2 goredo -- djb's redo implementation on pure Go
3 Copyright (C) 2020-2023 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 3 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 seen map[string]struct{},
28 seenDeps map[string]struct{},
31 for _, tgt := range tgts {
32 if _, ok := seenDeps[tgt.Dep()]; ok {
35 seenDeps[tgt.Dep()] = struct{}{}
36 depInfo, err := depRead(tgt)
38 if errors.Is(err, fs.ErrNotExist) {
43 for _, dep := range depInfo.ifchanges {
44 if _, ok := seen[dep.tgt.a]; ok {
47 seen[dep.tgt.a] = struct{}{}
49 srcs[dep.tgt.a] = dep.tgt
50 } else if dep.tgt.a != tgt.a {
51 if err := sourcesWalker(