push

#!/usr/bin/env bash
# vim: set ft=bash ts=3 sw=3 expandtab:
# Push shared code into an existing repository.

# The general rule is that individual repos may customize only tasks, not any
# of the other code.  This means that when synchronizing shared code, it's always
# safe to overwrite the run script, util.sh, and all of the command scripts.
#
# For tasks, we replace only standard, non-customized tasks.  We never add a
# new task that does not already exist in the repo.  A repo can flag a
# customized task using a marker comment "# runscript: customized=true".  If
# this marker is found in first 5 lines of code, then the script is considered
# customized and will be ignored.

if [ $# != 1 ]; then
   echo "usage: push <target-repo-dir>"
   exit 1
fi

TARGET_DIR=$(echo "$(cd $(dirname "$1");pwd)/$(basename "$1")") # get the absolute path

if [ ! -d "$TARGET_DIR" ]; then
   echo "Target repository does not exist: $TARGET_DIR"
   exit 1
fi

if [ ! -f "$TARGET_DIR/run" ] || [ ! -d "$TARGET_DIR/.run/commands" ]; then
   echo "Common run script framework not found in repository: $TARGET_DIR"
   exit 1
fi

echo -n "Synchronizing run script..."
cp -f run "$TARGET_DIR/run"
echo "done"

echo -n "Synchronizing util.sh script..."
cp -f util.sh "$TARGET_DIR/.run/util.sh"
echo "done"

echo -n "Synchronizing all commands..."
cp -f commands/*.sh "$TARGET_DIR/.run/commands"
echo "done"

echo -n "Synchronizing non-customized tasks..."
cd tasks
for TASK in *.sh; do
   TARGET="$TARGET_DIR/.run/tasks/$TASK"
   if [ -f "$TARGET" ]; then
      head -5 "$TARGET" | grep -q "^# runscript: customized=true"
      if [ $? != 0 ]; then
         cp -f $TASK "$TARGET"
      fi
   fi
done
echo "done"