lerna run prints "success" next to failed packages

Let’s assume I want to run all unit tests from all packages in my monorepo. So I’d call lerna run --no-bail test. I’d specify --no-bail because I don’t want to abort on the first error. I want to see which packages succeed and which fail. When Lerna is done, it prints a table that looks like this:

lerna success run Ran npm script ‘test’ in 5 packages in 0.3s: lerna success - package01 lerna success - package02 lerna success - package03 lerna success - package04 lerna success - package05

The problem is that Lerna prints “success” next to each package, even if the script for that package actually failed.

Expected Behavior

I’d expect “success” to be printed only if the error code of the packages’s script was zero. Otherwise, I’d expect “failure” or something similar to be printed next to the failed package.

Current Behavior

Currently, Lerna prints “success” next to every single package, even if its script failed and returned a non-zero exit code.

Steps to Reproduce (for bugs)

1. Set up a monorepo with multiple packages.
2. Create a script “test” in each monorepo. Make some scripts succeed (by calling “true” on Unix), make others fail (by calling “false” on Unix).
3. Run lerna run --no-bail test

lerna.json

{
  "packages": ["packages/*"],
  "version": "1.0.0",
  "npmClient": "yarn",
  "useWorkspaces": true
}

Context

I want to run the same task on all packages (no fail-fast) and see which packages succeeded and which didn’t.

Your Environment

Executable	Version
lerna --version	3.13.1
npm --version	5.6.0
yarn --version	1.13.0
node --version	v8.11.3

OS	Version
macOS High Sierra	10.13.6

[buschtoens]

I still believe that this is fundamentally broken. I would expect that --no-bail:

• still prints all output (including stderr), exactly like without --no-bail
• runs all scripts, even if one fails
• prints a summary in the end, where failed packages are logged as such, not as success
• returns a non-zero exit code, if any package fails
  • if only one package fails, returns that exit code
  • if more than one package fails, exits with 1 (or something else?)

I would really, really like to fix this, as I think --no-bail is basically pretty much useless otherwise, at least to me. Do you think we can / should fix the behavior of --no-bail or rather add a new flag and maybe deprecate --no-bail?

[lumberjack-daniel]

Digging through log files of a huge mono-repo across all packages to determine which package failed is cumbersome.

Instead, something like this would be nice, when --no-bail is used:

timestamp pkg exitcode status
[2021-09-29T20:16:16.299Z] lerna pkg1	0 	success
[2021-09-29T20:16:16.299Z] lerna pkg2   127	failed
[2021-09-29T20:16:16.299Z] lerna pkg3	0  	success
[2021-09-29T20:16:16.299Z] lerna ERR! One or more packages received non-zero exit code during execution