fetch: cache: Keep cache in XDG_CACHE_HOME (eg: ~/.cache)

diff --git a/default.nix b/default.nix
index 6331754cffa9704802efea37409ece886c61ba80..69a71496916a7533de4260f0c2beaa9ec1915db2 100644 (file)
--- a/default.nix
+++ b/default.nix
@@ -1,11 +1,11 @@
 { pkgs ? import <nixpkgs> { }, lint ? false }:
 pkgs.python3Packages.callPackage ({ lib, buildPythonPackage, autopep8, mypy
-  , pylint, requests, requests-cache, types-requests }:
+  , pylint, requests, requests-cache, types-requests, xdg-base-dirs }:
   buildPythonPackage rec {
     pname = "paperdoorknob";
     version = "0.0.1";
     src = lib.cleanSource ./.;
-    propagatedBuildInputs = [ requests requests-cache ];
+    propagatedBuildInputs = [ requests requests-cache xdg-base-dirs ];
     nativeCheckInputs = [ mypy types-requests ]
       ++ lib.optionals lint [ autopep8 pylint ];
     doCheck = true;

diff --git a/paperdoorknob.py b/paperdoorknob.py
index c1117c2680d3f2eb6788542116602606423fb6df..3aae5382aabda4aabe7328990f224e9b19b2619a 100644 (file)
--- a/paperdoorknob.py
+++ b/paperdoorknob.py
@@ -6,12 +6,19 @@
 
 
 from argparse import ArgumentParser
+import os.path
 import requests
 import requests_cache
+from xdg_base_dirs import xdg_cache_home
 
 
 def command_line_parser() -> ArgumentParser:
     parser = ArgumentParser(prog='paperdoorknob', description='Print glowfic')
+    parser.add_argument(
+        '--cache_path',
+        metavar='PATH',
+        help='Where to keep the http cache (instead of %(default)s)',
+        default=os.path.join(xdg_cache_home(), "paperdoorknob"))
     parser.add_argument(
         '--timeout',
         help='How long to wait for HTTP requests, in seconds',
@@ -27,7 +34,7 @@ def fetch(url: str, session: requests.Session, timeout: int) -> None:
 
 def main() -> None:
     args = command_line_parser().parse_args()
-    with requests_cache.CachedSession() as session:
+    with requests_cache.CachedSession(args.cache_path) as session:
         fetch(args.url, session, args.timeout)