Fix output formats for the `theme mod get` command by philipjohn · Pull Request #456 · wp-cli/extension-command

philipjohn · 2025-06-05T14:04:01Z

Fixes #96

I maintained but improved the space-indented formatting for the table format as folks might be using this (as per @schlessera's comment) and then fixed the other formats by using dot notation to represent each field, given the formatter needs arrays with key and value.

For the table format, I opted to remove the => for the value to represent an array. I felt it was harder to read than simply leaving the value blank and letting the indent do the visual work.

For other formats I stripped out anything without a value.

For all formats booleans and empty arrays are represented by a string (e.g. [empty array]. There may be a better way to represent these, and I did consider var_export() but others may have better ideas.

Here are some examples of the new output:

$ wp eval 'print_r(get_theme_mods());'
Array
(
    [0] => 
    [nav_menu_locations] => Array
        (
        )

    [sidebars_widgets] => Array
        (
            [time] => 1749114163
            [data] => Array
                (
                    [wp_inactive_widgets] => Array
                        (
                            [0] => block-2
                            [1] => block-3
                            [2] => block-4
                            [3] => block-5
                            [4] => block-6
                        )

                    [sidebar-1] => Array
                        (
                            [0] => block-7
                        )

                )

        )

)

$ wp theme mod get --all --format=table
+-------------------------+---------------+
| key                     | value         |
+-------------------------+---------------+
| 0                       | [false]       |
| nav_menu_locations      | [empty array] |
| sidebars_widgets        |               |
|   time                  | 1749114163    |
|   data                  |               |
|     wp_inactive_widgets |               |
|       0                 | block-2       |
|       1                 | block-3       |
|       2                 | block-4       |
|       3                 | block-5       |
|       4                 | block-6       |
|     sidebar-1           |               |
|       0                 | block-7       |
+-------------------------+---------------+

$ wp theme mod get --all --format=csv
key,value
0,[false]
nav_menu_locations,"[empty array]"
sidebars_widgets.time,1749114163
sidebars_widgets.data.wp_inactive_widgets.0,block-2
sidebars_widgets.data.wp_inactive_widgets.1,block-3
sidebars_widgets.data.wp_inactive_widgets.2,block-4
sidebars_widgets.data.wp_inactive_widgets.3,block-5
sidebars_widgets.data.wp_inactive_widgets.4,block-6
sidebars_widgets.data.sidebar-1.0,block-7

$ wp theme mod get --all --format=yaml
---
- 
  key: "0"
  value: '[false]'
- 
  key: nav_menu_locations
  value: '[empty array]'
- 
  key: sidebars_widgets.time
  value: 1749114163
- 
  key: sidebars_widgets.data.wp_inactive_widgets.0
  value: block-2
- 
  key: sidebars_widgets.data.wp_inactive_widgets.1
  value: block-3
- 
  key: sidebars_widgets.data.wp_inactive_widgets.2
  value: block-4
- 
  key: sidebars_widgets.data.wp_inactive_widgets.3
  value: block-5
- 
  key: sidebars_widgets.data.wp_inactive_widgets.4
  value: block-6
- 
  key: sidebars_widgets.data.sidebar-1.0
  value: block-7

$ wp theme mod get --all --format=json | jq .
[
  {
    "key": "0",
    "value": "[false]"
  },
  {
    "key": "nav_menu_locations",
    "value": "[empty array]"
  },
  {
    "key": "sidebars_widgets.time",
    "value": 1749114163
  },
  {
    "key": "sidebars_widgets.data.wp_inactive_widgets.0",
    "value": "block-2"
  },
  {
    "key": "sidebars_widgets.data.wp_inactive_widgets.1",
    "value": "block-3"
  },
  {
    "key": "sidebars_widgets.data.wp_inactive_widgets.2",
    "value": "block-4"
  },
  {
    "key": "sidebars_widgets.data.wp_inactive_widgets.3",
    "value": "block-5"
  },
  {
    "key": "sidebars_widgets.data.wp_inactive_widgets.4",
    "value": "block-6"
  },
  {
    "key": "sidebars_widgets.data.sidebar-1.0",
    "value": "block-7"
  }
]

schlessera

Looks good, only minor nitpicks for the code. Also, it would be good to have at least 1 feature test covering this.

src/Theme_Mod_Command.php

philipjohn · 2025-06-06T08:42:30Z

Oh, I will do tests by the way! Just probably not until after this week :)

Copilot

Pull request overview

This PR refactors the wp theme mod get implementation to produce well-structured output across table, CSV, JSON, and YAML formats, particularly for nested option values, addressing malformed output reported in issue #96.

