L10n:Migration

Preparations

 mkdir releases && cd releases  
 mkdir -p l10n/mozilla-aurora
 mkdir -p l10n/mozilla-beta
 
 export LOCS=`wget -qO- 'https://hg.mozilla.org/releases/l10n/mozilla-beta/?style=raw' | grep -v x-testing | awk -F/ '{print $5;}'`

Put this script (upclones.sh) in your $PATH:

#!/bin/bash
 
HERE=`pwd`

for channel in aurora beta; do
    for loc in $LOCS; do  

        CLONE="$HERE/mozilla-$channel/$loc"

        if [[ -d $CLONE/.hg ]]; then
            hg -R $CLONE pull -u -r default
        else
            hg clone -r default https://hg.mozilla.org/releases/l10n/mozilla-$channel/$loc $CLONE
        fi
    done
done

Then, enable Axel's merge helper extension to hg:

 hg clone https://hg.mozilla.org/users/axel_mozilla.com/branch-l10n/ ~/src/branch-l10n
 

Edit your ~/.hgrc accordingly:

 [extensions]
 ...
 merge-l10n = ~/src/branch-l10n/merge_l10n.py

Try it out with:

 hg help no-op-merge

There's also a test-suite in branch-l10n, which you can run to verify your version of mercurial works.

   cd ~/src/branch-l10n/
   python test.py

If the extension works, you can proceed with the merge

Merge

Have LOCS set. Also, make sure ssh works for hg, we're pulling over https to speed things up.

The actual merge wants to happen closely to/after the en-US merge and its push to beta.

First, visit the l10n dashboard, and migrate the database. Adjust the time to just before the push to beta of en-US. Or either, if aurora at one point was pushed first. The page is https://l10n.mozilla.org/shipping/release/. Also, on that page, switch off `fallback` for Lightning.

cd releases/l10n

# This function can be used to ignore locales working on central, e.g.
# isCentralLocale $loc
# if [ $? -eq 1 ] ; then
#   # Ignore locales working on mozilla-central
#   continue
# else
#   # Do something for other locales
# fi

function isCentralLocale () {
  central_locales=(eo es-ES fr it pl ru)
  for locale in ${central_locales[@]}; do
    if [[ $locale == $1 ]]; then
      return 1
    fi
  done

  return 0
}

# Path to migration script, without trailing slash (removed if present)
# Use $HOME instead of ~ if needed
# migration_path="$HOME/mozilla-central/python/devtools/migrate-l10n/migrate"
# migration_path=${migration_path%/}
  
for loc in $LOCS; do
  # Default migration actions
  hg -R mozilla-beta/$loc pull -u -r default
  hg -R mozilla-aurora/$loc pull -u -r default
  hg -R mozilla-beta/$loc no-op-merge -m"Migrating aurora to beta for Firefox 53" $PWD/mozilla-aurora/$loc
  hg -R mozilla-beta/$loc push -r default ssh://hg.mozilla.org/releases/l10n/mozilla-beta/$loc
  hg -R mozilla-aurora/$loc pull -u -r default mozilla-beta/$loc

  # Specific for 54 on aurora:
  hg --cwd mozilla-aurora/$loc rm browser/chrome/browser/syncCustomize.dtd
  hg --cwd mozilla-aurora/$loc rm browser/chrome/browser/syncGenericChange.properties
  hg --cwd mozilla-aurora/$loc rm browser/chrome/browser/syncKey.dtd
  hg --cwd mozilla-aurora/$loc rm browser/chrome/browser/syncQuota.*
  hg --cwd mozilla-aurora/$loc rm browser/chrome/browser/syncSetup.dtd
  hg --cwd mozilla-aurora/$loc ci -m 'Bug 1296767 - Remove legacy Sync code from Sync'

  # Push to aurora
  hg --cwd mozilla-aurora/$loc push -r default ssh://hg.mozilla.org/releases/l10n/mozilla-aurora/$loc
done

This goes through all locales, does a final pull, does the no-op-merge, and pushes to aurora, and then beta. That way, you minimize the time when commits can create heads.