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<?php |
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/** |
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* Semver Constraint Matcher |
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* |
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* Minimal semver constraint evaluator used to compare an addon's declared |
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* core-version requirement (e.g. "^4.3") against the core's actual API |
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* version (e.g. "4.3.0"). Does not require composer/semver — keeps the |
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* Core plugin's dependency surface minimal. |
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* |
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* @package Forge12\DoubleOptIn\Versioning |
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* @since 4.3.0 |
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*/ |
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|
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namespace Forge12\DoubleOptIn\Versioning; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* Class SemverConstraint |
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* |
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* @api |
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* |
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* Supports a deliberately small constraint grammar — enough to express |
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* the dependency shapes addons actually need, no more: |
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* |
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* - "^X.Y" — caret: >=X.Y.0 and <(X+1).0.0 |
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* - "^X.Y.Z" — caret: >=X.Y.Z and <(X+1).0.0 |
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* - "~X.Y" — tilde: >=X.Y.0 and <X.(Y+1).0 |
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* - "~X.Y.Z" — tilde: >=X.Y.Z and <X.(Y+1).0 |
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* - ">=X.Y[.Z]" — inclusive lower bound |
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* - "<=X.Y[.Z]" — inclusive upper bound |
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* - ">X.Y[.Z]" — exclusive lower bound |
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* - "<X.Y[.Z]" — exclusive upper bound |
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* - "=X.Y[.Z]" — exact match (alias: no operator, e.g. "X.Y.Z") |
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* |
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* Unsupported, by design: OR clauses, pre-release suffixes, wildcard |
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* ranges, spaces in constraints. If an addon needs those, it has picked |
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* the wrong dependency language. |
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*/ |
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final class SemverConstraint { |
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|
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/** |
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* Check if a version satisfies a constraint. |
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* |
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* @param string $current Current version (e.g. "4.3.0"). |
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* @param string $constraint Constraint (e.g. "^4.3"). |
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* @return bool True if $current satisfies $constraint. Returns false |
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* for malformed constraints — callers should treat a |
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* false return as "does not match" without needing to |
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* distinguish "malformed" from "not matching". |
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*/ |
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public static function matches( string $current, string $constraint ): bool { |
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$current = trim( $current ); |
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$constraint = trim( $constraint ); |
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|
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if ( $current === '' || $constraint === '' ) { |
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return false; |
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} |
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|
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// Caret: ^X.Y or ^X.Y.Z |
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if ( preg_match( '/^\^(\d+)\.(\d+)(?:\.(\d+))?$/', $constraint, $m ) ) { |
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$min = $m[1] . '.' . $m[2] . '.' . ( $m[3] ?? '0' ); |
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$maxMajor = (int) $m[1] + 1; |
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$max = $maxMajor . '.0.0'; |
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|
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return version_compare( $current, $min, '>=' ) |
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&& version_compare( $current, $max, '<' ); |
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} |
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|
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// Tilde: ~X.Y or ~X.Y.Z |
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if ( preg_match( '/^~(\d+)\.(\d+)(?:\.(\d+))?$/', $constraint, $m ) ) { |
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$min = $m[1] . '.' . $m[2] . '.' . ( $m[3] ?? '0' ); |
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$maxMinor = (int) $m[2] + 1; |
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$max = $m[1] . '.' . $maxMinor . '.0'; |
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|
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return version_compare( $current, $min, '>=' ) |
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&& version_compare( $current, $max, '<' ); |
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} |
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|
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// Comparison operator: >=, <=, >, <, =, or no operator (exact) |
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if ( preg_match( '/^(>=|<=|>|<|=)?\s*(\d+\.\d+(?:\.\d+)?)$/', $constraint, $m ) ) { |
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$op = $m[1] !== '' ? $m[1] : '='; |
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$version = $m[2]; |
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|
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return version_compare( $current, $version, $op ); |
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} |
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|
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return false; |
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} |
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} |
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|
