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Merge pull request #46 from AtkinsSJ/filesystem-consistent-errors
Convert filesystem API errors to a consistent type
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| /* | ||
| * Copyright (C) 2024 Puter Technologies Inc. | ||
| * | ||
| * This file is part of Phoenix Shell. | ||
| * | ||
| * Phoenix Shell is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Affero General Public License as published | ||
| * by the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
| export const ErrorCodes = { | ||
| EACCES: Symbol.for('EACCES'), | ||
| EADDRINUSE: Symbol.for('EADDRINUSE'), | ||
| ECONNREFUSED: Symbol.for('ECONNREFUSED'), | ||
| ECONNRESET: Symbol.for('ECONNRESET'), | ||
| EEXIST: Symbol.for('EEXIST'), | ||
| EFBIG: Symbol.for('EFBIG'), | ||
| EINVAL: Symbol.for('EINVAL'), | ||
| EIO: Symbol.for('EIO'), | ||
| EISDIR: Symbol.for('EISDIR'), | ||
| EMFILE: Symbol.for('EMFILE'), | ||
| ENOENT: Symbol.for('ENOENT'), | ||
| ENOSPC: Symbol.for('ENOSPC'), | ||
| ENOTDIR: Symbol.for('ENOTDIR'), | ||
| ENOTEMPTY: Symbol.for('ENOTEMPTY'), | ||
| EPERM: Symbol.for('EPERM'), | ||
| EPIPE: Symbol.for('EPIPE'), | ||
| ETIMEDOUT: Symbol.for('ETIMEDOUT'), | ||
| }; | ||
|
|
||
| export class PosixError extends Error { | ||
| // posixErrorCode can be either a string, or one of the ErrorCodes above. | ||
| constructor(posixErrorCode, message) { | ||
| super(message); | ||
| if (typeof posixErrorCode === 'symbol') { | ||
| if (ErrorCodes[Symbol.keyFor(posixErrorCode)] !== posixErrorCode) { | ||
| throw new Error(`Unrecognized POSIX error code: '${posixErrorCode}'`); | ||
| } | ||
| this.posixCode = posixErrorCode; | ||
| } else { | ||
| const code = ErrorCodes[posixErrorCode]; | ||
| if (!code) throw new Error(`Unrecognized POSIX error code: '${posixErrorCode}'`); | ||
| this.posixCode = code; | ||
| } | ||
| } | ||
|
|
||
| // | ||
| // Helpers for constructing a PosixError when you don't already have an error message. | ||
| // | ||
| static AccessNotPermitted(path) { | ||
| return new PosixError(ErrorCodes.EACCES, `Access not permitted to: '${path}'`); | ||
| } | ||
| static AddressInUse() { | ||
| return new PosixError(ErrorCodes.EADDRINUSE, `Address already in use`); | ||
| } | ||
| static ConnectionRefused() { | ||
| return new PosixError(ErrorCodes.ECONNREFUSED, `Connection refused`); | ||
| } | ||
| static ConnectionReset() { | ||
| return new PosixError(ErrorCodes.ECONNRESET, `Connection reset`); | ||
| } | ||
| static PathAlreadyExists(path) { | ||
| return new PosixError(ErrorCodes.EEXIST, `Path already exists: '${path}'`); | ||
| } | ||
| static FileTooLarge() { | ||
| return new PosixError(ErrorCodes.EFBIG, `File too large`); | ||
| } | ||
| static InvalidArgument(message) { | ||
| return new PosixError(ErrorCodes.EINVAL, message); | ||
| } | ||
| static IO() { | ||
| return new PosixError(ErrorCodes.EIO, `IO error`); | ||
| } | ||
| static IsDirectory(path) { | ||
| return new PosixError(ErrorCodes.EISDIR, `Path is directory: '${path}'`); | ||
| } | ||
| static TooManyOpenFiles() { | ||
| return new PosixError(ErrorCodes.EMFILE, `Too many open files`); | ||
| } | ||
| static DoesNotExist(path) { | ||
| return new PosixError(ErrorCodes.ENOENT, `Path not found: '${path}'`); | ||
| } | ||
| static NotEnoughSpace() { | ||
| return new PosixError(ErrorCodes.ENOSPC, `Not enough space available`); | ||
| } | ||
| static IsNotDirectory(path) { | ||
| return new PosixError(ErrorCodes.ENOTDIR, `Path is not a directory: '${path}'`); | ||
| } | ||
| static DirectoryIsNotEmpty(path) { | ||
| return new PosixError(ErrorCodes.ENOTEMPTY, `Directory is not empty: '${path}'`); | ||
| } | ||
| static OperationNotPermitted() { | ||
| return new PosixError(ErrorCodes.EPERM, 'Operation not permitted'); | ||
| } | ||
| static BrokenPipe() { | ||
| return new PosixError(ErrorCodes.EPIPE, 'Broken pipe'); | ||
| } | ||
| static TimedOut() { | ||
| return new PosixError(ErrorCodes.ETIMEDOUT, 'Connection timed out'); | ||
| } | ||
| } |
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