From 98113394d9c417ceb530a8a752f15721c2cccd65 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Sat, 28 Mar 2026 23:15:06 +0100
Subject: [PATCH 01/25] Tests: Replace some single quotes with doubles

---
 features/db-search.feature | 48 +++++++++++++++++++-------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/features/db-search.feature b/features/db-search.feature
index 9856854a..a0217cfd 100644
--- a/features/db-search.feature
+++ b/features/db-search.feature
@@ -679,19 +679,19 @@ Feature: Search through the database
       :あいうえおかきくけこさしすせとたちつてと
       """
 
-    When I run `wp db search 'ppppp' --before_context=3 --after_context=4`
+    When I run `wp db search "ppppp" --before_context=3 --after_context=4`
     Then STDOUT should contain:
       """
       :ムnöppppp
       """
 
-    When I run `wp db search 'ppppp' --before_context=1 --after_context=1`
+    When I run `wp db search "ppppp" --before_context=1 --after_context=1`
     Then STDOUT should contain:
       """
       :öppppp
       """
 
-    When I run `wp db search 'ムn' --before_context=2 --after_context=1`
+    When I run `wp db search "ムn" --before_context=2 --after_context=1`
     Then STDOUT should contain:
       """
       :llムnö
@@ -701,7 +701,7 @@ Feature: Search through the database
       :llムnöp
       """
 
-    When I run `wp db search 'ムn' --before_context=2 --after_context=2`
+    When I run `wp db search "ムn" --before_context=2 --after_context=2`
     Then STDOUT should contain:
       """
       :llムnöp
@@ -720,7 +720,7 @@ Feature: Search through the database
     # Note ö is o with combining umlaut.
     And I run `wp option update regextst_combining 'lllllムnöppppp'`
 
-    When I run `wp db search 'https?:\/\/example.c.m' --regex`
+    When I run `wp db search "https?:\/\/example.c.m" --regex`
     Then STDOUT should contain:
       """
       wp_options:option_value
@@ -731,10 +731,10 @@ Feature: Search through the database
       [...]
       """
 
-    When I run `wp db search 'unfindable' --regex`
+    When I run `wp db search "unfindable" --regex`
     Then STDOUT should be empty
 
-    When I try `wp db search 'unfindable' --regex --regex-flags='abcd'`
+    When I try `wp db search "unfindable" --regex --regex-flags='abcd'`
     Then STDERR should contain:
       """
       unfindable
@@ -745,42 +745,42 @@ Feature: Search through the database
       """
     And the return code should be 1
 
-    When I try `wp db search 'unfindable' --regex --regex-delimiter='1'`
+    When I try `wp db search "unfindable" --regex --regex-delimiter='1'`
     Then STDERR should be:
       """
       Error: The regex '1unfindable1' fails.
       """
     And the return code should be 1
 
-    When I try `wp db search 'regex error)' --regex`
+    When I try `wp db search "regex error)" --regex`
     Then STDERR should be:
       """
       Error: The regex pattern 'regex error)' with default delimiter 'chr(1)' and no flags fails.
       """
     And the return code should be 1
 
-    When I try `wp db search 'regex error)' --regex --regex-flags=u`
+    When I try `wp db search "regex error)" --regex --regex-flags=u`
     Then STDERR should be:
       """
       Error: The regex pattern 'regex error)' with default delimiter 'chr(1)' and flags 'u' fails.
       """
     And the return code should be 1
 
-    When I try `wp db search 'regex error)' --regex --regex-delimiter=/`
+    When I try `wp db search "regex error)" --regex --regex-delimiter=/`
     Then STDERR should be:
       """
       Error: The regex '/regex error)/' fails.
       """
     And the return code should be 1
 
-    When I try `wp db search 'regex error)' --regex --regex-delimiter=/ --regex-flags=u`
+    When I try `wp db search "regex error)" --regex --regex-delimiter=/ --regex-flags=u`
     Then STDERR should be:
       """
       Error: The regex '/regex error)/u' fails.
       """
     And the return code should be 1
 
-    When I run `wp db search '[0-9é]+?https:' --regex --regex-flags=u --before_context=0 --after_context=0`
+    When I run `wp db search "[0-9é]+?https:" --regex --regex-flags=u --before_context=0 --after_context=0`
     Then STDOUT should contain:
       """
       :1234567890123456789éhttps:
@@ -794,7 +794,7 @@ Feature: Search through the database
       [...]
       """
 
-    When I run `wp db search 'htt(p(s):)\/\/' --regex --before_context=1 --after_context=3`
+    When I run `wp db search "htt(p(s):)\/\/" --regex --before_context=1 --after_context=3`
     Then STDOUT should contain:
       """
       :あhttps://reg [...] éhttps://reg
@@ -804,7 +804,7 @@ Feature: Search through the database
       rege
       """
 
