-/*
-goredo -- djb's redo implementation on pure Go
-Copyright (C) 2020-2023 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/>.
// Out-of-date determination
package main
import (
+ "bytes"
"errors"
"fmt"
"io"
)
const (
- DepTypeIfcreate = "ifcreate"
- DepTypeIfchange = "ifchange"
- DepTypeAlways = "always"
- DepTypeStamp = "stamp"
-
EnvOODTgtsFd = "REDO_OOD_TGTS_FD"
EnvOODTgtsLockFd = "REDO_OOD_TGTS_LOCK_FD"
)
OODCache = make(map[string]bool)
FileExistsCache = make(map[string]bool)
- DepInfoCache = make(map[string]*DepInfo)
-
- ErrMissingTarget = errors.New("invalid format of .rec: missing Target")
)
func FileExists(p string) bool {
if FileExists(tgt.a + ".do") {
return false
}
- if FileExists(tgt.Dep()) {
+ if FileExists(tgt.dep) {
return false
}
return true
}
func isOODByBuildUUID(tgt *Tgt) bool {
- build, err := depReadBuild(tgt.Dep())
+ build, err := depBuildRead(tgt.dep)
return err != nil || build != BuildUUID
}
func isOOD(tgt *Tgt, level int, seen map[string]*Tgt) (bool, error) {
indent := strings.Repeat(". ", level)
tracef(CDebug, "ood: %s%s checking", indent, tgt)
- ood, cached := OODCache[tgt.a]
+ ood, cached := OODCache[tgt.rel]
if cached {
tracef(CDebug, "ood: %s%s -> cached: %v", indent, tgt, ood)
return ood, nil
}
- depInfo := DepInfoCache[tgt.Dep()]
+ dep := DepCache[tgt.rel]
var err error
- if depInfo == nil {
- depInfo, err = depRead(tgt)
+ if dep == nil {
+ dep, err = depRead(tgt)
if err != nil {
if errors.Is(err, fs.ErrNotExist) {
if isSrc(tgt) {
tracef(CDebug, "ood: %s%s -> is source", indent, tgt)
} else {
ood = true
- tracef(CDebug, "ood: %s%s -> no dep: %s", indent, tgt, tgt.Dep())
+ tracef(CDebug, "ood: %s%s -> no dep: %s", indent, tgt, tgt.dep)
}
- OODCache[tgt.a] = ood
+ OODCache[tgt.rel] = ood
return ood, nil
}
if err != nil {
return true, TgtError{tgt, ErrLine(err)}
}
}
- DepInfoCache[tgt.Dep()] = depInfo
+ DepCache[tgt.rel] = dep
}
- if depInfo.build == BuildUUID {
+ if dep.build == BuildUUID {
tracef(CDebug, "ood: %s%s -> already built", indent, tgt)
- OODCache[tgt.a] = false
+ OODCache[tgt.rel] = false
return false, nil
}
if !FileExists(tgt.a) {
tracef(CDebug, "ood: %s%s -> non-existent", indent, tgt)
- OODCache[tgt.a] = true
+ OODCache[tgt.rel] = true
return true, nil
}
- for _, dep := range depInfo.ifcreates {
- if FileExists(dep.a) {
- tracef(CDebug, "ood: %s%s -> %s created", indent, tgt, dep)
+ for _, ifcreate := range dep.ifcreates {
+ if FileExists(ifcreate.a) {
+ tracef(CDebug, "ood: %s%s -> %s created", indent, tgt, ifcreate)
ood = true
goto Done
}
}
- for _, dep := range depInfo.ifchanges {
- tracef(CDebug, "ood: %s%s -> %s: checking", indent, tgt, dep.tgt)
- ood, cached = OODCache[dep.tgt.a]
+ for _, ifchange := range dep.ifchanges {
+ tracef(CDebug, "ood: %s%s -> %s: checking", indent, tgt, ifchange.tgt)
+ ood, cached = OODCache[ifchange.tgt.rel]
if cached {
- tracef(CDebug, "ood: %s%s -> %s: cached: %v", indent, tgt, dep.tgt, ood)
+ tracef(CDebug, "ood: %s%s -> %s: cached: %v", indent, tgt, ifchange.tgt, ood)
if ood {
goto Done
}
continue
}
- inode, err := inodeFromFileByPath(dep.tgt.a)
+ inode, err := inodeFromFileByPath(ifchange.tgt.a)
