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422 lines (385 loc) · 12.3 KB
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export type ToolchainSource = "managed" | "system";
export type ToolchainStatus = "installed" | "available" | "planned";
export interface ToolchainItem {
family: string;
version: string;
spec: string;
source: ToolchainSource;
effective: boolean;
}
export interface TargetItem {
target: string;
note: string;
toolchainSpec: string | undefined;
status: ToolchainStatus;
effective: boolean;
}
export interface ToolchainInventory {
installed: ToolchainItem[];
available: ToolchainItem[];
targets: TargetItem[];
effective: ToolchainItem | undefined;
effectiveTarget: string | undefined;
globalDefaultSpec: string | undefined;
projectOverridesGlobal: boolean;
recognized: boolean;
rawOutput: string;
}
type Section = "managed" | "system" | "available" | "targets" | undefined;
const ANSI_ESCAPE = /\u001b\[[0-?]*[ -/]*[@-~]/g;
const NAME_PATTERN = "[A-Za-z][A-Za-z0-9+_.-]*";
const FAMILY_PATTERN = `(?:${NAME_PATTERN}:)?${NAME_PATTERN}`;
const VERSION_PATTERN = "[0-9][A-Za-z0-9+_.:-]*";
const SPEC_VERSION_PATTERN = `(?:${VERSION_PATTERN}|system)`;
const INPUT_VERSION_PATTERN = "[A-Za-z0-9][A-Za-z0-9+_.:-]*";
const AUXILIARY_WORDS = new Set([
"available",
"default",
"global",
"host",
"installed",
"no",
"none",
"run",
"system",
"target",
"targets",
"toolchain",
"toolchains",
]);
export function mcppCommandArguments(...args: string[]): string[] {
return [...args];
}
function unqualifiedFamily(value: string): string {
const colon = value.indexOf(":");
return (colon === -1 ? value : value.slice(colon + 1)).toLowerCase();
}
export function normalizeToolchainSpec(input: string): string | undefined {
let value = input.trim();
if (value.length >= 2) {
const first = value[0];
const last = value[value.length - 1];
if ((first === "'" && last === "'") || (first === '"' && last === '"')) {
value = value.slice(1, -1).trim();
}
}
if (/^msvc$/i.test(value)) {
return "msvc";
}
const atMatch = value.match(
new RegExp(`^(${FAMILY_PATTERN})@(${INPUT_VERSION_PATTERN})$`),
);
if (atMatch !== null) {
const family = atMatch[1].toLowerCase();
const version = atMatch[2];
return `${family}@${version}`;
}
const spacedMatch = value.match(
new RegExp(`^(${FAMILY_PATTERN})\\s+(${INPUT_VERSION_PATTERN})$`),
);
if (spacedMatch !== null) {
const family = spacedMatch[1].toLowerCase();
const version = spacedMatch[2];
return `${family}@${version}`;
}
const bareMatch = value.match(new RegExp(`^(${FAMILY_PATTERN})$`));
if (bareMatch !== null) {
return bareMatch[1].toLowerCase();
}
return undefined;
}
export function isMsvcToolchainSpec(input: string): boolean {
const normalized = normalizeToolchainSpec(input);
const compiler = normalized?.split("@", 1)[0];
return compiler !== undefined && unqualifiedFamily(compiler) === "msvc";
}
export type ToolchainInstallKind = "managed-host" | "managed-target" | "system-detect";
/**
* 返回兼容拼写可能隐含的 target 提示；undefined 表示没有对应提示。
* 结果只用于 UI 分流，输入和 triple 的合法性最终由 mcpp CLI 判断。
*/
export type ToolchainSpecTargetHint = "musl" | "windows-gnu" | "target";
export function toolchainSpecTargetHint(input: string): ToolchainSpecTargetHint | undefined {
const normalized = normalizeToolchainSpec(input)?.toLowerCase();
if (normalized === undefined) {
return undefined;
}
const qualifiedCompiler = normalized.split("@", 1)[0];
const compiler = unqualifiedFamily(qualifiedCompiler);
if (
compiler === "musl-gcc"
|| (compiler === "gcc" && normalized.endsWith("-musl"))
) {
return "musl";
}
if (compiler.includes("mingw")) {
return "windows-gnu";
}
// mcpp 还接受带 triple 的旧编译器写法，例如
// `aarch64-linux-musl-gcc@16`。这里只识别其外形，triple 是否有效由 mcpp 判断。
if (compiler.endsWith("-gcc")) {
return compiler.includes("-musl-") ? "musl" : "target";
}
