X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=sources.go;h=6a925e24dc6c2b4318da1bf73e7f7afa25a87dd6;hb=HEAD;hp=e321c43b96ef5591596658162a373adc950b8885;hpb=609842c96d2bb25c509f3d2949fe26f60ec03a5f;p=goredo.git

diff --git a/sources.go b/sources.go
index e321c43..6a925e2 100644
--- a/sources.go
+++ b/sources.go
@@ -1,57 +1,59 @@
-/*
-goredo -- djb's redo implementation on pure Go
-Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
+// goredo -- djb's redo implementation on pure Go
+// Copyright (C) 2020-2024 Sergey Matveev <stargrave@stargrave.org>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 package main
 
 import (
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
+	"errors"
+	"io/fs"
 )
 
-func sourcesWalker() ([]string, error) {
-	tgts, err := targetsWalker(Cwd)
-	if err != nil {
-		return nil, err
-	}
-	srcs := make(map[string]struct{}, 1<<10)
+func sourcesWalker(
+	tgts []*Tgt,
+	seen map[string]struct{},
+	seenDeps map[string]struct{},
+	srcs map[string]*Tgt,
+) error {
 	for _, tgt := range tgts {
-		cwd, f := path.Split(tgt)
-		fdDep, err := os.Open(path.Join(cwd, RedoDir, f+DepSuffix))
+		if _, ok := seenDeps[tgt.rel]; ok {
+			continue
+		}
+		seenDeps[tgt.rel] = struct{}{}
+		dep, err := depRead(tgt)
 		if err != nil {
-			return nil, err
+			if errors.Is(err, fs.ErrNotExist) {
+				continue
+			}
+			return ErrLine(err)
 		}
-		depInfo, err := depRead(fdDep)
-		fdDep.Close()
-		for _, m := range depInfo.ifchanges {
-			tgt = m["Target"]
-			if !strings.HasSuffix(tgt, ".do") && isSrc(cwd, tgt) {
-				pth, err := filepath.Abs(path.Join(cwd, tgt))
-				if err != nil {
-					panic(err)
+		for _, ifchange := range dep.ifchanges {
+			if _, ok := seen[ifchange.tgt.rel]; ok {
+				continue
+			}
+			seen[ifchange.tgt.rel] = struct{}{}
+			if isSrc(ifchange.tgt) {
+				srcs[ifchange.tgt.rel] = ifchange.tgt
+			} else if ifchange.tgt.rel != tgt.rel {
+				if err := sourcesWalker(
+					[]*Tgt{ifchange.tgt},
+					seen, seenDeps, srcs,
+				); err != nil {
+					return err
 				}
-				srcs[cwdMustRel(pth)] = struct{}{}
 			}
 		}
 	}
-	tgts = make([]string, 0, len(srcs))
-	for tgt := range srcs {
-		tgts = append(tgts, tgt)
-	}
-	return tgts, nil
+	return nil
 }