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https://github.com/SebastianWendel/nixpkgs.git
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Whenever we create scripts that are installed to $out, we must use runtimeShell in order to get the shell that can be executed on the machine we create the package for. This is relevant for cross-compiling. The only use case for stdenv.shell are scripts that are executed as part of the build system. Usages in checkPhase are borderline however to decrease the likelyhood of people copying the wrong examples, I decided to use runtimeShell as well.
79 lines
2.4 KiB
Nix
79 lines
2.4 KiB
Nix
{ pkgs, ctags }:
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with pkgs.stdenv.lib;
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# define some ctags wrappers adding support for some not that common languages
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# customization:
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# a) add stuff here
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# b) override asLang, phpLang, ... using packageOverrides
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# c) use ctagsWrapped.override {args = [ your liste ];}
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# install using -iA ctagsWrapped.ctagsWrapped
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{
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# the derivation. use language extensions specified by args
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ctagsWrapped = makeOverridable ( {args, name} : pkgs.writeScriptBin name ''
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#!${pkgs.runtimeShell}
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exec ${pkgs.ctags}/bin/ctags ${concatStringsSep " " (map escapeShellArg args)} "$@"
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'') {
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args = let x = pkgs.ctagsWrapped; in concatLists [
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x.defaultArgs x.phpLang x.jsLang x.nixLang x.asLang x.rubyLang
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];
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name = "${ctags.name}-wrapped";
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};
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### language arguments
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# don't scan version control directories
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defaultArgs = [
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"--exclude=\.svn"
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"--exclude=\.hg"
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"--exclude=\.git"
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"--exclude=\_darcs"
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"--sort=yes"
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];
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# actionscript
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asLang = [
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"--langdef=ActionScript"
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"--langmap=ActionScript:.as"
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"--regex-ActionScript=/function[ \\t]+([A-Za-z0-9_]+)[ \\t]*\\(/\1/f,function,functions/"
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"--regex-ActionScript=/function[ \\t]+(set|get)[ \\t]+([A-Za-z0-9_]+)[ \\t]*\\(/\2/p,property,properties/"
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"--regex-ActionScript=/interface[ \\t]+[a-z0-9_.]*([A-Z][A-Za-z0-9_]+)/\\1/i,interface,interfaces/"
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"--regex-ActionScript=/package[ \\t]+([^ \\t]*)/\\1/p/"
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"--regex-ActionScript=/class[ \\t]+[a-z0-9_.]*([A-Z][A-Za-z0-9_]+)/\\1/c,class,classes/"
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];
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# PHP
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phpLang = [
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"--langmap=PHP:.php"
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"--regex-PHP=/abstract class ([^ ]*)/\\1/c/"
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"--regex-PHP=/interface ([^ ]*)/\\1/i/"
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"--regex-PHP=/function[ \\t]+([^ (]*)/\\1/f/"
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];
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# Javascript: also find unnamed functions and funtions beeing passed within a dict.
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# the dict properties is used to implement duck typing in frameworks
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# var foo = function () { ... }
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# {
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# a : function () {}
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# only recognize names up 100 characters. Else you'll be in trouble scanning compressed .js files.
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jsLang = [
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"--regex-JavaScript=/([^ \\t]{1,100})[ \\t]*:[ \\t]*function[ \\t]*\\(/\\1/f/"
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];
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# find foo in "foo =", don't think we can do a lot better
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nixLang = [
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"--langdef=NIX"
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"--langmap=NIX:.nix"
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"--regex-NIX=/\([^ \\t*]*\)[ \\t]*=/\\1/f/"
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];
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rubyLang = [
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"--langmap=RUBY:.rb"
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"--regex-RUBY=/class ([^ ]*)/\\1/c/"
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"--regex-RUBY=/^[ ]*module[ ]*([^ ]*)/\\1/m/"
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];
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}
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