Added no-print flag

.changes/unreleased/Features-20220408-114118.yaml

@@ -0,0 +1,7 @@
+kind: Features
+body: Add `--no-print` global flag
+time: 2022-04-08T11:41:18.934373+01:00
+custom:
+  Author: poloaraujo
+  Issue: "4710"
+  PR: "4854"

core/dbt/context/base.py

@@ -569,7 +569,9 @@ def print(msg: str) -> str:
               {{ print("Running some_macro: " ~ arg1 ~ ", " ~ arg2) }}
             {% endmacro %}"
         """
-        print(msg)
+
+        if not flags.NO_PRINT:
+            print(msg)
         return ""
 
 

core/dbt/flags.py

@@ -35,6 +35,7 @@
 LOG_CACHE_EVENTS = None
 EVENT_BUFFER_SIZE = 100000
 QUIET = None
+NO_PRINT = None
 
 # Global CLI defaults. These flags are set from three places:
 # CLI args, environment variables, and user_config (profiles.yml).
@@ -57,6 +58,7 @@
     "LOG_CACHE_EVENTS": False,
     "EVENT_BUFFER_SIZE": 100000,
     "QUIET": False,
+    "NO_PRINT": False,
 }
 
 
@@ -106,7 +108,7 @@ def set_from_args(args, user_config):
     global STRICT_MODE, FULL_REFRESH, WARN_ERROR, USE_EXPERIMENTAL_PARSER, STATIC_PARSER
     global WRITE_JSON, PARTIAL_PARSE, USE_COLORS, STORE_FAILURES, PROFILES_DIR, DEBUG, LOG_FORMAT
     global INDIRECT_SELECTION, VERSION_CHECK, FAIL_FAST, SEND_ANONYMOUS_USAGE_STATS
-    global PRINTER_WIDTH, WHICH, LOG_CACHE_EVENTS, EVENT_BUFFER_SIZE, QUIET
+    global PRINTER_WIDTH, WHICH, LOG_CACHE_EVENTS, EVENT_BUFFER_SIZE, QUIET, NO_PRINT
 
     STRICT_MODE = False  # backwards compatibility
     # cli args without user_config or env var option
@@ -132,6 +134,7 @@ def set_from_args(args, user_config):
     LOG_CACHE_EVENTS = get_flag_value("LOG_CACHE_EVENTS", args, user_config)
     EVENT_BUFFER_SIZE = get_flag_value("EVENT_BUFFER_SIZE", args, user_config)
     QUIET = get_flag_value("QUIET", args, user_config)
+    NO_PRINT = get_flag_value("NO_PRINT", args, user_config)
 
 
 def get_flag_value(flag, args, user_config):
@@ -185,4 +188,5 @@ def get_flag_dict():
         "log_cache_events": LOG_CACHE_EVENTS,
         "event_buffer_size": EVENT_BUFFER_SIZE,
         "quiet": QUIET,
+        "no_print": NO_PRINT,
     }

core/dbt/main.py

@@ -1088,6 +1088,15 @@ def parse_args(args, cls=DBTArgumentParser):
         """,
     )
 
+    p.add_argument(
+        "--no-print",
+        action="store_true",
+        default=None,
+        help="""
+        Suppress all {{ print() }} macro calls.
+        """,
+    )
+
     subs = p.add_subparsers(title="Available sub-commands")
 
     base_subparser = _build_base_subparser()

test/unit/test_flags.py

@@ -224,3 +224,10 @@ def test__flags(self):
         self.assertEqual(flags.QUIET, True)
         # cleanup
         self.user_config.quiet = None
+
+        # no_print
+        self.user_config.no_print = True
+        flags.set_from_args(self.args, self.user_config)
+        self.assertEqual(flags.NO_PRINT, True)
+        # cleanup
+        self.user_config.no_print = None