style: Switch to nixfmt from nixpkgs-fmt
Most of the ecosystem has moved to this formatter, and many people configured their editors to autoformat it with this formatter. Closes: https://git.snix.dev/snix/snix/issues/62 Change-Id: Icf39e7836c91fc2ae49fbe22a40a639105bfb0bd Reviewed-on: https://cl.snix.dev/c/snix/+/30671 Reviewed-by: Florian Klink <flokli@flokli.de> Tested-by: besadii Autosubmit: Ilan Joselevich <personal@ilanjoselevich.com>
This commit is contained in:
Ilan Joselevich
parent
3443e6bd08
commit
91d02d8c84
136 changed files with 39952 additions and 11007 deletions
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@ -1,100 +1,99 @@
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{ depot, lib, ... }:
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let
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/* Get the basename of a store path without
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the leading hash.
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/*
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Get the basename of a store path without
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the leading hash.
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Type: (path | drv | string) -> string
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Type: (path | drv | string) -> string
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Example:
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storePathName ./foo.c
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=> "foo.c"
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Example:
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storePathName ./foo.c
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=> "foo.c"
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storePathName (writeText "foo.c" "int main() { return 0; }")
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=> "foo.c"
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storePathName (writeText "foo.c" "int main() { return 0; }")
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=> "foo.c"
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storePathName "${hello}/bin/hello"
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=> "hello"
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storePathName "${hello}/bin/hello"
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=> "hello"
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*/
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storePathName = p:
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if lib.isDerivation p
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then p.name
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else if builtins.isPath p
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then builtins.baseNameOf p
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else if builtins.isString p || (builtins.isAttrs p && (p ? outPath || p ? __toString))
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then
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storePathName =
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p:
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if lib.isDerivation p then
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p.name
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else if builtins.isPath p then
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builtins.baseNameOf p
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else if builtins.isString p || (builtins.isAttrs p && (p ? outPath || p ? __toString)) then
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let
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strPath = toString p;
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# strip leading storeDir and trailing slashes
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noStoreDir = lib.removeSuffix "/"
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(lib.removePrefix "${builtins.storeDir}/" strPath);
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noStoreDir = lib.removeSuffix "/" (lib.removePrefix "${builtins.storeDir}/" strPath);
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# a basename of a child of a store path isn't really
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# referring to a store path, so removing the string
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# context is safe (e. g. "hello" for "${hello}/bin/hello").
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basename = builtins.unsafeDiscardStringContext
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(builtins.baseNameOf strPath);
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basename = builtins.unsafeDiscardStringContext (builtins.baseNameOf strPath);
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in
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# If p is a direct child of storeDir, we need to remove
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# the leading hash as well to make sure that:
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# `storePathName drv == storePathName (toString drv)`.
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if noStoreDir == basename
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then builtins.substring 33 (-1) basename
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else basename
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else builtins.throw "Don't know how to get (base)name of "
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+ lib.generators.toPretty { } p;
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# the leading hash as well to make sure that:
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# `storePathName drv == storePathName (toString drv)`.
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if noStoreDir == basename then builtins.substring 33 (-1) basename else basename
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else
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builtins.throw "Don't know how to get (base)name of " + lib.generators.toPretty { } p;
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/* Query the type of a path exposing the same information as would be by
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`builtins.readDir`, but for a single, specific target path.
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/*
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Query the type of a path exposing the same information as would be by
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`builtins.readDir`, but for a single, specific target path.
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The information is returned as a tagged value, i. e. an attribute set with
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exactly one attribute where the type of the path is encoded in the name
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of the single attribute. The allowed tags and values are as follows:
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The information is returned as a tagged value, i. e. an attribute set with
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exactly one attribute where the type of the path is encoded in the name
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of the single attribute. The allowed tags and values are as follows:
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* `regular`: is a regular file, always `true` if returned
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* `directory`: is a directory, always `true` if returned
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* `missing`: path does not exist, always `true` if returned
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* `symlink`: path is a symlink, always `true` if returned
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* `regular`: is a regular file, always `true` if returned
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* `directory`: is a directory, always `true` if returned
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* `missing`: path does not exist, always `true` if returned
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* `symlink`: path is a symlink, always `true` if returned
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Type: path(-like) -> tag
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Type: path(-like) -> tag
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`tag` refers to the attribute set format of `//nix/tag`.
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`tag` refers to the attribute set format of `//nix/tag`.
