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-rwxr-xr-xtools/net/ynl/ynl-gen-c.py12
-rwxr-xr-xtools/net/ynl/ynl-regen.sh4
2 files changed, 10 insertions, 6 deletions
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py
index cbbda276f6d1..ba1c3611c6fa 100755
--- a/tools/net/ynl/ynl-gen-c.py
+++ b/tools/net/ynl/ynl-gen-c.py
@@ -1164,8 +1164,9 @@ class RenderInfo:
class CodeWriter:
- def __init__(self, nlib, out_file=None):
+ def __init__(self, nlib, out_file=None, overwrite=True):
self.nlib = nlib
+ self._overwrite = overwrite
self._nl = False
self._block_end = False
@@ -1186,8 +1187,9 @@ class CodeWriter:
return
# Avoid modifying the file if contents didn't change
self._out.flush()
- if os.path.isfile(self._out_file) and filecmp.cmp(self._out.name, self._out_file, shallow=False):
- return
+ if not self._overwrite and os.path.isfile(self._out_file):
+ if filecmp.cmp(self._out.name, self._out_file, shallow=False):
+ return
with open(self._out_file, 'w+') as out_file:
self._out.seek(0)
shutil.copyfileobj(self._out, out_file)
@@ -2516,6 +2518,8 @@ def main():
parser.add_argument('--header', dest='header', action='store_true', default=None)
parser.add_argument('--source', dest='header', action='store_false')
parser.add_argument('--user-header', nargs='+', default=[])
+ parser.add_argument('--cmp-out', action='store_true', default=None,
+ help='Do not overwrite the output file if the new output is identical to the old')
parser.add_argument('--exclude-op', action='append', default=[])
parser.add_argument('-o', dest='out_file', type=str, default=None)
args = parser.parse_args()
@@ -2543,7 +2547,7 @@ def main():
print(f'Message enum-model {parsed.msg_id_model} not supported for {args.mode} generation')
os.sys.exit(1)
- cw = CodeWriter(BaseNlLib(), args.out_file)
+ cw = CodeWriter(BaseNlLib(), args.out_file, overwrite=(not args.cmp_out))
_, spec_kernel = find_kernel_root(args.spec)
if args.mode == 'uapi' or args.header:
diff --git a/tools/net/ynl/ynl-regen.sh b/tools/net/ynl/ynl-regen.sh
index bdba24066cf1..a37304dcc88e 100755
--- a/tools/net/ynl/ynl-regen.sh
+++ b/tools/net/ynl/ynl-regen.sh
@@ -30,8 +30,8 @@ for f in $files; do
fi
echo -e "\tGEN ${params[2]}\t$f"
- $TOOL --mode ${params[2]} --${params[3]} --spec $KDIR/${params[0]} \
- $args -o $f
+ $TOOL --cmp-out --mode ${params[2]} --${params[3]} \
+ --spec $KDIR/${params[0]} $args -o $f
done
popd >>/dev/null