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author | Sebastian <sebasjm@gmail.com> | 2021-06-08 15:56:27 -0300 |
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committer | Sebastian <sebasjm@gmail.com> | 2021-06-08 17:18:23 -0300 |
commit | 2c5612fd63f766ce19a9f885e5142b04bcf11604 (patch) | |
tree | f3287775a47bd7d5ad3a3edbbdd341fb9ab3d1e7 /packages/taler-util/src/logging.ts | |
parent | b9b6ac0cdac6796139e604f9300879a2cb57ec44 (diff) | |
download | wallet-core-2c5612fd63f766ce19a9f885e5142b04bcf11604.tar.xz |
moving i18n into taler util
Diffstat (limited to 'packages/taler-util/src/logging.ts')
-rw-r--r-- | packages/taler-util/src/logging.ts | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/packages/taler-util/src/logging.ts b/packages/taler-util/src/logging.ts new file mode 100644 index 000000000..4f48e24da --- /dev/null +++ b/packages/taler-util/src/logging.ts @@ -0,0 +1,100 @@ +/* + 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" && typeof process.release !== "undefined" && process.release.name === "node"; + +function writeNodeLog( + message: any, + tag: string, + level: string, + args: any[], +): void { + try { + 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"); + } catch (e) { + // This can happen when we're trying to log something that doesn't want to be + // converted to a string. + process.stderr.write(`${new Date().toISOString()} (logger) FATAL `); + if (e instanceof Error) { + process.stderr.write("failed to write log: "); + process.stderr.write(e.message); + } + process.stderr.write("\n"); + } +} + +/** + * Logger that writes to stderr when running under node, + * and uses the corresponding console.* method to log in the browser. + */ +export class Logger { + constructor(private tag: string) {} + + info(message: string, ...args: any[]): void { + if (isNode) { + writeNodeLog(message, this.tag, "INFO", args); + } else { + console.info( + `${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, + ); + } + } +} |