Simplify the translations maintenance script.

- Removed bashisms
- Removed the call to SVN update which is usually done beforehand in CI
- Removed the git alternative which is never used
- Fixed the call to poediff which seems to fail with latest poediff

Tested on Jenkins since the revamp.
Reviewed By: Gallaecio
Differential Revision: https://code.wildfiregames.com/D2078
This was SVN commit r22690.

source/tools/i18n/maintenanceTasks.sh

@@ -1,36 +1,11 @@
-#!/bin/bash
+#!/bin/sh
 
-# Regenerates the POT files and uploads them to Transifex, downloads the latest
+# Regenerates the POT files, downloads the latest translations from Transifex,
-# translations from Transifex, and commits the updated POT and PO files.
+# and prepares the commit of the updated POT and PO files.
 
 SCRIPT_PATH="`dirname \"$0\"`"
 
 
-# VCS Config ##################################################################
-
-VCS="svn"
-VCS_UPDATE="svn update"
-VCS_REVERT="svn revert %s@"
-VCS_ADD="svn add %s"
-VCS_COMMIT_AND_PUSH="svn commit -m '[i18n] Updated POT and PO files.'"
-git rev-parse &> /dev/null
-if [[ "$?" = "0" ]]; then
-    VCS="git"
-    VCS_UPDATE="git pull --rebase origin master"
-    VCS_REVERT="git checkout -- %s"
-    VCS_ADD="git add %s"
-    VCS_COMMIT_AND_PUSH="git commit -am '[i18n] Updated POT and PO files.' &&
-                         git pull --rebase origin master &&
-                         git push origin master"
-fi
-
-
-# Source Update ###############################################################
-
-echo ":: Updating sources…"
-${VCS_UPDATE}
-
-
 # POT Generation ##############################################################
 
 echo ":: Regenerating the translation templates…"
@@ -54,10 +29,10 @@ python2 "${SCRIPT_PATH}/pullTranslations.py"
 echo ":: Reverting unnecessary changes…"
 for FILE_PATH in $(find "${SCRIPT_PATH}/../../../binaries/data" -name "*.pot" -o -name "*.po")
 do
-    if [[ ! -n "$(poediff -c ${VCS} -rHEAD -qs "${FILE_PATH}")" ]]; then
+    if [ -z "$(poediff -c svn -qs "${FILE_PATH}")" ]; then
-        $(printf "${VCS_REVERT}" "${FILE_PATH}")
+        svn revert "${FILE_PATH}"
     else
-        $(printf "${VCS_ADD}" ${FILE_PATH}) &> /dev/null
+        svn add "${FILE_PATH}" 2> /dev/null
     fi
 done