return undefined;
}
export function toolchainInstallKind(input: string): ToolchainInstallKind {
if (isMsvcToolchainSpec(input)) {
return "system-detect";
}
return toolchainSpecTargetHint(input) === undefined ? "managed-host" : "managed-target";
}
export function hostDefaultToolchains(inventory: ToolchainInventory): ToolchainItem[] {
const hostSpecs = new Set(
inventory.targets
.filter((target) => target.status === "installed" && /\bhost\b/i.test(target.note))
.map((target) => target.toolchainSpec)
.filter((spec): spec is string => spec !== undefined),
);
const windowsHost = inventory.targets.some((target) =>
target.status !== "planned"
&& target.target.endsWith("-windows-msvc")
&& /\bhost\b/i.test(target.note),
);
const windowsGccSpecs = new Set(
inventory.targets
.filter((target) => target.status === "installed" && target.target.endsWith("-windows-gnu"))
.map((target) => target.toolchainSpec)
.filter((spec): spec is string => spec !== undefined),
);
if (inventory.targets.length === 0) {
return inventory.installed;
}
return inventory.installed.filter((toolchain) =>
toolchain.source === "system"
|| hostSpecs.has(toolchain.spec)
// mcpp 在 Windows 上将省略 target 的 GCC 映射到 MinGW payload。
|| (windowsHost && toolchain.family === "gcc" && windowsGccSpecs.has(toolchain.spec)));
}
function sectionForHeader(line: string): Section | "header" | false {
if (/^\s*Toolchains\s*:\s*$/i.test(line)) {
return "managed";
}
if (/^\s*System(?:\s+toolchains?)?\s*:\s*$/i.test(line)) {
return "system";
}
if (/^\s*Targets\s*:\s*$/i.test(line)) {
return "targets";
}
if (/^\s*Available\s+toolchains?\b.*:\s*$/i.test(line)) {
return "available";
}
if (/^\s*[A-Za-z][A-Za-z0-9 _-]*\s*:\s*$/i.test(line)) {
return "header";
}
return false;
}
function parseToolchainRow(
line: string,
source: ToolchainSource,
): Array<{ family: string; version: string; effective: boolean; spec: string }> | undefined {
let value = line.trim();
let effective = false;
if (value.startsWith("*")) {
effective = true;
value = value.slice(1).trimStart();
}
if (value.startsWith("-")) {
value = value.slice(1).trimStart();
}
if (value.startsWith("(") || value.length === 0) {
return undefined;
}
const tokens = value.split(/\s+/);
const firstToken = tokens[0];
if (firstToken === undefined || AUXILIARY_WORDS.has(firstToken.toLowerCase())) {
return undefined;
}
let family: string;
let versions: string[];
if (firstToken.includes("@")) {
const spec = normalizeToolchainSpec(firstToken);
if (spec === undefined) {
return undefined;
}
const atIndex = firstToken.indexOf("@");
family = firstToken.slice(0, atIndex).toLowerCase();
versions = [firstToken.slice(atIndex + 1)];
} else {
const secondToken = tokens[1];
if (secondToken === undefined || !new RegExp(`^${VERSION_PATTERN}$`).test(secondToken)) {
return undefined;
}
family = firstToken.toLowerCase();
versions = [secondToken];
for (let index = 2; index + 1 < tokens.length; index += 2) {
if (tokens[index] !== "/" || !new RegExp(`^${VERSION_PATTERN}$`).test(tokens[index + 1])) {
break;
}
versions.push(tokens[index + 1]);
}
}
return versions.flatMap((version) => {
const spec = source === "system" && family === "msvc"
? "msvc"
: normalizeToolchainSpec(`${family} ${version}`);
return spec === undefined ? [] : [{ family, version, spec, effective }];
});
}
function parseTargetRow(line: string): TargetItem | undefined {
let value = line.trim();
let effective = false;
if (value.startsWith("*")) {
effective = true;
value = value.slice(1).trimStart();
}
if (value.startsWith("-")) {
value = value.slice(1).trimStart();
}
const tokens = value.split(/\s+/);
if (tokens.length < 3 || tokens[0]?.toUpperCase() === "TARGET") {
return undefined;
}
const statusToken = tokens.at(-1)?.toLowerCase();
if (statusToken !== "installed" && statusToken !== "available" && statusToken !== "planned") {
