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CHANGELOG.md

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#CHANGE LOG

##Version 0.9

  • DSL Improvements
    • Simplified Value Syntax - The syntax of input and task argument default values, output values and result values has changed. We now distinguish between specifying literal values and expressions. This change alleviates the need for two sets of quotes surrounding literal strings.
      • Literal Values - Literals are denoted now as they are in standard YAML. For example, numbers are interpreted as numerical values and strings may be written unquoted, single quoted or double quoted.
      • Expressions - Expressions are preceded by a dollar sign and enclosed in curly brackets (e.g. expression_1: ${4 + 7}, expression_2: ${some_input}, expression_3: ${get('input1', 'default_input')}).
    • Task Arguments - Task arguments no longer support properties, except for an optional default value.
    • Get Function - The new get function (get("key", "default_value")) returns the value associated with key if the key is defined and its value is not None. If the key is undefined or its value is None the function returns the default_value. This function allows for simplifying some complex Python expressions.
    • Qualified Names - An operation or flow may now be referenced from a task by using the fully qualified name (e.g. do: path.to.operation.op_name) or a continuation of the path after an alias (e.g. do: alias.cont.path.flow_name).
    • Keyword Change - self replaced the former fromInputs keyword for referring to an input parameter as opposed to another variable with the same name in a narrower scope. Can be used in the value of an output, publish or result expression.
  • CLI Enhancements
    • Debug Mode - Print each task’s published variables to the screen, use the --d flag.
    • Log file - The execution log file is now saved under cslang/logs/execution.log.
    • Events Logging - Events logging is now more comprehensive.
  • Content Additions - Content has been added in the following areas:
    • OpenShift
    • Git
    • OpenStack
    • Stackato
    • HP Cloud
    • Chef
    • Google Container Engine (added in beta mode)
    • Amazon AWS
    • PowerShell
    • Base
      • Math
      • JSON
      • Remote file transfer

##Version 0.8

  • General - project renamed to CloudSlang
  • Tools
    • Build Tool - The verifier has been replaced by the build tool, which in addition to checking syntactic validity of a project's files runs the projects associated tests.
      • Tests - Syntax for writing content tests.
  • DSL Additions
    • Async Loops - A task can contain a loop which performs an operation for each value in a list in parallel.
  • DSL Improvements
    • Imports - Flows no longer need to explicitly import files in the same namespace.
  • CLI Enhancements
    • Default Classpath - Files in the content folder are automatically placed in the classpath.
    • Improved Error Messages - Many error messages are more user-friendly.
    • Quiet Mode - Run flows without printing the task names to the screen.
  • Content Additions - Content has been added in the following areas:
    • Docker Swarm
    • Docker Containers
    • Git
    • CoreOS
    • Jenkins
    • Base
      • Linux
      • Zip
      • Ping
  • Content Tests - Tests added for most of the current content.
  • Documentation
    • In depth tutorial which teaches many language features

##Version 0.7

  • Tools
    • Verifier - Verifies CloudSlang files are syntactically correct.
  • DSL Additions
    • Loops - A task can contain a for loop to iteratively call an operation or subflow
    • System Properties - Inputs can declare a system_property property to receive values from a system properties file.
  • DSL Improvements
    • Outputs - Support all serializable types, not just strings.
    • Python - Support 3rd party Python libraries.
  • DSL Syntax changes
    • Operations - Aligned to flow structure with one operation per file and name property
    • Tasks - Changed from maps to list of tasks.
    • Overridable - Former override input property changed to overridable with opposite meaning.
  • CLI Enhancements
    • Error messages - Error messages are more clear with helpful guidance on how to fix common errors
    • Inputs from file - Inputs to CLI can be read from a file instead of, or in addition to, being entered manually.
  • Content Additions - Content has been added in the following areas:
    • CloudSlang
      • Base
      • Utils
      • cAdvisor
      • REST
      • Jenkins
      • Docker
    • Java @Actions
      • JSON
  • Organization
    • CloudSlang content moved to its own repository.
  • Documentation
    • Restructured and updated DSL Reference.
    • Added developer content including API references and architecture explanations.