59 lines
1.5 KiB
Nix
59 lines
1.5 KiB
Nix
pkgs: {extraArgs, entries, templates}: let
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inherit (pkgs) lib;
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inherit (builtins) abort dirOf;
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inherit (lib.lists) forEach findFirst;
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inherit (lib.strings) concatMapStrings concatStrings escapeShellArg isString;
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inherit (lib.trivial) functionArgs;
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args = {inherit pkgs;}
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// (import ./stdlib.nix pkgs)
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// extraArgs;
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findTemplateFile = entry:
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findFirst (templateFile: let
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templateFn = import templateFile;
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template = templateFn (functionArgs templateFn);
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in
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template.name == entry.template)
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null
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templates;
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applyTemplate = entry: templateFile: let
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templateFn = import templateFile;
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template = templateFn (args // entry);
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in
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if (isString template.output)
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then {
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inherit (entry) file;
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inherit (template) output;
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}
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else let
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newEntry = template.output;
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foundTemplateFile = findTemplateFile newEntry;
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in
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if foundTemplateFile == null then
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abort "template `${newEntry.template}` not found"
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else
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applyTemplate newEntry foundTemplateFile;
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processEntryFile = entryFile: let
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entryFn = import entryFile;
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entry = entryFn args;
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foundTemplateFile = findTemplateFile entry;
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in
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if foundTemplateFile == null then
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abort "template ${entry.template} not found"
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else
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applyTemplate entry foundTemplateFile;
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in /*sh*/''
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${concatMapStrings
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(result: /*sh*/''
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mkdir -p $out/${dirOf result.file}
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echo ${escapeShellArg result.output} > $out/${result.file}
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'')
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(forEach entries processEntryFile)
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}
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''
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