[GR-71754] Improve sigtest help output and warn if check is run with less than "all".

PullRequest: mx/1992

Author: wirthi

common.json

@@ -4,7 +4,7 @@
     "Jsonnet files should not include this file directly but use ci/common.jsonnet instead."
   ],
 
-  "mx_version": "7.68.4",
+  "mx_version": "7.68.5",
 
   "COMMENT.jdks": "When adding or removing JDKs keep in sync with JDKs in ci/common.jsonnet",
   "jdks": {

src/mx/_impl/mx_sigtest.py

@@ -45,7 +45,9 @@ def sigtest(args, suite=None, projects=None):
     """
     parser = ArgumentParser(prog='mx sigtest')
     parser.add_argument('--generate', action='store_true', help='Generates signature files for projects with API')
-    parser.add_argument('--check', action='store', help='Check <binary|all> against existing signature files', default='binary')
+    parser.add_argument('--check', action='store', help='Check <binary|all> against existing signature files.\n' +
+                                                        '\'binary\' (default) checks for signature compatibility.\n'
+                                                        '\'all\' checks for all changes in signatures, including additions.', default='binary')
     parser.add_argument('-H', '--human', action='store_true', help='Produce human readable output')
 
     args = parser.parse_args(args)
@@ -113,6 +115,8 @@ def _sigtest_check(checktype, args, suite=None, projects=None):
         return 1
     javaCompliance = max([p.javaCompliance for p in nonTestProjects])
 
+    if checktype != 'all':
+        print('Running sigtest with checktype=' + checktype + '. For a full check, pass \'--check all\'.')
     class OutputCapture:
         def __init__(self):
             self.data = ""

src/mx/mx_version.py

@@ -1,2 +1,2 @@
 # The version must be updated for every PR (checked in CI) and the comment should reflect the PR's issue
-version = "7.68.5"  # GR-70638 - benchmarking time tracker
+version = "7.68.6"  # GR-71754 - Improve sigtest help output and warn if check is run with less than "all".