[PATCH v2] isar-bootstrap: Avoid absolute paths in SRC_URI

[Uladzimir Bely <ubely@ilbers.de>]

After commit ae3c091c, absolute path to source list file appears in
SRC_URI for isar-bootstrap tasks.

This leads to broken SSTATE_DIR sharing between different instances of
isar on the same machine, since almost all tasks depend on bootstrap
one.

This patch fixes the issue by leaving relative paths returned by
get_aptsources_list() function.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
---
 meta/recipes-core/isar-bootstrap/isar-bootstrap.inc | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

Changes since v1:
- Remove redundant "f" assignment since we don't use this var anymore.

diff --git a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
index 8af73a9b..3477c2fb 100644
--- a/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
+++ b/meta/recipes-core/isar-bootstrap/isar-bootstrap.inc
@@ -152,19 +152,17 @@ def get_aptsources_list(d):
     from collections import OrderedDict
     apt_sources_var = d.getVar("DISTRO_VARS_PREFIX") + "DISTRO_APT_SOURCES"
     apt_sources_list = list(OrderedDict.fromkeys((d.getVar(apt_sources_var) or "").split()))
-    ret = []
     for p in apt_sources_list:
         try:
-            f = bb.parse.resolve_file(p, d)
-            ret.append(f)
+            bb.parse.resolve_file(p, d)
         except FileNotFoundError as e:
             bb.fatal(os.strerror(errno.ENOENT) + ' "' + p + '"')
-    return ret
+    return apt_sources_list
 
 def generate_distro_sources(d):
     apt_sources_list = get_aptsources_list(d)
     for entry in apt_sources_list:
-        with open(entry, "r") as in_fd:
+        with open(bb.parse.resolve_file(entry, d), "r") as in_fd:
             for line in in_fd:
                 parsed = parse_aptsources_list_line(line)
                 if parsed:
-- 
2.20.1