mirror of
https://github.com/nmattia/niv.git
synced 2024-11-07 22:36:53 +03:00
Get rid of cabal2nix
The `callCabal2nix` invocation caused `cabal2nix` to be downloaded on every install of `niv`. This introduces `foo`, a Nix function that does exactly the same.
This commit is contained in:
Nicolas Mattia
parent
50600603b5
commit
140dd34d49
@ -51,7 +51,7 @@ with rec
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pkgs.haskell.lib.disableExecutableProfiling (
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pkgs.haskell.lib.disableLibraryProfiling (
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pkgs.haskell.lib.generateOptparseApplicativeCompletion "niv" (
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haskellPackages.callCabal2nix "niv" niv-source {}
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(pkgs.callPackage ./foo {}).buildPackage { root = ./.; src = niv-source; }
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)
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)
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)
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83
foo/default.nix
Normal file
83
foo/default.nix
Normal file
@ -0,0 +1,83 @@
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{ haskellPackages
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, stdenv
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, lib
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}:
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{
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buildPackage =
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attrs:
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let
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src = if !lib.isDerivation attrs && lib.isAttrs attrs then attrs.src else attrs;
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root = if !lib.isDerivation attrs && lib.isAttrs attrs then attrs.root else attrs;
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nubdeps = ds: lib.lists.sort (x: y: x < y) (
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lib.unique (
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map (d: lib.head (lib.splitString " " d)) ds
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)
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);
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spec = builtins.fromJSON (builtins.readFile (root + "/package.yaml"));
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commonDeps = spec.dependencies;
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libraryExtraDeps =
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lib.optionals
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(spec ? library && spec.library ? dependencies)
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spec.library.dependencies;
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libraryDeps = nubdeps (commonDeps ++ libraryExtraDeps);
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exeExtraDeps = lib.optionals (spec ? executables) (
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lib.concatMap
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(
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exe: lib.optionals
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(exe ? dependencies) exe.dependencies
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)
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(builtins.attrValues spec.executables)
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);
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exeDeps =
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nubdeps
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(
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builtins.filter (x: x != spec.name)
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(commonDeps ++ exeExtraDeps)
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);
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testExtraDeps = lib.optionals (spec ? tests) (
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lib.concatMap
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(
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test: lib.optionals
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(test ? dependencies) test.dependencies
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)
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(builtins.attrValues spec.tests)
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);
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testDeps = nubdeps (builtins.filter (x: x != spec.name) (commonDeps ++ testExtraDeps));
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depsFor = depType:
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map (
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d:
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if ! builtins.hasAttr d haskellPackages
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then throw "haskellPackages does not contain dependency '${d}' needed for '${depType}'"
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else
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haskellPackages.${d}
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);
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in
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haskellPackages.callPackage (
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{ mkDerivation }:
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haskellPackages.mkDerivation {
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pname = spec.name;
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version = spec.version;
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inherit src;
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isLibrary = builtins.hasAttr "library" spec;
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isExecutable = builtins.hasAttr "executables" spec;
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enableSeparateDataOutput = true;
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libraryHaskellDepends = depsFor "libraryHaskellDepends" libraryDeps;
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libraryToolDepends = [ haskellPackages.hpack ];
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executableHaskellDepends = depsFor "executableHaskellDepends" exeDeps;
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testHaskellDepends = depsFor "testHaskellDepends" testDeps;
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prePatch = "hpack";
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homepage = "https://github.com/${spec.github}#readme";
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description = spec.synopsis;
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license =
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if builtins.hasAttr "license" spec && spec.license == "MIT"
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then stdenv.lib.licenses.mit
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else throw "Don't know how to handle license: ${builtins.toJSON spec.license}";
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}
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) {};
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}
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140
package.yaml
140
package.yaml
@ -1,67 +1,73 @@
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name: niv
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version: 0.2.13
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license: MIT
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author: Nicolas Mattia <nicolas@nmattia.com>
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maintainer: Nicolas Mattia <nicolas@nmattia.com>
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copyright: (c) 2019 Nicolas Mattia
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category: Development
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github: nmattia/niv
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synopsis: Easy dependency management for Nix projects
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description: Easy dependency management for Nix projects.
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ghc-options:
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- -Wall
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# For macOS: https://github.com/gibiansky/IHaskell/issues/942
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- -optP-Wno-nonportable-include-path
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data-files:
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- nix/sources.nix
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extra-source-files:
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- README.md
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dependencies:
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- aeson
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- aeson-pretty
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- ansi-terminal
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- base < 5
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- bytestring
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- directory
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- file-embed
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- filepath
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- hashable
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- http-conduit
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- mtl
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- optparse-applicative
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- process
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- profunctors
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- pureMD5
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- string-qq
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- text
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- unliftio
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- unordered-containers
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library:
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source-dirs:
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- src
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dependencies:
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- aeson
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- tasty
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- tasty-hunit
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- unordered-containers
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executables:
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niv:
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main: Niv.main
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source-dirs: app
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dependencies:
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- niv
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tests:
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unit:
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main: NivTest.main
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source-dirs: app
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dependencies:
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- tasty
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- niv
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{
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"name": "niv",
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"version": "0.2.13",
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"license": "MIT",
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"author": "Nicolas Mattia <nicolas@nmattia.com>",
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"maintainer": "Nicolas Mattia <nicolas@nmattia.com>",
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"copyright": "(c) 2019 Nicolas Mattia",
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"category": "Development",
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"github": "nmattia/niv",
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"synopsis": "Easy dependency management for Nix projects",
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"description": "Easy dependency management for Nix projects.",
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"ghc-options": [
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"-Wall",
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"-optP-Wno-nonportable-include-path"
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],
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"data-files": [
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"nix/sources.nix"
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],
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"extra-source-files": [
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"README.md"
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],
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"dependencies": [
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"aeson",
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"aeson-pretty",
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"ansi-terminal",
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"base < 5",
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"bytestring",
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"directory",
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"file-embed",
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"filepath",
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"hashable",
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"http-conduit",
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"mtl",
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"optparse-applicative",
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"process",
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"profunctors",
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"pureMD5",
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"string-qq",
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"text",
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"unliftio",
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"unordered-containers"
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],
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"library": {
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"source-dirs": [
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"src"
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],
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"dependencies": [
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"aeson",
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"tasty",
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"tasty-hunit",
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"unordered-containers"
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]
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},
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"executables": {
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"niv": {
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"main": "Niv.main",
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"source-dirs": "app",
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"dependencies": [
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"niv"
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]
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}
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},
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"tests": {
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"unit": {
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"main": "NivTest.main",
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"source-dirs": "app",
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"dependencies": [
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"tasty",
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"niv"
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]
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}
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}
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}
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