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README.md

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todocheck

todocheck is a static code analyzer for annotated TODO comments.

It let's you create actionable TODOs by annotating them with issues from any of the supported issue trackers.
No longer will you discover arcane, undocumented TODO comments, scattered across your code base.

See How it works for more info.

Table of Contents

How it works

Here's an example of an annotated TODO:

// TODO J123: Fix this typo
func fuu() {
    ...
}

In case the linked issue J123 is open, todocheck will not report any error. In case it is closed or doesn't exist, todocheck will show an error:

ERROR: Issue is closed.
myproject/main.go:12: // TODO J123: Fix this typo

ERROR: Issue doesn't exist.
myproject/main.go:14: // TODO J321: A non-existent issue

If there is an unannotated TODO in your code base, todocheck will also report it as a malformed TODO:

ERROR: Malformed todo.
myproject/main.go:16: // TODO - This is not a valid annotated todo

todocheck demo gif

Only TODOs with valid, open issues are allowed to exist in the codebase.

By integrating todocheck in your development workflow & CI pipeline, you can ensure that there will be no half-baked issue closed with pending TODOs in the codebase.

Installation

Download the binary for your OS from the latest release.

Optionally verify the sha256 checksum:

  • For macos, run shasum -a 256 <binary> & verify it's the same as <binary>.sha256
  • For linux, run sha256sum <binary>
  • For windows, use a SHA256 checksum utility

Afterwards, verify the shasum is the same as <binary>.sha256.

Place the binary in a folder, shined upon by your $PATH.

  • For macos & linux, that's typically /usr/local/bin/

Quickstart

You will need a .todocheck.yaml configuration file in the root of your project first.
It configures todocheck's integration with your project's issue tracker.

For a public github project, this is what the config file should contain:

origin: github.com/user/repository
issue_tracker: GITHUB

See Supported Issue Trackers for more issue tracker options.

After the config file is in place, simply run todocheck from the root of your project.

In case you are running todocheck from a different directory, you can specify your project's path using the --basepath flag and the project configuration with --config:

$ todocheck --basepath path/to/project --config path/to/config/.todocheck.yaml

If the --config option is not specified, the configuration in the basepath will be used.
In the example above, it would look for it in path/to/project/.todocheck.yaml.

Supported Issue Trackers

Currently, todocheck supports the following issue trackers:

Issue Tracker Description
Github Both public & private repositories are supported
Gitlab Both public & private repositories are supported
Jira Supported via offline tokens
Pivotal Tracker Supported via an API token
Redmine Supports public access with no auth & private access via an API token

Github

To integrate with a public github repository, specify the origin of your repo and the GITHUB issue tracker in your .todocheck.yaml configuration:

origin: github.com/user/repository
issue_tracker: GITHUB

To integrate with a private github repository, you'll also need to specify the auth section with the apitoken type:

origin: github.com/user/repository
issue_tracker: GITHUB
auth:
  type: apitoken

The first time you run the application, it will ask for your personal access token: todocheck Github PAT Prompt

After you've specified it, it will store it in the auth tokens cache for subsequent executions. See the Authentication section for more info.

Gitlab

To integrate with a public gitlab repository, specify the origin of your repo and the GITLAB issue tracker in your .todocheck.yaml configuration:

origin: gitlab.com/user/repository
issue_tracker: GITLAB

To integrate with a private gitlab repository, you'll also need to specify the auth section with the apitoken type:

origin: github.com/user/repository
issue_tracker: GITLAB
auth:
  type: apitoken

The first time you run the application, it will ask for your personal access token:

After you've specified it, it will store it in the auth tokens cache for subsequent executions. See the Authentication section for more info.

Jira

To integrate with your organization's Jira, you'll need to specify JIRA as your issue tracker, the origin of your jira server instance, along with an offline token:

origin: https://myjira.awesomeorg.com
issue_tracker: JIRA
auth:
  type: offline
  offline_url: https://myjira.awesomeorg.com/offline

After you run todocheck for the first time, it will request your offline token: Offline token prompt example

Example offline token page: Offline token page example

After you've given the offline token to todocheck's prompt, it will store it in the auth tokens cache for subsequent executions.

