v↑ tempstorage 2.12.2 -> 5.2(ZODB5) 3-nxd(ZODB4-wc2, ZODB4)

See merge request nexedi/slapos!1009

component/tempstorage/buildout.cfg

+# SlapOS component for tempstorage.
+# https://github.com/zopefoundation/tempstorage
+
+[buildout]
+extends =
+    ../ZODB/buildout.cfg
+    ../git/buildout.cfg
+
+
+# tempstorage provides tempstorage<X> depending on ZODB major version.
+#
+# - tempstorage >= 4 works only with ZODB5 because ZODB commit protocol was changed
+#   https://github.com/zopefoundation/tempstorage/commit/5cc223ea
+# - tempstorage <= 5.2 is vulnerable to data corruption in loadBefore
+#   https://github.com/zopefoundation/tempstorage/issues/8
+#   https://github.com/zopefoundation/tempstorage/pull/16
+# - tempstorage 3-nxd provides loadBefore backports to tempstorage 3.
+[tempstorage]
+recipe  = slapos.recipe.build
+depends = ${ZODB:egg}
+init =
+  # link/depend to tempstorage<ZODB.major>
+  zodb = self.buildout['ZODB']
+  zmajor = zodb['major']
+  tempstorage_x = self.buildout['tempstorage'+zmajor]
+  options['depends'] += '$${%s:egg}' % tempstorage_x.name
+  options['egg'] = tempstorage_x['egg']
+
+  # update [versions] from what is needed by tempstorage<X>
+  self.buildout.parse('[_tempstorage-versions]\n' + tempstorage_x['egg-versions'])
+  versions = self.buildout['versions']
+  versions.update(self.buildout['_tempstorage-versions'])
+  # propagate updated [versions] -> easy_install
+  # (buildout does this in Buildout constructor)
+  import zc.buildout.easy_install
+  zc.buildout.easy_install.default_versions(versions)
+
+
+# tempstorage5 is plain upstream egg
+[tempstorage5]
+recipe  = zc.recipe.egg:eggs
+egg     = tempstorage
+eggs    = ${:egg}
+
+egg-versions =
+  tempstorage = 5.2
+
+
+# tempstorage4-wc2 is tempstorage 3 + backports for loadBefore fixes
+[tempstorage4-wc2]
+recipe  = zc.recipe.egg:develop
+setup   = ${tempstorage4-wc2-repository:location}
+egg     = tempstorage
+egg-versions =
+  tempstorage =
+
+[tempstorage4-wc2-repository]
+recipe  = slapos.recipe.build:gitclone
+repository = https://lab.nexedi.com/nexedi/tempstorage.git
+branch  = 3-nxd
+revision= 77b49295db78
+location = ${buildout:parts-directory}/tempstorage
+git-executable = ${git:location}/bin/git
+
+
+# tempstorage4 is the same as tempstorage4-wc2 because of loadBefore fixes.
+[tempstorage4]
+<= tempstorage4-wc2

stack/erp5/buildout.cfg

@@ -37,6 +37,7 @@ extends =
   ../../component/scikit-image/buildout.cfg
   ../../component/PyWavelets/buildout.cfg
   ../../component/subversion/buildout.cfg
+  ../../component/tempstorage/buildout.cfg
   ../../component/tesseract/buildout.cfg
   ../../component/w3m/buildout.cfg
   ../../component/poppler/buildout.cfg
@@ -497,6 +498,7 @@ eggs = ${neoppod:eggs}
 
 # Zope
   Zope2
+  ${tempstorage:egg}
 # Zope acquisition patch
   Acquisition
 # for runzeo