[gnome-continuous-yocto/gnomeostree-3.28-rocko: 5979/8267] scriptutils: fix fetch_uri() to work with RSS

[Emmanuele Bassi <ebassi src gnome org>]

commit 415fbfb0cd1bc5129179596ba27ae2362b7de2a4
Author: Paul Eggleton <paul eggleton linux intel com>
Date:   Fri May 19 16:11:48 2017 +1200

    scriptutils: fix fetch_uri() to work with RSS
    
    Since recipe-specific sysroots were implemented, devtool add and devtool
    upgrade operations that fetch from a URL that requires native sysroot
    dependencies will fail to work as there is no recipe-specific sysroot
    set up for them during fetching. An example was any URL pointing to a
    tarball compressed with xz, e.g. devtool upgrade on gnutls.
    
    The most expedient way to fix this is to set up a dummy recipe-specific
    sysroot to use for the fetch/unpack operations. We do this in the same
    manner as bitbake -b does, so we're just taking all of the sysroot
    components available and creating a sysroot from those rather than
    ensuring the correct dependencies are there - this means that we're
    still going to have problems if e.g. xz-native hasn't been built yet,
    but that issue will be trickier to solve and is tracked separately.
    
    Fixes [YOCTO #11474].
    
    (From OE-Core rev: 559151e783759af78b5cdd76cdbb9ce325a391e6)
    
    Signed-off-by: Paul Eggleton <paul eggleton linux intel com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 scripts/lib/scriptutils.py |   65 +++++++++++++++++++++++++++----------------
 1 files changed, 41 insertions(+), 24 deletions(-)
---
diff --git a/scripts/lib/scriptutils.py b/scripts/lib/scriptutils.py
index 4ccbe5c..92b601c 100644
--- a/scripts/lib/scriptutils.py
+++ b/scripts/lib/scriptutils.py
@@ -21,6 +21,8 @@ import logging
 import glob
 import argparse
 import subprocess
+import tempfile
+import shutil
 
 def logger_create(name, stream=None):
     logger = logging.getLogger(name)
@@ -78,32 +80,47 @@ def git_convert_standalone_clone(repodir):
 
 def fetch_uri(d, uri, destdir, srcrev=None):
     """Fetch a URI to a local directory"""
-    import bb.data
-    bb.utils.mkdirhier(destdir)
-    localdata = bb.data.createCopy(d)
-    localdata.setVar('BB_STRICT_CHECKSUM', '')
-    localdata.setVar('SRCREV', srcrev)
-    ret = (None, None)
-    olddir = os.getcwd()
+    import bb
+    tmpparent = d.getVar('BASE_WORKDIR')
+    bb.utils.mkdirhier(tmpparent)
+    tmpworkdir = tempfile.mkdtemp(dir=tmpparent)
     try:
-        fetcher = bb.fetch2.Fetch([uri], localdata)
-        for u in fetcher.ud:
-            ud = fetcher.ud[u]
-            ud.ignore_checksums = True
-        fetcher.download()
-        for u in fetcher.ud:
-            ud = fetcher.ud[u]
-            if ud.localpath.rstrip(os.sep) == localdata.getVar('DL_DIR').rstrip(os.sep):
-                raise Exception('Local path is download directory - please check that the URI "%s" is 
correct' % uri)
-        fetcher.unpack(destdir)
-        for u in fetcher.ud:
-            ud = fetcher.ud[u]
-            if ud.method.recommends_checksum(ud):
-                md5value = bb.utils.md5_file(ud.localpath)
-                sha256value = bb.utils.sha256_file(ud.localpath)
-                ret = (md5value, sha256value)
+        bb.utils.mkdirhier(destdir)
+        localdata = bb.data.createCopy(d)
+
+        # Set some values to allow extend_recipe_sysroot to work here we're we are not running from a task
+        localdata.setVar('WORKDIR', tmpworkdir)
+        localdata.setVar('BB_RUNTASK', 'do_fetch')
+        localdata.setVar('PN', 'dummy')
+        localdata.setVar('BB_LIMITEDDEPS', '1')
+        bb.build.exec_func("extend_recipe_sysroot", localdata)
+
+        # Set some values for the benefit of the fetcher code
+        localdata.setVar('BB_STRICT_CHECKSUM', '')
+        localdata.setVar('SRCREV', srcrev)
+        ret = (None, None)
+        olddir = os.getcwd()
+        try:
+            fetcher = bb.fetch2.Fetch([uri], localdata)
+            for u in fetcher.ud:
+                ud = fetcher.ud[u]
+                ud.ignore_checksums = True
+            fetcher.download()
+            for u in fetcher.ud:
+                ud = fetcher.ud[u]
+                if ud.localpath.rstrip(os.sep) == localdata.getVar('DL_DIR').rstrip(os.sep):
+                    raise Exception('Local path is download directory - please check that the URI "%s" is 
correct' % uri)
+            fetcher.unpack(destdir)
+            for u in fetcher.ud:
+                ud = fetcher.ud[u]
+                if ud.method.recommends_checksum(ud):
+                    md5value = bb.utils.md5_file(ud.localpath)
+                    sha256value = bb.utils.sha256_file(ud.localpath)
+                    ret = (md5value, sha256value)
+        finally:
+            os.chdir(olddir)
     finally:
-        os.chdir(olddir)
+        shutil.rmtree(tmpworkdir)
     return ret
 
 def run_editor(fn):