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author | Florian Dold <florian.dold@gmail.com> | 2020-08-03 13:00:48 +0530 |
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committer | Florian Dold <florian.dold@gmail.com> | 2020-08-03 13:01:05 +0530 |
commit | ffd2a62c3f7df94365980302fef3bc3376b48182 (patch) | |
tree | 270af6f16b4cc7f5da2afdba55c8bc9dbea5eca5 /packages/taler-wallet-core/src/util/logging.ts | |
parent | aa481e42675fb7c4dcbbeec0ba1c61e1953b9596 (diff) | |
download | wallet-core-ffd2a62c3f7df94365980302fef3bc3376b48182.tar.xz |
modularize repo, use pnpm, improve typechecking
Diffstat (limited to 'packages/taler-wallet-core/src/util/logging.ts')
-rw-r--r-- | packages/taler-wallet-core/src/util/logging.ts | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/packages/taler-wallet-core/src/util/logging.ts b/packages/taler-wallet-core/src/util/logging.ts new file mode 100644 index 000000000..e4f3be2ff --- /dev/null +++ b/packages/taler-wallet-core/src/util/logging.ts @@ -0,0 +1,89 @@ +/* + This file is part of TALER + (C) 2019 GNUnet e.V. + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +/** + * Check if we are running under nodejs. + */ + +const isNode = + typeof process !== "undefined" && process.release.name === "node"; + +function writeNodeLog( + message: string, + tag: string, + level: string, + args: any[], +): void { + process.stderr.write(`${new Date().toISOString()} ${tag} ${level} `); + process.stderr.write(message); + if (args.length != 0) { + process.stderr.write(" "); + process.stderr.write(JSON.stringify(args, undefined, 2)); + } + process.stderr.write("\n"); +} + +/** + * Logger that writes to stderr when running under node, + * and uses the corresponding console.* method to log in the browser. + */ +export class Logger { + constructor(private tag: string) {} + + info(message: string, ...args: any[]): void { + if (isNode) { + writeNodeLog(message, this.tag, "INFO", args); + } else { + console.info( + `${new Date().toISOString()} ${this.tag} INFO ` + message, + ...args, + ); + } + } + + warn(message: string, ...args: any[]): void { + if (isNode) { + writeNodeLog(message, this.tag, "WARN", args); + } else { + console.warn( + `${new Date().toISOString()} ${this.tag} INFO ` + message, + ...args, + ); + } + } + + error(message: string, ...args: any[]): void { + if (isNode) { + writeNodeLog(message, this.tag, "ERROR", args); + } else { + console.info( + `${new Date().toISOString()} ${this.tag} ERROR ` + message, + ...args, + ); + } + } + + trace(message: any, ...args: any[]): void { + if (isNode) { + writeNodeLog(message, this.tag, "TRACE", args); + } else { + console.info( + `${new Date().toISOString()} ${this.tag} TRACE ` + message, + ...args, + ); + } + } +} |