Fix false booleans in config file being parsed as true (#8053)

Options like `enable-remote-storage: false` in config.yaml are converted to
`--enable-remote-storage=false`, but the parser set any boolean option to
true regardless of its value. Booleans set to false are now ignored, the
same way optional strings set to false already are.

src/node/cli.ts

@@ -436,7 +436,11 @@ export const parse = (
 
       const option = options[key]
       if (option.type === "boolean") {
-        ;(args[key] as boolean) = true
+        // Booleans set to false (for example `--flag=false`, which is also how
+        // false values from the config file are passed in) are ignored.
+        if (value !== "false") {
+          ;(args[key] as boolean) = true
+        }
         continue
       }
 

test/unit/node/cli.test.ts

@@ -578,6 +578,19 @@ describe("parser", () => {
   it("should ignore optional strings set to false", async () => {
     expect(parse(["--cert=false"])).toEqual({})
   })
+  it("should ignore booleans set to false", async () => {
+    expect(parse(["--disable-telemetry=false"])).toEqual({})
+  })
+  it("should parse booleans set to false in the config file", () => {
+    const configContents = `
+      disable-telemetry: false
+      disable-update-check: true
+    `
+    expect(parseConfigFile(configContents, "/fake-config-path")).toEqual({
+      config: "/fake-config-path",
+      "disable-update-check": true,
+    })
+  })
   it("should use last flag", async () => {
     expect(parse(["--port", "8081", "--port", "8082"])).toEqual({
       port: 8082,