#!/usr/bin/env bash
#
# Add files to the GIT repository.
# Copyright (c) Petr Baudis, 2005
#
# Takes a list of file names at the command line, and schedules them
# for addition to the GIT repository at the next commit.
#
# The command will fail if one of the given files does not exist.
#
# Note that directories never have to be added to the repository, and are
# not tracked on their own. That means, you cannot currently add an empty
# directory to 'Cogito'. The reason for this is that 'Cogito' manages
# content and empty directories have no content. Directories are added
# automatically when adding files inside them, or you can add all files in
# a directory using cg-add -r.
#
# OPTIONS
# -------
# -N::	Update the lowlevel cache file
#	Only update the cache: do not copy the data into the object database.
#	This is for special purposes when you might not actually _have_ any
#	object database. This option is normally not interesting.
#
# -r::	Add files recursively
#	If you pass cg-add this flag and any directory names, it will try
#	to add files in those directories recursively (with regard to your
#	ignore rules - see `cg-status` for a more detailed description of
#	those). See also above for more notes about cg-add vs. directories.

USAGE="cg-add [-N] [-r] FILE..."

. "${COGITO_LIB}"cg-Xlib || exit 1

infoonly=
recursive=
while optparse; do
	if optparse -N; then
		infoonly=--info-only
	elif optparse -r; then
		recursive=1
	else
		optfail
	fi
done

[ ${#ARGS[*]} -ge 1 ] || usage

TMPFILE="$(mktemp -t gitadd.XXXXXX)" || exit 1
error=
for file in "${ARGS[@]}"; do
	file="${file%/}"
	absfile="$(echo "$_git_relpath$file" | normpath)"
	if [ -d "$absfile" ] || [ -z "$absfile" ]; then
		if [ "$recursive" ]; then
			cg-status -wnSs D\? |
				if [ -z "$absfile" ]; then # adding everything
					cat >>"$TMPFILE"
				else
					while IFS=$'' read path; do
						[ x"${path#$absfile/}" != x"$path" ] &&
							echo "$file${path#$absfile}" >>"$TMPFILE"
					done
				fi
		else
			echo "$file is a directory (use cg-add -r?)" >&2
			error=1
		fi
	elif [ ! -f "$absfile" ] && [ -h "$absfile" ]; then
		echo "$file does not exist or is not a regular file or a symlink" >&2
		error=1
	else
		echo "$file" >>"$TMPFILE"
	fi
done

cat "$TMPFILE" | sed 's/^/Adding file /'
cat "$TMPFILE" | sed "s|^|$_git_relpath|" | path_xargs git-update-index --add ${infoonly} -- || error=1

rm "$TMPFILE"

[ "$error" ] && die "warning: not all items could have been added"
exit 0