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'use strict';
var archy = require('archy');
var log = require('gulplog');
var sortBy = require('array-sort');
var isObject = require('isobject');
var ansi = require('../ansi');
var copyTree = require('./copy-tree');
function logTasks(tree, opts, getTask) {
if (opts.sortTasks) {
tree.nodes = sortBy(tree.nodes, 'label');
}
var lineInfos = [];
var entryObserver = getLineInfoCollector(lineInfos);
var nodeFactory = getNodeFactory(getTask, entryObserver);
tree = copyTree(tree, opts, nodeFactory);
var spacer = getSpacerForLineIndents(tree, lineInfos);
var lines = getLinesContainingOnlyBranches(tree);
log.info(tree.label);
printTreeList(lines, spacer, lineInfos);
}
function getLineInfoCollector(lineInfos) {
return {
topTask: function(node) {
lineInfos.push({
name: node.label,
desc: node.desc,
type: 'top',
});
},
option: function(opt) {
lineInfos.push({
name: opt.label,
desc: opt.desc,
type: 'option',
});
},
childTask: function(node) {
lineInfos.push({
name: node.label,
type: 'child',
});
},
};
}
function getNodeFactory(getTask, entryObserver) {
return {
topNode: function(node) {
return {
label: node.label,
};
},
taskNode: function(node) {
/* istanbul ignore next */
var task = getTask(node.label) || {};
var newNode = {
label: node.label,
desc: typeof task.description === 'string' ? task.description : '',
opts: [],
};
entryObserver.topTask(newNode);
if (isObject(task.flags)) {
Object.keys(task.flags).sort().forEach(function(flag) {
if (flag.length === 0) {
return;
}
/* istanbul ignore next */
var opt = {
label: flag,
desc: typeof task.flags[flag] === 'string' ? task.flags[flag] : '',
};
entryObserver.option(opt);
newNode.opts.push(opt);
newNode.label += '\n' + opt.label; // The way of archy for options.
});
}
return newNode;
},
childNode: function(node) {
var newChild = {
label: node.label,
};
entryObserver.childTask(newChild);
newChild.label = ''; // Because don't use child tasks to calc indents.
return newChild;
},
};
}
function getSpacerForLineIndents(tree, lineInfos) {
var maxSize = 0;
var sizes = [];
archy(tree)
.split('\n')
.slice(1, -1)
.forEach(function(line, index) {
var info = lineInfos[index];
if (info.type === 'top' || info.type === 'option') {
maxSize = Math.max(maxSize, line.length);
sizes.push(line.length);
} else {
sizes.push(0);
}
});
maxSize += 3;
return function(index) {
return Array(maxSize - sizes[index]).join(' ');
};
}
function getLinesContainingOnlyBranches(tree) {
tree.nodes.forEach(function(node) {
node.label = '';
node.opts.forEach(function() {
node.label += '\n';
});
});
return archy(tree)
.split('\n')
.slice(1, -1);
}
function printTreeList(lines, spacer, lineInfos) {
lines.forEach(function(branch, index) {
var info = lineInfos[index];
var line = ansi.white(branch);
if (info.type === 'top') {
line += ansi.cyan(info.name);
if (info.desc.length > 0) {
line += spacer(index) + ansi.white(info.desc);
}
} else if (info.type === 'option') {
line += ansi.magenta(info.name);
if (info.desc.length > 0) {
line += spacer(index) + ansi.white('…' + info.desc);
}
} else { // If (info.type === 'child') {
line += ansi.white(info.name);
}
log.info(line);
});
}
module.exports = logTasks;