122 lines
3.9 KiB
Nix
122 lines
3.9 KiB
Nix
{ homeDirectory, lib, pkgs }:
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let
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inherit (lib)
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hasPrefix hm literalExpression mkDefault mkIf mkOption removePrefix types;
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in {
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# Constructs a type suitable for a `home.file` like option. The
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# target path may be either absolute or relative, in which case it
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# is relative the `basePath` argument (which itself must be an
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# absolute path).
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#
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# Arguments:
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# - opt the name of the option, for self-references
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# - basePathDesc docbook compatible description of the base path
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# - basePath the file base path
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fileType = opt: basePathDesc: basePath:
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types.attrsOf (types.submodule ({ name, config, ... }: {
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options = {
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enable = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Whether this file should be generated. This option allows specific
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files to be disabled.
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'';
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};
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target = mkOption {
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type = types.str;
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apply = p:
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let absPath = if hasPrefix "/" p then p else "${basePath}/${p}";
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in removePrefix (homeDirectory + "/") absPath;
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defaultText = literalExpression "name";
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description = ''
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Path to target file relative to ${basePathDesc}.
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'';
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};
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text = mkOption {
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default = null;
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type = types.nullOr types.lines;
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description = ''
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Text of the file. If this option is null then
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[](#opt-${opt}._name_.source)
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must be set.
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'';
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};
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source = mkOption {
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type = types.path;
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description = ''
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Path of the source file or directory. If
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[](#opt-${opt}._name_.text)
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is non-null then this option will automatically point to a file
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containing that text.
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'';
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};
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executable = mkOption {
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type = types.nullOr types.bool;
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default = null;
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description = ''
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Set the execute bit. If `null`, defaults to the mode
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of the {var}`source` file or to `false`
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for files created through the {var}`text` option.
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'';
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};
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recursive = mkOption {
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type = types.bool;
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default = false;
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description = ''
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If the file source is a directory, then this option
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determines whether the directory should be recursively
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linked to the target location. This option has no effect
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if the source is a file.
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If `false` (the default) then the target
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will be a symbolic link to the source directory. If
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`true` then the target will be a
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directory structure matching the source's but whose leafs
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are symbolic links to the files of the source directory.
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'';
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};
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onChange = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Shell commands to run when file has changed between
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generations. The script will be run
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*after* the new files have been linked
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into place.
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Note, this code is always run when `recursive` is
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enabled.
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'';
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};
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force = mkOption {
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type = types.bool;
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default = false;
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visible = false;
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description = ''
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Whether the target path should be unconditionally replaced
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by the managed file source. Warning, this will silently
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delete the target regardless of whether it is a file or
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link.
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'';
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};
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};
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config = {
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target = mkDefault name;
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source = mkIf (config.text != null) (mkDefault (pkgs.writeTextFile {
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inherit (config) text;
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executable = config.executable == true; # can be null
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name = hm.strings.storeFileName name;
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}));
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};
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}));
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}
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