disabling cache; it's not really necessary.

conf/funcs_perms.go

@@ -0,0 +1,106 @@
+package conf
+
+import (
+	`io/fs`
+	`os`
+	`os/user`
+	`strconv`
+
+	`r00t2.io/sysutils/paths`
+)
+
+// Chmod enforces perms for a file or directory.
+func (p *Perms) Chmod(path string, isNew bool) (err error) {
+
+	var fi fs.FileInfo
+
+	if err = paths.RealPath(&path); err != nil {
+		return
+	}
+	if fi, err = os.Stat(path); err != nil {
+		return
+	}
+
+	// If we add additional spec types (e.g. sockets, etc.), make this a switch.
+	if fi.IsDir() {
+		if p.ParentDir != nil {
+			if err = p.ParentDir.chmod(path, isNew); err != nil {
+				return
+			}
+		}
+	} else {
+		if p.File != nil {
+			if err = p.File.chmod(path, isNew); err != nil {
+				return
+			}
+		}
+	}
+
+	return
+}
+
+// Chown enforces owner/group for a file or directory.
+func (p *Perms) Chown(path string) (err error) {
+
+	var fi fs.FileInfo
+
+	if err = paths.RealPath(&path); err != nil {
+		return
+	}
+
+	// If we add additional spec types (e.g. sockets, etc.), make this a switch.
+	if fi.IsDir() {
+		if p.ParentDir != nil {
+			if err = p.ParentDir.chown(path); err != nil {
+				return
+			}
+		}
+	} else {
+		if p.File != nil {
+			if err = p.File.chown(path); err != nil {
+				return
+			}
+		}
+	}
+
+	return
+}
+
+// SetMissing populates any missing fields.
+func (p *Perms) SetMissing() (err error) {
+
+	if p.curUser == nil {
+		if p.curUser, err = user.Current(); err != nil {
+			return
+		}
+		if p.curUid, err = strconv.Atoi(p.curUser.Uid); err != nil {
+			return
+		}
+	}
+	if p.curGroup == nil {
+		if p.curGroup, err = user.LookupGroupId(p.curGroup.Gid); err != nil {
+			return
+		}
+		if p.curGid, err = strconv.Atoi(p.curGroup.Gid); err != nil {
+			return
+		}
+	}
+
+	if p.File == nil {
+		p.File = new(PermSpec)
+	}
+	p.File.parent = p
+	if p.ParentDir == nil {
+		p.ParentDir = new(PermSpec)
+	}
+	p.ParentDir.parent = p
+
+	if err = p.File.setMissing(false); err != nil {
+		return
+	}
+	if err = p.ParentDir.setMissing(true); err != nil {
+		return
+	}
+
+	return
+}