101 lines
2.6 KiB
Nix
101 lines
2.6 KiB
Nix
{ stdenv, erlang, rebar3, openssl, libyaml, fetchurl, fetchFromGitHub,
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rebar3-pc }:
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{ name, version, sha256
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, hexPkg ? name
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, buildInputs ? [], erlangDeps ? [], pluginDeps ? []
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, postPatch ? ""
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, compilePorts ? false
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, meta ? {}
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, ... }@attrs:
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with stdenv.lib;
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stdenv.mkDerivation (attrs // {
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name = "${name}-${version}";
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buildInputs = buildInputs ++ [ erlang rebar3 openssl libyaml ];
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postPatch = let
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registrySnapshot = import ./registrySnapshot.nix { inherit fetchFromGitHub; };
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in ''
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rm -f rebar rebar3
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if [ -e "src/${name}.app.src" ]; then
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sed -i -e 's/{ *vsn *,[^}]*}/{vsn, "${version}"}/' "src/${name}.app.src"
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fi
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# TODO: figure out how to provide 'pc' plugin hermetically
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${if compilePorts then ''
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echo "{plugins, [pc]}." >> rebar.config
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'' else ''''}
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mkdir -p _build/default/{lib,plugins}/ ./.cache/rebar3/hex/default/
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zcat ${registrySnapshot}/registry.ets.gz > .cache/rebar3/hex/default/registry
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${postPatch}
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'';
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unpackCmd = ''
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tar -xf $curSrc contents.tar.gz
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mkdir contents
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tar -C contents -xzf contents.tar.gz
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'';
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configurePhase = let
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plugins = pluginDeps ++ (if compilePorts then [rebar3-pc] else []);
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getDeps = drv: [drv] ++ (map getDeps drv.erlangDeps);
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recursiveDeps = unique (flatten (map getDeps erlangDeps));
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recursivePluginsDeps = unique (flatten (map getDeps plugins));
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in ''
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runHook preConfigure
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${concatMapStrings (dep: ''
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header "linking erlang dependency ${dep}"
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ln -s "${dep}" "_build/default/lib/${dep.packageName}"
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stopNest
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'') recursiveDeps}
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${concatMapStrings (dep: ''
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header "linking rebar3 plugins ${dep}"
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ln -s "${dep}" "_build/default/plugins/${dep.packageName}"
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stopNest
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'') recursivePluginsDeps}
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runHook postConfigure
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'';
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# TODO: figure out how to provide rebar3 a static registry snapshot to make
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# this hermetic
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buildPhase = ''
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runHook preBuild
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HOME=. rebar3 compile
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${if compilePorts then ''
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HOME=. rebar3 pc compile
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'' else ''''}
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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mkdir "$out"
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for reldir in src ebin priv include; do
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fd="_build/default/lib/${name}/$reldir"
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[ -d "$fd" ] || continue
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cp -Hrt "$out" "$fd"
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success=1
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done
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runHook postInstall
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'';
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src = fetchurl {
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url = "https://s3.amazonaws.com/s3.hex.pm/tarballs/${hexPkg}-${version}.tar";
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sha256 = sha256;
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};
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meta = {
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inherit (erlang.meta) platforms;
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} // meta;
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passthru = {
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packageName = name;
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inherit erlangDeps;
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};
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})
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