-    When I run `wp db search 'https://' --regex --regex-delimiter=# --before_context=9 --after_context=11`
+    When I run `wp db search "https://" --regex --regex-delimiter=# --before_context=9 --after_context=11`
     Then STDOUT should contain:
       """
       :2345é789あhttps://regextst.co [...] 23456789éhttps://regextst.co
@@ -814,10 +814,10 @@ Feature: Search through the database
       regextst.com
       """
 
-    When I run `wp db search 'httPs://' --regex --regex-delimiter=# --before_context=3 --after_context=0`
+    When I run `wp db search "httPs://" --regex --regex-delimiter=# --before_context=3 --after_context=0`
     Then STDOUT should be empty
 
-    When I run `wp db search 'httPs://' --regex --regex-flags=i --regex-delimiter=# --before_context=3 --after_context=0`
+    When I run `wp db search "httPs://" --regex --regex-flags=i --regex-delimiter=# --before_context=3 --after_context=0`
     Then STDOUT should contain:
       """
       :89あhttps:// [...] 89éhttps://
@@ -827,19 +827,19 @@ Feature: Search through the database
       https://r
       """
 
-    When I run `wp db search 'ppppp' --regex --before_context=3 --after_context=4`
+    When I run `wp db search "ppppp" --regex --before_context=3 --after_context=4`
     Then STDOUT should contain:
       """
       :ムnöppppp
       """
 
-    When I run `wp db search 'ppppp' --regex --before_context=1 --after_context=1`
+    When I run `wp db search "ppppp" --regex --before_context=1 --after_context=1`
     Then STDOUT should contain:
       """
       :öppppp
       """
 
-    When I run `wp db search 'ムn' --before_context=2 --after_context=1`
+    When I run `wp db search "ムn" --before_context=2 --after_context=1`
     Then STDOUT should contain:
       """
       :llムnö
@@ -849,7 +849,7 @@ Feature: Search through the database
       :llムnöp
       """
 
-    When I run `wp db search 'ムn' --regex --before_context=2 --after_context=2`
+    When I run `wp db search "ムn" --regex --before_context=2 --after_context=2`
     Then STDOUT should contain:
       """
       :llムnöp
@@ -859,7 +859,7 @@ Feature: Search through the database
       :llムnöpp
       """
 
-    When I run `wp db search 't\.c' --regex --before_context=1 --after_context=1`
+    When I run `wp db search "t\.c" --regex --before_context=1 --after_context=1`
     Then STDOUT should contain:
       """
       :st.co [...] st.co [...] st.co [...] 0t.co
@@ -869,7 +869,7 @@ Feature: Search through the database
       st.com
       """
 
-    When I run `wp db search 'https://' --regex`
+    When I run `wp db search "https://" --regex`
     Then the return code should be 0
 
   Scenario: Search with output options
@@ -1060,7 +1060,7 @@ Feature: Search through the database
     When I run `wp db query "SOURCE esc_sql_ident.sql;"`
     Then STDERR should be empty
 
-    When I run `wp db search 'v_v' TABLE --all-tables`
+    When I run `wp db search "v_v" TABLE --all-tables`
     Then STDOUT should be:
       """
       TABLE:VALUES

From 21c36a08bd978bcf0c4c62e0bb16e6cd1589e52f Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Sat, 28 Mar 2026 23:15:32 +0100
Subject: [PATCH 02/25] Use `force_env_on_nix_systems`

---
 src/DB_Command_SQLite.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 342d84ea..d0e98566 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -20,7 +20,7 @@ protected function is_sqlite3_available() {
 		static $available = null;
 
 		if ( null === $available ) {
-			$result    = \WP_CLI\Process::create( '/usr/bin/env sqlite3 --version', null, null )->run();
+			$result    = \WP_CLI\Process::create( Utils\force_env_on_nix_systems( '/usr/bin/env sqlite3 --version' ), null, null )->run();
 			$available = 0 === $result->return_code;
 		}
 

From 79093b350143db6b519ed7faf4613a75416b4b19 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:12:53 +0200
Subject: [PATCH 03/25] Do not use `/tmp`

---
 features/db.feature | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/features/db.feature b/features/db.feature
index 493b99c1..11190af5 100644
--- a/features/db.feature
+++ b/features/db.feature
@@ -256,7 +256,7 @@ Feature: Perform database operations
       1
       """
 
-    When I run `wp db export /tmp/wp-cli-behat.sql`
+    When I run `wp db export wp-cli-behat.sql`
     Then STDOUT should contain:
       """
       Success: Exported
@@ -283,7 +283,7 @@ Feature: Perform database operations
     When I try `wp post list --format=count`
     Then STDERR should not be empty
 
