[Buildroot] [PATCH v4 2/2] support/scripts/pycompile: add --verbose option

[Robin Jarry <robin.jarry@6wind.com>]

Add a new option that prints the (runtime) path of compiled .py files
when VERBOSE=1 is set.

Signed-off-by: Robin Jarry <robin.jarry@6wind.com>
---
 package/python/python.mk     |  1 +
 package/python3/python3.mk   |  1 +
 support/scripts/pycompile.py | 11 +++++++++--
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/package/python/python.mk b/package/python/python.mk
index 3fe5ecd00462..4bff5f0c7c66 100644
--- a/package/python/python.mk
+++ b/package/python/python.mk
@@ -263,6 +263,7 @@ define PYTHON_CREATE_PYC_FILES
 	$(HOST_DIR)/bin/python$(PYTHON_VERSION_MAJOR) \
 		$(TOPDIR)/support/scripts/pycompile.py \
 		$(if $(BR2_REPRODUCIBLE),--force) \
+		$(if $(VERBOSE),--verbose) \
 		--strip-root $(TARGET_DIR) \
 		$(TARGET_DIR)/usr/lib/python$(PYTHON_VERSION_MAJOR)
 endef
diff --git a/package/python3/python3.mk b/package/python3/python3.mk
index 4c8a12c7a3ad..52c548accc9b 100644
--- a/package/python3/python3.mk
+++ b/package/python3/python3.mk
@@ -280,6 +280,7 @@ define PYTHON3_CREATE_PYC_FILES
 	$(HOST_DIR)/bin/python$(PYTHON3_VERSION_MAJOR) \
 		$(TOPDIR)/support/scripts/pycompile.py \
 		$(if $(BR2_REPRODUCIBLE),--force) \
+		$(if $(VERBOSE),--verbose) \
 		--strip-root $(TARGET_DIR) \
 		$(TARGET_DIR)/usr/lib/python$(PYTHON3_VERSION_MAJOR)
 endef
diff --git a/support/scripts/pycompile.py b/support/scripts/pycompile.py
index 04193f4a02c2..55c09fe688d6 100644
--- a/support/scripts/pycompile.py
+++ b/support/scripts/pycompile.py
@@ -31,7 +31,7 @@ else:
     PYC_HEADER_ARGS += (0,)  # zero hash, we use timestamp invalidation
 
 
-def compile_one(host_path, strip_root=None, force=False):
+def compile_one(host_path, strip_root=None, force=False, verbose=False):
     """
     Compile a .py file into a .pyc file located next to it.
 
@@ -42,6 +42,8 @@ def compile_one(host_path, strip_root=None, force=False):
         files.
     :arg force:
         Recompile even if already up-to-date.
+    :arg verbose:
+        Print compiled file paths.
     """
     if os.path.islink(host_path) or not os.path.isfile(host_path):
         return  # only compile real files
@@ -69,6 +71,9 @@ def compile_one(host_path, strip_root=None, force=False):
     else:
         runtime_path = host_path
 
+    if verbose:
+        print("  PYC  {}".format(runtime_path))
+
     # will raise an error if the file cannot be compiled
     py_compile.compile(host_path, cfile=host_path + "c",
                        dfile=runtime_path, doraise=True)
@@ -95,6 +100,8 @@ def main():
                         """)
     parser.add_argument("--force", action="store_true",
                         help="Force compilation even if already compiled")
+    parser.add_argument("--verbose", action="store_true",
+                        help="Print compiled files")
 
     args = parser.parse_args()
 
@@ -105,7 +112,7 @@ def main():
             for parent, _, files in os.walk(d):
                 for f in files:
                     compile_one(os.path.join(parent, f), args.strip_root,
-                                args.force)
+                                args.force, args.verbose)
 
     except Exception as e:
         print("error: {}".format(e))
-- 
2.28.0