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Example:
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pathType ./foo.c
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=> { regular = true; }
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Example:
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pathType ./foo.c
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=> { regular = true; }
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pathType /home/lukas
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=> { directory = true; }
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pathType /home/lukas
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=> { directory = true; }
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pathType ./result
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=> { symlink = true; }
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pathType ./result
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=> { symlink = true; }
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pathType ./link-to-file
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=> { symlink = true; }
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pathType ./link-to-file
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=> { symlink = true; }
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pathType /does/not/exist
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=> { missing = true; }
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pathType /does/not/exist
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=> { missing = true; }
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# Check if a path exists
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!(pathType /file ? missing)
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# Check if a path exists
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!(pathType /file ? missing)
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# Check if a path is a directory or a symlink to a directory
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# A handy shorthand for this is provided as `realPathIsDirectory`.
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pathType /path ? directory || (pathType /path).symlink or null == "directory"
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# Check if a path is a directory or a symlink to a directory
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# A handy shorthand for this is provided as `realPathIsDirectory`.
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pathType /path ? directory || (pathType /path).symlink or null == "directory"
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# Match on the result using //nix/tag
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nix.tag.match (nix.utils.pathType ./result) {
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symlink = _: "symlink";
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directory = _: "directory";
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regular = _: "regular";
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missing = _: "path does not exist";
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}
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=> "symlink"
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# Match on the result using //nix/tag
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nix.tag.match (nix.utils.pathType ./result) {
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symlink = _: "symlink";
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directory = _: "directory";
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regular = _: "regular";
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missing = _: "path does not exist";
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}
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=> "symlink"
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# Query path type
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nix.tag.tagName (pathType /path)
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# Query path type
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nix.tag.tagName (pathType /path)
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*/
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pathType = path:
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pathType =
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path:
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let
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# baseNameOf is very annoyed if we proceed with string context.
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# We need to call toString to prevent unsafeDiscardStringContext
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@ -119,52 +118,56 @@ let
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${thisPathType} = true;
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};
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pathType' = path:
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pathType' =
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path:
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let
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p = pathType path;
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in
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if p ? missing
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then builtins.throw "${lib.generators.toPretty {} path} does not exist"
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else p;
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if p ? missing then builtins.throw "${lib.generators.toPretty { } path} does not exist" else p;
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/* Check whether the given path is a directory.
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Throws if the path in question doesn't exist.
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/*
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Check whether the given path is a directory.
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Throws if the path in question doesn't exist.
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Type: path(-like) -> bool
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Type: path(-like) -> bool
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*/
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isDirectory = path: pathType' path ? directory;
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/* Check whether the given path is a regular file.
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Throws if the path in question doesn't exist.
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/*
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Check whether the given path is a regular file.
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Throws if the path in question doesn't exist.
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Type: path(-like) -> bool
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Type: path(-like) -> bool
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*/
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isRegularFile = path: pathType' path ? regular;
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/* Check whether the given path is a symbolic link.
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Throws if the path in question doesn't exist.
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/*
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Check whether the given path is a symbolic link.
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Throws if the path in question doesn't exist.
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Type: path(-like) -> bool
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Type: path(-like) -> bool
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*/
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isSymlink = path: pathType' path ? symlink;
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/* Checks whether the given value is (or contains) a reference to a
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path that will be retained in the store path resulting from a derivation.
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So if isReferencablePath returns true, the given value may be used in a
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way that allows accessing it at runtime of any Nix built program.
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/*
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Checks whether the given value is (or contains) a reference to a
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path that will be retained in the store path resulting from a derivation.
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So if isReferencablePath returns true, the given value may be used in a
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way that allows accessing it at runtime of any Nix built program.
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Returns true for:
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Returns true for:
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- Strings with context (if the string is/contains a single path is not verified!)
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- Path values
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- Derivations
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- Strings with context (if the string is/contains a single path is not verified!)
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- Path values
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- Derivations
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Note that the value still needs to used in a way that forces string context
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(and thus reference tracking) to be created, e.g. in string interpolation.
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Note that the value still needs to used in a way that forces string context
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(and thus reference tracking) to be created, e.g. in string interpolation.
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Type: any -> bool
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Type: any -> bool
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*/
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isReferencablePath = value:
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isReferencablePath =
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value:
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builtins.isPath value
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|| lib.isDerivation value
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|| (builtins.isString value && builtins.hasContext value);
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