Add shell env to buildHex packages.
This adds erlangPackages.${name}.env, which is usable to launch a shell
with the package and it's dependencies like this:
nix-shell -A erlangPackages.lager.env
This required:
1) refactoring buildHex to become a fixed-point function,
2) moves output of a package into $out/${name},
3) introduces erlEnv (buildEnv, which links in package and it's deps
into one directory - a super-simple plagiarization of
haskellPackages.compiler.ghcWithPackages) and
4) shell function producing a un-buildable derivation to be used by
nix-shell
This commit is contained in:
Gleb Peregud
parent
b3b7f9f37f
commit
d7e17c2e71
@ -1,3 +1,6 @@
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# This file is not used not tested at this time, build-hex.nix is the currently
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# main vehicle of bringing Erlang packages in.
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{ stdenv, erlang, rebar, openssl, libyaml }:
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{ name, version
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@ -1,5 +1,5 @@
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{ stdenv, erlang, rebar3, openssl, libyaml, fetchHex, fetchFromGitHub,
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rebar3-pc }:
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rebar3-pc, buildEnv }:
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{ name, version, sha256
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, hexPkg ? name
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@ -11,79 +11,99 @@
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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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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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buildInputs = buildInputs ++ [ erlang rebar3 openssl libyaml ];
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src = fetchHex {
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pkg = hexPkg;
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inherit version;
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inherit sha256;
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erlEnv = drv: buildEnv {
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name = "erlang-env-${drv.name}";
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paths = [ drv ] ++ recursiveDeps;
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ignoreCollisions = false;
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meta = drv.meta;
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};
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postPatch = ''
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rm -f rebar rebar3
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if [ -e "src/${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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${if compilePorts then ''
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echo "{plugins, [pc]}." >> rebar.config
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'' else ''''}
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${rebar3.setupRegistry}
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${postPatch}
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'';
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configurePhase = let
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plugins = pluginDeps ++ (if compilePorts then [rebar3-pc] else []);
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getDeps = drv: [drv] ++ (map getDeps drv.erlangDeps);
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recursiveDeps = unique (flatten (map getDeps erlangDeps));
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recursivePluginsDeps = unique (flatten (map getDeps plugins));
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in ''
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runHook preConfigure
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${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/${dep.packageName}"
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stopNest
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'') recursivePluginsDeps}
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runHook postConfigure
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'';
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buildPhase = ''
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runHook preBuild
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HOME=. rebar3 compile
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${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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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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shell = drv: let
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drvEnv = erlEnv drv;
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in stdenv.mkDerivation {
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name = "interactive-shell-${drv.name}";
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nativeBuildInputs = [ erlang drvEnv ];
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shellHook = ''
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export ERL_LIBS="${drvEnv}";
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'';
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};
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})
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pkg = self: stdenv.mkDerivation (attrs // {
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name = "${name}-${version}";
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buildInputs = buildInputs ++ [ erlang rebar3 openssl libyaml ];
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src = fetchHex {
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pkg = hexPkg;
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inherit version;
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inherit sha256;
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};
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postPatch = ''
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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/${name}.app.src"
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fi
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${if compilePorts then ''
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echo "{plugins, [pc]}." >> rebar.config
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'' else ''''}
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${rebar3.setupRegistry}
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${postPatch}
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'';
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configurePhase = ''
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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}/${dep.name}" "_build/default/lib/${dep.name}"
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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}/${dep.name}" "_build/default/plugins/${dep.name}"
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stopNest
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'') recursivePluginsDeps}
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runHook postConfigure
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'';
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buildPhase = ''
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runHook preBuild
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HOME=. rebar3 compile
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${if compilePorts then ''
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HOME=. rebar3 pc compile
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'' else ''''}
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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mkdir -p "$out/${name}"
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for reldir in src ebin priv include; do
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fd="_build/default/lib/${name}/$reldir"
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[ -d "$fd" ] || continue
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cp -Hrt "$out/${name}" "$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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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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env = shell self;
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inherit erlangDeps;
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};
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});
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in
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fix pkg
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