/Rec.md | 20 | ||||
-rw-r--r-- | 3 resources/nix/language/With.md | 15 | ||||
-rw-r--r-- | 3 resources/nix/packages/Apply custom patches.md | 17 |
10 files changed, 0 insertions, 155 deletions
diff --git a/3 resources/nix/Flake.md b/3 resources/nix/Flake.md deleted file mode 100644 index 754556f..0000000 --- a/3 resources/nix/Flake.md +++ /dev/null @@ -1,22 +0,0 @@ -#nix #flake - ---- -Nix flakes are source trees containing a file `flake.nix` at their root. The file `flake.nix` provides a standardized way to provide [[Zettelkast/Index/Nix]] artifacts. It's like a package manager for [[Zettelkast/Index/Nix]]. A flake can be dependent on other Flakes and it's possible to pin dependencies to exact revisions by using a `flake.lock` file. - -Nix flake evaluation is hermetic, meaning that it produces the same result wherever it's built.k - -The feature can be enabled in `~/.config/nix/nix.conf`: - -``` -experimental-features = nix-command flakes -``` - -To initialize in a repo: `nix flake init`. - -In flakes dependencies have to be specified explicitly and MUST be locked to specific versions therefore it's no longer allowed to use the nixpkgs found in `NIX_PATH` by referencing it like `<nixpkgs>`. - -Output of a Flake is an arbitrary [[Zettelkast/Index/Nix]] value such as a package, [[NixOS]] module or library function. -Commands `nix build` and `nix shell` will build the output `packages.<system>.default` unless we specify another output, for example: `nix shell .#checks.aarch64-linux.build`. - ---- -[Flakes Wiki](https://nixos.wiki/wiki/Flakes)
\ No newline at end of file diff --git a/3 resources/nix/Overlays.md b/3 resources/nix/Overlays.md deleted file mode 100644 index 8ee33f3..0000000 --- a/3 resources/nix/Overlays.md +++ /dev/null @@ -1,11 +0,0 @@ -#nix #overlay - ---- -Functions that accept two args (conventionally: final, prev) and return a set of [[Package]]s. - -The `prev` arguments holds the set of packages of the "parent" overlay while the `final` argument holds the end result of **all** overlays applied. This means that overlays depend on each other. It is unclear how we can tell on which overlay an overlay depends. - -We can use it to override existing packages or add new packages. - ---- -https://nixos.wiki/wiki/Overlays diff --git a/3 resources/nix/Package.md b/3 resources/nix/Package.md deleted file mode 100644 index 32c6bd4..0000000 --- a/3 resources/nix/Package.md +++ /dev/null @@ -1,6 +0,0 @@ -#nix #packages - ---- -Packages != NixOS Modules - -Packages come from Nixpkgs.
\ No newline at end of file diff --git a/3 resources/nix/REPL.md b/3 resources/nix/REPL.md deleted file mode 100644 index 210b980..0000000 --- a/3 resources/nix/REPL.md +++ /dev/null @@ -1,5 +0,0 @@ -#nix #repl - ---- -`nix repl` to interactively evaluate Nix expressions. `:p` if output is not full. - `nix-instantiate --eval <file>.nix` to evaluate a Nix expression from a file. `--strict`.
\ No newline at end of file diff --git a/3 resources/nix/Shell.nix.md b/3 resources/nix/Shell.nix.md deleted file mode 100644 index 13715c2..0000000 --- a/3 resources/nix/Shell.nix.md +++ /dev/null @@ -1,42 +0,0 @@ -#nix #shell - ---- -Can be used to set up per dir environments, e.g using direnv to automatically activate them. -## Python -https://nixos.org/manual/nixpkgs/stable/#python - -```nix -{ pkgs ? import <nixpkgs> {}}: - -pkgs.mkShell { - packages = [ pkgs.virtualenv ]; -} -``` - -```nix -with import <nixpkgs> {}; -let - my_toolz = python311.pkgs.buildPythonPackage rec { - pname = "toolz"; - version = "0.10.0"; - pyproject = true; - src = fetchPypi { - inherit pname version; - hash = "sha256-CP3V73yWSArRHBLUct4hrNMjWZlvaaUlkpm1QP66RWA="; - }; - nativeBuildInputs = [ - python311.pkgs.setuptools - python311.pkgs.wheel - ]; # has no tests - doCheck = false; - meta = { - homepage = "https://github.com/pytoolz/toolz/"; - description = "List processing tools and functional utilities"; - # [...] - }; - }; -in python311.withPackages (ps: with ps; [ numpy my_toolz ]) ).env -``` - -The [[Import]] is required here because imports a nix expression from another source, in this case nixpkgs. -It is not required at line two, because python310Packages itself is already in the local scope.
\ No newline at end of file diff --git a/3 resources/nix/language/Import.md b/3 resources/nix/language/Import.md deleted file mode 100644 index d201c74..0000000 --- a/3 resources/nix/language/Import.md +++ /dev/null @@ -1,5 +0,0 @@ -#nix #keyword - ---- -The import keyword brings a Nix expression from another source into scope such that we can reference it. For example, we can `import <nixpkgs>` and it would bring the entire attribute set that is Nixpkgs into scope and allows us to reference any of its attributes. - diff --git a/3 resources/nix/language/Let.md b/3 resources/nix/language/Let.md deleted file mode 100644 index bfb4b31..0000000 --- a/3 resources/nix/language/Let.md +++ /dev/null @@ -1,12 +0,0 @@ -#nix #keyword - ---- -Keyword: `let` -Used to assign variables that can be used in an expression immediately following the let-binding. -```nix -let - one = 1; -in { - two = one + 1; -} -``` diff --git a/3 resources/nix/language/Rec.md b/3 resources/nix/language/Rec.md deleted file mode 100644 index b7050d3..0000000 --- a/3 resources/nix/language/Rec.md +++ /dev/null @@ -1,20 +0,0 @@ -#nix #keyword - ---- -Recursive attribute sets can reference values declared earlier in the same set. -keyword: `rec` -```nix -rec { - one = 1; - two = one + 1; -} -``` - -Ordering does not matter: -```nix -nix-repl> rec { two = one + 1; one = 1; } -{ - one = 1; - two = 2; -} -``` diff --git a/3 resources/nix/language/With.md b/3 resources/nix/language/With.md deleted file mode 100644 index b291907..0000000 --- a/3 resources/nix/language/With.md +++ /dev/null @@ -1,15 +0,0 @@ -#nix #keyword - ---- -The `with` keyword brings all attributes from a given set, e.g nixpkgs, into the local scope. Making them accessible as if they were declared in the same file. - -An example, bringing everything from nixpkgs into scope: -``` -with import <nixpkgs>; -with python310Packages; <-- declared in nixpkgs - -buildPythonPackage <-- declared in python310Packages -``` - -The import statement is required here because imports a nix expression from another source, in this case nixpkgs. -It is not required at line two, because python310Packages itself is already in the local scope.
\ No newline at end of file diff --git a/3 resources/nix/packages/Apply custom patches.md b/3 resources/nix/packages/Apply custom patches.md deleted file mode 100644 index 370c53a..0000000 --- a/3 resources/nix/packages/Apply custom patches.md +++ /dev/null @@ -1,17 +0,0 @@ -#nix #packages #overlay - ---- -We can apply patches to existing packages using [[Overlays]]: -```nix -final: prev { - nova = prev.nova.overrideAttrs (old: { - patches = (old.patches or []) ++ [ - prev.fetchpatch { - url = "https://github.com/owner/repo/commit/hash.patch"; - hash = "somehash"; - }) - ./relative.patch - ] - }) -} -``` |