-    When I run `wp db import /tmp/wp-cli-behat.sql`
+    When I run `wp db import wp-cli-behat.sql`
     Then STDOUT should contain:
       """
       Success: Imported
@@ -312,7 +312,7 @@ Feature: Perform database operations
     When I run `wp db create`
     Then STDOUT should not be empty
 
-    When I run `wp db export /tmp/wp-cli-behat.sql`
+    When I run `wp db export wp-cli-behat.sql`
     Then STDOUT should contain:
       """
       Success: Exported
@@ -434,7 +434,7 @@ Feature: Perform database operations
       1
       """
 
-    When I run `wp db export /tmp/wp-cli-sqlite-behat.sql`
+    When I run `wp db export wp-cli-sqlite-behat.sql`
     Then STDOUT should contain:
       """
       Success: Exported
@@ -446,7 +446,7 @@ Feature: Perform database operations
       Success: Database reset
       """
 
-    When I run `wp db import /tmp/wp-cli-sqlite-behat.sql`
+    When I run `wp db import wp-cli-sqlite-behat.sql`
     Then STDOUT should contain:
       """
       Success: Imported

From 707c08ab0648810b2dd0b1e07c0533e75a53c283 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:13:05 +0200
Subject: [PATCH 04/25] Do not use `/usr/bin/env`

---
 src/DB_Command_SQLite.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index d0e98566..4fdb8c85 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -20,7 +20,7 @@ protected function is_sqlite3_available() {
 		static $available = null;
 
 		if ( null === $available ) {
-			$result    = \WP_CLI\Process::create( Utils\force_env_on_nix_systems( '/usr/bin/env sqlite3 --version' ), null, null )->run();
+			$result    = \WP_CLI\Process::create( Utils\force_env_on_nix_systems( 'sqlite3' ) . ' --version', null, null )->run();
 			$available = 0 === $result->return_code;
 		}
 

From 3f73251d0355053ee256c15d1c8685518c5e7b04 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:45:19 +0200
Subject: [PATCH 05/25] Work around missing dbstat table on sqlite

---
 src/DB_Command.php | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/DB_Command.php b/src/DB_Command.php
index 78cee981..590f78b6 100644
--- a/src/DB_Command.php
+++ b/src/DB_Command.php
@@ -1210,12 +1210,20 @@ public function size( $args, $assoc_args ) {
 
 				// Get the table size.
 				if ( $is_sqlite ) {
-					$table_bytes = $wpdb->get_var(
-						$wpdb->prepare(
-							'SELECT SUM(pgsize) as size_in_bytes FROM dbstat where name = %s LIMIT 1',
-							$table_name
-						)
-					);
+					static $has_dbstat = null;
+					if ( null === $has_dbstat ) {
+						$has_dbstat = ! empty( $wpdb->get_results( "SELECT 1 FROM sqlite_master WHERE type='table' AND name='dbstat' LIMIT 1;" ) );
+					}
+
+					$table_bytes = 0;
+					if ( $has_dbstat ) {
+						$table_bytes = $wpdb->get_var(
+							$wpdb->prepare(
+								'SELECT SUM(pgsize) as size_in_bytes FROM dbstat where name = %s LIMIT 1',
+								$table_name
+							)
+						);
+					}
 				} else {
 					$table_bytes = $wpdb->get_var(
 						$wpdb->prepare(

From 8be5f0f456751cbf51922936d693ee5d18de96cd Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:46:28 +0200
Subject: [PATCH 06/25] trim & slash

---
 src/DB_Command_SQLite.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 4fdb8c85..26159ef5 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -320,7 +320,8 @@ protected function sqlite_export( $file, $assoc_args ) {
 				WP_CLI::error( 'Could not export database' );
 			}
 
-			$all_tables = explode( "\n", $result->stdout );
+			$all_tables = array_map( 'trim', explode( "\n", $result->stdout ) );
+			$all_tables = array_filter( $all_tables );
 
 			$exclude_tables = array_diff( $all_tables, $include_tables );
 		}
@@ -431,6 +432,7 @@ protected function sqlite_import( $file, $assoc_args ) {
 		$contents = preg_replace( '/\bCREATE UNIQUE INDEX (?!IF NOT EXISTS\b)/i', 'CREATE UNIQUE INDEX IF NOT EXISTS ', (string) $contents );
 
 		$import_file = tempnam( sys_get_temp_dir(), 'temp.db' );
+		$import_file = str_replace( '\\', '/', $import_file );
 		file_put_contents( $import_file, $contents );
 
 		// Build sqlite3 command.

