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There is generally no use case where any setup is required before init, and requiring the explicit function call is error-prone and unnecessary. It also causes trouble with packages using a similar trick. This change moves argv0 check early and makes it an import side effect. The stub will be removed in v0.5. Signed-off-by: Ophestra <cat@gensokyo.uk>
37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
package container
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import (
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"fmt"
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. "syscall"
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"hakurei.app/check"
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)
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// Proc is a helper for appending [MountProcOp] to [Ops].
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func (f *Ops) Proc(target *check.Absolute) *Ops {
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*f = append(*f, &MountProcOp{target})
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return f
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}
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// MountProcOp mounts a new instance of [FstypeProc] on container path Target.
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type MountProcOp struct{ Target *check.Absolute }
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func (p *MountProcOp) Valid() bool { return p != nil && p.Target != nil }
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func (p *MountProcOp) early(*setupState, syscallDispatcher) error { return nil }
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func (p *MountProcOp) apply(state *setupState, k syscallDispatcher) error {
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target := toSysroot(p.Target.String())
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if err := k.mkdirAll(target, state.ParentPerm); err != nil {
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return err
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}
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return k.mount(SourceProc, target, FstypeProc, MS_NOSUID|MS_NOEXEC|MS_NODEV, zeroString)
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}
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func (p *MountProcOp) late(*setupState, syscallDispatcher) error { return nil }
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func (p *MountProcOp) Is(op Op) bool {
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vp, ok := op.(*MountProcOp)
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return ok && p.Valid() && vp.Valid() &&
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p.Target.Is(vp.Target)
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}
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func (*MountProcOp) prefix() (string, bool) { return "mounting", true }
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func (p *MountProcOp) String() string { return fmt.Sprintf("proc on %q", p.Target) }
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