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avoid writing the same view multiple times in exchange mode

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This commit is contained in:
Gregory Becker 2023-03-30 15:35:25 -07:00
parent c39610e5a0
commit f4865334ae
1 changed files with 7 additions and 0 deletions
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7
lib/spack/spack/environment/environment.py
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@ -692,6 +692,13 @@ def regenerate(self, concretized_root_specs, force=False):
if update_method == "exchange": if update_method == "exchange":
if os.path.isdir(new_root): if os.path.isdir(new_root):
# If new_root is the newest thing in its directory, no need to update
parent = os.path.dirname(new_root)
siblings = [os.path.join(parent, s) for s in os.listdir(parent)]
siblings.sort(reverse=True, key=lambda p: os.stat(p).st_mtime)
if siblings[0] == new_root:
tty.debug("View at %s does not need regenration." % self.root)
return
shutil.rmtree(new_root) shutil.rmtree(new_root)
_error_on_nonempty_view_dir(new_root) _error_on_nonempty_view_dir(new_root)