recipetool: create: avoid decoding errors with Python 3

We're opening source files with the default encoding (utf-8) but we
can't necessarily be sure that they are UTF-8 clean - for example,
recipetool create ftp://mama.indstate.edu/linux/tree/tree-1.7.0.tgz
prior to this patch resulted in a UnicodeDecodeError. Use the
"surrogateescape" mode to avoid this.

Fixes [YOCTO #9822].

(From OE-Core rev: 50fcd9d1b9a20d49bc873467a82a071f2f2f8b5a)

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/recipetool/create.py

@@ -390,7 +390,7 @@ def create_recipe(args):
                 srcsubdir = dirlist[0]
                 srctree = os.path.join(srctree, srcsubdir)
             else:
-                with open(singleitem, 'r') as f:
+                with open(singleitem, 'r', errors='surrogateescape') as f:
                     if '<html' in f.read(100).lower():
                         logger.error('Fetching "%s" returned a single HTML page - check the URL is correct and functional' % fetchuri)
                         sys.exit(1)
@@ -840,7 +840,7 @@ def crunch_license(licfile):
     # https://github.com/FFmpeg/FFmpeg/blob/master/COPYING.LGPLv3
     crunched_md5sums['2ebfb3bb49b9a48a075cc1425e7f4129'] = 'LGPLv3'
     lictext = []
-    with open(licfile, 'r') as f:
+    with open(licfile, 'r', errors='surrogateescape') as f:
         for line in f:
             # Drop opening statements
             if copyright_re.match(line):
@@ -978,7 +978,7 @@ def convert_debian(debpath):
 
     values = {}
     depends = []
-    with open(os.path.join(debpath, 'control')) as f:
+    with open(os.path.join(debpath, 'control'), 'r', errors='surrogateescape') as f:
         indesc = False
         for line in f:
             if indesc: