New hidden `install-pipelines-cli` command that creates `pipelines` symlink to `databricks` by alyssa-db · Pull Request #3009 · databricks/cli

alyssa-db · 2025-06-06T22:48:51Z

Changes

New file: pipelines.go (package pipelines)
New file: install_pipelines_cli.go (package pipelines)
- To databricks, implements a hidden install-pipelines-cli command that creates a symlink named pipelines pointing to the real databricks binary.
- Handles symlink creation, permission checks, and error handling for existing files/symlinks.
New folder: pipelines/install-pipelines-cli acceptance test
main.go returns a root depending on if the binary is invoked as pipelines/pipelines.exe or databricks

Why

Symlink installation: This enables users to invoke pipelines as a standalone CLI, which internally points to the main databricks binary. This is a step towards a dedicated Pipelines CLI experience, while minimizing code duplication.
Stub CLI: Lays groundwork for future pipelines-specific commands and workflows
Testing: Acceptance test.

Tests

Added acceptance tests for install-pipelines-cli in pipelines to check if success message pipelines successfully installed is printed
Test descriptions:
1. Fresh installation:
  Creates temporary directory and verifies successful symlink creation.
  Validates CLI output and stub command functionality.
2. Already installed scenario:
  Confirms graceful handling when symlink already exists.
3. File collision test:
  Ensures installation fails when regular file exists at target path.
4. Aliased binary execution:
  Verifies installation works when databricks binary is renamed/called via alias.

…atabricks CLI with tests

cmd/cmd.go

cmd/dlt/dlt.go

cmd/dlt/dlt_test.go

kanterov

Left few comments

acceptance/dlt/install-dlt/script

cmd/dlt/dlt.go

Makefile

denik · 2025-06-11T08:53:03Z

acceptance/acceptance_test.go

 	// Make helper scripts available
-	t.Setenv("PATH", fmt.Sprintf("%s%c%s", filepath.Join(cwd, "bin"), os.PathListSeparator, os.Getenv("PATH")))
+	pathDirs := []string{filepath.Join(cwd, "bin"), buildDir}
+	t.Setenv("PATH", fmt.Sprintf("%s%c%s", strings.Join(pathDirs, string(os.PathListSeparator)), os.PathListSeparator, os.Getenv("PATH")))


This adds buildDir to PATH? What for?

If the goal is to expose dlt command to test then we should

modify BuildCLI to link databricks to dlt

export $DLT env var pointing to built dlt (+ replacement)

The intention here was probably so dlt can be found on the build path when it's built, but we should probably export the $DLT env var the same way we do it for CLI and other envs.

qq: maybe I misunderstood, wdym by "+ replacement" here?

acceptance/dlt/install-dlt/output.txt

jefferycheng1 · 2025-06-11T09:07:59Z

I think it's better to write it as an acceptance test, for example as here
https://github.com/databricks/cli/tree/main/acceptance/cmd/unknown-subcommand

Here you can see a short guide how to do that https://github.com/databricks/cli/tree/main/acceptance

@denik / @kanterov high level question here: we should be definitely adding acceptance tests, but in general does it hurt to have unit tests as well? A quick look through the repo and it feels like some files have more unit tests while others don't.

For this command specifically, I think it's helpful to test the edge cases for which PATH might not contain databricks, target local isn't writable etc... WDYT?

denik · 2025-06-11T09:16:30Z

@denik / @kanterov high level question here: we should be definitely adding acceptance tests, but in general does it hurt to have unit tests as well? A quick look through the repo and it feels like some files have more unit tests while others don't.

For this command specifically, I think it's helpful to test the edge cases for which PATH might not contain databricks, target local isn't writable etc... WDYT?

Depends on code being test; if it's a pure function / class, makes sense to cover edge cases with unit tests. If it involves reading env vars, command line arguments then acceptance tests typically provide more realistic setup.

cmd/dlt/dlt.go

cmd/cmd.go

cmd/dlt/install_dlt.go

acceptance/dlt/install-dlt/script

cmd/dlt/install_dlt.go

acceptance/dlt/install-dlt/script

shreyas-goenka · 2025-06-18T09:18:09Z

acceptance/dlt/install-dlt/script

+
+title "Executable not called as databricks"
+cp $CLI notdatabricks
+dlt=$(trace errcode ./notdatabricks install-dlt -o json | jq -r .symlink_path)


It's also not clear here what's being asserted.

In the case that the user has databricks aliased, want to make sure the install-dlt command still works.

cmd/dlt/install_dlt.go

andrewnester · 2025-06-18T15:13:17Z

main.go

+// binary to be used for both DLT and databricks CLI commands.
+func getCommand(ctx context.Context) *cobra.Command {
+	invokedAs := filepath.Base(os.Args[0])
+	if invokedAs == "dlt" || (runtime.GOOS == "windows" && invokedAs == "dlt.exe") {


nit: you can replace it with strings.StartsWith for invokedAs as nit

andrewnester

Approved to unblock but first symlink needs to be renamed from dlt to pipelines

pietern

Please update the PR title and summary to reflect the new state of the PR.

acceptance/pipelines/install-pipelines/script

cmd/pipelines/install_pipelines.go

main.go

github-actions · 2025-06-19T19:06:11Z

An authorized user can trigger integration tests manually by following the instructions below:

Trigger:
go/deco-tests-run/cli

Inputs:

PR number: 3009
Commit SHA: 9156ad52393b0c5260b7573fe18c969c2ae82723

Checks will be approved automatically on success.

Already addressed

## Changes This PR removes the unused standalone pipelines CLI entrypoint infrastructure. The ability to invoke the CLI binary as `pipelines` (instead of `databricks`) was never released and is no longer needed. All pipelines functionality remains available through `databricks pipelines` commands. PRs that added this: - #3009 - #3114 - #3170 - #3177 - #3221 ## Tests Updated acceptance tests. --------- Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

New hidden install-dlt command that creates symlink in same PATH as d…

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…atabricks CLI with tests

alyssa-db requested review from andrewnester, anton-107, denik, pietern and shreyas-goenka as code owners June 6, 2025 22:48

andrewnester reviewed Jun 10, 2025

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alyssa-db added 4 commits June 10, 2025 11:39

addressed code comments prior to testing

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added acceptance tests

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modified acceptance test PATH to add databricks and helper tools

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Merge branch 'databricks:main' into install-dlt-feat

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alyssa-db requested a review from kanterov June 10, 2025 23:38

kanterov reviewed Jun 11, 2025

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made dlt path be based on executable

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alyssa-db force-pushed the install-dlt-feat branch from 8711e41 to ca3d09b Compare June 11, 2025 20:15

added acceptance test python script, refactored install-dlt

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alyssa-db added 3 commits June 12, 2025 12:03

draft acceptance test and acceptance test DLT setup

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acceptance test logic

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windows path

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alyssa-db force-pushed the install-dlt-feat branch from ac4799e to 45c7df1 Compare June 18, 2025 05:50

not clean paths windows

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error order

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alyssa-db force-pushed the install-dlt-feat branch from 554264e to 515956f Compare June 18, 2025 10:42

removed json, added relative path to tests

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andrewnester approved these changes Jun 18, 2025

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alyssa-db enabled auto-merge June 18, 2025 18:43

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andrewnester approved these changes Jun 18, 2025

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alyssa-db added 3 commits June 18, 2025 15:49

modified invoke statement

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Merge branch 'main' into install-dlt-feat

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renamed dlt to pipelines

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alyssa-db requested a review from andrewnester June 19, 2025 01:38

pietern previously requested changes Jun 19, 2025

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alyssa-db changed the title ~~New hidden install-dlt command that creates dlt symlink to databricks~~ New hidden install-pipelines-cli command that creates pipelines symlink to databricks Jun 19, 2025

alyssa-db changed the title ~~New hidden install-pipelines-cli command that creates pipelines symlink to databricks~~ New hidden install-pipelines-cli command that creates pipelines symlink to databricks Jun 19, 2025

renamed to install-pipelines-cli

9156ad5

alyssa-db force-pushed the install-dlt-feat branch from 0fd2c95 to 9156ad5 Compare June 19, 2025 19:06

alyssa-db requested a review from pietern June 19, 2025 19:15

andrewnester approved these changes Jun 20, 2025

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andrewnester merged commit d5108bf into databricks:main Jun 20, 2025
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pietern mentioned this pull request Jan 21, 2026

Remove unused standalone pipelines CLI entrypoint #4343

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