See the Authentication section for more info.

Pivotal Tracker

To integrate with a pivotal tracker project, specify the origin of your project and the PIVOTAL_TRACKER issue tracker in your .todocheck.yaml configuration.
You should also specify the apitoken as an auth type:

origin: pivotaltracker.com/projects/PROJECT_ID
issue_tracker: PIVOTAL_TRACKER
auth:
  type: apitoken

The first time you run the application, it will ask for your API Token.

After you've specified it, it will store it in the auth tokens cache for subsequent executions. See the Authentication section for more info.

Note that for Pivotal Tracker, you'll need to specify your TODOs without the # as they're typically shown in the site.
For example:

// TODO 123456: This is a valid todo

// TODO #123456: This one is not

Redmine

To integrate with a redmine issue tracker project, specify the origin of your installation (without project path) and the REDMINE issue tracker in your .todocheck.yaml configuration.

You should also specify the apitoken as an auth type if you have authentication enabled on your server:

origin: https://redmine.mycorp.com
issue_tracker: REDMINE
auth:
  type: apitoken

Alternatively, if no authentication is required, don't include the auth section.

The first time you run the application, it will ask for your API Token.

After you've specified it, it will store it in the auth tokens cache for subsequent executions. See the Authentication section for more info.

In order to integrate todocheck with your redmine server, you'll need to enable the server's rest API and, optionally, enable authentication - See Docs.

Supported Programming Languages

Currently, todocheck has parsers for three different types of comments:

  • Standard comments like // and /* */
  • Scripts using single-line comments #
  • Python with its # single-line and """ multi-line comments

Based on this, here are the supported languages:

Supported Languages Description
Bash/Zsh *.sh/*.bash/*.zsh extension. Supports # single-line comments
C *.c extension. Supports single-line // comments and multi-line /* */ comments
C++ *.cpp extension. Supports single-line // comments and multi-line /* */ comments
CSharp *.cs extension. Supports single-line // comments and multi-line /* */ comments
Golang *.go extension. Supports single-line // comments and multi-line /* */ comments
Groovy *.groovy, *.gvy, *.gy, *.gsh extensions. Supports single-line // comments and multi-line /* */ comments
Java *.java extension. Supports single-line // comments and multi-line /* */ comments
JavaScript/Typescript *.js/*.ts extension. Supports single-line // comments and multi-line /* */ comments
PHP *.php extension. Supports single-line # and // comments and multi-line /* */ comments
Python *.py extension. Supports single-line # comments and multi-line """ comments
R *.R extension. Supports single-line // comments and multi-line /* */ comments
Rust *.rs extension. Supports single-line // comments and multi-line /* */ comments
Scala *.scala, *.sc extensions. Supports single-line // comments and multi-line /* */ comments
Swift *.swift extension. Supports single-line // comments and multi-line /* */ comments

If you don't see your favorite language in this table, but it does use one of the supported comment formats, submit an issue here

Ignored Files & Directories

If you want certain project files not to be included for todocheck processing, you can specify that in an ignored section in the .todocheck.yaml configuration:

origin: some.origin.com
issue_tracker: JIRA
ignored:
  - vendor-folder/
  - scripts/*.sh

Ignored files/folders can be specified via standard pattern-matching. Hidden files (dotfiles, i.e. .git, .gitignore, etc) are ignored by default.

Supported Output Formats

Currently, todocheck supports two kinds of output - standard & json.

The standard format is meant to be user-friendly & used in the normal day-to-day workflow.

ERROR: Malformed todo
tmp/main.groovy:2: // TODO: Invalid todo
        > TODO should match pattern - TODO {task_id}:

ERROR: Malformed todo
tmp/main.groovy:12: // TODO: Invalid todo
        > TODO should match pattern - TODO {task_id}:

ERROR: Issue doesn't exist
tmp/main.groovy:15: // TODO 3: A non-existent issue

The json output is meant to be used for integrating todocheck in third-party systems, such as an IDE plugin.
To use json output, use the --format json flag.

