diff options
| -rw-r--r-- | modules/default.nix | 61 |
1 files changed, 42 insertions, 19 deletions
diff --git a/modules/default.nix b/modules/default.nix index da31602..e4d9de4 100644 --- a/modules/default.nix +++ b/modules/default.nix @@ -102,20 +102,37 @@ in { Whether the shell is to be loaded by direnv. ''; }; - pinDerivations = mkEnableOption "dependencies derivation pinning" // { - description = '' - Whether to pin the shell dependencies in a snapshot that will not be - garbage collected. + pinDerivations = { + enable = mkEnableOption "dependencies derivation pinning" // { + description = '' + Whether to pin the shell dependencies in a snapshot that will not be + garbage collected. - From https://nixos.wiki/wiki/Storage_optimization#Pinning : - This will create a persistent snapshot of your shell.nix dependencies, - which then won't be garbage collected, as long as you have configured - keep-outputs = true (and haven't changed the default of - keep-derivations = true). This is useful if your project has a - dependency with no substitutes available, or you don't want to spend - time waiting to re-download your dependencies every time you enter the - shell. - ''; + From https://nixos.wiki/wiki/Storage_optimization#Pinning : + This will create a persistent snapshot of your shell.nix dependencies, + which then won't be garbage collected, as long as you have configured + keep-outputs = true (and haven't changed the default of + keep-derivations = true). This is useful if your project has a + dependency with no substitutes available, or you don't want to spend + time waiting to re-download your dependencies every time you enter the + shell. + ''; + }; + filename = mkOption { + type = types.str; + default = "./shell.nix"; + description = '' + The name of the shell file whose dependencies are to be pinned. + ''; + example = "./default.nix"; + }; + outputDir = mkOption { + type = types.str; + default = "./.nix-gc-roots"; + description = '' + The name of the directory in which to store the derivation snapshots. + ''; + }; }; # Hooks @@ -163,10 +180,16 @@ in { makeAliasCommand = name: value: let target = "${aliasDir}/${name}"; in '' - echo '#!${pkgs.bash}/bin/bash -e' > "${target}" - echo "${value}" >> "${target}" - chmod +x "${target}" - ''; + echo '#!${pkgs.bash}/b Please let me know if you test positive for covid. + Since there are no new cases since last weekend, I asked + the teachers to teach face to face again. + + Take care of you, + + in/bash -e' > "${target}" + echo "${value}" >> "${target}" + chmod +x "${target}" + ''; in (['' mkdir -p "${aliasDir}" rm -f "${aliasDir}"/* @@ -176,8 +199,8 @@ in { (let makeAliasCommand = name: value: ''alias "${name}"="${value}"''; in (attrValues (mapAttrs makeAliasCommand cfg.aliases)))) # pinDerivations - ++ (optional cfg.pinDerivations '' + ++ (optional cfg.pinDerivations.enable '' rm -rf .nix-gc-roots - ${pkgs.nix}/bin/nix-instantiate shell.nix --indirect --add-root ./.nix-gc-roots/shell.drv + ${pkgs.nix}/bin/nix-instantiate '${cfg.pinDerivations.filename}' --indirect --add-root '${cfg.pinDerivations.outputDir}/shell.drv' '')); } |