buildhistory.bbclass: Rework to use read_subpackage_metadata

Using this mechanism ensures that we have a single point to implement
the loading of the package and subpackage meta data.  This also then
allows the buildhistory class to use the regular datastore vs it's
own custom arrays for processing history items.

(From OE-Core rev: 155ae6a3fe84c25904ffe7058e125bb4a28e2b45)

Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/buildhistory.bbclass

@@ -258,20 +258,15 @@ python buildhistory_emit_pkghistory() {
     rcpinfo.config = sortlist(oe.utils.squashspaces(d.getVar('PACKAGECONFIG') or ""))
     write_recipehistory(rcpinfo, d)
 
-    pkgdest = d.getVar('PKGDEST')
+    bb.build.exec_func("read_subpackage_metadata", d)
+
     for pkg in packagelist:
-        pkgdata = {}
-        with open(os.path.join(pkgdata_dir, 'runtime', pkg)) as f:
-            for line in f.readlines():
-                item = line.rstrip('\n').split(': ', 1)
-                key = item[0]
-                if key.endswith('_' + pkg):
-                    key = key[:-len(pkg)-1]
-                pkgdata[key] = item[1].encode('latin-1').decode('unicode_escape')
-
-        pkge = pkgdata.get('PKGE', '0')
-        pkgv = pkgdata['PKGV']
-        pkgr = pkgdata['PKGR']
+        localdata = d.createCopy()
+        localdata.setVar('OVERRIDES', d.getVar("OVERRIDES", False) + ":" + pkg)
+
+        pkge = localdata.getVar("PKGE") or '0'
+        pkgv = localdata.getVar("PKGV")
+        pkgr = localdata.getVar("PKGR")
         #
         # Find out what the last version was
         # Make sure the version did not decrease
@@ -288,31 +283,31 @@ python buildhistory_emit_pkghistory() {
 
         pkginfo = PackageInfo(pkg)
         # Apparently the version can be different on a per-package basis (see Python)
-        pkginfo.pe = pkgdata.get('PE', '0')
-        pkginfo.pv = pkgdata['PV']
-        pkginfo.pr = pkgdata['PR']
-        pkginfo.pkg = pkgdata['PKG']
+        pkginfo.pe = localdata.getVar("PE") or '0'
+        pkginfo.pv = localdata.getVar("PV")
+        pkginfo.pr = localdata.getVar("PR")
+        pkginfo.pkg = localdata.getVar("PKG")
         pkginfo.pkge = pkge
         pkginfo.pkgv = pkgv
         pkginfo.pkgr = pkgr
-        pkginfo.rprovides = sortpkglist(oe.utils.squashspaces(pkgdata.get('RPROVIDES', "")))
-        pkginfo.rdepends = sortpkglist(oe.utils.squashspaces(pkgdata.get('RDEPENDS', "")))
-        pkginfo.rrecommends = sortpkglist(oe.utils.squashspaces(pkgdata.get('RRECOMMENDS', "")))
-        pkginfo.rsuggests = sortpkglist(oe.utils.squashspaces(pkgdata.get('RSUGGESTS', "")))
-        pkginfo.rreplaces = sortpkglist(oe.utils.squashspaces(pkgdata.get('RREPLACES', "")))
-        pkginfo.rconflicts = sortpkglist(oe.utils.squashspaces(pkgdata.get('RCONFLICTS', "")))
-        pkginfo.files = oe.utils.squashspaces(pkgdata.get('FILES', ""))
+        pkginfo.rprovides = sortpkglist(oe.utils.squashspaces(localdata.getVar("RPROVIDES") or ""))
+        pkginfo.rdepends = sortpkglist(oe.utils.squashspaces(localdata.getVar("RDEPENDS") or ""))
+        pkginfo.rrecommends = sortpkglist(oe.utils.squashspaces(localdata.getVar("RRECOMMENDS") or ""))
+        pkginfo.rsuggests = sortpkglist(oe.utils.squashspaces(localdata.getVar("RSUGGESTS") or ""))
+        pkginfo.replaces = sortpkglist(oe.utils.squashspaces(localdata.getVar("RREPLACES") or ""))
+        pkginfo.rconflicts = sortpkglist(oe.utils.squashspaces(localdata.getVar("RCONFLICTS") or ""))
+        pkginfo.files = oe.utils.squashspaces(localdata.getVar("FILES") or "")
         for filevar in pkginfo.filevars:
-            pkginfo.filevars[filevar] = pkgdata.get(filevar, "")
+            pkginfo.filevars[filevar] = localdata.getVar(filevar) or ""
 
         # Gather information about packaged files
-        val = pkgdata.get('FILES_INFO', '')
+        val = localdata.getVar('FILES_INFO') or ''
         dictval = json.loads(val)
         filelist = list(dictval.keys())
         filelist.sort()
         pkginfo.filelist = " ".join([shlex.quote(x) for x in filelist])
 
-        pkginfo.size = int(pkgdata['PKGSIZE'])
+        pkginfo.size = int(localdata.getVar('PKGSIZE') or '0')
 
         write_pkghistory(pkginfo, d)