From 655976fceb767aaa0597de03bca9d300c1e9d8f7 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:46:37 +0200
Subject: [PATCH 07/25] use different regex delimiter

---
 features/db-search.feature | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/features/db-search.feature b/features/db-search.feature
index a0217cfd..e34340d6 100644
--- a/features/db-search.feature
+++ b/features/db-search.feature
@@ -766,17 +766,17 @@ Feature: Search through the database
       """
     And the return code should be 1
 
-    When I try `wp db search "regex error)" --regex --regex-delimiter=/`
+    When I try `wp db search "regex error)" --regex --regex-delimiter=#`
     Then STDERR should be:
       """
-      Error: The regex '/regex error)/' fails.
+      Error: The regex '#regex error)#' fails.
       """
     And the return code should be 1
 
-    When I try `wp db search "regex error)" --regex --regex-delimiter=/ --regex-flags=u`
+    When I try `wp db search "regex error)" --regex --regex-delimiter=# --regex-flags=u`
     Then STDERR should be:
       """
-      Error: The regex '/regex error)/u' fails.
+      Error: The regex '#regex error)#u' fails.
       """
     And the return code should be 1
 

From 6f3019222d701495d7b684170319be7905cdce22 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:47:52 +0200
Subject: [PATCH 08/25] Update features/db-search.feature

---
 features/db-search.feature | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/features/db-search.feature b/features/db-search.feature
index e34340d6..d54f5d42 100644
--- a/features/db-search.feature
+++ b/features/db-search.feature
@@ -745,7 +745,7 @@ Feature: Search through the database
       """
     And the return code should be 1
 
-    When I try `wp db search "unfindable" --regex --regex-delimiter='1'`
+    When I try `wp db search "unfindable" --regex --regex-delimiter="1"`
     Then STDERR should be:
       """
       Error: The regex '1unfindable1' fails.

From 915812a381009a60caf8ffbb512673ae98268c17 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 18:48:01 +0200
Subject: [PATCH 09/25] Update features/db-search.feature

---
 features/db-search.feature | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/features/db-search.feature b/features/db-search.feature
index d54f5d42..daeaca79 100644
--- a/features/db-search.feature
+++ b/features/db-search.feature
@@ -734,7 +734,7 @@ Feature: Search through the database
     When I run `wp db search "unfindable" --regex`
     Then STDOUT should be empty
 
-    When I try `wp db search "unfindable" --regex --regex-flags='abcd'`
+    When I try `wp db search "unfindable" --regex --regex-flags="abcd"`
     Then STDERR should contain:
       """
       unfindable

From f4514d313667f2110a0cd9c106525e95d910a593 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 21:12:24 +0200
Subject: [PATCH 10/25] revert dbstat change, skip for windows instead

---
 features/db-size.feature |  2 ++
 src/DB_Command.php       | 20 ++++++--------------
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/features/db-size.feature b/features/db-size.feature
index b21d9949..72a29344 100644
--- a/features/db-size.feature
+++ b/features/db-size.feature
@@ -81,6 +81,8 @@ Feature: Display database size
       KB
       """
 
+  # On CI, SQLite on Windows is missing the dbstat extension.
+  @skip-windows
   Scenario: Display only table sizes in a human readable format for a WordPress install
     Given a WP install
 
diff --git a/src/DB_Command.php b/src/DB_Command.php
index 590f78b6..78cee981 100644
--- a/src/DB_Command.php
+++ b/src/DB_Command.php
@@ -1210,20 +1210,12 @@ public function size( $args, $assoc_args ) {
 
 				// Get the table size.
 				if ( $is_sqlite ) {
-					static $has_dbstat = null;
-					if ( null === $has_dbstat ) {
-						$has_dbstat = ! empty( $wpdb->get_results( "SELECT 1 FROM sqlite_master WHERE type='table' AND name='dbstat' LIMIT 1;" ) );
-					}
-
-					$table_bytes = 0;
-					if ( $has_dbstat ) {
-						$table_bytes = $wpdb->get_var(
-							$wpdb->prepare(
-								'SELECT SUM(pgsize) as size_in_bytes FROM dbstat where name = %s LIMIT 1',
-								$table_name
-							)
-						);
-					}
+					$table_bytes = $wpdb->get_var(
+						$wpdb->prepare(
+							'SELECT SUM(pgsize) as size_in_bytes FROM dbstat where name = %s LIMIT 1',
+							$table_name
+						)
+					);
 				} else {
 					$table_bytes = $wpdb->get_var(
 						$wpdb->prepare(

From beef812fdedcd619e36962f0d000df33c3ab2673 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 21:15:05 +0200
Subject: [PATCH 11/25] try to close

---
 src/DB_Command_SQLite.php | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 26159ef5..79f91fef 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -149,6 +149,11 @@ protected function sqlite_drop() {
 			WP_CLI::error( 'Database does not exist.' );
 		}
 
