MM-19606- Rework Prepackaged Plugins (#13449)

* MM-19609 - Add new prepackage configuration settings (#13062)

* Add signatures to the prepackaged plugins (#13138)

* MM-19612 - Support querying local plugin marketplace when upst… (#13250)

* MM-19612 - Support querying local plugin marketplace when upstream unavailable or disabled

* Update translations file

* Fixed comment

* Updated to check EnableRemoteMarketplace setting and LocalOnly to get marketplace plugins

* Fixed unit tests

* Tests cleanup code

* Removed unused error message

* Updated tests

* MM-19614- Updated Marketplace Service error id (#13388)

* [MM-19610] Consume prepackaged plugins (#13005)

* consume prepackaged plugins into memory

* missing i18n

* remove spurious .gitignore changes

* return on failure to install prepackged plugins

* cleanup

* s/plugins/availablePlugins

* whitespace

* don't return extractDir when not needed

* s/plug/plugin

* error on icon, cleanup

* update armored version of testplugin signature

* honour AutomaticPrepackagedPlugins

* document getPrepackagedPlugin

* MM-19613 - Include prepackaged plugins in marketplace results (#13433)

* Added prepackaged plugins to marketplace results

* PR Feedback

* PR Feedback

* Update error where definition

* Removing unnecessary var declaration

* Updated comments

* MM-21263 - Use EnableRemoteMarketplace in marketplace install… (#13438)

* MM-21263 - Use EnableRemoteMarketplace in marketplace install endpoint

* Call updateConfig before calling NewServer in TestHelper

* Added translations

* PR feedback

* Translations

* Feedback

* s/helpers.go/download.go

* Converging env.PrepackagedPlugins

* Initial PR feedback

* Ordered imports properly

* Updated DownloadURL to return slice of bytes

* Fixed method typo

* Fixed logging

* Added read lock for prepackaged plugins list

* PR Feedback

* Added condition to only install prepackaged plugin if it was previously enabled

* Linting

* Updated to check plugin state in config

* Closing filereader

* Only add local label if remote marketplace is enabled

* Updated local tag description

* Fixed tests

Co-authored-by: Ali Farooq <ali.farooq0@pm.me>
Co-authored-by: Shota Gvinepadze <wineson@gmail.com>
Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>
Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

build/release.mk

@@ -67,6 +67,7 @@ endif
 	mkdir -p tmpprepackaged
 	@cd tmpprepackaged && for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		curl -O -L https://plugins-store.test.mattermost.com/release/$$plugin_package.tar.gz; \
+		curl -O -L https://plugins-store.test.mattermost.com/release/$$plugin_package.tar.gz.sig; \
 	done
 
 	@# ----- PLATFORM SPECIFIC -----
@@ -83,6 +84,7 @@ endif
 	@# Strip and prepackage plugins
 	@for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		cat tmpprepackaged/$$plugin_package.tar.gz | gunzip | tar --wildcards --delete "*windows*" --delete "*linux*" | gzip  > $(DIST_PATH)/prepackaged_plugins/$$plugin_package.tar.gz; \
+		cp tmpprepackaged/$$plugin_package.tar.gz.sig $(DIST_PATH)/prepackaged_plugins; \
 	done
 	@# Package
 	tar -C dist -czf $(DIST_PATH)-$(BUILD_TYPE_NAME)-osx-amd64.tar.gz mattermost
@@ -103,6 +105,7 @@ endif
 	@# Strip and prepackage plugins
 	@for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		cat tmpprepackaged/$$plugin_package.tar.gz | gunzip | tar --wildcards --delete "*darwin*" --delete "*linux*" | gzip  > $(DIST_PATH)/prepackaged_plugins/$$plugin_package.tar.gz; \
+		cp tmpprepackaged/$$plugin_package.tar.gz.sig $(DIST_PATH)/prepackaged_plugins; \
 	done
 	@# Package
 	cd $(DIST_ROOT) && zip -9 -r -q -l mattermost-$(BUILD_TYPE_NAME)-windows-amd64.zip mattermost && cd ..
@@ -123,6 +126,7 @@ endif
 	@# Strip and prepackage plugins
 	@for plugin_package in $(PLUGIN_PACKAGES) ; do \
 		cat tmpprepackaged/$$plugin_package.tar.gz | gunzip | tar --wildcards --delete "*windows*" --delete "*darwin*" | gzip  > $(DIST_PATH)/prepackaged_plugins/$$plugin_package.tar.gz; \
+		cp tmpprepackaged/$$plugin_package.tar.gz.sig $(DIST_PATH)/prepackaged_plugins; \
 	done
 	@# Package
 	tar -C dist -czf $(DIST_PATH)-$(BUILD_TYPE_NAME)-linux-amd64.tar.gz mattermost