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Rebar3

rebar3

An Erlang build tool

Runs as rebar3|macOS, Linux, Windows|rebar3.org

Open form in Otty otty.toml

Command form

ai-draft · 5 tasks · 13 fields

The common rebar3 jobs: compile, clean, run EUnit or Common Test, and create a project from a template. Releases, dialyzer, plugins and profiles are not covered.

Opens the form; the finished command lands at your prompt, unrun

Run in Otty

otty gui rebar3

`rebar3 compile`

Compile the project

Compile project apps and dependencies.

Compile the projectExample values, fixed in this page — nothing here reaches a terminal

Basic

Dependencies only

--deps_only

TasksEach one presets the form for one job

Compile the project

deps_only

ParametersOnly these flags are editable in the form

Dependencies only

boolean

--deps_only-d

`rebar3 clean`

Clean build output

Remove compiled BEAM files.

Clean build outputExample values, fixed in this page — nothing here reaches a terminal

Basic

Include dependencies

--all

Apps (comma separated)

string

TasksEach one presets the form for one job

Clean build output

allapps

ParametersOnly these flags are editable in the form

Include dependencies

boolean

--all-a

Apps (comma separated)

string

--apps

`rebar3 eunit`

Run EUnit tests

Run EUnit tests on project apps.

Run EUnit testsExample values, fixed in this page — nothing here reaches a terminal

Basic

Applications (comma separated)

string

Generate cover data

--cover

TasksEach one presets the form for one job

Run EUnit tests

applicationcover

ParametersOnly these flags are editable in the form

Applications (comma separated)

string

--application

Generate cover data

boolean

--cover-c

`rebar3 ct`

Run Common Test

Run Common Test suites under test/.

Run Common TestExample values, fixed in this page — nothing here reaches a terminal

Basic

Suites (comma separated paths)

string

Groups (comma separated)

string

Cases (comma separated)

string

Generate cover data

--cover

Verbose

--verbose

TasksEach one presets the form for one job

Run Common Test

suitegroupcasecoververbose

ParametersOnly these flags are editable in the form

Suites (comma separated paths)

string

--suite

Groups (comma separated)

string

--group

Cases (comma separated)

string

--case

Generate cover data

boolean

--cover-c

Verbose

boolean

--verbose-v

`rebar3 new`

Create a project

Create a project from a template such as app, lib or release.

Create a projectExample values, fixed in this page — nothing here reaches a terminal

Basic

Template*

string

Project name*

string

TasksEach one presets the form for one job

Create a project

templatename

ParametersOnly these flags are editable in the form

Template

string · positional 0

applibrelease

Project name

string · positional 1

Overwrite existing files

boolean

--force-f

SourcesEvery flag above is checked against these

docs

compile -d/--deps_only Only compile dependencies, no project apps will be built

manual2026-10-27

rebar3.org

docs

clean --all/-a Clean all apps, including the dependencies --apps Clean a specific list of apps or dependencies

manual2026-10-27

rebar3.org

docs

eunit --application Application test suites to run. -c, --cover Generate cover data. Defaults to false

manual2026-10-27

rebar3.org

docs

ct --suite Compile and run all test suites specified. --group Test groups to run. --case List of test cases to run. --cover, -c --verbose, -v

manual2026-10-27

rebar3.org

docs

rebar3 new <template> <project-name> --force, -f Overwrite existing files.

manual2026-10-27

rebar3.org

Before it fills your prompt, Otty checks the installed rebar3 against its version. A form that does not match your version is not offered.