Add support to helper.py for external projects for all subcommands except `download_corpora`.
External users just need to specify `build_integration_path`, `project_src_path` and `external`.
Also do a big refactor to pass a project object as part of args instead of a string containing the name of the project or its
path.
Related: #6125
Fix behavior of build_image --pull (Fixes#5640)
Also refactor helper.py:
1. Change behavior of functions so that most return True on success and False on failure.
2. Only main will return 1 on failure and 0 on success now. Previous behavior was very error prone.
3. Rename _get_output_dir to _get_out_dir.
4. Make function docstrings use descriptive tense.
5. Make helper.py print help when no argument is specified.
Fix some coding and style issues.
1. Treat "testcase" as one word. This is consistent with ClusterFuzz.
2. Treat "stacktrace" as one word. This is consistent with ClusterFuzz.
3. Fix spelling of comments and words in code.
4. Use descriptive style docstrings and remove unnecessary clutter
(e.g. "Test the functionality of foo_function function in bar module"
becomes "Tests foo_function."
5. Use JSON for a list needed in testing instead of pickle.
* Max comments
* Added bisection tests
* Added test cases
* Docker run command added to build_specific commit
* Infer main repo uses docker image rather than docker file
* Added mores tests for repo infer
* With verbosity
* Formatting
* Bisection fixed
* Formatting updates
* Oliver small comments.
* Script infer main repo
* Detect repo and test module finished
* Detect main repo from script
* Regex searching
* Regex searching
* Max comments + bisector test script
* Oliver comments
* Max's comments
* String concat update
* Jonathan comments
* Starting the git python API
* repo manager working with tests
* Docker repo manager working, can update image with specific commit
* Working bisection
* Formatting and linting
* Working bisection
* Specific commit checkout
* Specific commit checkout
* Removed bisector and updated helper
* remove branch bug
* Max comments
* Added tests for infer main repo
* Oliver comments
* helper.py function names change
* Oliver comments pt. 2
* Olivers comments
* Formatting updates
* Removing DockerRepoManager class
* Removing DockerRepoManager class
* Changing from copying repo to docker image to mounting repo on docker image
* Jonathan comments
* Build image from commit tests
* Oliver comments pt.3
* Oliver comments pt.4
* Linting
* Max comments pt. 2
* change check commit exists
* Max comments pt. 3
* Regex updated
* Formatting updates
jonathanmetzman