Change license to AGPL
This commit:
- Updates the `LICENSE` file
- Start every file with something like:
// Copyright YEAR_FIRST_PUBLISHED Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
---
First, I removed existing license headers with this Ruby 3.1.2 script:
require 'set'
EXTENSIONS_TO_CHECK = Set['.h', '.hpp', '.cpp', '.m', '.mm', '.pch', '.swift']
same = 0
different = 0
all_files = `git ls-files`.lines.map { |line| line.strip }
all_files.each do |relative_path|
if relative_path == 'Pods'
next
end
unless EXTENSIONS_TO_CHECK.include? File.extname(relative_path)
next
end
path = File.expand_path(relative_path)
contents = File.read(path)
new_contents = contents.sub(/\/\/\n\/\/ Copyright .*\n\/\/\n\n/, '')
if contents == new_contents
same += 1
else
different += 1
end
File.write(path, new_contents)
end
puts "updated #{different} file(s), left #{same} untouched"
I'm sure this script could be improved, but it worked well enough.
Then, I created `Scripts/lint/lint-license-headers` and ran it to auto-
fix a lot of files. This changed the mode of some files, but I think
that's actually desirable. For example,
`SignalServiceKit/src/Util/AppContext.m` previously had a mode of
`0755/-rwxr-xr-x`, and it's now `0644/-rw-r--r--`.
Then I fixed some stragglers and updated the precommit script.
See [a similar change in the Desktop app][0].
[0]: 8bfaf598af
Not only should we not build avatars, but even loading the image data
costs us our limited memory space, especially when it's a system
contact avatar whose size we have no control over. Instead, record the
cache key for that avatar in the database.
(Unfortunately, we can't jump to the cache like this in the main app,
because then we'd have no way to check if an avatar has *changed*,
particularly for system contacts.)
Our AvatarBuilder caches were cleared in their entirety any time a
profile changes. If a profile update raced with a avatar fetch in
ConversationAvatarView, they'd blink briefly while the cached items were
removed.
This change ensures that we're only clearing out avatars that are
associated with an updated profile.
- Clear out avatar cache on local profile changes too
- ConversationAvatarView properly handles local profile updates
- Fix some tiny UI bugs in group calls
