Adds pm rm

This commit is contained in:
Stephen McQuay 2018-03-06 21:46:25 -08:00
parent f07b5a7d0e
commit 51c8c920a3
Signed by: sm
GPG Key ID: 4E4B72F479BA3CE5
3 changed files with 72 additions and 3 deletions

22
cs.go Normal file
View File

@ -0,0 +1,22 @@
package pm
import (
"bufio"
"fmt"
"io"
"strings"
)
// ParseCS returns a parsed checksum file.
func ParseCS(f io.Reader) (map[string]string, error) {
cs := map[string]string{}
s := bufio.NewScanner(f)
for s.Scan() {
elems := strings.Split(s.Text(), "\t")
if len(elems) != 2 {
return nil, fmt.Errorf("manifest format error; got %d elements, want 2", len(elems))
}
cs[elems[1]] = elems[0]
}
return cs, nil
}

View File

@ -24,6 +24,16 @@ func AddInstalled(root string, m pm.Meta) error {
return savei(root, db) return savei(root, db)
} }
// RemoveInstalled adds m to the installed package database.
func RemoveInstalled(root string, m pm.Meta) error {
db, err := loadi(root)
if err != nil {
return errors.Wrap(err, "loading installed db")
}
delete(db, m.Name)
return savei(root, db)
}
// IsInstalled checks if m is in the installed package database. // IsInstalled checks if m is in the installed package database.
func IsInstalled(root string, m pm.Meta) (bool, error) { func IsInstalled(root string, m pm.Meta) (bool, error) {
db, err := loadi(root) db, err := loadi(root)

View File

@ -1,9 +1,11 @@
package pkg package pkg
import ( import (
"log" "os"
"path/filepath"
"github.com/pkg/errors" "github.com/pkg/errors"
"mcquay.me/pm"
"mcquay.me/pm/db" "mcquay.me/pm/db"
) )
@ -18,7 +20,42 @@ func Remove(root string, pkgs []string) error {
if err != nil { if err != nil {
return errors.Wrap(err, "checking ability to remove") return errors.Wrap(err, "checking ability to remove")
} }
log.Printf("%+v", ms)
return errors.New("NYI") for _, m := range ms {
if err := script(root, m, "pre-remove"); err != nil {
return errors.Wrap(err, "pre-remove")
}
mdir := filepath.Join(root, installed, string(m.Name))
bom := filepath.Join(mdir, "bom.sha256")
bf, err := os.Open(bom)
if err != nil {
return errors.Wrapf(err, "%q: opening bom", m.Name)
}
cs, err := pm.ParseCS(bf)
if err != nil {
return errors.Wrapf(err, "%q: parsing bom", m.Name)
}
for n := range cs {
if err := os.Remove(filepath.Join(root, n)); err != nil {
return errors.Wrapf(err, "pkg %q", m.Name)
}
}
if err := script(root, m, "post-remove"); err != nil {
return errors.Wrap(err, "post-remove")
}
if err := db.RemoveInstalled(root, m); err != nil {
return errors.Wrapf(err, "removing %q", m.Name)
}
if err := os.RemoveAll(mdir); err != nil {
return errors.Wrapf(err, "%q: removing pm install dir", m.Name)
}
}
return nil
} }