#! /bin/bash

# Copy Email Self-Defense translations locally from enc to enc-live.
# and update the language pickers.
# The two repos are assumed to have the same parent directory.
# The script is called from the root of enc-live:
#             copy-enc-to-live LANG

#    ***** Check that lang-picker-source is up to date. *****

set -e

lang=$1
pages='confirmation.html index.html infographic.html next_steps.html workshops.html'

test -n "$lang" || (echo "  !!! Please enter a language code as argument.";
 exit 1)

# The files we need are on the master branch of enc.
cd ../enc
git co master
# Get the ID of the last commit on this branch for future reference, and
# truncate it to 7 digits.
commit=$(git rev-parse HEAD | cut -b -7)

# Go back to enc-live.
cd ../enc-live
# Create the LANG directory if it doesn't exist.
mkdir -p $lang

# Take one page at a time.
for p in $pages; do
  echo $lang/$p
  # If it exists in enc,
  if [ -f ../enc/$lang/$p ]; then
    # copy it to enc-live.
    cp ../enc/$lang/$p $lang/
  # If not...
  else
    # say so,
    echo "  !!! $lang/$p doesn't exist"
    # restore enc-live to its original state,
    git reset --hard HEAD
    # and quit.
    exit 1
  fi
done

# Add and commit the changes.
git add $lang
# Refer to the enc commit ID in the enc-live commit message.
git commit -m "$lang: synchronize with enc $commit."

replace-lang-picker
git commit --amend