diff options
Diffstat (limited to 'node_modules/sequencify/index.js')
| -rw-r--r-- | node_modules/sequencify/index.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/node_modules/sequencify/index.js b/node_modules/sequencify/index.js new file mode 100644 index 000000000..b05f8bf32 --- /dev/null +++ b/node_modules/sequencify/index.js @@ -0,0 +1,46 @@ +/*jshint node:true */
+
+"use strict";
+
+var sequence = function (tasks, names, results, nest) {
+ var i, name, node, e, j;
+ nest = nest || [];
+ for (i = 0; i < names.length; i++) {
+ name = names[i];
+ // de-dup results
+ if (results.indexOf(name) === -1) {
+ node = tasks[name];
+ if (!node) {
+ e = new Error('task "'+name+'" is not defined');
+ e.missingTask = name;
+ e.taskList = [];
+ for (j in tasks) {
+ if (tasks.hasOwnProperty(j)) {
+ e.taskList.push(tasks[j].name);
+ }
+ }
+ throw e;
+ }
+ if (nest.indexOf(name) > -1) {
+ nest.push(name);
+ e = new Error('Recursive dependencies detected: '+nest.join(' -> '));
+ e.recursiveTasks = nest;
+ e.taskList = [];
+ for (j in tasks) {
+ if (tasks.hasOwnProperty(j)) {
+ e.taskList.push(tasks[j].name);
+ }
+ }
+ throw e;
+ }
+ if (node.dep.length) {
+ nest.push(name);
+ sequence(tasks, node.dep, results, nest); // recurse
+ nest.pop(name);
+ }
+ results.push(name);
+ }
+ }
+};
+
+module.exports = sequence;
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