cg-rm

#!/usr/bin/env bash
#
# Remove files from the repository
# Copyright (c) Petr Baudis, 2005
#
# Takes a list of file names at the command line, and schedules them
# for removal from the GIT repository at the next commit. Those files
# are denoted by 'D' in the `cg-status` list. You can remove `cg-add`ed
# files to undo the addition; you can undo removals in an analogous way
# using `cg-add` and restore files deleted from the working copy using
# `cg-restore`.
#
# OPTIONS
# -------
# -a:: Remove all files which are gone from the working copy
#	Record removal of all files which have been deleted from
#	the working copy. Useful when there were some random files
#	added/removed (e.g. by some third-party application) and you
#	want to get the repository in sync: just use
#	`cg-rm -a && cg-add -a`.
#
# -f:: Force removal of the physical files
#	Also delete the files from the tree physically.
#
# -n:: Keep the physical files
#	Do not delete the files from the tree physically, if they are
#	still there. So it effectively just makes Cogito to stop caring
#	about the file. This is the default.
#
# -r:: Remove files recursively
#	If you pass cg-rm this flag and any directory names, it will try
#	to remove files in those directories recursively.

# Testsuite: Partial (used in many tests but a dedicated testsuite is missing)

USAGE="cg-rm [-a] [-f] [-n] [-r] FILE..."

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

delete=
recursive=
rmgone=
while optparse; do
	if optparse -f; then
		delete=1
	elif optparse -n; then
		delete=
	elif optparse -r; then
		recursive=1
	elif optparse -a; then
		rmgone=1
	else
		optfail
	fi
done

[ -n "${ARGS[*]}" -o "$rmgone" ] || usage

TMPFILE="$(mktemp -t gitrm.XXXXXX)" || exit 1
TMPDIRFILE="$(mktemp -t gitrm.XXXXXX)" || exit 1
error=
non_existent=""

for file in "${ARGS[@]}"; do
	absfile="$_git_relpath$file"

	if [ ! -e "$absfile" ]; then
		non_existent=" - not found, only recording removal"
	fi

	if [ -d "$absfile" ]; then
		if [ "$recursive" ]; then
			echo "$file" >>"$TMPDIRFILE"
			git-ls-files "$absfile" | while IFS=$'' read path; do
				echo "${path#$_git_relpath}"
			done >>"$TMPFILE"
		else
			echo "$file is a directory (use cg-rm -r?)" >&2
			error=1
		fi
	else
		echo "$file" >>"$TMPFILE"
	fi
done

if [ "$rmgone" ]; then
	(cd "$_git_relpath" && cg-status -s \! -n -w) >>"$TMPFILE"
	if [ ! -s "$TMPFILE" ]; then
		rm "$TMPFILE" "$TMPDIRFILE"
		die "no files to remove"
	fi
fi

cat "$TMPFILE" | sed -e 's/^/Removing file /' -e "s/\$/${non_existent}/"
if [ "$delete" ]; then (
	cd "${_git_relpath:-.}"
	cat "$TMPFILE" | tr '\n' '\0' | xargs -0 rm -f
	[ -s "$TMPDIRFILE" ] && cat "$TMPDIRFILE" | tr '\n' '\0' | xargs -0 rmdir --ignore-fail-on-non-empty -p
); fi
cat "$TMPFILE" | sed "s|^|$_git_relpath|" | path_xargs git-update-index --force-remove -- || error=1

rm "$TMPFILE" "$TMPDIRFILE"

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