Various tweaks to import/export

[johngodley]

Various fixes for new import/export pages:

• Group import now has update/create/ignore like redirects
• Group import matches by name and updates existing
• Apache import detects a few more regex situations
• Style fixes to imports

[Copilot]

Pull request overview

This PR refines the import/export experience by expanding group-import duplicate handling (create/update/ignore), improving Apache rewrite-rule detection/normalization, and polishing the import/export UI + result reporting.

Changes:

• Update import stats to track groups_updated / groups_ignored (replacing groups_imported) across PHP + UI and extend test coverage for the new group-duplicate behaviors.
• Enhance Apache RewriteRule parsing to better detect standard (non-regex) cases and to capture additional match flags into match_data.
• UI/UX tweaks: simplify ImportPage button labels, adjust import options visibility/messages, improve preview table layout, and show export “File size”.

Reviewed changes

Copilot reviewed 24 out of 24 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/unit/test-plugin-importers.php	Updates expected import stats keys for group tracking.
tests/unit/test-import-export-services.php	Updates expected service return stats for group tracking.
tests/unit/test-apache-format.php	Adds coverage for unescaped dot handling and optional trailing slash rewrite imports.
tests/integration/import-export/test-json.php	Adds integration coverage for group create/update/ignore counts and name matching.
src/page/import/use-import-page.ts	Updates empty import stats shape for new group counters.
src/page/import/types.ts	Updates ImportStats typing for new group counters.
src/page/import/index.tsx	Simplifies ImportPage button labels (“Preview”/“Import”).
src/page/import/index.test.tsx	Refactors test setup and adds coverage for options visibility/disabled actions.
src/page/import/import-results.tsx	Updates empty-result detection + stats labels and restructures preview rendering within IoCard.
src/page/import/import-results.test.tsx	Updates assertions for new labels/counters and preview-table structure.
src/page/import/import-options.tsx	Tightens option visibility logic and updates duplicate-mode label copy.
src/page/export/export-results.tsx	Adds formatFileSize() and displays export payload size.
src/page/export/export-results.test.tsx	Adds coverage for export “File size” display.
src/lib/api/hooks/use-io.ts	Updates import notice string to reflect new group counters and revised “ignored” phrasing.
src/component/import-export/style.scss	Adds stacked control layout and adjusts preview table spacing.
includes/import-export/importer/class-wordpress-old-slugs.php	Updates importer result shape for new group counters.
includes/import-export/importer/class-safe-redirect-manager.php	Updates importer result shape for new group counters.
includes/import-export/importer/class-plugin.php	Updates empty/results payload keys for new group counters.
includes/import-export/importer/class-plugin-registry.php	Updates fallback result payload keys for new group counters.
includes/import-export/format/class-json.php	Routes group import through ImportGroup resolver rather than local counting logic.
includes/import-export/format/class-apache.php	Improves RewriteRule handling (optional trailing slash) and adds match_data extraction + dot unescaping.
includes/import-export/class-import-group.php	Implements group duplicate modes and name-based matching, tracking created/updated/ignored counts.
includes/import-export/class-group-repository.php	Adds get_by_name() and update() to support new ImportGroup behaviors.
includes/import-export/class-format-handler.php	Updates ImportResult contract and result assembly for new group counters.

Comments suppressed due to low confidence (1)

includes/import-export/format/class-apache.php:243

• decode_url() now unescapes \. to ., and regex_url() uses the decoded value when returning a regex pattern. For rules that remain regex (e.g. ^foo\.bar$), this changes the meaning from a literal dot to a wildcard dot, so the imported regex will match unintended URLs. Preserve escaped dots when constructing the returned regex pattern, while still unescaping dots for the standard/non-regex URL cases.

		$url = $this->decode_url( $url );

		if ( $this->is_str_regex( $url ) ) {
			$has_start = strpos( $url, '^' ) === 0;
			$has_end = $this->has_end_anchor( $url );

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[Copilot]

Pull request overview

Copilot reviewed 25 out of 25 changed files in this pull request and generated 1 comment.