pkgs.haskell.package-list: init

This commit introduces a maintainer script to upload our current list of
haskell-packages to hackage.

2 files changed, 27 insertions, 0 deletions

diff --git a/pkgs/development/haskell-modules/HACKING.md b/pkgs/development/haskell-modules/HACKING.md
index 37bd5544fe1..98ab03a0edd 100644
--- a/pkgs/development/haskell-modules/HACKING.md
+++ b/pkgs/development/haskell-modules/HACKING.md
@@ -241,6 +241,14 @@ When you've double-checked these points, go ahead and merge the `haskell-updates
 After merging, **make sure not to delete the `haskell-updates` branch**, since it
 causes all currently open Haskell-related pull-requests to be automatically closed on GitHub.
 
+## Update Hackage Version Information
+
+After merging into master you can update what hackage displays as the current
+version in NixOS for every individual package.
+To do this you run `maintainers/scripts/haskell/upload-nixos-package-list-to-hackage.sh`.
+See the script for how to provide credentials. Once you have configured that
+running this takes only a few seconds.
+
 ## Additional Info
 
 Here are some additional tips that didn't fit in above.
diff --git a/pkgs/development/haskell-modules/package-list.nix b/pkgs/development/haskell-modules/package-list.nix
new file mode 100644
index 00000000000..64f4be3a772
--- /dev/null
+++ b/pkgs/development/haskell-modules/package-list.nix
@@ -0,0 +1,19 @@
+{ runCommand, haskellPackages, lib, all-cabal-hashes, writeShellScript }:
+let
+  pkgLine = name: pkg:
+    let
+      version = pkg.version or "";
+    in
+    if version != "" then
+      ''"${name}","${version}","http://hydra.nixos.org/job/nixpkgs/trunk/haskellPackages.${name}.x86_64-linux"''
+    else "";
+  all-haskellPackages = builtins.toFile "all-haskellPackages" (lib.concatStringsSep "\n" (lib.filter (x: x != "") (lib.mapAttrsToList pkgLine haskellPackages)));
+in
+runCommand "hackage-package-list" { }
+  # This command will make a join between all packages on hackage and haskellPackages.*.
+  # It creates a valid csv file which can be uploaded to hackage.haskell.org.
+  # The call is wrapped in echo $(...) to trim trailing newline, which hackage requires.
+  ''
+    mkdir -p $out/bin
+    echo -n "$(tar -t -f ${all-cabal-hashes} | sed 's![^/]*/\([^/]*\)/.*!"\1"!' | sort -u | join -t , - ${all-haskellPackages})" > $out/nixos-hackage-packages.csv
+  ''