[PATCH 6/8] autoregen.py: print executed commands on stdout

[Simon Marchi <simon.marchi@efficios.com>]

This allows seeing what commands the buildbot executes exactly.  It will
help whenever there is a difference in the generated files between what
a developer gets locally and what the buildbot gets.
---
 builder/containers/autoregen.py | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/builder/containers/autoregen.py b/builder/containers/autoregen.py
index 6560077a406b..ff6939b66105 100755
--- a/builder/containers/autoregen.py
+++ b/builder/containers/autoregen.py
@@ -41,6 +41,15 @@ SKIP_DIRS = [
 ]
 
 
+# Run the shell command CMD.
+#
+# Print the command on stdout prior to running it.
+def run_shell(cmd: str):
+    cmd = f"{ENV} {cmd}"
+    print(f"+ {cmd}")
+    subprocess.check_output(f"{ENV} {cmd}", shell=True, encoding="utf8")
+
+
 config_folders: list[Path] = []
 
 for root, _, files in os.walk("."):
@@ -70,23 +79,17 @@ for folder in sorted(config_folders):
             include_arg = "-I../.."
             include_arg2 = "-I../../config"
 
-        subprocess.check_output(
-            f"{ENV} {ACLOCAL_BIN} --force {include_arg} {include_arg2}",
-            shell=True,
-            encoding="utf8",
-        )
+        run_shell(f"{ACLOCAL_BIN} --force {include_arg} {include_arg2}")
 
     if (folder / "config.in").is_file() or any(
         True for line in configure_lines if line.startswith("AC_CONFIG_HEADERS")
     ):
-        subprocess.check_output(
-            f"{ENV} {AUTOHEADER_BIN} -f", shell=True, encoding="utf8"
-        )
+        run_shell(f"{AUTOHEADER_BIN} -f")
 
     # apparently automake is somehow unstable -> skip it for gotools
     if any(
         True for line in configure_lines if line.startswith("AM_INIT_AUTOMAKE")
     ) and not str(folder).endswith("gotools"):
-        subprocess.check_output(f"{ENV} {AUTOMAKE_BIN} -f", shell=True, encoding="utf8")
+        run_shell(f"{AUTOMAKE_BIN} -f")
 
-    subprocess.check_output(f"{ENV} {AUTOCONF_BIN} -f", shell=True, encoding="utf8")
+    run_shell(f"{AUTOCONF_BIN} -f")
-- 
2.44.0