internal/outcome: rename from app

This is less ambiguous, and more accurately describes the purpose of the package.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/outcome/sptmpdir.go

@@ -0,0 +1,44 @@
+package outcome
+
+import (
+	"encoding/gob"
+
+	"hakurei.app/container/check"
+	"hakurei.app/container/comp"
+	"hakurei.app/container/fhs"
+	"hakurei.app/hst"
+	"hakurei.app/system"
+	"hakurei.app/system/acl"
+)
+
+func init() { gob.Register(spTmpdirOp{}) }
+
+// spTmpdirOp sets up TMPDIR inside the container.
+type spTmpdirOp struct{}
+
+func (s spTmpdirOp) toSystem(state *outcomeStateSys) error {
+	if state.Container.Flags&hst.FShareTmpdir != 0 {
+		tmpdir, tmpdirInst := s.commonPaths(state.outcomeState)
+		state.sys.Ensure(tmpdir, 0700)
+		state.sys.UpdatePermType(system.User, tmpdir, acl.Execute)
+		state.sys.Ensure(tmpdirInst, 01700)
+		state.sys.UpdatePermType(system.User, tmpdirInst, acl.Read, acl.Write, acl.Execute)
+	}
+	return nil
+}
+
+func (s spTmpdirOp) toContainer(state *outcomeStateParams) error {
+	if state.Container.Flags&hst.FShareTmpdir != 0 {
+		_, tmpdirInst := s.commonPaths(state.outcomeState)
+		state.params.Bind(tmpdirInst, fhs.AbsTmp, comp.BindWritable)
+	} else {
+		state.params.Tmpfs(fhs.AbsTmp, 0, 01777)
+	}
+	return nil
+}
+
+func (s spTmpdirOp) commonPaths(state *outcomeState) (tmpdir, tmpdirInst *check.Absolute) {
+	tmpdir = state.sc.SharePath.Append("tmpdir")
+	tmpdirInst = tmpdir.Append(state.identity.String())
+	return
+}