publish source translations to s3

refs FOO-2371
flag = none

test plan: jenkins does what the title says (on post-merge)

Change-Id: Id17a194c1c96ade4d21cea0a6ed97205a8eb2754
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/275751
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: August Thornton <august@instructure.com>
QA-Review: Ahmad Amireh <ahmad@instructure.com>
Product-Review: Ahmad Amireh <ahmad@instructure.com>

Jenkinsfile

@@ -479,6 +479,10 @@ pipeline {
                     extendedStage(LINTERS_BUILD_IMAGE_STAGE)
                       .queue(stages, buildDockerImageStage.&lintersImage)
 
+                    extendedStage('Run i18n:generate')
+                      .required(configuration.isChangeMerged())
+                      .queue(stages, buildDockerImageStage.&i18nGenerate)
+
                     parallel(stages)
                   }
                 }

build/new-jenkins/library/vars/buildDockerImageStage.groovy

@@ -193,3 +193,41 @@ def patchsetImage() {
     """, label: 'upload cache images')
   }
 }
+
+def i18nGenerate() {
+  def dest = 's3://instructure-translations/sources/canvas-lms/en/en.yml'
+  def roleARN = 'arn:aws:iam::307761260553:role/translations-jenkins'
+
+  sh(
+    label: 'generate the source translations file (en.yml)',
+    script: """
+      docker run --name=transifreq \
+        -e RAILS_LOAD_ALL_LOCALES=1 \
+        -e COMPILE_ASSETS_CSS=0 \
+        -e COMPILE_ASSETS_STYLEGUIDE=0 \
+        -e COMPILE_ASSETS_BUILD_JS=0 \
+        $PATCHSET_TAG \
+          bundle exec rake canvas:compile_assets i18n:generate
+    """
+  )
+
+  sh(
+    label: 'stage the source translations file for uploading to s3',
+    script: ' \
+      docker cp \
+        transifreq:/usr/src/app/config/locales/generated/en.yml \
+        transifreq-en.yml \
+    '
+  )
+
+  sh(
+    label: 'upload the source translations file to s3',
+    script: """
+      aws configure set profile.transifreq.credential_source Ec2InstanceMetadata &&
+      aws configure set profile.transifreq.role_arn $roleARN &&
+      aws s3 cp --profile transifreq --acl bucket-owner-full-control \
+        ./transifreq-en.yml \
+        $dest
+    """
+  )
+}

lib/tasks/canvas.rake

@@ -53,7 +53,7 @@ unless $canvas_tasks_loaded
 
         task 'i18n:generate_js' => [
           ('js:yarn_install' if npm_install)
-        ].compact if build_i18n && build_js
+        ].compact if build_i18n
 
         task 'js:webpack_development' => [
           'js:gulp_rev',