How to use

// Copy this file only in "pre-production" mode
{
"from": "https://raw.githubusercontent.com/jashkenas/underscore/master/underscore-min.js.map",
"to": {
"default": {
"skip": true
},
"pre-production": "scripts/underscore.js.map"
}
},

// Copy this file in "pre-production" and "production" mode only
{
"from": {
"default": {
"skip": true
},
"pre-production": "node_modules/native-promise-only/npo.js",
"production": "node_modules/native-promise-only/npo.js"
},
"to": "scripts/native-promise-only.js"
},

// Copy this file in all modes except "production" mode
{
"from": "https://raw.githubusercontent.com/webextensions/console-panel/master/src/console-panel.js",
"to": {
"default": "scripts/console-panel/console-panel.js",
"production": {
"skip": true
}
}
},

// Copy the contents of the directory "src/app/images" to "public/assets"
{
"from": "src/app/images",
"to": "public/assets"
},

// Copy the file at the mentioned path into the target directory
{
"from": "src/app/images/favicon.ico",
"to": "public/"
},

// Copy the files matching the "glob" pattern (matching files, along with the their folder structure go into the "to" directory)
{
"from": "assets/*/.jpg",
"to": "public/images/"
},

// to (required parameter)
// Data type: string or object
// Summary: This instruction set would write a file to this path on the disk
// Note: When it is set as a string, it would be used for all modes. When it is set as an object, it can be
// configured differently for different modes
"to": "example-index.html"
},

// Using "from" as an array of glob expressions
{
// from (required parameter)
// Data type: array
// Note: When it is set as an array, it describes an array of glob patterns and settings
// Any strings in the array are used as glob patterns.
// Any objects are used as fast-glob options: (See https://www.npmjs.com/package/fast-glob)
"from": [
// The first entry here is also used to figure out the "non-magic parent path" from a glob string
// Copy all files from the public folder
"public/*/",
// A "!" at the beginning of the pattern will ignore any files matching that pattern
// This ignores all files in the public/tmp folder
"!public/tmp/*/",
// Any objects in the array will be collected together to pass to fast-glob as options
// This will copy any files starting with a .*
// This will not copy symlinked folders
{ dot: true, followSymlinkedDirectories: false }
],
// to (required parameter)
// Data type: string
// Summary: This instruction set would write all the files found with the glob patterns and settings
// to this folder.
// Note: When using glob patterns for the "from" value the target "to" path needs to be a folder
"to": "build/"
},

// Using "from" and "to", both, as objects (and use string based mode entries)
{
"from": {
// The "from" section should contain details about at least one mode

// "default" mode (optional parameter, recommended to have)
// Summary: "default" mode would be used when the command is executed without any mode or when the command
// is executed in a mode which is not described for the given entry
// Data type: string or object
"default": "node_modules/example/index.js",

// mode (optional parameter if any other mode exists)
"development": "node_modules/example/dev.js",

// mode (optional parameter if any other mode exists)
"production": "node_modules/example/production.js"

// More mode entries
},
"to": {
"default": "example.js"
}
},

// Using "from" and "to", both, as objects (and use object based mode entries)
{
"from": {
"default": {
// src (required parameter)
// Summary: This contains the path of a file which is either on disk or accessible via "http"/"https" URL
// Data type: string
"src": "http://example.com/index-1.0.0.js.map",

// latest (optional parameter)
// Summary: This contains the path of a file which is either on disk or accessible via "http"/"https" URL
// Data type: string
// Note: When this tools is executed with "--outdated" parameter, then the file from "latest" would be
// compared with the file from "src", and if there are any differences, it would be notified that
// an update is available
"latest": "http://example.com/index.js.map"
}
},
"to": {
"default": {
// dest (required parameter, when not using "skip" parameter set as true)
// Summary: This instruction set would write a file to this path on the disk
// Data type: string
"dest": "scripts/index.js.map",

// removeSourceMappingURL (optional parameter)
// Summary: When set to true, any contents after "//# sourceMappingURL=" would be removed before
// the copy operation
// Data type: boolean
// Default value: false
"removeSourceMappingURL": false,

// minifyJs (optional parameter)
// Summary: When set to true, this JavaScript file would be minified before the copy operation
// (via https://www.npmjs.com/package/terser)
// Data type: boolean
// Default value: undefined
"minifyJs": false
},
"production": {
// skip (required parameter, when not using "dest" parameter)
// Summary: If you wish to skip a file in some particular mode, add "skip" as true, otherwise a warning
// would be raised when you run this tool for that particular mode
// Data type: boolean
// Default value: false
"skip": true
}
}
}

// Add more object entries with "from" and "to" details, and you can use any of the supported data types to
// represent the values of "from", "to" and their "default" or modes
],

// copyFilesSettings (optional parameter)
// Summary: Settings for the copy files operation
// Data type: object
"copyFilesSettings": {
// whenFileExists (optional parameter)
// Summary: When the file at "to" path already exists, what action should be taken
// Data type: string
// Supported values: "do-nothing" / "overwrite" / "notify-about-available-change"
// Default value: "do-nothing"
"whenFileExists": "notify-about-available-change",

// addReferenceToSourceOfOrigin (optional parameter)
// Summary: When set to true, the copy operation would create a file ".source.txt"
// which would contain a link to the "from" path
// Data type: boolean
// Default value: false
"addReferenceToSourceOfOrigin": false

// ignoreDotFilesAndFolders (optional parameter)
// Summary: When set to true, globbing will ignore files and folders starting with a "." dot.
// Data type: boolean
// Default value: false
"ignoreDotFilesAndFolders": true

// removeSourceMappingURL (optional parameter)
// Summary: When set to true, any contents after "//# sourceMappingURL=" would be removed before
// the copy operation
// Data type: boolean
// Default value: false
"removeSourceMappingURL": false,

// minifyJs (optional parameter)
// Summary: When set to true, the JavaScript files would be uglified before the copy operation
// (via https://www.npmjs.com/package/terser)
// Data type: boolean
// Default value: false
"minifyJs": true,