forked from snapcore/snapd
/
cmd_handle_link.go
91 lines (78 loc) · 2.25 KB
/
cmd_handle_link.go
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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2018 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* 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 (
"fmt"
"os"
"syscall"
"time"
"github.com/jessevdk/go-flags"
"github.com/snapcore/snapd/i18n"
"github.com/snapcore/snapd/usersession/userd/ui"
)
type cmdHandleLink struct {
waitMixin
Positional struct {
Uri string `positional-arg-name:"<uri>"`
} `positional-args:"yes" required:"yes"`
}
func init() {
cmd := addCommand("handle-link",
i18n.G("Handle a snap:// URI"),
i18n.G("The handle-link command installs the snap-store snap and then invokes it."),
func() flags.Commander {
return &cmdHandleLink{}
}, nil, nil)
cmd.hidden = true
}
func (x *cmdHandleLink) ensureSnapStoreInstalled() error {
// If the snap-store snap is installed, our work is done
if _, _, err := x.client.Snap("snap-store"); err == nil {
return nil
}
dialog, err := ui.New()
if err != nil {
return err
}
answeredYes := dialog.YesNo(
i18n.G("Install snap-aware Snap Store snap?"),
i18n.G("The Snap Store is required to open snaps from a web browser."),
&ui.DialogOptions{
Timeout: 5 * time.Minute,
Footer: i18n.G("This dialog will close automatically after 5 minutes of inactivity."),
})
if !answeredYes {
return fmt.Errorf(i18n.G("Snap Store required"))
}
changeID, err := x.client.Install("snap-store", nil)
if err != nil {
return err
}
_, err = x.wait(changeID)
if err != nil && err != noWait {
return err
}
return nil
}
func (x *cmdHandleLink) Execute([]string) error {
if err := x.ensureSnapStoreInstalled(); err != nil {
return err
}
argv := []string{"snap", "run", "snap-store", x.Positional.Uri}
return syscall.Exec("/proc/self/exe", argv, os.Environ())
}