Changes:

Introduces a recursive mod_to_string() helper to flatten nested theme mod arrays/objects into a list of { key, value } pairs, with special handling for booleans and empty arrays.
Adjusts table formatting to use indentation for nested keys and uses dot-notation for hierarchical keys in CSV/JSON/YAML formats, while filtering out items deemed to have “no value” in non-tabular formats.
Updates usage of WP_CLI\Utils\get_flag_value() via an imported Utils alias and reuses the new formatter logic for both get and list_ subcommands.

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Copilot · 2026-02-03T01:29:47Z

src/Theme_Mod_Command.php

+		// If specific mods are requested, filter out any that aren't requested.
+		$mods = ! empty( $args ) ? array_intersect_key( get_theme_mods(), array_flip( $args ) ) : get_theme_mods();

-		// For unset mods, show blank value.
-		foreach ( $args as $mod ) {
-			if ( ! isset( $mods[ $mod ] ) ) {
-				$list[] = [
-					'key'   => $mod,
-					'value' => '',
-				];
+		// Generate the list of items ready for output. We use an initial separator that we can replace later depending on format.
+		$separator = '\t';
+		array_walk(
+			$mods,
+			function ( $value, $key ) use ( &$mod_list, $separator ) {


The previous implementation added rows for requested mods that are not present in get_theme_mods() (see the old "For unset mods, show blank value." logic), which is relied on by the theme-mod.feature example for header_textcolor. With this new $mods construction and no subsequent pass over $args, requested-but-unset mods are now silently omitted from the output for all formats, changing the CLI behavior; to preserve backward compatibility you should add entries with an empty value for any requested mod that is not present in $mods (at least for the table format, and optionally for others).

src/Theme_Mod_Command.php

Copilot · 2026-02-03T01:29:47Z

src/Theme_Mod_Command.php

@@ -1,5 +1,7 @@
 <?php

+use \WP_CLI\Utils;


The import here uses a leading backslash, whereas other commands in this repository consistently use use WP_CLI\Utils; without it (for example, src/Theme_Command.php:5 and src/Plugin_Command.php:5). For consistency with established codebase conventions, it would be better to drop the leading backslash from this use statement.

Copilot · 2026-02-03T01:29:48Z

src/Theme_Mod_Command.php

+			// For JSON, CSV, and YAML formats we use dot notation to show the hierarchy.
+			case 'csv':
+			case 'yaml':
+			case 'json':
+				$mod_list = array_filter(
+					array_map(
+						static function ( $item ) use ( $separator ) {
+							return [
+								'key'   => str_replace( $separator, '.', $item['key'] ),
+								'value' => $item['value'],
+							];
+						},
+						$mod_list
+					),
+					function ( $item ) {
+						return ! empty( $item['value'] );
+					}
+				);
+				break;


The new flattening and dot-notation logic for CSV/YAML/JSON formats introduces non-trivial behavior but currently has no dedicated acceptance tests (unlike features/theme-mod-list.feature, which covers those formats for the list subcommand). Given that issue #96 was caused by malformed non-tabular output, it would be valuable to add Behat coverage for wp theme mod get --all --format=csv|json|yaml with nested theme-mod structures to ensure this formatter behavior is exercised and guarded against regressions.

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

philipjohn added 4 commits June 5, 2025 15:38

96: Fix output formats for the theme mod get command

bc6035d

96: Handle both booleans

84891e7

96: Handle objects

d80db8f

96: Fix formatting and rename variable to please the CS Gods

e354614

philipjohn requested a review from a team as a code owner June 5, 2025 14:04

schlessera requested changes Jun 5, 2025

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philipjohn added 5 commits June 6, 2025 10:08

96: Remove unnecessary array check already done by get_theme_mods()

561cfc8

96: Use tab character as separator

4b0aa30

96: Import Utils for much more handsome code

26b9aff

96: Make the array_map callbacks static

5864145

96: Set the separator once

76025d7

philipjohn requested a review from schlessera June 6, 2025 08:14

github-actions bot added command:theme-mod-get Related to 'theme mod get' command scope:distribution Related to distribution scope:testing Related to testing labels Dec 22, 2025

Merge branch 'main' into fix/96-theme-mod-get-format

efb8947

swissspidy requested a review from Copilot February 3, 2026 01:23

Copilot started reviewing on behalf of swissspidy February 3, 2026 01:23 View session

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swissspidy and others added 2 commits March 12, 2026 13:39

Update src/Theme_Mod_Command.php

97f2985

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Merge branch 'main' into fix/96-theme-mod-get-format

01b24ef

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Fix output formats for the `theme mod get` command#456

Fix output formats for the `theme mod get` command#456
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