Implement automatic version self-check and update in a PHP script with github

Question

Now that the code for a small RSS-reading CMS that I've done is hosted on github, I'd like it to

check automatically if there is a newer version of itself's in the master branch
Allow the user to update said script, ie it would overwrite itself with the newer version

? Well I don't know where to start ! How do you (I) do that ? Is there a PHP function for that ? Is there a github API function for that ? Is it even possible ? I have this page, index.php, on a server A. And the same page, index.php, on the server B, only newer. What do I put in serverA/index.php to check for the version of serverB/index.php ? — yPhil
– yPhil, Commented Feb 15, 2012 at 13:12

Community · Accepted Answer · 2017-05-23 12:30:48Z

4

Here is what I came up with (thanks to cillosis's answer)

$commits = json_decode(file_get_contents("https://api.github.com/repos/user_name/repository_name/commits"));

$current_commit_minus1 = $commits[1]->sha;
$ref_commit = "57b75c0f8aefa5ce87c1270265cace18a2347594";

if (!strcmp($current_commit_minus1, $ref_commit))
    $moved = true;
  else
    $moved = false;

That way I don't have to maintain tags, just compare commits.

edited May 23, 2017 at 12:30

CommunityBot

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answered Sep 16, 2013 at 17:06

yPhil

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Community · Accepted Answer · 2012-11-11 22:38:01Z

2

It should be possible maintaining a current version number within the script, and then comparing it to the repository using the Repositories API.

You can get repo tags with CURL like this (replace :user and :repo with your stuff):

curl http://github.com/api/v2/json/repos/show/:user/:repo/tags

You can show branches like this:

curl http://github.com/api/v2/json/repos/show/:user/:repo/branches

There is a lot of other info available in that API as well.

Once you get that, compare it to the current and procede with updating.

edited Nov 11, 2012 at 22:38

CommunityBot

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answered Feb 15, 2012 at 13:27

Jeremy Harris

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1 Comment

yPhil Over a year ago

The command that worked for me : curl https://api.github.com/repos/user_name/repository_name/tags

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