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68 lines
3.5 KiB
TypeScript
68 lines
3.5 KiB
TypeScript
// Type definitions for which 1.3.0
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// Project: https://github.com/isaacs/node-which
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// Definitions by: vvakame <https://github.com/vvakame>
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// cspotcode <https://github.com/cspotcode>
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// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
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/** Finds all instances of a specified executable in the PATH environment variable */
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declare function which(cmd: string, options: which.AsyncOptions & which.OptionsAll, cb: (err: Error | null, paths: Array<string> | undefined) => void): void;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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declare function which(cmd: string, options: which.AsyncOptions & which.OptionsFirst, cb: (err: Error | null, path: string | undefined) => void): void;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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declare function which(cmd: string, options: which.AsyncOptions, cb: (err: Error | null, path: string | Array<string> | undefined) => void): void;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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declare function which(cmd: string, cb: (err: Error | null, path: string | undefined) => void): void;
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declare namespace which {
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/** Finds all instances of a specified executable in the PATH environment variable */
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function sync(cmd: string, options: which.Options & which.OptionsAll & which.OptionsNoThrow): Array<string> | null;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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function sync(cmd: string, options: which.Options & which.OptionsFirst & which.OptionsNoThrow): string | null;
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/** Finds all instances of a specified executable in the PATH environment variable */
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function sync(cmd: string, options: which.Options & which.OptionsAll & which.OptionsThrow): Array<string>;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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function sync(cmd: string, options: which.Options & which.OptionsFirst & which.OptionsThrow): string;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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function sync(cmd: string, options: which.Options): string | Array<string> | null;
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/** Finds the first instance of a specified executable in the PATH environment variable */
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function sync(cmd: string): string;
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/** Options that ask for all matches. */
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interface OptionsAll extends AsyncOptions {
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all: true;
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}
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/** Options that ask for the first match (the default behavior) */
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interface OptionsFirst extends AsyncOptions {
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all?: false | undefined;
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}
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/** Options that ask to receive null instead of a thrown error */
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interface OptionsNoThrow extends Options {
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nothrow: true;
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}
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/** Options that ask for a thrown error if executable is not found (the default behavior) */
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interface OptionsThrow extends Options {
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nothrow?: false | undefined;
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}
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/** Options for which() async API */
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interface AsyncOptions {
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/** If true, return all matches, instead of just the first one. Note that this means the function returns an array of strings instead of a single string. */
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all?: boolean;
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/** Use instead of the PATH environment variable. */
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path?: string;
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/** Use instead of the PATHEXT environment variable. */
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pathExt?: string;
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}
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/** Options for which() sync and async APIs */
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interface Options extends AsyncOptions {
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/** If true, returns null when not found */
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nothrow?: boolean;
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}
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}
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export = which;
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