Update checker

[ETLegacyTeam]

Author: @JanSimek (Radegast)
Date: 2013-01-08
Redmine Issue: 147, https://dev.etlegacy.com/issues/147

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Check for updates on start up and show a pop up box (client) or print a message in the console (server) if an update is available.

@cl_autoupdate@ -> @com_autoupdate@
...

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Related commit(s):
ce47a49 - client: cl_motd shouldn't depend on cl_autoupdate,..
4794724 - client: update notification is displayed in ingame..
982a1b0 - client: notify about update in connecting screen, ..
f7d9383 - generic: separated autoupdate variables from clien..

[ETLegacyTeam]

From: @adanski (Dragonji)
Date: 2012-12-09T13:28:14Z

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Isn't it called "autoupdate" because it should do an update w/o any interaction with user?

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2012-12-09T13:49:09Z

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Yea, it is not autoupdate. Let's call it just updater or semi-autoupdater :-). User will get a popup window saying "Do you want to update to a new version? Yes/No" before the game proceeds with updating.

[ETLegacyTeam]

From: @IR4T4 (IR4T4)
Date: 2012-12-09T13:55:50Z

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There is already an issue for this update thingy ... #32 - I don't think we need this one :)

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2012-12-09T14:05:25Z

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You probably meant #32. This is a sub issue.

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2012-12-29T18:24:27Z

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Applied in changeset commit:ce47a49a04f31ec8f0dd169996cdd62ed6b9ca8e.

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2012-12-29T18:31:02Z

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From now on pak3.pk3 is not optional anymore.

[ETLegacyTeam]

From: @IR4T4 (IR4T4)
Date: 2013-01-29T14:01:52Z

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{FIXME}
cl_autoupdate 1 works only when the menu from legacy mod is loaded.

Passing params into the game like +connect xyz or +map oasis don't initiate the update question.

When people use tools (HLSW & Co) for direct connect they won't be notified about updates.

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Another topic to discuss: We should think about a cvar sv_autoupdate as well. At least server admins should be notified too.

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2013-01-29T22:40:42Z

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Ok, server will check for updates on start up and we will rename @cl_autoupdate@ to @com_autoupdate@.

EDIT: and also all autoupdate functions should be moved into a separate file

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2013-02-15T11:39:41Z

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{TODO} Add server side update check

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2013-10-05T15:54:28Z

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We need to check if destination path is writeable (user has the required permissions) before enabling auto-update feature.

[ETLegacyTeam]

From: @JanSimek (Radegast)
Date: 2013-12-08T01:06:33Z

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Auto-update server is now able to compare client files to the hosted files.