tools: Refactor full help printing
Collect the code for printing the full help message of patman, buildman
and binman into a single function in patman.tools.
Signed-off-by: Paul Barker <paul.barker@sancloud.com>
diff --git a/tools/patman/tools.py b/tools/patman/tools.py
index 877e37c..9688226 100644
--- a/tools/patman/tools.py
+++ b/tools/patman/tools.py
@@ -581,3 +581,16 @@
hex value of size, or 'None' if the value is None
"""
return 'None' if val is None else '%#x' % len(val)
+
+def PrintFullHelp(fname):
+ """Print the full help message for a tool using an appropriate pager.
+
+ Args:
+ fname: Path to a file containing the full help message
+ """
+ pager = os.getenv('PAGER')
+ if not pager:
+ pager = shutil.which('less')
+ if not pager:
+ pager = 'more'
+ command.Run(pager, fname)