Support CVS. I actually tested the package adding, updating, bumping, and removal operations this time ;-).

sunrise-commit

@@ -56,6 +56,8 @@ find_repo() {
 		SC_VCS=svn
 	elif hg tip >/dev/null 2>&1; then
 		SC_VCS=hg
+	elif cvs status -l >/dev/null 2>&1; then
+		SC_VCS=cvs
 	else
 		local remotes
 		remotes=$(git branch -r 2>/dev/null)
@@ -83,6 +85,8 @@ is_whole_dir_removed() {
 		[ -z "$(git ls-files -c -- "${1}")" ]
 	elif [ ${SC_VCS} = hg ]; then
 		[ -z "$(hg status -madc "${1}")" ]
+	elif [ ${SC_VCS} = cvs ]; then
+		[ -z "$(cvs -Q status -R "${1}" 2>/dev/null | grep -e '^File:' | grep -v -e 'Status: Locally Removed$')" ]
 	fi
 }
 
@@ -95,6 +99,8 @@ is_package_removal() {
 		list=$(git diff-index --relative --name-only --diff-filter=D HEAD)
 	elif [ ${SC_VCS} = hg ]; then
 		list=$(hg status -nr .)
+	elif [ ${SC_VCS} = cvs ]; then
+		list=$(cvs -n -q up 2>/dev/null | sed -n -e 's/^R//p')
 	elif [ ${SC_VCS} = svn ]; then
 		list=$(svn status -q | sed -n -e 's/^D       //p')
 	fi
@@ -188,6 +194,9 @@ check_for_changes() {
 		output=$(hg status -- ${1-.} "${@}")
 	elif [ ${SC_VCS} = svn ]; then
 		output=$(svn status -- "${@}")
+	elif [ ${SC_VCS} = cvs ]; then
+		# `U' indicates a remote, incomming update.
+		output=$(cvs -n -q update -R -- "${@}" 2>/dev/null | grep -v -e '^U')
 	fi
 
 	[ -z "${output}" ] && return 1
@@ -205,6 +214,11 @@ vcs_reset() {
 	elif [ ${SC_VCS} = svn ]; then
 		req rm -f -- "${@}"
 		svn revert -- "${@}" >/dev/null
+	elif [ ${SC_VCS} = cvs ]; then
+		# cvs update -C does exist, but it sometimes doesn't
+		# work.
+		req rm -f -- "${@}"
+		cvs update -- "${@}" >/dev/null 2>&1
 	fi
 }
 
@@ -216,6 +230,8 @@ vcs_status() {
 		hg status -- ${1-.}  "${@}"
 	elif [ ${SC_VCS} = svn ]; then
 		svn status -- "${@}"
+	elif [ ${SC_VCS} = cvs ]; then
+		cvs -n -q up -- "${@}" 2>/dev/null | grep -v -e '^U'
 	fi
 }
 
@@ -237,6 +253,8 @@ vcs_commit() {
 		exec hg commit -m "${msg}" -- ${1-.} "${@}"
 	elif [ ${SC_VCS} = svn ]; then
 		exec svn commit -m "${msg}" -- "${@}"
+	elif [ ${SC_VCS} = cvs ]; then
+		exec cvs commit -m "${msg}" -- "${@}"
 	fi
 }
 
@@ -244,8 +262,8 @@ vcs_commit() {
 vcs_update() {
 	# Unlike svn, DVCSes don't push the changes to their origins immediately.
 	# That's why we don't force update to it right here.
-	if [ ${SC_VCS} = svn ]; then
-		svn up -- "${@}" || say 'Warning: svn up failed, trying to proceed anyway.'
+	if [ ${SC_VCS} = svn -o ${SC_VCS} = cvs ]; then
+		${SC_VCS} up -- "${@}" || say "Warning: ${SC_VCS} up failed, trying to proceed anyway."
 	fi
 }
 
@@ -381,7 +399,7 @@ main() {
 
 			# With DVCS repos, we do not do ChangeLogs by default...
 			# ...at least unless they're already there.
-			if [ ${SC_VCS#git-} = svn -o -f ChangeLog ]; then
+			if [ ${SC_VCS#git-} = svn -o ${SC_VCS#git-} = cvs -o -f ChangeLog ]; then
 				sayv 'Cleaning up the ChangeLog...'
 				vcs_reset ChangeLog