diff mercurial/requirements.py @ 45386:034d94f8761b

requirements: introduce constants for `shared` and `relshared` requirements

We add them to `WORKING_DIR_REQUIREMENTS` too as they should be stored in
`.hg/requires` and have information about the type of working copy.

Differential Revision: https://phab.mercurial-scm.org/D8926

--- a/mercurial/requirements.py	Mon Aug 10 15:47:21 2020 +0530
+++ b/mercurial/requirements.py	Tue Aug 11 13:43:43 2020 +0530
@@ -45,7 +45,23 @@
 # The repository use persistent nodemap for the changelog and the manifest.
 NODEMAP_REQUIREMENT = b'persistent-nodemap'
 
+# Denotes that the current repository is a share
+SHARED_REQUIREMENT = b'shared'
+
+# Denotes that current repository is a share and the shared source path is
+# relative to the current repository root path
+RELATIVE_SHARED_REQUIREMENT = b'relshared'
+
 # List of requirements which are working directory specific
 # These requirements cannot be shared between repositories if they
 # share the same store
-WORKING_DIR_REQUIREMENTS = {SPARSE_REQUIREMENT}
+# * sparse is a working directory specific functionality and hence working
+#   directory specific requirement
+# * SHARED_REQUIREMENT and RELATIVE_SHARED_REQUIREMENT are requirements which
+#   represents that the current working copy/repository shares store of another
+#   repo. Hence both of them should be stored in working copy
+WORKING_DIR_REQUIREMENTS = {
+    SPARSE_REQUIREMENT,
+    SHARED_REQUIREMENT,
+    RELATIVE_SHARED_REQUIREMENT,
+}