From fc25ba1b2290bcf17e35e068ccce0f5defed1c04 Mon Sep 17 00:00:00 2001
From: Tim Fuller <tjfulle@sandia.gov>
Date: Wed, 31 Oct 2018 21:07:07 -0600
Subject: Parse the ${NAMESPACE} format string in a spec's format method.
 (#9686)

This allows installing software on a namespace basis by including ${NAMESPACE} in `install_path_scheme`. e.g.,

```
cat ~/.spack/config.yaml
config:
  install_path_scheme:
      "${ARCHITECTURE}/${NAMESPACE}/${COMPILERNAME}-${COMPILERVER}/${PACKAGE}-${VERSION}-${HASH}"
```
---
 lib/spack/spack/spec.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py
index eb2e817736..1579c5c011 100644
--- a/lib/spack/spack/spec.py
+++ b/lib/spack/spack/spec.py
@@ -2944,6 +2944,7 @@ class Spec(object):
             ${SPACK_INSTALL} The default spack install directory,
                              ${SPACK_PREFIX}/opt
             ${PREFIX}        The package prefix
+            ${NAMESPACE}     The package namespace
 
         Note these are case-insensitive: for example you can specify either
         ``${PACKAGE}`` or ``${package}``.
@@ -3126,6 +3127,8 @@ class Spec(object):
                     else:
                         hashlen = None
                     out.write(fmt % (self.dag_hash(hashlen)))
+                elif named_str == 'NAMESPACE':
+                    out.write(fmt % token_transform(self.namespace))
 
                 named = False
 
-- 
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