[
   {
      "type":"Malformed todo",
      "filename":"tmp/main.groovy",
      "line":2,
      "message":"TODO should match pattern - TODO {task_id}:"
   },
   {
      "type":"Malformed todo",
      "filename":"tmp/main.groovy",
      "line":12,
      "message":"TODO should match pattern - TODO {task_id}:"
   },
   {
      "type":"Issue doesn't exist",
      "filename":"tmp/main.groovy",
      "line":15,
      "message":""
   }
]

Authentication

None

For public repositories, todocheck requires no authentication as the issues in the issue tracker are publicly available. In this case, you need not specify any auth section in your configuration or explicitly set it as none:

origin: github.com/user/repository
issue_tracker: GITHUB
auth: 
  type: none

API Token/Offline Token

For private repositories, todocheck requires an authentication token which the user specifies via a secure prompt.

For github & gitlab, there is a personal access token one can get in his user settings & todocheck can use that to read your repository's issues. Github docs Gitlab docs

To use this authentication type, configure the auth type as apitoken:

origin: github.com/user/repository
issue_tracker: GITHUB
auth: 
  type: apitoken

For Jira, you'll need to specify an offline token:

origin: https://myjira.awesomeorg.com
issue_tracker: JIRA
auth:
  type: offline
  offline_url: https://myjira.awesomeorg.com/offline

An offline token is one which your user can get by accessing a specific page, where your server generates an access token.

Example offline token page: Offline token page example

After you've received either an api token (github/gitlab) or an offline token, you can paste it in todocheck's secure prompt when asked.
Example with github PAT prompt: todocheck Github PAT Prompt

Afterwards, todocheck will not ask for your token again as it will store it in its tokens cache.

Authentication Tokens Cache

Whenever a user grants todocheck an auth token, the token will be stored in a file ~/.todocheck/authtokens.yaml.

If that file doesn't already exist, it will be created with read/write permissions for current user only (permission 0700).

This file stores a key-value mapping of project origin to auth token.
Whenever todocheck runs, it first checks this file for an existing authentication token before contacting the issue tracker's server.

If you want to specify a different tokens cache, you can set the tokens_cache section in your .todocheck.yaml configuration:

# remainder omitted
auth:
  # remainder omitted
  tokens_cache: path/to/tokens_cache

Auth Token via Environment Variable

If you need to pass an authentication token via an environment variable, use the TODOCHECK_AUTH_TOKEN environment variable.

Example usage:

TODOCHECK_AUTH_TOKEN=<secret-token> todocheck --basepath path/to/project

This can be useful when you want to integrate todocheck in your CI pipeline.

Configuration

In your .todocheck.yaml configuration, you have the following configuration options:

  • origin - the origin of your remote repository/issue tracker (example: github.com/golang/go)
  • issue_tracker - the issue tracker type you're using. Possible options - GITHUB, GITLAB, JIRA
  • ignored - a list of directories/files todocheck should ignore. Supports pattern-macthing, e.g. *.sh.
  • auth - the authentication configuration for your issue tracker. If not present, it defaults to auth type: none
    • type - the type of authentication. Possible options - none (default), offline, apitokenA
    • offline_url - the url for fetching offline tokens. Only used when type is offline
    • tokens_cache - the location of your auth tokens cache. Defaults to ~/.todocheck/authtokens.yaml

In your tokens cache (default: ~/.todocheck/authtokens.yaml), authentication tokens are stored in the following format:

tokens:
  github.com/user1/repo1: SECRET_TOKEN_1
  gitlab.com/user2/repo2: SECRET_TOKEN_2
  https://jira.awesomeorg.com/offline: SECRET_TOKEN_3

If you'd like to explicitly specify an access token in this file, feel free to do so. This will let the user not have to manually input the token on the first todocheck execution.

This can be used e.g. in a CI environment, in an initial laptop setup script, etc.
Alternatively, use an Auth Token via Environment Variable

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