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uninstall_cmd.go
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uninstall_cmd.go
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package app
import (
"os"
"github.com/pkg/errors"
"github.com/cashapp/hermit"
"github.com/cashapp/hermit/envars"
"github.com/cashapp/hermit/manifest"
"github.com/cashapp/hermit/shell"
"github.com/cashapp/hermit/ui"
)
type uninstallCmd struct {
Packages []string `arg:"" help:"Packages to uninstall from this environment." predictor:"installed-package"`
}
func (u *uninstallCmd) Run(l *ui.UI, env *hermit.Env) error {
installed, err := env.ListInstalled(l)
if err != nil {
return errors.WithStack(err)
}
selectors := []manifest.Selector{}
for _, pkg := range u.Packages {
globs, err := manifest.GlobSelector(pkg)
if err != nil {
return errors.WithStack(err)
}
selectors = append(selectors, globs)
}
changes := shell.NewChanges(envars.Parse(os.Environ()))
next:
for _, selector := range selectors {
for _, pkg := range installed {
if selector.Matches(pkg.Reference) {
c, err := env.Uninstall(l, pkg)
if err != nil {
return errors.WithStack(err)
}
changes = changes.Merge(c)
continue next
}
}
return errors.Errorf("package %s is not installed", selector)
}
return nil
}