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>

6 files changed, 30 insertions, 30 deletions

diff --git a/meta/classes/debian.bbclass b/meta/classes/debian.bbclass
index 989ea8f8d2..6f8a599ccb 100644
--- a/meta/classes/debian.bbclass
+++ b/meta/classes/debian.bbclass
@@ -29,11 +29,11 @@ python debian_package_name_hook () {
 
     pkgdest = d.getVar("PKGDEST")
     packages = d.getVar('PACKAGES')
-    so_re = re.compile("lib.*\.so")
+    so_re = re.compile(r"lib.*\.so")
 
     def socrunch(s):
         s = s.lower().replace('_', '-')
-        m = re.match("^(.*)(.)\.so\.(.*)$", s)
+        m = re.match(r"^(.*)(.)\.so\.(.*)$", s)
         if m is None:
             return None
         if m.group(2) in '0123456789':
@@ -79,7 +79,7 @@ python debian_package_name_hook () {
                     try:
                         cmd = [d.expand("${TARGET_PREFIX}objdump"), "-p", f]
                         output = subprocess.check_output(cmd).decode("utf-8")
-                        for m in re.finditer("\s+SONAME\s+([^\s]+)", output):
+                        for m in re.finditer(r"\s+SONAME\s+([^\s]+)", output):
                             if m.group(1) not in sonames:
                                 sonames.append(m.group(1))
                     except subprocess.CalledProcessError:
diff --git a/meta/classes/gconf.bbclass b/meta/classes/gconf.bbclass
index 4e0ee2e7d5..3e3c509d5f 100644
--- a/meta/classes/gconf.bbclass
+++ b/meta/classes/gconf.bbclass
@@ -49,7 +49,7 @@ python populate_packages_append () {
     for pkg in packages:
         schema_dir = '%s/%s/etc/gconf/schemas' % (pkgdest, pkg)
         schemas = []
-        schema_re = re.compile(".*\.schemas$")
+        schema_re = re.compile(r".*\.schemas$")
         if os.path.exists(schema_dir):
             for f in os.listdir(schema_dir):
                 if schema_re.match(f):
diff --git a/meta/classes/kernel-module-split.bbclass b/meta/classes/kernel-module-split.bbclass
index e8996cf59b..e8d3eb5105 100644
--- a/meta/classes/kernel-module-split.bbclass
+++ b/meta/classes/kernel-module-split.bbclass
@@ -133,7 +133,7 @@ python split_kernel_module_packages () {
     kernel_package_name = d.getVar("KERNEL_PACKAGE_NAME") or "kernel"
     kernel_version = d.getVar("KERNEL_VERSION")
 
-    module_regex = '^(.*)\.k?o$'
+    module_regex = r'^(.*)\.k?o$'
 
     module_pattern_prefix = d.getVar('KERNEL_MODULE_PACKAGE_PREFIX')
     module_pattern_suffix = d.getVar('KERNEL_MODULE_PACKAGE_SUFFIX')
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 45cb4fabc1..c0889bd3ee 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -578,7 +578,7 @@ pkg_postinst_${KERNEL_PACKAGE_NAME}-base () {
 PACKAGESPLITFUNCS_prepend = "split_kernel_packages "
 
 python split_kernel_packages () {
-    do_split_packages(d, root='${nonarch_base_libdir}/firmware', file_regex='^(.*)\.(bin|fw|cis|csp|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
+    do_split_packages(d, root='${nonarch_base_libdir}/firmware', file_regex=r'^(.*)\.(bin|fw|cis|csp|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
 }
 
 # Many scripts want to look in arch/$arch/boot for the bootable
diff --git a/meta/classes/libc-package.bbclass b/meta/classes/libc-package.bbclass
index 82d642e15e..0b4c666a74 100644
--- a/meta/classes/libc-package.bbclass
+++ b/meta/classes/libc-package.bbclass
@@ -113,8 +113,8 @@ python package_do_split_gconvs () {
     def calc_gconv_deps(fn, pkg, file_regex, output_pattern, group):
         deps = []
         f = open(fn, "rb")
-        c_re = re.compile('^copy "(.*)"')
-        i_re = re.compile('^include "(\w+)".*')
+        c_re = re.compile(r'^copy "(.*)"')
+        i_re = re.compile(r'^include "(\w+)".*')
         for l in f.readlines():
             l = l.decode("latin-1")
             m = c_re.match(l) or i_re.match(l)
@@ -128,15 +128,15 @@ python package_do_split_gconvs () {
         if bpn != 'glibc':
             d.setVar('RPROVIDES_%s' % pkg, pkg.replace(bpn, 'glibc'))
 
