2d28753c4c
Introduces the `execlineb-with-builtins` flag, which when true (default) will add all execline builtins to the PATH of `execlineb`. This is usually what users expect. If the flag is set to `false`, the unpatched execline derivation is returned instead.
91 lines
2.7 KiB
Nix
91 lines
2.7 KiB
Nix
{ lib, skawarePackages
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# for execlineb-with-builtins
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, coreutils, gnugrep, writeScriptBin, runCommand
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# Whether to wrap bin/execlineb to have the execline tools on its PATH.
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, execlineb-with-builtins ? true
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}:
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with skawarePackages;
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let
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outputs = [ "bin" "lib" "dev" "doc" "out" ];
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execline =
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buildPackage {
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pname = "execline";
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version = "2.5.1.0";
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sha256 = "0xr6yb50wm6amj1wc7jmxyv7hvlx2ypbnww1vc288j275625d9xi";
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description = "A small scripting language, to be used in place of a shell in non-interactive scripts";
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inherit outputs;
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# TODO: nsss support
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configureFlags = [
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"--libdir=\${lib}/lib"
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"--dynlibdir=\${lib}/lib"
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"--bindir=\${bin}/bin"
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"--includedir=\${dev}/include"
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"--with-sysdeps=${skalibs.lib}/lib/skalibs/sysdeps"
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"--with-include=${skalibs.dev}/include"
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"--with-lib=${skalibs.lib}/lib"
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"--with-dynlib=${skalibs.lib}/lib"
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];
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postInstall = ''
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# remove all execline executables from build directory
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rm $(find -type f -mindepth 1 -maxdepth 1 -executable)
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rm libexecline.*
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mv doc $doc/share/doc/execline/html
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mv examples $doc/share/doc/execline/examples
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'';
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};
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# a wrapper around execlineb, which provides all execline
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# tools on `execlineb`’s PATH.
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execlineb-with-builtins-drv =
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let eldir = "${execline}/bin";
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in writeScriptBin "execlineb" ''
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#!${eldir}/execlineb -s0
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# appends the execlineb bin dir to PATH if not yet in PATH
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${eldir}/define eldir ${eldir}
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''${eldir}/ifelse
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{
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# since this is nix, we can grep for the execline drv hash in PATH
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# to see whether it’s already in there
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''${eldir}/pipeline
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{ ${coreutils}/bin/printenv PATH }
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${gnugrep}/bin/grep --quiet "${eldir}"
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}
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# it’s there already
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{ ''${eldir}/execlineb $@ }
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# not there yet, add it
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''${eldir}/importas oldpath PATH
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''${eldir}/export PATH "''${eldir}:''${oldpath}"
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''${eldir}/execlineb $@
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'';
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# the original execline package, with bin/execlineb overwritten
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execline-with-builtins = runCommand "my-execline"
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(execline.drvAttrs // {
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preferLocalBuild = true;
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allowSubstitutes = false;
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})
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# copy every output and just overwrite the execlineb binary in $bin
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''
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${lib.concatMapStringsSep "\n"
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(output: ''
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cp -r ${execline.${output}} "''$${output}"
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chmod --recursive +w "''$${output}"
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'')
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outputs}
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install ${execlineb-with-builtins-drv}/bin/execlineb $bin/bin/execlineb
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'';
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in
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if execlineb-with-builtins
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then execline-with-builtins
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else execline
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