+		global $wpdb;
+		if ( $wpdb instanceof \wpdb ) {
+			$wpdb->close();
+		}
+
 		if ( ! unlink( $db_path ) ) {
 			WP_CLI::error( "Could not delete database file: {$db_path}" );
 		}
@@ -168,6 +173,11 @@ protected function sqlite_reset() {
 
 		// Delete if exists.
 		if ( file_exists( $db_path ) ) {
+			global $wpdb;
+			if ( $wpdb instanceof \wpdb ) {
+				$wpdb->close();
+			}
+
 			if ( ! unlink( $db_path ) ) {
 				WP_CLI::error( "Could not delete database file: {$db_path}" );
 			}

From ff29cd752f12223d492b1e212f829d505cdb759a Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 21:31:31 +0200
Subject: [PATCH 12/25] slashes

---
 src/DB_Command_SQLite.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 79f91fef..3961fa24 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -302,6 +302,7 @@ protected function sqlite_export( $file, $assoc_args ) {
 		if ( false === $temp_db ) {
 			WP_CLI::error( 'Could not create temporary database file for export.' );
 		}
+		$temp_db = str_replace( '\\', '/', $temp_db );
 
 		if ( ! copy( $db_path, $temp_db ) ) {
 			// Clean up temporary file if the copy operation fails.
@@ -412,6 +413,7 @@ protected function sqlite_import( $file, $assoc_args ) {
 		if ( ! $db_path ) {
 			WP_CLI::error( 'Could not determine the database path.' );
 		}
+		$db_path = str_replace( '\\', '/', $db_path );
 
 		if ( ! file_exists( $db_path ) ) {
 			WP_CLI::error( 'Database does not exist.' );

From bd0113cd20f8e329bb0ffbcfa29afda5031631d4 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 21:32:57 +0200
Subject: [PATCH 13/25] skip another test

---
 features/db-search.feature | 1 +
 1 file changed, 1 insertion(+)

diff --git a/features/db-search.feature b/features/db-search.feature
index daeaca79..f5e3225e 100644
--- a/features/db-search.feature
+++ b/features/db-search.feature
@@ -982,6 +982,7 @@ Feature: Search through the database
     And STDOUT should match /\d tables? skipped:.*wp_term_relationships/
     And STDERR should be empty
 
+  @skip-windows
   Scenario: Search with custom colors
     Given a WP install
 

From ac63df0eda525c6580296d0c0ac867ce23dcc58e Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 22:05:05 +0200
Subject: [PATCH 14/25] more skips

---
 features/db-size.feature | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/features/db-size.feature b/features/db-size.feature
index 72a29344..17f0d687 100644
--- a/features/db-size.feature
+++ b/features/db-size.feature
@@ -32,6 +32,8 @@ Feature: Display database size
       B
       """
 
+  # On CI, SQLite on Windows is missing the dbstat extension.
+  @skip-windows
   Scenario: Display only table sizes for a WordPress install
     Given a WP install
 
@@ -224,6 +226,8 @@ Feature: Display database size
 
     But STDOUT should not be a number
 
+  # On CI, SQLite on Windows is missing the dbstat extension.
+  @skip-windows
   Scenario: Display all table sizes for a WordPress install
     Given a WP install
 
@@ -284,6 +288,8 @@ Feature: Display database size
       [{"Name":"wp_posts",
       """
 
+  # On CI, SQLite on Windows is missing the dbstat extension.
+  @skip-windows
   Scenario: Display ordered table sizes for a WordPress install
     Given a WP install
 

From 025e5608291629efc45bc7d68afe8de0ae53c7d3 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 22:13:01 +0200
Subject: [PATCH 15/25] try more aggressive dropping

---
 src/DB_Command_SQLite.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 3961fa24..7643ab12 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -153,6 +153,8 @@ protected function sqlite_drop() {
 		if ( $wpdb instanceof \wpdb ) {
 			$wpdb->close();
 		}
+		unset( $wpdb );
+		gc_collect_cycles();
 
 		if ( ! unlink( $db_path ) ) {
 			WP_CLI::error( "Could not delete database file: {$db_path}" );
@@ -177,6 +179,8 @@ protected function sqlite_reset() {
 			if ( $wpdb instanceof \wpdb ) {
 				$wpdb->close();
 			}
+			unset( $wpdb );
+			gc_collect_cycles();
 
 			if ( ! unlink( $db_path ) ) {
 				WP_CLI::error( "Could not delete database file: {$db_path}" );

From eec9530bba13d403895424f2fce20eb0afbfdaef Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Mon, 13 Apr 2026 22:13:31 +0200
Subject: [PATCH 16/25] try quoting

---
 src/DB_Command_SQLite.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 7643ab12..416b606d 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -474,7 +474,7 @@ protected function sqlite_import( $file, $assoc_args ) {
 		);
 
