From 827eae2750e0ad0628fb76ac82ddb7de1edee19c Mon Sep 17 00:00:00 2001
From: Leopoldo Araujo <68853890+poloaraujo@users.noreply.github.com>
Date: Mon, 11 Apr 2022 19:48:34 +0100
Subject: [PATCH] Added no-print flag (#4854)

* Added no-print flag

* Updated changelog

* Updated changelog

* Removed changes from CHANGELOG.md

* Updated CHANGELOG.MD with changie

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

Co-authored-by: Emily Rockman <ebuschang@gmail.com>

Co-authored-by: Emily Rockman <ebuschang@gmail.com>
---
 .changes/unreleased/Features-20220408-114118.yaml | 7 +++++++
 core/dbt/context/base.py                          | 4 +++-
 core/dbt/flags.py                                 | 6 +++++-
 core/dbt/main.py                                  | 9 +++++++++
 test/unit/test_flags.py                           | 7 +++++++
 5 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100644 .changes/unreleased/Features-20220408-114118.yaml

diff --git a/.changes/unreleased/Features-20220408-114118.yaml b/.changes/unreleased/Features-20220408-114118.yaml
new file mode 100644
index 00000000000..d98727019b7
--- /dev/null
+++ b/.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"
diff --git a/core/dbt/context/base.py b/core/dbt/context/base.py
index 99336655ad2..355937bb4fd 100644
--- a/core/dbt/context/base.py
+++ b/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 ""
 
 
diff --git a/core/dbt/flags.py b/core/dbt/flags.py
index e0e16244649..263b58c59f7 100644
--- a/core/dbt/flags.py
+++ b/core/dbt/flags.py
@@ -35,6 +35,7 @@
 LOG_CACHE_EVENTS = None
 EVENT_BUFFER_SIZE = 100000
 QUIET = None
+NO_PRINT = None
 
 _NON_BOOLEAN_FLAGS = [
     "LOG_FORMAT",
@@ -67,6 +68,7 @@
     "LOG_CACHE_EVENTS": False,
     "EVENT_BUFFER_SIZE": 100000,
     "QUIET": False,
+    "NO_PRINT": False,
 }
 
 
@@ -116,7 +118,7 @@ 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
@@ -142,6 +144,7 @@ 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)
 
     _set_overrides_from_env()
 
@@ -222,4 +225,5 @@ def get_flag_dict():
         "log_cache_events": LOG_CACHE_EVENTS,
         "event_buffer_size": EVENT_BUFFER_SIZE,
         "quiet": QUIET,
+        "no_print": NO_PRINT,
     }
diff --git a/core/dbt/main.py b/core/dbt/main.py
index fb926907b59..df35300651d 100644
--- a/core/dbt/main.py
+++ b/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()
diff --git a/test/unit/test_flags.py b/test/unit/test_flags.py
index 8415540ffdd..a0f4ea8cc33 100644
--- a/test/unit/test_flags.py
+++ b/test/unit/test_flags.py
@@ -228,3 +228,10 @@ 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