From: Clark Williams <williams@xxxxxxxxxx>
redhat: python replacement for merge.pl
Replace the (still functioning) merge.pl in redhat/configs with a
python version (merge.py) for ease of maintenance.
Signed-off-by: Clark Williams <williams@xxxxxxxxxx>
diff --git a/redhat/configs/build_configs.sh b/redhat/configs/build_configs.sh
index blahblah..blahblah 100755
--- a/redhat/configs/build_configs.sh
+++ b/redhat/configs/build_configs.sh
@@ -84,7 +84,7 @@ function merge_configs()
test -n "$skip_if_missing" && test ! -e "$cfile" && continue
- if ! perl merge.pl "$cfile" config-merging."$count" > config-merged."$count"; then
+ if ! ./merge.py "$cfile" config-merging."$count" > config-merged."$count"; then
die "Failed to merge $cfile"
fi
mv config-merged."$count" config-merging."$count"
diff --git a/redhat/configs/merge.py b/redhat/configs/merge.py
new file mode 100755
index blahblah..blahblah 100755
--- /dev/null
+++ b/redhat/configs/merge.py
@@ -0,0 +1,58 @@
+#!/usr/bin/python3
+# SPDX-License-Identifier: GPL-2.0
+# Author: Clark Williams <williams@xxxxxxxxxx>
+# Copyright (C) 2022 Red Hat, Inc.
+#
+# merge.py - a direct replacement for merge.pl in the redhat/configs directory
+#
+# invocation: python merge.py overrides baseconfig
+#
+# Both input files are kernel config files, where overides is config overides
+# to the baseconfig file. Both are read into python dictionaries with the
+# keys being the config name and the values being the config file text
+
+# The script iterates through the overrides keys adding/replacing the contents
+# of the baseconfig values and then outputs the new baseconfig to stdout.
+#
+
+import sys
+import os.path
+
+def usage(msg):
+ print(msg)
+ print("usage: merge.py overrides baseconfig")
+ sys.exit(1)
+
+# read a config file and return a dictionary of the contents
+def read_config_file(cfgfile):
+ configs = {}
+ for l in open(cfgfile).readlines():
+ if len(l) == 0: continue
+ if l.startswith("# CONFIG_"):
+ configs[l.split()[1]] = l
+ continue
+ if l.startswith("CONFIG_"):
+ configs[l.split('=')[0]] = l
+ continue
+ return configs
+
+
+if len(sys.argv) < 3: usage("must have two input files")
+
+# read in the overides file
+if not os.path.exists(sys.argv[1]):
+ usage("overrides config file %s does not exist!" % sys.argv[1])
+overrides = read_config_file(sys.argv[1])
+
+# read in the base config file
+if not os.path.exists(sys.argv[2]):
+ usage("base config file %s does not exist!" % sys.argv[2])
+baseconfigs = read_config_file(sys.argv[2])
+
+# iterate over the overrides, replacing values in the base config
+for v in overrides.keys():
+ baseconfigs[v] = overrides[v]
+
+# print the new config to stdout
+for v in baseconfigs.keys():
+ print(baseconfigs[v])
--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2117
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