src/Package_Command.php
private function get_raw_git_version( $version ) {
		if ( '' === $version ) {
			return 'master';
		}

		// If Composer hash given then just use whatever's after it.
		$hash_pos = strpos( $version, '#' );
		if ( false !== $hash_pos ) {
			return substr( $version, $hash_pos + 1 );
		}

		// Strip any Composer 'dev-' prefix.
		if ( 0 === strncmp( $version, 'dev-', 4 ) ) {
			$version = substr( $version, 4 );
		}

		// Ignore/strip any relative suffixes.
		return str_replace( [ '^', '~' ], '', $version );
	}
private function get_raw_git_version( $version ) {
		if ( '' === $version ) {
			return 'master';
		}

		// If Composer hash given then just use whatever's after it.
		$hash_pos = strpos( $version, '#' );
		if ( false !== $hash_pos ) {
			return substr( $version, $hash_pos + 1 );
		}

		// Strip any Composer 'dev-' prefix.
		if ( 0 === strncmp( $version, 'dev-', 4 ) ) {
			$version = substr( $version, 4 );
		}

		// Ignore/strip any relative suffixes.
		return str_replace( [ '^', '~' ], '', $version );
	}
Get the version to use for raw github request. Very basic.

@string $version Package version.
@string Version to use for github request.