Add flake packages (#15)

* add flake packages
* add solcPackages collection

.github/workflows/ci.yml

@@ -27,8 +27,15 @@ jobs:
       - name: Test Default Shell
         run: |
           set -x
+
+          # test `nix develop`
           nix develop .# --command -- bash -c "solc-0.8.26 --version"
-          # overriding flake input is needed as a workaround to local sub flake with overlapping paths.
+
+          # test `nix shell`
+          nix shell .#solc_0_8_19
+
+          # test solc.nix as input to other flakes
+          # Note: overriding flake input is needed as a workaround to local sub flake with overlapping paths.
           nix develop ./test/.# --override-input solc $PWD --command -- bash -c "solc --version"
           nix develop ./test/.# --override-input solc $PWD --command -- bash -c "solc-0.8.26 --version"
   ci-check-success:

README.md

@@ -64,6 +64,7 @@ Version: 0.8.19+commit.7dd6d404.Linux.g++
 You can also use `nix shell` directly without having to write a nix flake for a project.
 
 ```
+# Solc packages are listed as "solc_{version}" directly,
 nix shell github:hellwolf/solc.nix#solc_0_4_26 github:hellwolf/solc.nix#solc_0_8_19
 ```
 

flake.nix

@@ -39,6 +39,10 @@
         {
           # default shell with the latest solc compiler
           devShells.default = pkgs.mkShell { buildInputs = [ pkgs.solc_0_8_26 ]; };
+
+          # export all solc packages
+          packages = pkgs.solcPackages;
+          solcPackages = pkgs.solcPackages;
         }
       )
     // {

mk-solc-pkgs.nix

@@ -1,18 +1,21 @@
 pkgs:
 { solc-macos-amd64-list }:
 
-builtins.foldl' (
-  all_binaries: binary:
-  let
-    pname = "solc_" + (builtins.replaceStrings [ "." ] [ "_" ] binary.version);
-    maybeSolc = import ./mk-solc-static-pkg.nix (
-      pkgs
-      // {
-        solc_ver = binary.version;
-        solc_sha256 = binary.sha256;
-        inherit solc-macos-amd64-list;
-      }
-    );
-  in
-  if maybeSolc != null then all_binaries // { "${pname}" = maybeSolc; } else all_binaries
-) { } (import ./solc-listing.nix)
+let
+  solcPackages = builtins.foldl' (
+    allBinaries: binary:
+    let
+      pname = "solc_" + (builtins.replaceStrings [ "." ] [ "_" ] binary.version);
+      maybeSolc = import ./mk-solc-static-pkg.nix (
+        pkgs
+        // {
+          solc_ver = binary.version;
+          solc_sha256 = binary.sha256;
+          inherit solc-macos-amd64-list;
+        }
+      );
+    in
+    if maybeSolc != null then allBinaries // { "${pname}" = maybeSolc; } else allBinaries
+  ) { } (import ./solc-listing.nix);
+in
+solcPackages // { inherit solcPackages; }