provide a way to write out profile data to custom path (microsoft#99)

* provide a way to write out profile data to custom path

* Change files

change/lage-2020-10-19-14-19-03-profile-path.json

@@ -0,0 +1,8 @@
+{
+  "type": "minor",
+  "comment": "provide a way to write out profile data to custom path",
+  "packageName": "lage",
+  "email": "[email protected]",
+  "dependentChangeType": "patch",
+  "date": "2020-10-19T21:19:03.137Z"
+}

package.json

@@ -40,7 +40,7 @@
     "fast-glob": "^3.2.2",
     "git-url-parse": "^11.1.2",
     "npmlog": "^4.1.2",
-    "p-profiler": "^0.1.2",
+    "p-profiler": "^0.2.1",
     "workspace-tools": "^0.10.1",
     "yargs-parser": "^18.1.3"
   },

src/context.ts

@@ -1,27 +1,43 @@
 import { Config } from "./types/Config";
 import { RunContext } from "./types/RunContext";
 import Profiler from "p-profiler";
-import { join } from "path";
+import { join, dirname } from "path";
 import { tmpdir } from "os";
 import { mkdirSync } from "fs";
 
-export function createContext(config: Pick<Config, "concurrency">): RunContext {
-  const { concurrency } = config;
+export function createContext(
+  config: Pick<Config, "concurrency" | "profile">
+): RunContext {
+  const { concurrency, profile } = config;
+
+  const useCustomProfilePath = typeof profile === "string";
+
+  const profilerOutputDir = useCustomProfilePath
+    ? dirname(profile as string)
+    : join(tmpdir(), "lage", "profiles");
 
-  const profilerOutputDir = join(tmpdir(), "lage", "profiles");
   mkdirSync(profilerOutputDir, { recursive: true });
 
+  const profiler = new Profiler(
+    useCustomProfilePath
+      ? {
+          concurrency,
+          customOutputPath: profile as string,
+        }
+      : {
+          concurrency,
+          prefix: "lage",
+          outDir: profilerOutputDir,
+        }
+  );
+
   return {
     measures: {
       start: [0, 0],
       duration: [0, 0],
       failedTask: undefined,
     },
     tasks: new Map(),
-    profiler: new Profiler({
-      concurrency,
-      prefix: "lage",
-      outDir: profilerOutputDir,
-    }),
+    profiler,
   };
 }

src/types/CliOptions.ts

@@ -123,7 +123,7 @@ export interface CliOptions {
    *
    * Pay attention to the output summary to find the location of the JSON file.
    */
-  profile: boolean;
+  profile: boolean | string;
 
   /**
    * Ignores certain files when calculating the scope with `--since`

yarn.lock

@@ -8276,10 +8276,10 @@ p-map@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-2.1.0.tgz#310928feef9c9ecc65b68b17693018a665cea175"
   integrity sha512-y3b8Kpd8OAN444hxfBbFfj1FY/RjtTd8tzYwhUqNYXx0fXx2iX4maP4Qr6qhIKbQXI02wTLAda4fYUbDagTUFw==
 
-p-profiler@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/p-profiler/-/p-profiler-0.1.2.tgz#ff737d74eaf429a986da5375fdbacfac4d05b07a"
-  integrity sha512-9aeI5KeYwt7eaxnGR7t+d/8f22cId2yPtPnWWQ2mVrhaFFFedwAuW4A1JbQGaopWaYtRNpv8oQX3HzNalOIixw==
+p-profiler@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/p-profiler/-/p-profiler-0.2.1.tgz#853b5e6b482c5d376e5e2bb1e94bd09c0e715983"
+  integrity sha512-/XDER5u19OrAJ283ofIgw9hsLSoyQnjzki+tmn42vdppHOfo8PgivSSZfwaiyRAzLC2h02+Q+MKiIuuSve+7nw==
 
 p-queue@*:
   version "6.3.0"