Add --ignore to create-index as alias of --if-not-exists, refs #450

docs/cli-reference.rst

@@ -841,12 +841,12 @@ See :ref:`cli_create_index`.
           sqlite-utils create-index chickens.db chickens -- -name
 
     Options:
-      --name TEXT            Explicit name for the new index
-      --unique               Make this a unique index
-      --if-not-exists        Ignore if index already exists
-      --analyze              Run ANALYZE after creating the index
-      --load-extension TEXT  SQLite extensions to load
-      -h, --help             Show this message and exit.
+      --name TEXT                Explicit name for the new index
+      --unique                   Make this a unique index
+      --if-not-exists, --ignore  Ignore if index already exists
+      --analyze                  Run ANALYZE after creating the index
+      --load-extension TEXT      SQLite extensions to load
+      -h, --help                 Show this message and exit.
 
 
 enable-fts

sqlite_utils/cli.py

@@ -539,6 +539,7 @@ def index_foreign_keys(path, load_extension):
 @click.option("--unique", help="Make this a unique index", default=False, is_flag=True)
 @click.option(
     "--if-not-exists",
+    "--ignore",
     help="Ignore if index already exists",
     default=False,
     is_flag=True,

tests/test_cli.py

@@ -214,13 +214,12 @@ def test_create_index(db_path):
     ] == db["Gosh2"].indexes
     # Trying to create the same index should fail
     assert 0 != CliRunner().invoke(cli.cli, create_index_unique_args).exit_code
-    # ... unless we use --if-not-exists
-    assert (
-        0
-        == CliRunner()
-        .invoke(cli.cli, create_index_unique_args + ["--if-not-exists"])
-        .exit_code
-    )
+    # ... unless we use --if-not-exists or --ignore
+    for option in ("--if-not-exists", "--ignore"):
+        assert (
+            CliRunner().invoke(cli.cli, create_index_unique_args + [option]).exit_code
+            == 0
+        )
 
 
 def test_create_index_analyze(db_path):