slapos.recipe.build:download* : Ignore urls that point to file coming from SR itself

Without this fix SR files fetched via slapos.recipe.build:download and
slapos.recipe.build:download-unpacked produce leat to error e.g. like

urlpath = '/SR-BASE/stack/erp5/instance-mariadb-resiliency-after-import-script.sh.in', kind = '', version = None

    def addbom(urlpath, kind, version=None):
        name, ver = namever(urlpath)
        if version is not None:
            assert ver is None
            ver = version
        ver = removeprefix(ver, name+'-')   # wendelin.core-2.0.alpha3-0-g6315384  -> 2.0.alpha3-0-g6315384
        if '//' in urlpath:
            url = urlpath
        else:
            if kind == 'egg':
                # XXX not strictly correct -> better retrieve the actual URL, but buildout does not save it in installed.cfg
                url = 'https://pypi.org/project/%s/%s/' % (name, ver)
            else:
>               raise NotImplementedError('TODO url for kind %r  (urlpath: %r)' % (kind, urlpath))
E               NotImplementedError: TODO url for kind ''  (urlpath: '/SR-BASE/stack/erp5/instance-mariadb-resiliency-after-import-script.sh.in')

nxdbom/__init__.py:64: NotImplementedError

nxdbom/__init__.py

@@ -61,7 +61,7 @@ def bom_software(installed_software_path): # -> {} name -> PkgInfo
                 # XXX not strictly correct -> better retrieve the actual URL, but buildout does not save it in installed.cfg
                 url = 'https://pypi.org/project/%s/%s/' % (name, ver)
             else:
-                raise NotImplementedError('TODO url for kind %s' % kind)
+                raise NotImplementedError('TODO url for kind %r  (urlpath: %r)' % (kind, urlpath))
 
 
         info = PkgInfo(name, ver, kind, url)
@@ -111,13 +111,19 @@ def bom_software(installed_software_path): # -> {} name -> PkgInfo
             if isconf(url):
                 continue
 
+            # if url refer to local filesystem and comes as /base/... - it
+            # comes from the SR itself and should be ignored
+            base = part.get('_profile_base_location_')      # not always present, e.g. no on
+            if base is not None  and  url.startswith(base): # ocropy-eng-traineddata
+                continue
+
             # let's see if maybe its an archive from known place
             _ = namever(url, failonerr=False)
             if _ is not None:
                 addbom(url, '')         # XXX detect kind
                 continue
 
-            raise NotImplementedError('%s uses %s with url that does not look like a .conf or archive file: %s' % (s, recipe, url))
+            raise NotImplementedError('%s uses %s with url that does not look like a .conf, archive or SR file: %s' % (s, recipe, url))
 
 
         elif recipe.startswith('slapos.recipe.template'):

nxdbom/nxdbom_test.py

@@ -110,6 +110,14 @@ url = https://osdn.net/frs/redir.php?f=ipafonts%2F57330%2FIPAexfont00201.zip
 IPAexfont                    00201      https://osdn.net/frs/redir.php?f=ipafonts%2F57330%2FIPAexfont00201.zip
 """)
 
+# download from local filesystem - ignore if that file comes from the profile itself
+case1("""\
+[mariadb-resiliency-after-import-script]
+recipe = slapos.recipe.build:download
+url = /BASE/stack/erp5/instance-mariadb-resiliency-after-import-script.sh.in
+_profile_base_location_ = /BASE
+""", '')
+
 for x in ('gcc', 'python', 'ZODB', 'ZEO', 'tempstorage'):
     case1("""\
 [%s]