| 1 | ;
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.inspectProvider = exports.log = void 0;
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| 4 | const debug = require("debug");
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| 5 | const util_1 = require("util");
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| 6 | /**
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| 7 | * Faast.js loggers.
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| 8 | * @remarks
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| 9 | * Unless otherwise specified, each log is disabled by default unless the value
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| 10 | * of the DEBUG environment variable is set to the corresponding value. For
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| 11 | * example:
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| 12 | *
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| 13 | * ```
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| 14 | * $ DEBUG=faast:info,faast:provider <cmd>
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| 15 | * $ DEBUG=faast:* <cmd>
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| 16 | * ```
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| 17 | *
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| 18 | * Logs can also be enabled or disabled programmatically:
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| 19 | * ```typescript
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| 20 | * import { log } from "faastjs"
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| 21 | * log.info.enabled = true;
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| 22 | * log.provider.enabled = true;
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| 23 | * ```
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| 24 | *
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| 25 | * Each log outputs specific information:
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| 26 | *
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| 27 | * `info` - General informational logging.
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| 28 | *
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| 29 | * `minimal` - Outputs only basic information like the function name created in
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| 30 | * the cloud.
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| 31 | *
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| 32 | * `warn` - Warnings. Enabled by default.
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| 33 | *
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| 34 | * `gc` - Garbage collection verbose logging.
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| 35 | *
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| 36 | * `leaks` - Memory leak detector warnings for the cloud function. Enabled by
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| 37 | * default.
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| 38 | *
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| 39 | * `calls` - Verbose logging of each faast.js enabled function invocation.
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| 40 | *
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| 41 | * `webpack` - Verbose logging from webpack and packaging details.
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| 42 | *
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| 43 | * `provider` - Verbose logging of each interaction between faast.js runtime and
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| 44 | * the provider-specific implementation.
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| 45 | *
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| 46 | * `awssdk` - Verbose logging of AWS SDK. This can be useful for identifying
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| 47 | * which API calls are failing, retrying, or encountering rate limits.
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| 48 | *
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| 49 | * @public
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| 50 | */
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| 51 | exports.log = {
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| 52 | info: debug("faast:info"),
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| 53 | minimal: debug("faast:minimal"),
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| 54 | warn: debug("faast:warning"),
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| 55 | gc: debug("faast:gc"),
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| 56 | leaks: debug("faast:leaks"),
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| 57 | calls: debug("faast:calls"),
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| 58 | webpack: debug("faast:webpack"),
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| 59 | provider: debug("faast:provider"),
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| 60 | awssdk: debug("faast:awssdk")
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| 61 | };
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| 62 | /* istanbul ignore next */
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| 63 | function truncate(s, len) {
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| 64 | return s.length > len ? `${s.substr(0, len)}...` : s;
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| 65 | }
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| 66 | function inspectProvider(o) {
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| 67 | if (!exports.log.provider.enabled) {
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| 68 | return "";
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| 69 | }
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| 70 | /* istanbul ignore next */
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| 71 | return truncate(util_1.inspect(o, false, 3), 1024);
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| 72 | }
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| 73 | exports.inspectProvider = inspectProvider;
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| 74 | exports.log.warn.enabled = true;
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| 75 | exports.log.leaks.enabled = true;
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