meta: Fix Deprecated warnings from regexs

Fix handling of escape characters in regexs and hence fix python
Deprecation warnings which will be problematic in python 3.8.

Note that some show up as:

"""
meta/classes/package.bbclass:1293: DeprecationWarning: invalid escape sequence \.  

"""

where the problem isn't on 1293 in package.bbclass but in some _prepend to a
package.bbclass function in a different file like mesa.inc, often from
do_package_split() calls.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 11 insertions, 11 deletions

diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index 7a7bc9e2f05..853735f0c64 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -75,7 +75,7 @@ def legitimize_package_name(s):
             return ('\\u%s' % cp).encode('latin-1').decode('unicode_escape')
 
     # Handle unicode codepoints encoded as <U0123>, as in glibc locale files.
-    s = re.sub('<U([0-9A-Fa-f]{1,4})>', fixutf, s)
+    s = re.sub(r'<U([0-9A-Fa-f]{1,4})>', fixutf, s)
 
     # Remaining package name validity fixes
     return s.lower().replace('_', '-').replace('@', '+').replace(',', '+').replace('/', '-')
@@ -1590,8 +1590,8 @@ python package_do_shlibs() {
         bb.note("not generating shlibs")
         return
 
-    lib_re = re.compile("^.*\.so")
-    libdir_re = re.compile(".*/%s$" % d.getVar('baselib'))
+    lib_re = re.compile(r"^.*\.so")
+    libdir_re = re.compile(r".*/%s$" % d.getVar('baselib'))
 
     packages = d.getVar('PACKAGES')
 
@@ -1632,17 +1632,17 @@ python package_do_shlibs() {
         fd.close()
         rpath = tuple()
         for l in lines:
-            m = re.match("\s+RPATH\s+([^\s]*)", l)
+            m = re.match(r"\s+RPATH\s+([^\s]*)", l)
             if m:
                 rpaths = m.group(1).replace("$ORIGIN", ldir).split(":")
                 rpath = tuple(map(os.path.normpath, rpaths))
         for l in lines:
-            m = re.match("\s+NEEDED\s+([^\s]*)", l)
+            m = re.match(r"\s+NEEDED\s+([^\s]*)", l)
             if m:
                 dep = m.group(1)
                 if dep not in needed:
                     needed.add((dep, file, rpath))
-            m = re.match("\s+SONAME\s+([^\s]*)", l)
+            m = re.match(r"\s+SONAME\s+([^\s]*)", l)
             if m:
                 this_soname = m.group(1)
                 prov = (this_soname, ldir, pkgver)
@@ -1722,7 +1722,7 @@ python package_do_shlibs() {
             out, err = p.communicate()
             # process the output, grabbing all .dll names
             if p.returncode == 0:
-                for m in re.finditer("DLL Name: (.*?\.dll)$", out.decode(), re.MULTILINE | re.IGNORECASE):
+                for m in re.finditer(r"DLL Name: (.*?\.dll)$", out.decode(), re.MULTILINE | re.IGNORECASE):
                     dllname = m.group(1)
                     if dllname:
                         needed[pkg].add((dllname, file, tuple()))
@@ -1883,9 +1883,9 @@ python package_do_pkgconfig () {
     shlibs_dirs = d.getVar('SHLIBSDIRS').split()
     shlibswork_dir = d.getVar('SHLIBSWORKDIR')
 
-    pc_re = re.compile('(.*)\.pc$')
-    var_re = re.compile('(.*)=(.*)')
-    field_re = re.compile('(.*): (.*)')
+    pc_re = re.compile(r'(.*)\.pc$')
+    var_re = re.compile(r'(.*)=(.*)')
+    field_re = re.compile(r'(.*): (.*)')
 
     pkgconfig_provided = {}
     pkgconfig_needed = {}
@@ -1933,7 +1933,7 @@ python package_do_pkgconfig () {
         if not os.path.exists(dir):
             continue
         for file in os.listdir(dir):
-            m = re.match('^(.*)\.pclist$', file)
+            m = re.match(r'^(.*)\.pclist$', file)
             if m:
                 pkg = m.group(1)
                 fd = open(os.path.join(dir, file))