export async function listOutdatedTools()

in src/goInstallTools.ts [833:891]
43 lines of code
16 McCabe index (conditional complexity)

export async function listOutdatedTools(configuredGoVersion: GoVersion | undefined, allTools: Tool[]): Promise<Tool[]> {
	if (!configuredGoVersion || !configuredGoVersion.sv) {
		return [];
	}

	const { major, minor } = configuredGoVersion.sv;

	const oldTools = await Promise.all(
		allTools.map(async (tool) => {
			const toolPath = getBinPath(tool.name);
			if (!path.isAbsolute(toolPath)) {
				return;
			}
			const m = await inspectGoToolVersion(toolPath);
			if (!m) {
				console.log(`failed to get go tool version: ${toolPath}`);
				return;
			}
			const { goVersion } = m;
			if (!goVersion) {
				// TODO: we cannot tell whether the tool was compiled with a newer version of go
				// or compiled in an unconventional way.
				return;
			}
			const toolGoVersion = new GoVersion('', `go version ${goVersion} os/arch`);
			if (!toolGoVersion || !toolGoVersion.sv) {
				return tool;
			}
			if (
				major > toolGoVersion.sv.major ||
				(major === toolGoVersion.sv.major && minor > toolGoVersion.sv.minor)
			) {
				return tool;
			}
			// special case: if the tool was compiled with beta or rc, and the current
			// go version is a stable version, let's ask to recompile.
			if (
				major === toolGoVersion.sv.major &&
				minor === toolGoVersion.sv.minor &&
				(goVersion.includes('beta') || goVersion.includes('rc')) &&
				// We assume tools compiled with different rc/beta need to be recompiled.
				// We test the inequality by checking whether the exact beta or rc version
				// appears in the `go version` output. e.g.,
				//   configuredGoVersion.version      	goVersion(tool)		update
				//   'go version go1.18 ...'    		'go1.18beta1'		Yes
				//   'go version go1.18beta1 ...'		'go1.18beta1'		No
				//   'go version go1.18beta2 ...'		'go1.18beta1'		Yes
				//   'go version go1.18rc1 ...'			'go1.18beta1'		Yes
				//   'go version go1.18rc1 ...'			'go1.18'			No
				//   'go version devel go1.18-deadbeaf ...'	'go1.18beta1'	No (* rare)
				!configuredGoVersion.version.includes(goVersion)
			) {
				return tool;
			}
			return;
		})
	);
	return oldTools.filter((tool): tool is Tool => !!tool);
}