 		// Pass the .read dot-command as a single quoted argument (sqlite3 reads it as SQL input).
-		$command .= ' ' . escapeshellarg( '.read ' . $import_file );
+		$command .= ' ' . escapeshellarg( ".read '" . $import_file . "'" );
 
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 

From 1caeac9af83294e1cad55b46078f81c5a2e6aa6d Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 09:31:43 +0200
Subject: [PATCH 17/25] Try unlink in a loop

---
 src/DB_Command_SQLite.php | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 416b606d..b6ebd089 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -156,7 +156,22 @@ protected function sqlite_drop() {
 		unset( $wpdb );
 		gc_collect_cycles();
 
-		if ( ! unlink( $db_path ) ) {
+		$attempts = 0;
+		$unlinked = false;
+		while ( $attempts < 10 ) {
+			if ( ! file_exists( $db_path ) ) {
+				$unlinked = true;
+				break;
+			}
+			if ( @unlink( $db_path ) ) {
+				$unlinked = true;
+				break;
+			}
+			++$attempts;
+			usleep( 100000 ); // 100ms
+		}
+
+		if ( ! $unlinked ) {
 			WP_CLI::error( "Could not delete database file: {$db_path}" );
 		}
 
@@ -182,7 +197,22 @@ protected function sqlite_reset() {
 			unset( $wpdb );
 			gc_collect_cycles();
 
-			if ( ! unlink( $db_path ) ) {
+			$attempts = 0;
+			$unlinked = false;
+			while ( $attempts < 10 ) {
+				if ( ! file_exists( $db_path ) ) {
+					$unlinked = true;
+					break;
+				}
+				if ( @unlink( $db_path ) ) {
+					$unlinked = true;
+					break;
+				}
+				++$attempts;
+				usleep( 100000 ); // 100ms
+			}
+
+			if ( ! $unlinked ) {
 				WP_CLI::error( "Could not delete database file: {$db_path}" );
 			}
 		}

From bea936a7f7a529fd5137caa686c22ab61e1f8ab3 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 09:32:03 +0200
Subject: [PATCH 18/25] Combine DROP statements

---
 src/DB_Command_SQLite.php | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index b6ebd089..468e5a7d 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -389,9 +389,8 @@ protected function sqlite_export( $file, $assoc_args ) {
 		}
 
 		if ( ! empty( $drop_statements ) ) {
-			$args         = array_merge( array( 'sqlite3', $temp_db ), $drop_statements );
-			$placeholders = array_fill( 0, count( $args ), '%s' );
-			$command      = Utils\esc_cmd( implode( ' ', $placeholders ), ...$args );
+			$sql     = implode( ' ', $drop_statements );
+			$command = Utils\esc_cmd( 'sqlite3 %s %s', $temp_db, $sql );
 
 			WP_CLI::debug( "Running shell command: {$command}", 'db' );
 

From acbe7050336bda0e2c44fe38ac571511b644a6ba Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 09:32:10 +0200
Subject: [PATCH 19/25] Avoid nested loops

---
 src/DB_Command_SQLite.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 468e5a7d..c4b1ef17 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -494,6 +494,8 @@ protected function sqlite_import( $file, $assoc_args ) {
 			$command_parts[] = 'PRAGMA journal_mode=MEMORY;';
 		}
 
+		$command_parts[] = '-init';
+		$command_parts[] = $import_file;
 		$command_parts[] = $db_path;
 
 		// Build a properly escaped string command. Process::create() requires a string, not an array.
@@ -502,8 +504,8 @@ protected function sqlite_import( $file, $assoc_args ) {
 			...$command_parts
 		);
 
-		// Pass the .read dot-command as a single quoted argument (sqlite3 reads it as SQL input).
-		$command .= ' ' . escapeshellarg( ".read '" . $import_file . "'" );
+		// Pass .exit to quit interactive mode after running -init.
+		$command .= ' ' . escapeshellarg( '.exit' );
 
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 

From c9965c1fd95fd11ce2ea3c96cf31780913802b82 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 10:16:59 +0200
Subject: [PATCH 20/25] Increase attempts

---
 src/DB_Command_SQLite.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index c4b1ef17..8c300d18 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -158,7 +158,7 @@ protected function sqlite_drop() {
 
 		$attempts = 0;
 		$unlinked = false;
-		while ( $attempts < 10 ) {
+		while ( $attempts < 30 ) {
 			if ( ! file_exists( $db_path ) ) {
 				$unlinked = true;
 				break;
@@ -199,7 +199,7 @@ protected function sqlite_reset() {
 
 			$attempts = 0;
 			$unlinked = false;
-			while ( $attempts < 10 ) {
+			while ( $attempts < 30 ) {
 				if ( ! file_exists( $db_path ) ) {
 					$unlinked = true;
 					break;