-    do_split_packages(d, gconv_libdir, file_regex='^(.*)\.so$', output_pattern=bpn+'-gconv-%s', \
+    do_split_packages(d, gconv_libdir, file_regex=r'^(.*)\.so$', output_pattern=bpn+'-gconv-%s', \
         description='gconv module for character set %s', hook=calc_gconv_deps, \
         extra_depends=bpn+'-gconv')
 
     def calc_charmap_deps(fn, pkg, file_regex, output_pattern, group):
         deps = []
         f = open(fn, "rb")
-        c_re = re.compile('^copy "(.*)"')
-        i_re = re.compile('^include "(\w+)".*')
+        c_re = re.compile(r'^copy "(.*)"')
+        i_re = re.compile(r'^include "(\w+)".*')
         for l in f.readlines():
             l = l.decode("latin-1")
             m = c_re.match(l) or i_re.match(l)
@@ -150,14 +150,14 @@ python package_do_split_gconvs () {
         if bpn != 'glibc':
             d.setVar('RPROVIDES_%s' % pkg, pkg.replace(bpn, 'glibc'))
 
-    do_split_packages(d, charmap_dir, file_regex='^(.*)\.gz$', output_pattern=bpn+'-charmap-%s', \
+    do_split_packages(d, charmap_dir, file_regex=r'^(.*)\.gz$', output_pattern=bpn+'-charmap-%s', \
         description='character map for %s encoding', hook=calc_charmap_deps, extra_depends='')
 
     def calc_locale_deps(fn, pkg, file_regex, output_pattern, group):
         deps = []
         f = open(fn, "rb")
-        c_re = re.compile('^copy "(.*)"')
-        i_re = re.compile('^include "(\w+)".*')
+        c_re = re.compile(r'^copy "(.*)"')
+        i_re = re.compile(r'^include "(\w+)".*')
         for l in f.readlines():
             l = l.decode("latin-1")
             m = c_re.match(l) or i_re.match(l)
@@ -171,13 +171,13 @@ python package_do_split_gconvs () {
         if bpn != 'glibc':
             d.setVar('RPROVIDES_%s' % pkg, pkg.replace(bpn, 'glibc'))
 
-    do_split_packages(d, locales_dir, file_regex='(.*)', output_pattern=bpn+'-localedata-%s', \
+    do_split_packages(d, locales_dir, file_regex=r'(.*)', output_pattern=bpn+'-localedata-%s', \
         description='locale definition for %s', hook=calc_locale_deps, extra_depends='')
     d.setVar('PACKAGES', d.getVar('PACKAGES', False) + ' ' + d.getVar('MLPREFIX', False) + bpn + '-gconv')
 
     use_bin = d.getVar("GLIBC_INTERNAL_USE_BINARY_LOCALE")
 
-    dot_re = re.compile("(.*)\.(.*)")
+    dot_re = re.compile(r"(.*)\.(.*)")
 
     # Read in supported locales and associated encodings
     supported = {}
@@ -290,7 +290,7 @@ python package_do_split_gconvs () {
         d.setVar('ALLOW_EMPTY_%s' % pkgname, '1')
         d.setVar('PACKAGES', '%s %s' % (pkgname, d.getVar('PACKAGES')))
         rprovides = ' %svirtual-locale-%s' % (mlprefix, legitimize_package_name(name))
-        m = re.match("(.*)_(.*)", name)
+        m = re.match(r"(.*)_(.*)", name)
         if m:
             rprovides += ' %svirtual-locale-%s' % (mlprefix, m.group(1))
         d.setVar('RPROVIDES_%s' % pkgname, rprovides)
@@ -356,12 +356,12 @@ python package_do_split_gconvs () {
     if use_bin in ('compile', 'precompiled'):
         lcsplit = d.getVar('GLIBC_SPLIT_LC_PACKAGES')
         if lcsplit and int(lcsplit):
-            do_split_packages(d, binary_locales_dir, file_regex='^(.*/LC_\w+)', \
+            do_split_packages(d, binary_locales_dir, file_regex=r'^(.*/LC_\w+)', \
                 output_pattern=bpn+'-binary-localedata-%s', \
                 description='binary locale definition for %s', recursive=True,
                 hook=metapkg_hook, extra_depends='', allow_dirs=True, match_path=True)
         else:
-            do_split_packages(d, binary_locales_dir, file_regex='(.*)', \
+            do_split_packages(d, binary_locales_dir, file_regex=r'(.*)', \
                 output_pattern=bpn+'-binary-localedata-%s', \
                 description='binary locale definition for %s', extra_depends='', allow_dirs=True)
     else:
diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index 7a7bc9e2f0..853735f0c6 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))