309 lines
10 KiB
Nix
309 lines
10 KiB
Nix
{ pkgs, lib, gawk, gnused, gixy }:
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with lib;
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rec {
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# Base implementation for non-compiled executables.
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# Takes an interpreter, for example `${pkgs.bash}/bin/bash`
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#
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# Examples:
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# writeBash = makeScriptWriter { interpreter = "${pkgs.bash}/bin/bash"; }
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# makeScriptWriter { interpreter = "${pkgs.dash}/bin/dash"; } "hello" "echo hello world"
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makeScriptWriter = { interpreter, check ? "" }: nameOrPath: content:
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assert lib.or (types.path.check nameOrPath) (builtins.match "([0-9A-Za-z._])[0-9A-Za-z._-]*" nameOrPath != null);
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assert lib.or (types.path.check content) (types.str.check content);
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let
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name = last (builtins.split "/" nameOrPath);
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in
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pkgs.runCommandLocal name (if (types.str.check content) then {
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inherit content interpreter;
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passAsFile = [ "content" ];
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} else {
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inherit interpreter;
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contentPath = content;
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}) ''
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# On darwin a script cannot be used as an interpreter in a shebang but
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# there doesn't seem to be a limit to the size of shebang and multiple
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# arguments to the interpreter are allowed.
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if [[ -n "${toString pkgs.stdenvNoCC.isDarwin}" ]] && isScript $interpreter
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then
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wrapperInterpreterLine=$(head -1 "$interpreter" | tail -c+3)
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# Get first word from the line (note: xargs echo remove leading spaces)
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wrapperInterpreter=$(echo "$wrapperInterpreterLine" | xargs echo | cut -d " " -f1)
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if isScript $wrapperInterpreter
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then
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echo "error: passed interpreter ($interpreter) is a script which has another script ($wrapperInterpreter) as an interpreter, which is not supported."
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exit 1
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fi
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# This should work as long as wrapperInterpreter is a shell, which is
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# the case for programs wrapped with makeWrapper, like
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# python3.withPackages etc.
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interpreterLine="$wrapperInterpreterLine $interpreter"
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else
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interpreterLine=$interpreter
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fi
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echo "#! $interpreterLine" > $out
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cat "$contentPath" >> $out
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${optionalString (check != "") ''
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${check} $out
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''}
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chmod +x $out
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${optionalString (types.path.check nameOrPath) ''
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mv $out tmp
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mkdir -p $out/$(dirname "${nameOrPath}")
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mv tmp $out/${nameOrPath}
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''}
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'';
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# Base implementation for compiled executables.
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# Takes a compile script, which in turn takes the name as an argument.
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#
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# Examples:
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# writeSimpleC = makeBinWriter { compileScript = name: "gcc -o $out $contentPath"; }
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makeBinWriter = { compileScript }: nameOrPath: content:
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assert lib.or (types.path.check nameOrPath) (builtins.match "([0-9A-Za-z._])[0-9A-Za-z._-]*" nameOrPath != null);
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assert lib.or (types.path.check content) (types.str.check content);
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let
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name = last (builtins.split "/" nameOrPath);
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in
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pkgs.runCommand name (if (types.str.check content) then {
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inherit content;
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passAsFile = [ "content" ];
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} else {
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contentPath = content;
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}) ''
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${compileScript}
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${optionalString (types.path.check nameOrPath) ''
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mv $out tmp
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mkdir -p $out/$(dirname "${nameOrPath}")
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mv tmp $out/${nameOrPath}
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''}
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'';
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# Like writeScript but the first line is a shebang to bash
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#
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# Example:
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# writeBash "example" ''
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# echo hello world
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# ''
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writeBash = makeScriptWriter {
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interpreter = "${pkgs.bash}/bin/bash";
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};
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# Like writeScriptBIn but the first line is a shebang to bash
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writeBashBin = name:
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writeBash "/bin/${name}";
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# writeC writes an executable c package called `name` to `destination` using `libraries`.
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#
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# Examples:
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# writeC "hello-world-ncurses" { libraries = [ pkgs.ncurses ]; } ''
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# #include <ncurses.h>
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# int main() {
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# initscr();
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# printw("Hello World !!!");
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# refresh(); endwin();
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# return 0;
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# }
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# ''
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writeC = name: { libraries ? [] }:
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makeBinWriter {
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compileScript = ''
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PATH=${makeBinPath [
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pkgs.binutils-unwrapped
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pkgs.coreutils
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pkgs.findutils
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pkgs.gcc
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pkgs.pkgconfig
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]}
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export PKG_CONFIG_PATH=${concatMapStringsSep ":" (pkg: "${pkg}/lib/pkgconfig") libraries}
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gcc \
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${optionalString (libraries != [])
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"$(pkg-config --cflags --libs ${
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concatMapStringsSep " " (pkg: "$(find ${escapeShellArg pkg}/lib/pkgconfig -name \\*.pc)") libraries
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})"
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} \
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-O \
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-o "$out" \
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-Wall \
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-x c \
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"$contentPath"
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strip --strip-unneeded "$out"
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'';
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} name;
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# writeCBin takes the same arguments as writeC but outputs a directory (like writeScriptBin)
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writeCBin = name:
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writeC "/bin/${name}";
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# Like writeScript but the first line is a shebang to dash
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#
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# Example:
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# writeDash "example" ''
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# echo hello world
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# ''
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writeDash = makeScriptWriter {
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interpreter = "${pkgs.dash}/bin/dash";
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};
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# Like writeScriptBin but the first line is a shebang to dash
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writeDashBin = name:
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writeDash "/bin/${name}";
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# writeHaskell takes a name, an attrset with libraries and haskell version (both optional)
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# and some haskell source code and returns an executable.
