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Source file src/cuelang.org/go/pkg/tool/pkg.go

Documentation: cuelang.org/go/pkg/tool

     1  // Code generated by cuelang.org/go/pkg/gen. DO NOT EDIT.
     2  
     3  // Package tool defines stateful operation types for cue commands.
     4  //
     5  // This package is only visible in cue files with a _tool.cue or _tool_test.cue
     6  // ending.
     7  //
     8  // CUE configuration files are not influenced by and do not influence anything
     9  // outside the configuration itself: they are hermetic. Tools solve
    10  // two problems: allow outside values such as environment variables,
    11  // file or web contents, random generators etc. to influence configuration,
    12  // and allow configuration to be actionable from within the tooling itself.
    13  // Separating these concerns makes it clear to user when outside influences are
    14  // in play and the tool definition can be strict about what is allowed.
    15  //
    16  // Tools are defined in files ending with _tool.cue. These files have a
    17  // top-level map, "command", which defines all the tools made available through
    18  // the cue command.
    19  //
    20  // The following definitions are for defining commands in tool files:
    21  //
    22  //	// A Command specifies a user-defined command.
    23  //	//
    24  //	// Descriptions are derived from the doc comment, if they are not provided
    25  //	// structurally, using the following format:
    26  //	//
    27  //	//    // short description on one line
    28  //	//    //
    29  //	//    // Usage: <name> usage (optional)
    30  //	//    //
    31  //	//    // long description covering the remainder of the doc comment.
    32  //	//
    33  //	Command: {
    34  //		// Tasks specifies the things to run to complete a command. Tasks are
    35  //		// typically underspecified and completed by the particular internal
    36  //		// handler that is running them. Tasks can be a single task, or a full
    37  //		// hierarchy of tasks.
    38  //		//
    39  //		// Tasks that depend on the output of other tasks are run after such tasks.
    40  //		// Use `$after` if a task needs to run after another task but does not
    41  //		// otherwise depend on its output.
    42  //		Tasks
    43  //
    44  //		// $usage summarizes how a command takes arguments.
    45  //		//
    46  //		// Example:
    47  //		//     mycmd [-n] names
    48  //		$usage?: string
    49  //
    50  //		// $short is short description of what the command does.
    51  //		$short?: string
    52  //
    53  //		// $long is a longer description that spans multiple lines and
    54  //		// likely contain examples of usage of the command.
    55  //		$long?: string
    56  //	}
    57  //
    58  //	// TODO:
    59  //	// - child commands?
    60  //
    61  //	// Tasks defines a hierarchy of tasks. A command completes if all tasks have
    62  //	// run to completion.
    63  //	Tasks: Task | {
    64  //		[name=Name]: Tasks
    65  //	}
    66  //
    67  //	// #Name defines a valid task or command name.
    68  //	Name: =~#"^\PL([-](\PL|\PN))*$"#
    69  //
    70  //	// A Task defines a step in the execution of a command.
    71  //	Task: {
    72  //		$type: "tool.Task" // legacy field 'kind' still supported for now.
    73  //
    74  //		// $id indicates the operation to run. It must be of the form
    75  //		// packagePath.Operation.
    76  //		$id: =~#"\."#
    77  //
    78  //		// $after can be used to specify a task is run after another one, when
    79  //		// it does not otherwise refer to an output of that task.
    80  //		$after?: Task | [...Task]
    81  //	}
    82  //
    83  //	// TODO: consider these options:
    84  //	//   $success: bool
    85  //	//   $runif: a.b.$success or $guard: a.b.$success
    86  //	// With this `$after: a.b` would just be a shorthand for `$guard: a.b.$success`.
    87  package tool
    88  

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