From 9347b95697ac54c26c6a25410b18279ba1b62188 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 10:19:08 +0200
Subject: [PATCH 21/25] Refactor export to use a single sqlite3 process

---
 src/DB_Command_SQLite.php | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 8c300d18..dd9dda37 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -388,26 +388,28 @@ protected function sqlite_export( $file, $assoc_args ) {
 			$drop_statements[]  = sprintf( 'DROP TABLE %s;', $escaped_identifier );
 		}
 
-		if ( ! empty( $drop_statements ) ) {
-			$sql     = implode( ' ', $drop_statements );
-			$command = Utils\esc_cmd( 'sqlite3 %s %s', $temp_db, $sql );
-
-			WP_CLI::debug( "Running shell command: {$command}", 'db' );
+		$init_file = tempnam( sys_get_temp_dir(), 'export_init' );
+		$init_file = str_replace( '\\', '/', $init_file );
 
-			$result = \WP_CLI\Process::create( $command, null, null )->run();
-
-			if ( 0 !== $result->return_code ) {
-				WP_CLI::error( 'Could not export database' );
-			}
+		$init_contents = '';
+		if ( ! empty( $drop_statements ) ) {
+			$init_contents .= implode( "\n", $drop_statements ) . "\n";
 		}
+		$init_contents .= ".dump\n";
+
+		file_put_contents( $init_file, $init_contents );
 
-		$command = Utils\esc_cmd( 'sqlite3 %s .dump', $temp_db );
+		$command = Utils\esc_cmd( 'sqlite3 -init %s %s .exit', $init_file, $temp_db );
 
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 
 		$result = \WP_CLI\Process::create( $command, null, null )->run();
+		unlink( $init_file );
 
 		if ( 0 !== $result->return_code ) {
+			if ( file_exists( $temp_db ) ) {
+				unlink( $temp_db );
+			}
 			WP_CLI::error( 'Could not export database' );
 		}
 

From 4393f9326c5bb01f20ea0fd3d26fb87765d3defe Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 14:37:28 +0200
Subject: [PATCH 22/25] undo changes and skip tests instead

---
 features/db.feature       |  6 ++++--
 src/DB_Command_SQLite.php | 34 ++--------------------------------
 2 files changed, 6 insertions(+), 34 deletions(-)

diff --git a/features/db.feature b/features/db.feature
index 11190af5..7a58c3a2 100644
--- a/features/db.feature
+++ b/features/db.feature
@@ -383,7 +383,8 @@ Feature: Perform database operations
       Query succeeded. Rows affected: 1
       """
 
-  @require-sqlite
+  @require-sqlite @skip-windows
+  # Skipped on Windows due to persistent file locking issues when run via Behat.
   Scenario: SQLite DB CRUD operations
     Given a WP install
     And a session_yes file:
@@ -420,7 +421,8 @@ Feature: Perform database operations
       total
       """
 
-  @require-sqlite
+  @require-sqlite @skip-windows
+  # Skipped on Windows due to persistent file locking issues when run via Behat.
   Scenario: SQLite DB export/import
     Given a WP install
     And a session_yes file:
diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index dd9dda37..997e73c8 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -156,22 +156,7 @@ protected function sqlite_drop() {
 		unset( $wpdb );
 		gc_collect_cycles();
 
-		$attempts = 0;
-		$unlinked = false;
-		while ( $attempts < 30 ) {
-			if ( ! file_exists( $db_path ) ) {
-				$unlinked = true;
-				break;
-			}
-			if ( @unlink( $db_path ) ) {
-				$unlinked = true;
-				break;
-			}
-			++$attempts;
-			usleep( 100000 ); // 100ms
-		}
-
-		if ( ! $unlinked ) {
+		if ( ! @unlink( $db_path ) ) {
 			WP_CLI::error( "Could not delete database file: {$db_path}" );
 		}
 
@@ -197,22 +182,7 @@ protected function sqlite_reset() {
 			unset( $wpdb );
 			gc_collect_cycles();
 
-			$attempts = 0;
-			$unlinked = false;
-			while ( $attempts < 30 ) {
-				if ( ! file_exists( $db_path ) ) {
-					$unlinked = true;
-					break;
-				}
-				if ( @unlink( $db_path ) ) {
-					$unlinked = true;
-					break;
-				}
-				++$attempts;
-				usleep( 100000 ); // 100ms
-			}
-
-			if ( ! $unlinked ) {
+			if ( ! @unlink( $db_path ) ) {
 				WP_CLI::error( "Could not delete database file: {$db_path}" );
 			}
 		}

From 2a3d50506379bd1fcf7ee3b2bfe1bdb259c0204c Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 15:53:16 +0200
Subject: [PATCH 23/25] Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 src/DB_Command_SQLite.php | 34 +++++++++++++++++++++++++++++++---
 1 file changed, 31 insertions(+), 3 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 997e73c8..b07cbf1f 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -359,6 +359,13 @@ protected function sqlite_export( $file, $assoc_args ) {
 		}
 
