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A set of utilities that enable the management of "todo" lint violations.

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@lint-todo/utils

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A collection of utilities to generate and store lint item metadata.

Those utilities are:

Functions

buildTodoDatum(lintResult, lintMessage, todoConfig)

Adapts a LintResult to a TodoData. FilePaths are absolute when received from a lint result, so they're converted to relative paths for stability in serializing the contents to disc.

todoStorageFileExists(baseDir)

Determines if the .lint-todo storage file exists.

ensureTodoStorageFile(baseDir)

Creates, or ensures the creation of, the .lint-todo file.

getTodoStorageFilePath(baseDir)
hasConflicts(todoContents)

Determines if the .lint-todo storage file has conflicts.

resolveConflicts(operations)

Resolves git conflicts in todo operations by removing any lines that match conflict markers.

readTodoStorageFile(todoStorageFilePath)

Reads the .lint-todo storage file.

writeTodoStorageFile(todoStorageFilePath, operations)

Writes the operations to the .lint-todo storage file to the path provided by todoStorageFilePath.

writeTodos(baseDir, maybeTodos, options)

Writes files for todo lint violations. One file is generated for each violation, using a generated hash to identify each.

Given a list of todo lint violations, this function will also delete existing files that no longer have a todo lint violation.

readTodos(baseDir, options, shouldLock)

Reads all todo files in the .lint-todo file.

readTodosForFilePath(baseDir, options, shouldLock)

Reads todo files in the .lint-todo file for a specific filePath.

readTodoData(baseDir, options)

Reads todos in the .lint-todo file and returns Todo data in an array.

readTodoDataForFilePath(baseDir, options)

Reads todos for a single filePath in the .lint-todo file and returns Todo data in an array.

generateTodoBatches(baseDir, maybeTodos, options)

Gets 4 data structures containing todo items to add, remove, those that are expired, and those that are stable (not to be modified).

getTodoBatches(maybeTodos, existing, options)

Gets 4 data structures containing todo items to add, remove, those that are expired, and those that are stable (not to be modified).

applyTodoChanges(baseDir, add, remove, shouldLock)

Applies todo changes, either adding or removing, based on batches from getTodoBatches.

compactTodoStorageFile(baseDir)

Compacts the .lint-todo storage file.

getTodoConfig(baseDir, engine, customDaysToDecay)

Gets the todo configuration from one of a number of locations.

validateConfig(baseDir)

Validates whether we have a unique config in a single location.

getSeverity(todo, today)

Returns the correct severity level based on the todo data's decay dates.

isExpired(date, today)

Evaluates whether a date is expired (earlier than today)

getDatePart(date)

Converts a date to include year, month, and day values only (time is zeroed out).

differenceInDays(startDate, endDate)

Returns the difference in days between two dates.

format(date)

Formats the date in short form, eg. 2021-01-01

buildRange(line, column, endLine, endColumn)

Converts node positional numbers into a Range object.

readSource(filePath)

Reads a source file, optionally caching it if it's already been read.

getSourceForRange(source, range)

Extracts a source fragment from a file's contents based on the provided Range.

buildTodoDatum(lintResult, lintMessage, todoConfig) ⇒

Adapts a LintResult to a TodoData. FilePaths are absolute when received from a lint result, so they're converted to relative paths for stability in serializing the contents to disc.

Kind: global function
Returns: - A TodoData object.

Param Description
lintResult The lint result object.
lintMessage A lint message object representing a specific violation for a file.
todoConfig An object containing the warn or error days, in integers.

todoStorageFileExists(baseDir) ⇒

Determines if the .lint-todo storage file exists.

Kind: global function
Returns: - true if the todo storage file exists, otherwise false.

Param Description
baseDir The base directory that contains the .lint-todo storage file.

ensureTodoStorageFile(baseDir) ⇒

Creates, or ensures the creation of, the .lint-todo file.

Kind: global function
Returns: - The todo storage file path.

Param Description
baseDir The base directory that contains the .lint-todo storage file.

getTodoStorageFilePath(baseDir) ⇒

Kind: global function
Returns: - The todo storage file path.

Param Description
baseDir The base directory that contains the .lint-todo storage file.

hasConflicts(todoContents) ⇒

Determines if the .lint-todo storage file has conflicts.

Kind: global function
Returns: true if the file has conflicts, otherwise false.

Param Description
todoContents The unparsed contents of the .lint-todo file.

resolveConflicts(operations) ⇒

Resolves git conflicts in todo operations by removing any lines that match conflict markers.

Kind: global function
Returns: An array of string operations excluding any operations that were identified as git conflict lines.

Param Description
operations An array of string operations that are used to recreate todos.

readTodoStorageFile(todoStorageFilePath) ⇒

Reads the .lint-todo storage file.

Kind: global function
Returns: A array of todo operations.

Param Description
todoStorageFilePath The .lint-todo storage file path.

writeTodoStorageFile(todoStorageFilePath, operations)

Writes the operations to the .lint-todo storage file to the path provided by todoStorageFilePath.

Kind: global function

Param Description
todoStorageFilePath The .lint-todo storage file path.
operations An array of string operations that are used to recreate todos.

writeTodos(baseDir, maybeTodos, options) ⇒

Writes files for todo lint violations. One file is generated for each violation, using a generated hash to identify each.

Given a list of todo lint violations, this function will also delete existing files that no longer have a todo lint violation.

Kind: global function
Returns: - The counts of added and removed todos.

Param Description
baseDir The base directory that contains the .lint-todo storage file.
maybeTodos The linting data, converted to TodoData format.
options An object containing write options.

readTodos(baseDir, options, shouldLock) ⇒

Reads all todo files in the .lint-todo file.

