euscan: allow to use .ebuild files in any directory

Even outside PORTDIR_OVERLAY !

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>

pym/euscan/ebuild.py

@@ -0,0 +1,86 @@
+import os, sys, imp
+
+import portage
+from portage.const import VDB_PATH
+from portage import _encodings
+from portage import _shell_quote
+from portage import _unicode_decode
+from portage import _unicode_encode
+
+# Stolen from the ebuild command
+def package_from_ebuild(ebuild):
+    pf = None
+    if ebuild.endswith(".ebuild"):
+        pf = os.path.basename(ebuild)[:-7]
+    else:
+        return False
+
+    if not os.path.isabs(ebuild):
+        mycwd = os.getcwd()
+        # Try to get the non-canonical path from the PWD evironment variable,
+        # since the canonical path returned from os.getcwd() may may be
+        # unusable in cases where the directory stucture is built from
+        # symlinks.
+        pwd = os.environ.get('PWD', '')
+        if sys.hexversion < 0x3000000:
+            pwd = _unicode_decode(pwd, encoding=_encodings['content'],
+                                  errors='strict')
+        if pwd and pwd != mycwd and \
+            os.path.realpath(pwd) == mycwd:
+            mycwd = portage.normalize_path(pwd)
+        ebuild = os.path.join(mycwd, ebuild)
+
+    ebuild = portage.normalize_path(ebuild)
+    # portdbapi uses the canonical path for the base of the portage tree, but
+    # subdirectories of the base can be built from symlinks (like crossdev
+    # does).
+    ebuild_portdir = os.path.realpath(
+      os.path.dirname(os.path.dirname(os.path.dirname(ebuild))))
+    ebuild = os.path.join(ebuild_portdir, *ebuild.split(os.path.sep)[-3:])
+    vdb_path = os.path.join(portage.settings['ROOT'], VDB_PATH)
+
+    # Make sure that portdb.findname() returns the correct ebuild.
+    if ebuild_portdir != vdb_path and \
+        ebuild_portdir not in portage.portdb.porttrees:
+        if sys.hexversion >= 0x3000000:
+            os.environ["PORTDIR_OVERLAY"] = \
+                os.environ.get("PORTDIR_OVERLAY", "") + \
+                " " + _shell_quote(ebuild_portdir)
+        else:
+            os.environ["PORTDIR_OVERLAY"] = \
+                os.environ.get("PORTDIR_OVERLAY", "") + \
+                " " + _unicode_encode(_shell_quote(ebuild_portdir),
+                encoding=_encodings['content'], errors='strict')
+
+        portage.close_portdbapi_caches()
+        imp.reload(portage)
+    del portage.portdb.porttrees[1:]
+    if ebuild_portdir != portage.portdb.porttree_root:
+        portage.portdb.porttrees.append(ebuild_portdir)
+
+    if not os.path.exists(ebuild):
+        return False
+
+    ebuild_split = ebuild.split("/")
+    cpv = "%s/%s" % (ebuild_split[-3], pf)
+
+    if not portage.catpkgsplit(cpv):
+        return False
+
+    if ebuild.startswith(os.path.join(portage.root, portage.const.VDB_PATH)):
+        mytree = "vartree"
+
+        portage_ebuild = portage.db[portage.root][mytree].dbapi.findname(cpv)
+
+        if os.path.realpath(portage_ebuild) != ebuild:
+            return False
+
+    else:
+        mytree = "porttree"
+
+        portage_ebuild = portage.portdb.findname(cpv)
+
+        if not portage_ebuild or portage_ebuild != ebuild:
+            return False
+
+    return cpv

pym/euscan/helpers.py

@@ -3,10 +3,12 @@ import sys
 import re
 import pkg_resources
 import errno
-import imp
 
 import urllib2
 
+import portage
+from portage import dep
+
 try:
     from urllib import robotparser
     from urllib import urlparse
@@ -14,13 +16,6 @@ except ImportError:
     import robotparser
     import urlparse
 
-import portage
-from portage import dep
-from portage.const import VDB_PATH
-from portage import _encodings
-from portage import _shell_quote
-from portage import _unicode_decode
-from portage import _unicode_encode
 
 from euscan import CONFIG, BLACKLIST_VERSIONS, ROBOTS_TXT_BLACKLIST_DOMAINS
 import euscan
@@ -546,7 +541,6 @@ def generate_scan_paths(url):
 
