From ec8a2b310d5f0b42f60898a5c6d239949842b34c Mon Sep 17 00:00:00 2001
From: Joshua Watt <jpewhacker@gmail.com>
Date: Fri, 21 Jun 2019 08:35:54 -0500
Subject: python3: Reformat sysconfig

Reformats the sysconfig file when packaging. This file is output by
using the python pprint function. This function will wrap long lines at
80 characters by default, and will even split strings at whitespace
boundaries to do so, e.g.:

 'A': 'B is really'
    ' long'

This causes a problem for reproducibility however because there might be
lines of differing lengths depending on the build path. These
non-reproducible paths are removed, but their effect on string wrapping
from pprint remains.

To correct this, reformat the entire sysconfig file by re-printing using
pprint with an (effectively) unlimited line length.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 .../python/python3/reformat_sysconfig.py            | 21 +++++++++++++++++++++
 meta/recipes-devtools/python/python3_3.7.3.bb       |  7 +++++++
 2 files changed, 28 insertions(+)
 create mode 100644 meta/recipes-devtools/python/python3/reformat_sysconfig.py

diff --git a/meta/recipes-devtools/python/python3/reformat_sysconfig.py b/meta/recipes-devtools/python/python3/reformat_sysconfig.py
new file mode 100644
index 0000000000..c4164313e8
--- /dev/null
+++ b/meta/recipes-devtools/python/python3/reformat_sysconfig.py
@@ -0,0 +1,21 @@
+#! /usr/bin/env python3
+#
+# SPDX-License-Identifier: MIT
+#
+# Copyright 2019 by Garmin Ltd. or its subsidiaries
+#
+# A script to reformat python sysconfig
+
+import sys
+import pprint
+l = {}
+g = {}
+with open(sys.argv[1], 'r') as f:
+    exec(f.read(), g, l)
+
+with open(sys.argv[1], 'w') as f:
+    for k in sorted(l.keys()):
+        f.write('%s = ' % k)
+        pprint.pprint(l[k], stream=f, width=sys.maxsize)
+        f.write('\n')
+
diff --git a/meta/recipes-devtools/python/python3_3.7.3.bb b/meta/recipes-devtools/python/python3_3.7.3.bb
index 8e77dbe959..3409d94ba0 100644
--- a/meta/recipes-devtools/python/python3_3.7.3.bb
+++ b/meta/recipes-devtools/python/python3_3.7.3.bb
@@ -25,6 +25,7 @@ SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.xz \
            file://0001-Makefile-fix-Issue36464-parallel-build-race-problem.patch \
 	   file://0001-bpo-36852-proper-detection-of-mips-architecture-for-.patch \
 	   file://crosspythonpath.patch \
+           file://reformat_sysconfig.py \
            "
 
 SRC_URI_append_class-native = " \
@@ -165,6 +166,12 @@ py_package_preprocess () {
                 ${PKGD}/${libdir}/python${PYTHON_MAJMIN}/_sysconfigdata*.py \
                 ${PKGD}/${bindir}/python${PYTHON_BINABI}-config
 
+        # Reformat _sysconfigdata after modifying it so that it remains
+        # reproducible
+        for c in ${PKGD}/${libdir}/python${PYTHON_MAJMIN}/_sysconfigdata*.py; do
+            python3 ${WORKDIR}/reformat_sysconfig.py $c
+        done
+
         # Recompile _sysconfigdata after modifying it
         cd ${PKGD}
         sysconfigfile=`find . -name _sysconfigdata_*.py`
-- 
cgit 1.2.3-korg