Kind: global function
Returns: - A Map of FilePath/TodoMatcher.

Param Default Description
baseDir The base directory that contains the .lint-todo storage file.
options An object containing read options.
shouldLock true True if the .lint-todo storage file should be locked, otherwise false. Default: true.

readTodosForFilePath(baseDir, options, shouldLock) ⇒

Reads todo files in the .lint-todo file for a specific filePath.

Kind: global function
Returns: - A Map of FilePath/TodoMatcher.

Param Default Description
baseDir The base directory that contains the .lint-todo storage file.
options An object containing read options.
shouldLock true True if the .lint-todo storage file should be locked, otherwise false. Default: true.

readTodoData(baseDir, options) ⇒

Reads todos in the .lint-todo file and returns Todo data in an array.

Kind: global function
Returns: An array of TodoData

Param Description
baseDir The base directory that contains the .lint-todo storage file.
options An object containing read options.

readTodoDataForFilePath(baseDir, options) ⇒

Reads todos for a single filePath in the .lint-todo file and returns Todo data in an array.

Kind: global function
Returns: An array of TodoData

Param Description
baseDir The base directory that contains the .lint-todo storage file.
options An object containing read options.

generateTodoBatches(baseDir, maybeTodos, options) ⇒

Gets 4 data structures containing todo items to add, remove, those that are expired, and those that are stable (not to be modified).

Kind: global function
Returns: - An object of TodoBatches.

Param Description
baseDir The base directory that contains the .lint-todo storage file.
maybeTodos The linting data for violations.
options An object containing write options.

getTodoBatches(maybeTodos, existing, options) ⇒

Gets 4 data structures containing todo items to add, remove, those that are expired, and those that are stable (not to be modified).

Kind: global function
Returns: - An object of TodoBatches.

Param Description
maybeTodos The linting data for violations.
existing Existing todo lint data.
options An object containing write options.

applyTodoChanges(baseDir, add, remove, shouldLock)

Applies todo changes, either adding or removing, based on batches from getTodoBatches.

Kind: global function

Param Default Description
baseDir The base directory that contains the .lint-todo storage file.
add Batch of todos to add.
remove Batch of todos to remove.
shouldLock true True if the .lint-todo storage file should be locked, otherwise false. Default: true.

compactTodoStorageFile(baseDir) ⇒

Compacts the .lint-todo storage file.

Kind: global function
Returns: The count of compacted todos.

Param Description
baseDir The base directory that contains the .lint-todo storage file.

getTodoConfig(baseDir, engine, customDaysToDecay) ⇒

Gets the todo configuration from one of a number of locations.

Kind: global function
Returns: - The todo config object.

Param Description
baseDir The base directory that contains the project's package.json.
engine The engine for this configuration, eg. eslint
customDaysToDecay The optional custom days to decay configuration.

Example
Using the package.json

{
  "lintTodo": {
    "some-engine": {
      "daysToDecay": {
        "warn": 5,
        "error": 10
      },
      "daysToDecayByRule": {
        "no-bare-strings": { "warn": 10, "error": 20 }
      }
    }
  }
}

Example
Using the .lint-todorc.js file

module.exports = {
  "some-engine": {
    "daysToDecay": {
      "warn": 5,
      "error": 10
    },
    "daysToDecayByRule": {
      "no-bare-strings": { "warn": 10, "error": 20 }
    }
  }
}

Example

Using environment variables (`TODO_DAYS_TO_WARN` or `TODO_DAYS_TO_ERROR`)
	- Env vars override package.json config

Example

Passed in directly, such as from command line options.
	- Passed in options override both env vars and package.json config

validateConfig(baseDir) ⇒

Validates whether we have a unique config in a single location.

Kind: global function
Returns: A ConfigValidationResult that indicates whether a config is unique

Param Description
baseDir The base directory that contains the project's package.json.

getSeverity(todo, today) ⇒

Returns the correct severity level based on the todo data's decay dates.

Kind: global function
Returns: Severity - the lint severity based on the evaluation of the decay dates.

Param Description
todo The todo data.
today A number representing a date (UNIX Epoch - milliseconds)

isExpired(date, today) ⇒

Evaluates whether a date is expired (earlier than today)

Kind: global function
Returns: true if the date is earlier than today, otherwise false

Param Description
date The date to evaluate
today A number representing a date (UNIX Epoch - milliseconds)

getDatePart(date) ⇒

Converts a date to include year, month, and day values only (time is zeroed out).

Kind: global function
Returns: Date - A date with the time zeroed out eg. '2021-01-01T08:00:00.000Z'

Param Description
date The date to convert

differenceInDays(startDate, endDate) ⇒

Returns the difference in days between two dates.

Kind: global function
Returns: a number representing the days between the dates

Param Description
startDate The start date
endDate The end date

format(date) ⇒

Formats the date in short form, eg. 2021-01-01

Kind: global function
Returns: A string representing the formatted date

Param Description
date The date to format

buildRange(line, column, endLine, endColumn) ⇒

Converts node positional numbers into a Range object.

Kind: global function
Returns: A range object.

Param Description
line The source start line.
column The source start column.
endLine The source end line.
endColumn The source end column.

readSource(filePath) ⇒

Reads a source file, optionally caching it if it's already been read.

Kind: global function
Returns: The file contents.

Param Description
filePath The path to the source file.

getSourceForRange(source, range) ⇒

Extracts a source fragment from a file's contents based on the provided Range.

Kind: global function
Returns: The source fragment.

Param Description
source The file contents.
range A Range object representing the range to extract from the file contents.