8c4730c433
Change-Id: Ib1714abce2815873eb50dbeac088e812fa9098ab Reviewed-on: https://cl.tvl.fyi/c/depot/+/8686 Tested-by: BuildkiteCI Reviewed-by: Profpatsch <mail@profpatsch.de> Autosubmit: Profpatsch <mail@profpatsch.de>
81 lines
2.3 KiB
Nix
81 lines
2.3 KiB
Nix
{ depot, pkgs, lib, ... }:
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let
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# Add the given nix arguments to the program as ARGLIB_NETENCODE envvar
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#
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# Calls `netencode.gen.dwim` on the provided nix args value.
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with-args = name: args: prog: depot.nix.writeExecline "${name}-with-args" { } [
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"export"
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"ARGLIB_NETENCODE"
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(depot.users.Profpatsch.netencode.gen.dwim args)
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prog
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];
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rust = depot.nix.writers.rustSimpleLib
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{
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name = "arglib-netencode";
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dependencies = [
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depot.users.Profpatsch.execline.exec-helpers
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depot.users.Profpatsch.netencode.netencode-rs
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];
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} ''
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extern crate netencode;
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extern crate exec_helpers;
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use netencode::{T};
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use std::os::unix::ffi::OsStrExt;
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pub fn arglib_netencode(prog_name: &str, env: Option<&std::ffi::OsStr>) -> T {
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let env = match env {
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None => std::ffi::OsStr::from_bytes("ARGLIB_NETENCODE".as_bytes()),
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Some(a) => a
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};
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let t = match std::env::var_os(env) {
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None => exec_helpers::die_user_error(prog_name, format!("could not read args, envvar {} not set", env.to_string_lossy())),
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// TODO: good error handling for the different parser errors
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Some(soup) => match netencode::parse::t_t(soup.as_bytes()) {
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Ok((remainder, t)) => match remainder.is_empty() {
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true => t,
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false => exec_helpers::die_environment_problem(prog_name, format!("arglib: there was some unparsed bytes remaining: {:?}", remainder))
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},
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Err(err) => exec_helpers::die_environment_problem(prog_name, format!("arglib parsing error: {:?}", err))
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}
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};
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std::env::remove_var(env);
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t
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}
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'';
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haskell = pkgs.haskellPackages.mkDerivation {
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pname = "arglib-netencode";
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version = "0.1.0";
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src = depot.users.Profpatsch.exactSource ./. [
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./arglib-netencode.cabal
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./ArglibNetencode.hs
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];
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libraryHaskellDepends = [
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pkgs.haskellPackages.pa-prelude
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pkgs.haskellPackages.pa-label
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pkgs.haskellPackages.pa-error-tree
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depot.users.Profpatsch.netencode.netencode-hs
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depot.users.Profpatsch.execline.exec-helpers-hs
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];
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isLibrary = true;
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license = lib.licenses.mit;
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};
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in
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depot.nix.readTree.drvTargets {
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inherit
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with-args
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rust
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haskell
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;
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}
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