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nix-darwin/modules/lib/write-text.nix
Daiderd Jordan b22481d03a
etc: allow replacing files with known content
This enables replacing existing system files like /etc/bashrc by default
while keeping the safer behaviour for other files like /etc/passwd, etc.
that could potentially cause major problems for the system when replaced.
2020-06-17 19:23:31 +02:00

60 lines
1 KiB
Nix

{ lib, mkTextDerivation }:
{ config, name, ... }:
with lib;
let
fileName = file: last (splitString "/" file);
mkDefaultIf = cond: value: mkIf cond (mkDefault value);
drv = mkTextDerivation (fileName name) config.text;
in
{
options = {
enable = mkOption {
type = types.bool;
default = true;
description = ''
Whether this file should be generated.
This option allows specific files to be disabled.
'';
};
text = mkOption {
type = types.lines;
default = "";
description = ''
Text of the file.
'';
};
target = mkOption {
type = types.str;
default = name;
description = ''
Name of symlink. Defaults to the attribute name.
'';
};
source = mkOption {
type = types.path;
description = ''
Path of the source file.
'';
};
knownSha256Hashes = mkOption {
internal = true;
type = types.listOf types.str;
default = [];
};
};
config = {
source = mkDefault drv;
};
}