* Repository avatars
- first variant of code from old work for gogs
- add migration 87
- add new option in app.ini
- add en-US locale string
- add new class in repository.less
* Add changed index.css, remove unused template name
* Update en-us doc about configuration options
* Add comments to new functions, add new option to docker app.ini
* Add comment for lint
* Remove variable, not needed
* Fix formatting
* Update swagger api template
* Check if avatar exists
* Fix avatar link/path checks
* Typo
* TEXT column can't have a default value
* Fixes:
- remove old avatar file on upload
- use ID in name of avatar file - users may upload same files
- add simple tests
* Fix fmt check
* Generate PNG instead of "static" GIF
* More informative comment
* Fix error message
* Update avatar upload checks:
- add file size check
- add new option
- update config docs
- add new string to en-us locale
* Fixes:
- use FileHEader field for check file size
- add new test - upload big image
* Fix formatting
* Update comments
* Update log message
* Removed wrong style - not needed
* Use Sync2 to migrate
* Update repos list view
- bigger avatar
- fix html blocks alignment
* A little adjust avatar size
* Use small icons for explore/repo list
* Use new cool avatar preparation func by @lafriks
* Missing changes for new function
* Remove unused import, move imports
* Missed new option definition in app.ini
Add file size check in user/profile avatar upload
* Use smaller field length for Avatar
* Use session to update repo DB data, update DeleteAvatar - use session too
* Fix err variable definition
* As suggested @lafriks - return as soon as possible, code readability
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