if err != nil {
if errors.Is(err, fs.ErrNotExist) {
- tracef(CDebug, "ood: %s%s -> %s: not exists", indent, tgt, dep.tgt)
+ tracef(CDebug, "ood: %s%s -> %s: not exists", indent, tgt, ifchange.tgt)
ood = true
- OODCache[dep.tgt.a] = ood
+ OODCache[ifchange.tgt.rel] = ood
goto Done
}
return ood, TgtError{tgt, ErrLine(err)}
}
- if inode.Size != dep.inode.Size {
- tracef(CDebug, "ood: %s%s -> %s: size differs", indent, tgt, dep.tgt)
+ if !bytes.Equal(inode[:8], ifchange.Inode()[:8]) {
+ tracef(CDebug, "ood: %s%s -> %s: size differs", indent, tgt, ifchange.tgt)
ood = true
- OODCache[dep.tgt.a] = ood
+ OODCache[ifchange.tgt.rel] = ood
goto Done
}
- if InodeTrust != InodeTrustNone && inode.Equals(dep.inode) {
- tracef(CDebug, "ood: %s%s -> %s: same inode", indent, tgt, dep.tgt)
+ if InodeTrust != InodeTrustNone && inode.Equals(ifchange.Inode()) {
+ tracef(CDebug, "ood: %s%s -> %s: same inode", indent, tgt, ifchange.tgt)
} else {
- tracef(CDebug, "ood: %s%s -> %s: inode differs", indent, tgt, dep.tgt)
- fd, err := os.Open(dep.tgt.a)
+ tracef(CDebug, "ood: %s%s -> %s: inode differs", indent, tgt, ifchange.tgt)
+ fd, err := os.Open(ifchange.tgt.a)
if err != nil {
return ood, TgtError{tgt, ErrLine(err)}
}
if err != nil {
return ood, TgtError{tgt, ErrLine(err)}
}
- if dep.hash != hsh {
- tracef(CDebug, "ood: %s%s -> %s: hash differs", indent, tgt, dep.tgt)
+ if ifchange.Hash() != hsh {
+ tracef(CDebug, "ood: %s%s -> %s: hash differs", indent, tgt, ifchange.tgt)
ood = true
- OODCache[dep.tgt.a] = ood
+ OODCache[ifchange.tgt.rel] = ood
goto Done
}
- tracef(CDebug, "ood: %s%s -> %s: same hash", indent, tgt, dep.tgt)
+ tracef(CDebug, "ood: %s%s -> %s: same hash", indent, tgt, ifchange.tgt)
}
- if dep.tgt.a == tgt.a {
- tracef(CDebug, "ood: %s%s -> %s: same target", indent, tgt, dep.tgt)
+ if ifchange.tgt.rel == tgt.rel {
+ tracef(CDebug, "ood: %s%s -> %s: same target", indent, tgt, ifchange.tgt)
continue
}
- if isSrc(dep.tgt) {
- tracef(CDebug, "ood: %s%s -> %s: is source", indent, tgt, dep.tgt)
- OODCache[dep.tgt.a] = false
+ if isSrc(ifchange.tgt) {
+ tracef(CDebug, "ood: %s%s -> %s: is source", indent, tgt, ifchange.tgt)
+ OODCache[ifchange.tgt.rel] = false
continue
}
- if _, ok := seen[dep.tgt.a]; ok {
- tracef(CDebug, "ood: %s%s -> %s: was always built", indent, tgt, dep.tgt)
- OODCache[dep.tgt.a] = false
+ if _, ok := seen[ifchange.tgt.rel]; ok {
+ tracef(CDebug, "ood: %s%s -> %s: was always built", indent, tgt, ifchange.tgt)
+ OODCache[ifchange.tgt.rel] = false
continue
}
- depOOD, err := isOODWithTrace(dep.tgt, level+1, seen)
+ depOOD, err := isOODWithTrace(ifchange.tgt, level+1, seen)
if err != nil {
return ood, TgtError{tgt, err}
}
if depOOD {
- tracef(CDebug, "ood: %s%s -> %s: ood", indent, tgt, dep.tgt)
+ tracef(CDebug, "ood: %s%s -> %s: ood", indent, tgt, ifchange.tgt)
ood = true
goto Done
}
- tracef(CDebug, "ood: %s%s -> %s: !ood", indent, tgt, dep.tgt)
+ tracef(CDebug, "ood: %s%s -> %s: !ood", indent, tgt, ifchange.tgt)
}
Done:
tracef(CDebug, "ood: %s%s: %v", indent, tgt, ood)
- OODCache[tgt.a] = ood
+ OODCache[tgt.rel] = ood
return ood, nil
}