return undefined;
}
const target = tokens[0];
const columns = tokens.slice(1, -1);
if (target === undefined || columns.length === 0) {
return undefined;
}
const lastColumn = columns.at(-1);
let noteColumns: string[];
let toolchainSpec: string | undefined;
if (lastColumn === "\u2014" || lastColumn === "-") {
noteColumns = columns.slice(0, -1);
} else if (columns.length >= 2) {
const family = columns.at(-2);
const version = columns.at(-1);
if (family === undefined || version === undefined) {
return undefined;
}
toolchainSpec = normalizeToolchainSpec(family + " " + version);
if (toolchainSpec === undefined) {
return undefined;
}
noteColumns = columns.slice(0, -2);
} else {
return undefined;
}
return {
target,
note: noteColumns.join(" "),
toolchainSpec,
status: statusToken,
effective,
};
}
interface ParsedGlobalDefault {
value: string | undefined;
}
function parseGlobalDefault(line: string): ParsedGlobalDefault | undefined {
const match = line.match(/\bglobal\s+default\s+is\s+['"]([^'"]+)['"]/i);
if (match !== null) {
return { value: normalizeToolchainSpec(match[1]) };
}
const none = line.match(/\bglobal\s+default\s+is\s+['"]?<none>['"]?/i);
if (none !== null) {
return { value: undefined };
}
const unquoted = line.match(
new RegExp(`\\bglobal\\s+default\\s+is\\s+(${FAMILY_PATTERN}(?:@${SPEC_VERSION_PATTERN}|\\s+${VERSION_PATTERN}|))\\b`, "i"),
);
return unquoted === null ? undefined : { value: normalizeToolchainSpec(unquoted[1]) };
}
export function parseToolchainList(output: string): ToolchainInventory {
const installed: ToolchainItem[] = [];
const available: ToolchainItem[] = [];
const targets: TargetItem[] = [];
let effective: ToolchainItem | undefined;
let effectiveTarget: string | undefined;
let section: Section;
let recognized = false;
let projectMarker = false;
let explicitGlobalDefault: string | undefined;
let explicitGlobalDefaultSeen = false;
for (const rawLine of output.split(/\r?\n/)) {
const line = rawLine.replace(ANSI_ESCAPE, "");
const lowerLine = line.toLowerCase();
if (lowerLine.includes("no toolchains installed")) {
recognized = true;
}
if (/effective\s+toolchain\s+from\s+project\s+mcpp\.toml\s+\[toolchain\]/i.test(line)) {
projectMarker = true;
}
const parsedGlobalDefault = parseGlobalDefault(line);
if (parsedGlobalDefault !== undefined) {
explicitGlobalDefaultSeen = true;
explicitGlobalDefault = parsedGlobalDefault.value;
}
const header = sectionForHeader(line);
if (header !== false) {
if (header === "header") {
section = undefined;
} else {
recognized = true;
section = header;
}
continue;
}
if (section === undefined) {
continue;
}
if (section === "targets") {
const target = parseTargetRow(line);
if (target === undefined) {
continue;
}
targets.push(target);
if (target.effective && effectiveTarget === undefined) {
effectiveTarget = target.target;
}
continue;
}
const parsedRows = parseToolchainRow(line, section === "system" ? "system" : "managed");
if (parsedRows === undefined) {
continue;
}
for (const parsed of parsedRows) {
const item: ToolchainItem = {
family: parsed.family,
version: parsed.version,
spec: parsed.spec,
source: section === "system" ? "system" : "managed",
effective: parsed.effective,
};
if (section === "available") {
available.push(item);
} else {
installed.push(item);
if (item.effective && effective === undefined) {
effective = item;
}
}
}
}
const globalDefaultSpec = recognized
? explicitGlobalDefaultSeen ? explicitGlobalDefault : effective?.spec
: undefined;
const projectOverridesGlobal = recognized
&& (projectMarker
|| (explicitGlobalDefaultSeen
&& effective !== undefined
&& explicitGlobalDefault !== effective.spec));
return {
installed,
available,
targets,
effective,
effectiveTarget,
globalDefaultSpec,
projectOverridesGlobal,
recognized,
rawOutput: output,
};
}