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#
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# Example:
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# writeHaskell "missiles" { libraries = [ pkgs.haskellPackages.acme-missiles ]; } ''
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# import Acme.Missiles
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#
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# main = launchMissiles
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# '';
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writeHaskell = name: {
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libraries ? [],
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ghc ? pkgs.ghc,
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ghcArgs ? []
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}:
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makeBinWriter {
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compileScript = ''
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cp $contentPath tmp.hs
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${ghc.withPackages (_: libraries )}/bin/ghc ${lib.escapeShellArgs ghcArgs} tmp.hs
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mv tmp $out
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${pkgs.binutils-unwrapped}/bin/strip --strip-unneeded "$out"
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'';
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} name;
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# writeHaskellBin takes the same arguments as writeHaskell but outputs a directory (like writeScriptBin)
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writeHaskellBin = name:
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writeHaskell "/bin/${name}";
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# writeJS takes a name an attributeset with libraries and some JavaScript sourcecode and
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# returns an executable
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#
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# Example:
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# writeJS "example" { libraries = [ pkgs.nodePackages.uglify-js ]; } ''
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# var UglifyJS = require("uglify-js");
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# var code = "function add(first, second) { return first + second; }";
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# var result = UglifyJS.minify(code);
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# console.log(result.code);
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# ''
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writeJS = name: { libraries ? [] }: content:
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let
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node-env = pkgs.buildEnv {
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name = "node";
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paths = libraries;
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pathsToLink = [
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"/lib/node_modules"
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];
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};
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in writeDash name ''
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export NODE_PATH=${node-env}/lib/node_modules
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exec ${pkgs.nodejs}/bin/node ${pkgs.writeText "js" content}
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'';
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# writeJSBin takes the same arguments as writeJS but outputs a directory (like writeScriptBin)
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writeJSBin = name:
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writeJS "/bin/${name}";
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awkFormatNginx = builtins.toFile "awkFormat-nginx.awk" ''
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awk -f
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{sub(/^[ \t]+/,"");idx=0}
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/\{/{ctx++;idx=1}
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/\}/{ctx--}
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{id="";for(i=idx;i<ctx;i++)id=sprintf("%s%s", id, "\t");printf "%s%s\n", id, $0}
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'';
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writeNginxConfig = name: text: pkgs.runCommandLocal name {
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inherit text;
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passAsFile = [ "text" ];
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nativeBuildInputs = [ gawk gnused gixy ];
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} /* sh */ ''
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# nginx-config-formatter has an error - https://github.com/1connect/nginx-config-formatter/issues/16
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awk -f ${awkFormatNginx} "$textPath" | sed '/^\s*$/d' > $out
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gixy $out
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'';
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# writePerl takes a name an attributeset with libraries and some perl sourcecode and
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# returns an executable
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#
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# Example:
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# writePerl "example" { libraries = [ pkgs.perlPackages.boolean ]; } ''
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# use boolean;
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# print "Howdy!\n" if true;
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# ''
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writePerl = name: { libraries ? [] }:
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let
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perl-env = pkgs.buildEnv {
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name = "perl-environment";
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paths = libraries;
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pathsToLink = [
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"/${pkgs.perl.libPrefix}"
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];
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};
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in
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makeScriptWriter {
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interpreter = "${pkgs.perl}/bin/perl -I ${perl-env}/${pkgs.perl.libPrefix}";
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} name;
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# writePerlBin takes the same arguments as writePerl but outputs a directory (like writeScriptBin)
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writePerlBin = name:
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writePerl "/bin/${name}";
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# makePythonWriter takes python and compatible pythonPackages and produces python script writer,
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# which validates the script with flake8 at build time. If any libraries are specified,
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# python.withPackages is used as interpreter, otherwise the "bare" python is used.
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makePythonWriter = python: pythonPackages: name: { libraries ? [], flakeIgnore ? [] }:
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let
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ignoreAttribute = optionalString (flakeIgnore != []) "--ignore ${concatMapStringsSep "," escapeShellArg flakeIgnore}";
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in
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makeScriptWriter {
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interpreter =
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if libraries == []
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then "${python}/bin/python"
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else "${python.withPackages (ps: libraries)}/bin/python"
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;
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check = writeDash "python2check.sh" ''
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exec ${pythonPackages.flake8}/bin/flake8 --show-source ${ignoreAttribute} "$1"
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'';
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} name;
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# writePython2 takes a name an attributeset with libraries and some python2 sourcecode and
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# returns an executable
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#
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# Example:
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# writePython2 "test_python2" { libraries = [ pkgs.python2Packages.enum ]; } ''
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# from enum import Enum
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#
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# class Test(Enum):
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# a = "success"
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#
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# print Test.a
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# ''
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writePython2 = makePythonWriter pkgs.python2 pkgs.python2Packages;
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# writePython2Bin takes the same arguments as writePython2 but outputs a directory (like writeScriptBin)
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writePython2Bin = name:
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writePython2 "/bin/${name}";
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# writePython3 takes a name an attributeset with libraries and some python3 sourcecode and
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# returns an executable
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#
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# Example:
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# writePython3 "test_python3" { libraries = [ pkgs.python3Packages.pyyaml ]; } ''
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# import yaml
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#
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# y = yaml.load("""
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# - test: success
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# """)
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# print(y[0]['test'])
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# ''
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writePython3 = makePythonWriter pkgs.python3 pkgs.python3Packages;
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# writePython3Bin takes the same arguments as writePython3 but outputs a directory (like writeScriptBin)
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writePython3Bin = name:
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writePython3 "/bin/${name}";
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}
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