"Thanks for the feedback." Thanks for this very useful library :) "Hmm, that is tricky. If you inspect ZnLogEvent announcer during the execution you will notice that a redirect is involved. Your original request for https://github.com/kilon/ChronosManager/archive/master.zip gets redirected to a request for https://codeload.github.com/kilon/ChronosManager/zip/master for which the name is effectively 'master' without the extension. Maybe the original name should be used, I have to think a bit about that. It seems that curl does it like that." naughty Github but I am curious is it not normal for a dowload link to redirect to something else anyway ? I have seen such redirections frequently with browser. "ZnClient new url: ' https://github.com/kilon/ChronosManager/archive/master.zip'; setIfModifiedSince: (Date year: 2015 month: 12 day: 1); downloadTo: FileLocator imageDirectory / 'master.zip'; yourself." yes that though crossed my mind too. How I tell ZnClient to overwrite an existing file , because by default it complains and pops up a dialog. "Yeah, not much you can do about that." Well I could have gone with the Github api in the first place , as Skip notedm but I am clueless when it comes to web dev. " The API supports conditional requests (If-Modified-Since and If-None-Match), so perhaps you should use the API endpoints: https://developer.github.com/v3/#conditional-requests" because I am clueless with web dev can you help me understand how to do this with ZnClient ? Is this what people are referring to as a REST API ? " I am planning to implement caching and conditional requests in my API bindings: https://github.com/Balletie/GitHub " your tool is great but i am trying to create as few dependencies for my project as possible or else it will take forever to load in a pharo image but I am definitely interesting into learning from your code . Thanks :)

Hi,

On Dec 4, 2015, at 11:56 AM, Dimitris Chloupis <kilon.alios@gmail.com> wrote:

because I am clueless with web dev can you help me understand how to do this with ZnClient ?

I tried some things, such as this snippet: ZnClient new setIfModifiedSince: DateAndTime now; contentReader: [ :entity | ZipArchive new readFrom: entity readStream ]; get: 'https://api.github.com/repos/kilon/ChronosManager/zipball/master <https://api.github.com/repos/kilon/ChronosManager/zipball/master>' But the response does not have a Last-Modified date. So what you probably want is the date of the latest commit to master (or whatever branch). Considering you do want to minimize dependencies and therefore not use the API bindings, the following could be done: client := ZnClient new. " Get latest commit list, we only care about the response in this case " client setIfModifiedSince: (Date year: 2015 month: 12 day: 1); get: 'https://api.github.com/repos/kilon/ChronosManager/commits?sha=master <https://api.github.com/repos/kilon/ChronosManager/commits?sha=master>'. client response isNotModified ifTrue: [ nil ] ifFalse: [ client contentReader: [ :entity | ZipArchive new readFrom: entity readStream ]; get: 'https://api.github.com/repos/kilon/ChronosManager/zipball/master <https://api.github.com/repos/kilon/ChronosManager/zipball/master>'] So you need in total three GET requests, since the second request responds with a redirect. The first request does not count to the API rate limit if it returns a 304 Not Modified.

ok with your help I found the code to do this with every new release. I take the info from my README list := OrderedCollection new. client := ZnClient new. readme := client get: ' https://raw.githubusercontent.com/kilon/ChronosManager/master/README.md'. readme regex: 'v.\..' matchesDo: [ :each | list add: each ]. list inspect. list at:1 gives the top / latest version. So all will have to do is just add the new version info in the README which I would have done anyway. Its not using the GITHUB API but it get the job done :) Actually now that I am thinking about it the readme can contain all sort of information that my code can use and all in user readable format :) Beats Json and XML/Html syntax :) On Fri, Dec 4, 2015 at 11:04 PM Dimitris Chloupis <kilon.alios@gmail.com> wrote:

Thank you both I will give both a try and be back with more questions :)

On Fri, Dec 4, 2015 at 6:57 PM Skip Lentz <skip.lentz@inria.fr> wrote:

...

Hi,

On Dec 4, 2015, at 11:56 AM, Dimitris Chloupis <kilon.alios@gmail.com> wrote:

because I am clueless with web dev can you help me understand how to do this with ZnClient ?

I tried some things, such as this snippet:

ZnClient new setIfModifiedSince: DateAndTime now; contentReader: [ :entity | ZipArchive new readFrom: entity readStream ]; get: 'https://api.github.com/repos/kilon/ChronosManager/zipball/master'

But the response does not have a Last-Modified date.

So what you probably want is the date of the latest commit to master (or whatever branch). Considering you do want to minimize dependencies and therefore not use the API bindings, the following could be done:

client := ZnClient new. " Get latest commit list, we only care about the response in this case " client setIfModifiedSince: (Date year: 2015 month: 12 day: 1); get: ' https://api.github.com/repos/kilon/ChronosManager/commits?sha=master'. client response isNotModified ifTrue: [ nil ] ifFalse: [ client contentReader: [ :entity | ZipArchive new readFrom: entity readStream ]; get: 'https://api.github.com/repos/kilon/ChronosManager/zipball/master']

So you need in total three GET requests, since the second request responds with a redirect. The first request does not count to the API rate limit if it returns a 304 Not Modified.