addons-frontend/bin/run-l10n-extraction

#!/usr/bin/env bash

# Exit immediately when a command fails.
set -e
# Make sure exit code are respected in a pipeline.
set -o pipefail
# Treat unset variables as an error an exit immediately.
set -u

INITIAL_GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
GIT_CHANGES=$(git status --porcelain)
DIFF_WITH_ONE_LINE_CHANGE="1 file changed, 1 insertion(+), 1 deletion(-)"
GIT_REMOTE="${GIT_REMOTE:-git@github.com:mozilla/addons-frontend.git}"
LOG_FILE="l10n-extraction.log"

info() {
  local message="$1"

  echo ""
  echo "INFO: $message"
  echo ""
}

error() {
  local message="$1"

  echo "ERROR: $message"
  exit 1
}

run_l10n_extraction() {
  local app="$1"
  local branch="$app-locales"

  info "Starting l10n extraction for $app"

  # Detect local (uncommitted) changes.
  if [[ ! -z "$GIT_CHANGES" ]]; then
    error "You have local changes, therefore this script cannot continue."
  fi

  # Switch to the `master` branch if we are not on it already.
  if [[ "$INITIAL_GIT_BRANCH" != "master" ]]; then
    git checkout master
  fi

  # Make sure the 'master' branch is up-to-date.
  git pull "$GIT_REMOTE" master

  # Update dependencies
  yarn >> "$LOG_FILE" 2>&1

  # Ensure the branch to extract the locales is clean.
  if [[ $(git branch --list "$branch") ]]; then
    info "Deleting branch '$branch' because it already exists"
    git branch -D "$branch"
  fi

  info "Creating and switching to branch '$branch'"
  git checkout -b "$branch"

  info "Extracting locales (this can take several minutes)"
  NODE_APP_INSTANCE="$app" bin/extract-locales >> "$LOG_FILE" 2>&1

  local git_diff_stat
  git_diff_stat=$(git diff --shortstat)

  if [[ -z "$git_diff_stat" ]] || [[ "$git_diff_stat" == *"$DIFF_WITH_ONE_LINE_CHANGE"* ]]; then
    info "No locale changes for $app, nothing to update, ending process for $app"
    git checkout -- .
    git checkout "$INITIAL_GIT_BRANCH"
    git branch -d "$branch"
    return
  fi

  git commit -a -m "Extract $app locales"

  info "Merging locales"
  NODE_APP_INSTANCE="$app" bin/merge-locales >> "$LOG_FILE" 2>&1

  git commit -a -m "Merge $app locales"

  # We use force-push in case the branch already exists.
  git push -f "$GIT_REMOTE" "$branch"

  git checkout "$INITIAL_GIT_BRANCH"
  git branch -D "$branch"

  echo ""
  echo "----------------------------------------------------------------------"
  echo ""
  echo "     You can now open the link below to submit your Pull Request:"
  echo "     https://github.com/mozilla/addons-frontend/pull/new/$branch"
  echo ""
  echo "----------------------------------------------------------------------"
}

# Clear log file
echo "" > "$LOG_FILE"

run_l10n_extraction "amo"
run_l10n_extraction "disco"