     return steps
 
-
 def parse_mirror(uri):
     from random import shuffle
 
@@ -573,82 +567,3 @@ def parse_mirror(uri):
         return None
 
     return uri
-
-
-# Stolen from ebuild
-def query_from_ebuild(ebuild):
-    pf = None
-    if ebuild.endswith(".ebuild"):
-        pf = os.path.basename(ebuild)[:-7]
-    else:
-        return False
-
-    if not os.path.isabs(ebuild):
-        mycwd = os.getcwd()
-        # Try to get the non-canonical path from the PWD evironment variable,
-        # since the canonical path returned from os.getcwd() may may be
-        # unusable in cases where the directory stucture is built from
-        # symlinks.
-        pwd = os.environ.get('PWD', '')
-        if sys.hexversion < 0x3000000:
-            pwd = _unicode_decode(pwd, encoding=_encodings['content'],
-                                  errors='strict')
-        if pwd and pwd != mycwd and \
-            os.path.realpath(pwd) == mycwd:
-            mycwd = portage.normalize_path(pwd)
-        ebuild = os.path.join(mycwd, ebuild)
-
-    ebuild = portage.normalize_path(ebuild)
-    # portdbapi uses the canonical path for the base of the portage tree, but
-    # subdirectories of the base can be built from symlinks (like crossdev
-    # does).
-    ebuild_portdir = os.path.realpath(
-      os.path.dirname(os.path.dirname(os.path.dirname(ebuild))))
-    ebuild = os.path.join(ebuild_portdir, *ebuild.split(os.path.sep)[-3:])
-    vdb_path = os.path.join(portage.settings['ROOT'], VDB_PATH)
-
-    # Make sure that portdb.findname() returns the correct ebuild.
-    if ebuild_portdir != vdb_path and \
-        ebuild_portdir not in portage.portdb.porttrees:
-        if sys.hexversion >= 0x3000000:
-            os.environ["PORTDIR_OVERLAY"] = \
-                os.environ.get("PORTDIR_OVERLAY", "") + \
-                " " + _shell_quote(ebuild_portdir)
-        else:
-            os.environ["PORTDIR_OVERLAY"] = \
-                os.environ.get("PORTDIR_OVERLAY", "") + \
-                " " + _unicode_encode(_shell_quote(ebuild_portdir),
-                encoding=_encodings['content'], errors='strict')
-
-        portage.close_portdbapi_caches()
-        imp.reload(portage)
-    del portage.portdb.porttrees[1:]
-    if ebuild_portdir != portage.portdb.porttree_root:
-        portage.portdb.porttrees.append(ebuild_portdir)
-
-    if not os.path.exists(ebuild):
-        return False
-
-    ebuild_split = ebuild.split("/")
-    cpv = "%s/%s" % (ebuild_split[-3], pf)
-
-    if not portage.catpkgsplit(cpv):
-        return False
-
-    if ebuild.startswith(os.path.join(portage.root, portage.const.VDB_PATH)):
-        mytree = "vartree"
-
-        portage_ebuild = portage.db[portage.root][mytree].dbapi.findname(cpv)
-
-        if os.path.realpath(portage_ebuild) != ebuild:
-            return False
-
-    else:
-        mytree = "porttree"
-
-        portage_ebuild = portage.portdb.findname(cpv)
-
-        if not portage_ebuild or portage_ebuild != ebuild:
-            return False
-
-    return cpv

pym/euscan/scan.py

@@ -2,20 +2,20 @@ import os
 import sys
 
 import portage
-
 from portage.dbapi import porttree
 
 import gentoolkit.pprinter as pp
 from gentoolkit.query import Query
+from gentoolkit.package import Package
 from gentoolkit.eclean.search import (port_settings)
 
 from euscan import CONFIG, BLACKLIST_PACKAGES
 from euscan import handlers
 from euscan import helpers
+from euscan.ebuild import package_from_ebuild
 
 import euscan
 
-
 def filter_versions(cp, versions):
     filtered = {}
 
@@ -64,15 +64,27 @@ def scan_upstream_urls(cpv, urls):
     cp, ver, rev = portage.pkgsplit(cpv)
     return filter_versions(cp, versions)
 
+# gentoolkit stores PORTDB, so even if we modify it to add an overlay
+# it will still use the old dbapi
+def reload_gentoolkit():
+    import gentoolkit.package
+    import gentoolkit.query
+
+    PORTDB = portage.db[portage.root]["porttree"].dbapi
+    if hasattr(gentoolkit.package, 'PORTDB'):
+        gentoolkit.package.PORTDB = PORTDB
+    if hasattr(gentoolkit.query, 'PORTDB'):
+        gentoolkit.query.PORTDB = PORTDB
 
 def scan_upstream(query):
+    matches = []
 
-    # check if the query is an ebuild file.
+    if query.endswith(".ebuild"):
-    # if it's a valid ebuild convert the filename in an euscan query
+        cpv = package_from_ebuild(query)
-    ebuild_query = helpers.query_from_ebuild(query)
+        if cpv:
-    if ebuild_query:
+            reload_gentoolkit()
-        query = ebuild_query
+            matches = [Package(cpv)]
-
+    else:
         matches = Query(query).find(
             include_masked=True,
             in_installed=False