Files
learnharness/src/agent/claude-code/binary.ts
T

86 lines
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TypeScript

import * as fs from "node:fs";
import * as os from "node:os";
import * as path from "node:path";
type BinaryLookup = {
env: Record<string, string | undefined>;
platform: NodeJS.Platform;
homeDir: string;
isExecutable: (path: string) => boolean;
};
type SearchSpec = {
paths: path.PlatformPath;
names: string[];
knownDirs: string[];
};
function getWindowsSearchSpec(env: BinaryLookup["env"], homeDir: string): SearchSpec {
const paths = path.win32;
const appData = env.APPDATA ?? paths.join(homeDir, "AppData", "Roaming");
return {
paths,
names: ["claude.exe", "claude.cmd"],
knownDirs: [
paths.join(homeDir, ".local", "bin"),
paths.join(homeDir, ".claude", "local"),
env.npm_config_prefix ?? paths.join(appData, "npm"),
],
};
}
function getPosixSearchSpec(env: BinaryLookup["env"], homeDir: string): SearchSpec {
const paths = path.posix;
const npmBin = env.npm_config_prefix
? paths.join(env.npm_config_prefix, "bin")
: paths.join(homeDir, ".npm-global", "bin");
return {
paths,
names: ["claude"],
knownDirs: [
paths.join(homeDir, ".local", "bin"),
paths.join(homeDir, ".claude", "local"),
npmBin,
"/opt/homebrew/bin",
"/usr/local/bin",
],
};
}
export function resolveClaudeBinary({ env, platform, homeDir, isExecutable }: BinaryLookup): string | null {
const { paths, names, knownDirs } = platform === "win32"
? getWindowsSearchSpec(env, homeDir)
: getPosixSearchSpec(env, homeDir);
const pathDirs = (env.PATH ?? "").split(paths.delimiter).filter(Boolean);
for (const name of names) {
for (const dir of [...pathDirs, ...knownDirs]) {
const candidate = paths.join(dir, name);
if (isExecutable(candidate)) return candidate;
}
}
return null;
}
function isExecutableFile(filePath: string): boolean {
try {
fs.accessSync(filePath, fs.constants.X_OK);
return fs.statSync(filePath).isFile();
} catch {
return false;
}
}
export function getClaudeBinary(): string | null {
return resolveClaudeBinary({
env: process.env,
platform: process.platform,
homeDir: os.homedir(),
isExecutable: isExecutableFile,
});
}