From 87a3b72ef0f6ee3842114752b7f9ddd439b20acb Mon Sep 17 00:00:00 2001
From: "Mark W. Krentel" <krentel@rice.edu>
Date: Wed, 16 Feb 2022 11:08:51 -0600
Subject: Add 'stable' to the list of infinity version names. (#28772)

* Add 'stable' to the list of infinity version names.
Rename libunwind 1.5-head to 1.5-stable.

* Add stable to the infinite version list in packaging_guide.rst.
---
 lib/spack/docs/packaging_guide.rst | 3 ++-
 lib/spack/spack/version.py         | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/spack/docs/packaging_guide.rst b/lib/spack/docs/packaging_guide.rst
index a65a363d19..efb0232e19 100644
--- a/lib/spack/docs/packaging_guide.rst
+++ b/lib/spack/docs/packaging_guide.rst
@@ -705,7 +705,8 @@ as follows:
 
 #. The following special strings are considered larger than any other
    numeric or non-numeric version component, and satisfy the following
-   order between themselves: ``develop > main > master > head > trunk``.
+   order between themselves:
+   ``develop > main > master > head > trunk > stable``.
 
 #. Numbers are ordered numerically, are less than special strings, and
    larger than other non-numeric components.
diff --git a/lib/spack/spack/version.py b/lib/spack/spack/version.py
index 31a585469b..4c54fb08b2 100644
--- a/lib/spack/spack/version.py
+++ b/lib/spack/spack/version.py
@@ -59,7 +59,7 @@ SEMVER_REGEX = re.compile(".+(?P<semver>([0-9]+)[.]([0-9]+)[.]([0-9]+)"
                           "(?:[+][0-9A-Za-z-]+)?)")
 
 # Infinity-like versions. The order in the list implies the comparison rules
-infinity_versions = ['develop', 'main', 'master', 'head', 'trunk']
+infinity_versions = ['develop', 'main', 'master', 'head', 'trunk', 'stable']
 
 iv_min_len = min(len(s) for s in infinity_versions)
 
-- 
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