externals: add attrs for new jsonschema

Updating `jsonschema` to 3.2.0 requires `attrs`. Add it to externals.
2021-12-19 11:18:42 -08:00
parent 90592b3cbe
commit f83e0fb81a
16 changed files with 4928 additions and 0 deletions
--- a/lib/spack/external/init.py
+++ b/lib/spack/external/init.py
@@ -24,6 +24,13 @@
  vendored copy ever needs to be updated again:
  https://github.com/spack/spack/pull/6786/commits/dfcef577b77249106ea4e4c69a6cd9e64fa6c418

+attrs
+----------------
+
+* Homepage: https://github.com/python-attrs/attrs
+* Usage: Needed by jsonschema.
+* Version: 21.2.0 (83d3cd70f90a3f4d19ee8b508e58d1c58821c0ad)
+
 ctest_log_parser
 ----------------