From 768aa24eeb1c9606fa214bf0aa57315814c04f5e Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Mon, 29 Mar 2021 19:24:55 -0600
Subject: homebrew time

---
 repos/__init__.py |  3 ++-
 repos/homebrew.py | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 repos/homebrew.py

diff --git a/repos/__init__.py b/repos/__init__.py
index c836861..005dcf8 100644
--- a/repos/__init__.py
+++ b/repos/__init__.py
@@ -1,6 +1,6 @@
 from typing import Mapping, List
 
-from . import alpine_linux, arch_linux, crates_io
+from . import alpine_linux, arch_linux, crates_io, homebrew
 from .base import Repository, slug, Version
 
 __all__ = [
@@ -17,6 +17,7 @@ all_repos: List[Repository] = [
     *repos_from(alpine_linux),
     *repos_from(arch_linux),
     *repos_from(crates_io),
+    *repos_from(homebrew),
 ]
 
 def get_versions(package: str, args: Mapping[str, str]) -> Mapping[str, Version]:
diff --git a/repos/homebrew.py b/repos/homebrew.py
new file mode 100644
index 0000000..77dc05b
--- /dev/null
+++ b/repos/homebrew.py
@@ -0,0 +1,51 @@
+import json
+from pathlib import Path
+from typing import Mapping
+
+from .base import Repository, Version
+
+__all__ = [
+    'core',
+    'linux',
+    'cask',
+]
+
+def parse_cached(cached: Path) -> Mapping[str, Version]:
+    with cached.open('r') as json_file:
+        formulae = json.load(json_file)
+    result = dict()
+    for formula in formulae:
+        if 'full_name' in formula:
+            name = formula['full_name']
+        elif 'full_token' in formula:
+            name = formula['full_token']
+        else:
+            print('no name', formula)
+            raise ValueError()
+        if 'version' in formula:
+            version = formula['version']
+        elif 'versions' in formula:
+            versions = formula['versions']
+            if 'stable' in versions:
+                version = versions['stable']
+            else:
+                print('no stable versions', versions)
+                raise ValueError()
+        else:
+            print('no versions??', formula)
+            raise ValueError()
+        result[name] = Version(version, version)
+    return result
+
+def build_repo(name: str, url: str) -> Repository:
+    url = f'https://formulae.brew.sh/api/{url}.json'
+    return Repository(
+        family='Homebrew',
+        repo=name,
+        index_url=url,
+        parse=parse_cached,
+    )
+
+core = build_repo('Core', 'formula')
+linux = build_repo('Linux', 'formula-linux')
+cask = build_repo('Cask', 'cask')
-- 
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