filter package results in python script

Author: considerate

flake.nix

@@ -42,7 +42,7 @@
         drvs = pkgs.lib.mapAttrs (_: pkg: { inherit (pkg) drvPath version isLocal; }) purenix-pkgs.prelude.package-set;
       in
       {
-        hello = drvs;
+        inherit drvs;
         packages = purenix-pkgs // { inherit all-packages package-set; };
         apps = { };
         devShells = {

package-set.sh

@@ -1 +1 @@
-python success.py | jq 'to_entries | map(select(.value.success==true)) | map({key: .key, value: .value.derivation.version}) | from_entries'
+python success.py | jq .

success.py

@@ -1,13 +1,19 @@
 import json
 import subprocess
 import sys
+from datetime import datetime
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('--system', type=str, default='x86_64-linux')
+args = parser.parse_args()
 
 with open("flake.lock", "r") as f:
     lockfile = json.load(f)
 locked = lockfile['nodes']['purenix-base']['locked']
 repo = f'https://github.com/{locked["owner"]}/{locked["repo"]}.git'
 ref = locked["rev"]
-result = subprocess.Popen(["nix", "eval", ".#hello.x86_64-linux", "--json"], stdout=subprocess.PIPE).stdout.read()
+result = subprocess.Popen(["nix", "eval", f".#drvs.{args.system}", "--json"], stdout=subprocess.PIPE).stdout.read()
 package_set = json.loads(result)
 derivations = list(p['drvPath'] for p in package_set.values())
 build_results = subprocess.Popen(["nix-build-results"] + derivations, stdout=subprocess.PIPE).stdout.read()
@@ -19,5 +25,12 @@ def update_version(name, value, subdir):
         return value | {'version': {'git': repo, 'ref': ref, 'subdir': subdir}}
     else:
         return value
-final = {k: res[v['drvPath']] | {"derivation": update_version(k, v, f'purescript-{k}')} for k, v in package_set.items()}
-print(json.dumps(final))
+named = {k: res[v['drvPath']] | {"derivation": update_version(k, v, f'purescript-{k}')} for k, v in package_set.items()}
+final = {k: v['derivation']['version'] for k, v in named.items() if v['success'] == True}
+today = datetime.today().strftime('%Y-%m-%d')
+output = {
+    'packages': final,
+    'compiler': '0.15.7',
+    'published': today,
+}
+print(json.dumps(output))