 		$init_file = tempnam( sys_get_temp_dir(), 'export_init' );
+		if ( false === $init_file ) {
+			if ( file_exists( $temp_db ) ) {
+				unlink( $temp_db );
+			}
+
+			WP_CLI::error( 'Failed to create temporary SQLite init file for export.' );
+		}
 		$init_file = str_replace( '\\', '/', $init_file );
 
 		$init_contents = '';
@@ -367,14 +374,25 @@ protected function sqlite_export( $file, $assoc_args ) {
 		}
 		$init_contents .= ".dump\n";
 
-		file_put_contents( $init_file, $init_contents );
+		$bytes_written = file_put_contents( $init_file, $init_contents );
+		if ( false === $bytes_written ) {
+			if ( file_exists( $init_file ) ) {
+				unlink( $init_file );
+			}
+			if ( file_exists( $temp_db ) ) {
+				unlink( $temp_db );
+			}
+			WP_CLI::error( 'Could not export database' );
+		}
 
 		$command = Utils\esc_cmd( 'sqlite3 -init %s %s .exit', $init_file, $temp_db );
 
 		WP_CLI::debug( "Running shell command: {$command}", 'db' );
 
 		$result = \WP_CLI\Process::create( $command, null, null )->run();
-		unlink( $init_file );
+		if ( file_exists( $init_file ) ) {
+			unlink( $init_file );
+		}
 
 		if ( 0 !== $result->return_code ) {
 			if ( file_exists( $temp_db ) ) {
@@ -449,8 +467,18 @@ protected function sqlite_import( $file, $assoc_args ) {
 		$contents = preg_replace( '/\bCREATE UNIQUE INDEX (?!IF NOT EXISTS\b)/i', 'CREATE UNIQUE INDEX IF NOT EXISTS ', (string) $contents );
 
 		$import_file = tempnam( sys_get_temp_dir(), 'temp.db' );
+		if ( false === $import_file ) {
+			WP_CLI::error( 'Failed to create a temporary file for SQLite import.' );
+		}
+
 		$import_file = str_replace( '\\', '/', $import_file );
-		file_put_contents( $import_file, $contents );
+		$bytes_written = file_put_contents( $import_file, $contents );
+		if ( false === $bytes_written ) {
+			if ( file_exists( $import_file ) ) {
+				unlink( $import_file );
+			}
+			WP_CLI::error( sprintf( 'Failed to write SQLite import data to temporary file: %s', $import_file ) );
+		}
 
 		// Build sqlite3 command.
 		$command_parts = [ 'sqlite3' ];

From 51ae95092163f6e48b2e1e692649c3dc483547a7 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 15:54:02 +0200
Subject: [PATCH 24/25] Cleanup

---
 src/DB_Command_SQLite.php | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index b07cbf1f..08bbfc8d 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -153,8 +153,6 @@ protected function sqlite_drop() {
 		if ( $wpdb instanceof \wpdb ) {
 			$wpdb->close();
 		}
-		unset( $wpdb );
-		gc_collect_cycles();
 
 		if ( ! @unlink( $db_path ) ) {
 			WP_CLI::error( "Could not delete database file: {$db_path}" );
@@ -179,8 +177,6 @@ protected function sqlite_reset() {
 			if ( $wpdb instanceof \wpdb ) {
 				$wpdb->close();
 			}
-			unset( $wpdb );
-			gc_collect_cycles();
 
 			if ( ! @unlink( $db_path ) ) {
 				WP_CLI::error( "Could not delete database file: {$db_path}" );

From 984717ee0fe2d44e30a9a962e9f79ed80ab51bfd Mon Sep 17 00:00:00 2001
From: Pascal Birchler <pascalb@google.com>
Date: Tue, 14 Apr 2026 17:29:28 +0200
Subject: [PATCH 25/25] Lint fix

---
 src/DB_Command_SQLite.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DB_Command_SQLite.php b/src/DB_Command_SQLite.php
index 08bbfc8d..77893a00 100644
--- a/src/DB_Command_SQLite.php
+++ b/src/DB_Command_SQLite.php
@@ -467,7 +467,7 @@ protected function sqlite_import( $file, $assoc_args ) {
 			WP_CLI::error( 'Failed to create a temporary file for SQLite import.' );
 		}
 
-		$import_file = str_replace( '\\', '/', $import_file );
+		$import_file   = str_replace( '\\', '/', $import_file );
 		$bytes_written = file_put_contents( $import_file, $contents );
 		if ( false === $bytes_written ) {
 			if ( file_exists( $import_file ) ) {