turtle-build 0.5.5

Ninja-compatible build system for high-level programming languages
Documentation 
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Feature: Dynamic dependency

  Scenario: Use a dyndep file
    Given a file named "build.ninja" with:
      """
      rule cp
        command = cp $in $out
      rule dd
        command = echo ok && echo ninja_dyndep_version = 1 >> $out && echo build foo: dyndep >> $out

      build foo: cp bar || foo.dd
        dyndep = foo.dd
      build foo.dd: dd

      """
    And a file named "bar" with ""
    When I successfully run `turtle`
    Then the stdout should contain exactly "ok"

  Scenario: Use a dyndep file with an addtional input
    Given a file named "build.ninja" with:
      """
      rule touch
        command = touch $out
      rule cp
        command = echo ok && cp $in $out
      rule dd
        command = echo ninja_dyndep_version = 1 >> $out && echo build foo: dyndep '|' bar >> $out

      build foo: touch || foo.dd
        dyndep = foo.dd
      build foo.dd: dd
      build bar: cp baz

      """
    And a file named "baz" with ""
    When I successfully run `turtle`
    Then the stdout should contain exactly "ok"

  Scenario: Rebuild a dependent of a dynamic input updated in the same run
    Given a file named "build.ninja" with:
      """
      rule cp
        command = cp $in $out
      rule cat
        command = cat bar > $out
      rule dd
        command = printf 'ninja_dyndep_version = 1\nbuild foo: dyndep | bar\n' > $out

      build foo: cat || foo.dd
        dyndep = foo.dd
      build foo.dd: dd
      build bar: cp baz

      """
    And a file named "baz" with "1"
    When I successfully run `turtle`
    And a file named "baz" with "2"
    And I successfully run `turtle`
    Then the file named "foo" should contain "2"

  Scenario: Use a dyndep file declared in a rule
    Given a file named "build.ninja" with:
      """
      rule touch
        command = touch $out
        dyndep = $out.dd
      rule cp
        command = echo ok && cp $in $out
      rule dd
        command = echo ninja_dyndep_version = 1 >> $out && echo build foo: dyndep '|' bar >> $out

      build foo: touch || foo.dd
      build foo.dd: dd
      build bar: cp baz

      """
    And a file named "baz" with ""
    When I successfully run `turtle foo`
    Then the stdout should contain exactly "ok"

  Scenario: Use a dyndep file naming an implicit output
    Given a file named "build.ninja" with:
      """
      rule touch
        command = touch $out
      rule cp
        command = echo ok && cp $in $out
      rule dd
        command = echo ninja_dyndep_version = 1 >> $out && echo build baz: dyndep '|' bar >> $out

      build foo | baz: touch || foo.dd
        dyndep = foo.dd
      build foo.dd: dd
      build bar: cp qux

      """
    And a file named "qux" with ""
    When I successfully run `turtle foo`
    Then the stdout should contain exactly "ok"

  Scenario: Fail to use a dyndep file naming an unknown output
    Given a file named "build.ninja" with:
      """
      rule touch
        command = touch $out
      rule dd
        command = echo ninja_dyndep_version = 1 >> $out && echo build baz: dyndep '|' bar >> $out

      build foo: touch || foo.dd
        dyndep = foo.dd
      build foo.dd: dd

      """
    When I run `turtle foo`
    Then the exit status should not be 0
    And the output should contain "baz"