Difference between revisions of "DPS909 & OSD600 Winter 2017 - Lab 2"
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For our first contribution to an open source project, we're going to go looking for ways we can help existing node.js based projects do a better job with their <code>package.json</code> files. This could involve a number of things: | For our first contribution to an open source project, we're going to go looking for ways we can help existing node.js based projects do a better job with their <code>package.json</code> files. This could involve a number of things: | ||
* correcting errors generated by http://package-json-validator.com/ for a <code>package.json</code> file | * correcting errors generated by http://package-json-validator.com/ for a <code>package.json</code> file | ||
| − | * adding missing optional fields to a <code>package.json</code> file | + | * adding missing optional fields to a <code>package.json</code> file, for example: <code>keywords</code> |
| − | Before we can fix any issues with existing <code>package.json</code> files, we have to find some! Our first task is to locate 1 module with an issue per student: | + | Before we can fix any issues with existing <code>package.json</code> files, we have to find some! Our first task is to locate 1 module with an issue per student. '''Please do not fix a bug until we have found a bug for everyone'''. |
| + | |||
| + | Here are some queries to get you started. Also look at the '''Dependencies''' and '''Dependents''' lists for any module you examine on npmjs. When you find a module that is missing <code>keywords</code> or has some other issue, add it below, making sure to copy the style I have begun on row 1. Also, be careful not to add duplicates: | ||
| + | |||
| + | * [https://www.npmjs.com/browse/star most starred packages on npmjs] | ||
| + | * [https://www.npmjs.com/browse/depended most depended-upon packages on npmjs] | ||
| + | * [https://www.google.ca/search?hl=en&as_q=&as_epq=inurl%3Apackage+json&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=github.com&as_occt=any&safe=images&as_filetype=pdf&as_rights=#hl=en&as_qdr=all&q=%22inurl:package.json%22+site:github.com+filetype:json Google query of package.json files on github.com] | ||
| + | |||
| + | To get you started, I've already found and fixed one, and also listed a couple of others I noticed in 5 minutes of searching on npmjs and Github. | ||
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| [https://github.com/humphd humphd] | | [https://github.com/humphd humphd] | ||
| https://github.com/request/request/pull/2514 | | https://github.com/request/request/pull/2514 | ||
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| [https://www.npmjs.com/package/dat-next dat-next] | | [https://www.npmjs.com/package/dat-next dat-next] | ||
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Revision as of 14:46, 18 January 2017
Contents
Contributing to an Open Source Project on Github
In this lab you will contribute a fix to an open source project on Github. Successfully completing this lab will require you to have first worked through, and understood, this week's git walkthroughs. If you have not already done so, please setup git and Github as described in the following:
1. Install node.js
We will be contributing to projects that use node.js, its package manager npm, and the npmjs module registry. In order to complete this lab, you will need to install node.js, which you can download here.
2. Understanding package.json
Node uses a special file named package.json to specify metadata about a module. You can read a complete description of package.json at https://docs.npmjs.com/files/package.json.
A package.json file has to be valid JSON, and must include a few fields. However, many of the fields are optional. Let's look at some examples from popular node.js open source projects:
- https://github.com/foreverjs/forever/blob/master/package.json
- https://github.com/expressjs/express/blob/master/package.json
- https://github.com/request/request/blob/master/package.json
- https://github.com/tj/commander.js/blob/master/package.json
These package.json files have common elements, such as:
- a name
- a description
- a version
- a license
There are also some optional fields you can include, for example:
- a list of keywords
- a homepage URL
- repository info
- bugs info
The metadata in package.json is used by the command-line tool npm as well as by the online registry https://www.npmjs.com/. Providing good data for these tools makes it easier for developers to find and use node modules.
3. Contributing fixes to package.json files
For our first contribution to an open source project, we're going to go looking for ways we can help existing node.js based projects do a better job with their package.json files. This could involve a number of things:
- correcting errors generated by http://package-json-validator.com/ for a
package.jsonfile - adding missing optional fields to a
package.jsonfile, for example:keywords
Before we can fix any issues with existing package.json files, we have to find some! Our first task is to locate 1 module with an issue per student. Please do not fix a bug until we have found a bug for everyone.
Here are some queries to get you started. Also look at the Dependencies and Dependents lists for any module you examine on npmjs. When you find a module that is missing keywords or has some other issue, add it below, making sure to copy the style I have begun on row 1. Also, be careful not to add duplicates:
- most starred packages on npmjs
- most depended-upon packages on npmjs
- Google query of package.json files on github.com
To get you started, I've already found and fixed one, and also listed a couple of others I noticed in 5 minutes of searching on npmjs and Github.
| # | NPMJS Module | Assigned Student | Pull Request URL | Blog Post URL |
|---|---|---|---|---|
| 1 | request | humphd | https://github.com/request/request/pull/2514 | |
| 2 | gulp-util | |||
| 3 | dat-next | |||
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Submission
You will have completed your lab when you have done the following:
- Create a Pull Request to a project fixing some problem or omission in their
package.jsonfile - Write a blog post about the process you took to complete this Pull Request, and about what happened next. Was it accepted? How long did it take? What did they say?
- Write about your feelings contributing to your first open source project. What went well? What was hard? What surprised you?
You should complete Lab 2 before the start of week 3.
