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#!/bin/dash

# Test if we have a valid repo before doing anything.
if ! [ -d ".tigger/" ]; then
  printf "tigger-add: error: tigger repository directory .tigger not found\n"
  exit 1
fi

# Get current branch, then current commit (default 0).
branch=$(cat .tigger/branch.tig)
mkdir --parents ".tigger/$branch/"


# Grabs the latest commit
commit=$(find .tigger/"$branch"/ -maxdepth 1 -type d | grep -o -E "[\/][^\/]*$" | tr -d "/" | sort -n -r | head -n 1)
if [ "$commit" = "" ]; then
  commit="0"
  mkdir --parents ".tigger/$branch/$commit/"
fi


staged_dir=".tigger/$branch/$commit/staged/"
mkdir --parents "$staged_dir"
for filename in "$@"; do
  
  if ! [ -f "$filename" ]; then

    # If it doesn't exist in the dir, but does exist in staged, delete staged.
    if [ -f .tigger/"$branch"/"$commit"/staged/"$filename" ]; then
    rm --force .tigger/"$branch"/"$commit"/staged/"$filename"
      continue
    fi

    printf "tigger-add: error: can not open '%s'\n" "$filename"
    exit 1
  fi


  cp "$filename" "$staged_dir"
done

exit 0