forked from gopasspw/gopass
/
list.go
150 lines (131 loc) · 3.51 KB
/
list.go
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package action
import (
"bytes"
"context"
"fmt"
"io"
"os"
"os/exec"
"strings"
"github.com/gopasspw/gopass/pkg/ctxutil"
"github.com/gopasspw/gopass/pkg/termutil"
"github.com/gopasspw/gopass/pkg/tree"
"github.com/fatih/color"
shellquote "github.com/kballard/go-shellquote"
"github.com/pkg/errors"
"github.com/urfave/cli"
)
// List all secrets as a tree. If the filter argument is non-empty
// display only those that have this prefix
func (s *Action) List(ctx context.Context, c *cli.Context) error {
filter := c.Args().First()
flat := c.Bool("flat")
stripPrefix := c.Bool("strip-prefix")
limit := c.Int("limit")
folders := c.Bool("folders")
// we only support listing folders in flat mode currently
if folders {
flat = true
}
ctx = s.Store.WithConfig(ctx, filter)
l, err := s.Store.Tree(ctx)
if err != nil {
return ExitError(ctx, ExitList, err, "failed to list store: %s", err)
}
if filter == "" {
return s.listAll(ctx, l, limit, flat, folders)
}
return s.listFiltered(ctx, l, limit, flat, folders, stripPrefix, filter)
}
func (s *Action) listFiltered(ctx context.Context, l tree.Tree, limit int, flat, folders, stripPrefix bool, filter string) error {
subtree, err := l.FindFolder(filter)
if err != nil {
return ExitError(ctx, ExitNotFound, nil, "Entry '%s' not found", filter)
}
// SetRoot formats the root entry properly
subtree.SetRoot(true)
subtree.SetName(filter)
if flat {
sep := "/"
if strings.HasSuffix(filter, "/") {
sep = ""
}
listOver := subtree.List
if folders {
listOver = subtree.ListFolders
}
for _, e := range listOver(limit) {
if stripPrefix {
fmt.Fprintln(stdout, e)
continue
}
fmt.Fprintln(stdout, filter+sep+e)
}
return nil
}
// we may need to redirect stdout for the pager support
so, buf := redirectPager(ctx, subtree)
fmt.Fprintln(so, subtree.Format(limit))
if buf != nil {
if err := s.pager(ctx, buf); err != nil {
return ExitError(ctx, ExitUnknown, err, "failed to invoke pager: %s", err)
}
}
return nil
}
// redirectPager returns a redirected io.Writer if the output would exceed
// the terminal size
func redirectPager(ctx context.Context, subtree tree.Tree) (io.Writer, *bytes.Buffer) {
if ctxutil.IsNoPager(ctx) {
return stdout, nil
}
rows, _ := termutil.GetTermsize()
if rows <= 0 {
return stdout, nil
}
if subtree == nil || subtree.Len() < rows {
return stdout, nil
}
color.NoColor = true
buf := &bytes.Buffer{}
return buf, buf
}
// listAll will unconditionally list all entries, used if no filter is given
func (s *Action) listAll(ctx context.Context, l tree.Tree, limit int, flat, folders bool) error {
if flat {
listOver := l.List
if folders {
listOver = l.ListFolders
}
for _, e := range listOver(limit) {
fmt.Fprintln(stdout, e)
}
return nil
}
// we may need to redirect stdout for the pager support
so, buf := redirectPager(ctx, l)
fmt.Fprintln(so, l.Format(limit))
if buf != nil {
if err := s.pager(ctx, buf); err != nil {
return ExitError(ctx, ExitUnknown, err, "failed to invoke pager: %s", err)
}
}
return nil
}
// pager invokes the default pager with the given content
func (s *Action) pager(ctx context.Context, buf io.Reader) error {
pager := os.Getenv("PAGER")
if pager == "" {
fmt.Fprintln(stdout, buf)
return nil
}
args, err := shellquote.Split(pager)
if err != nil {
return errors.Wrapf(err, "failed to split pager command")
}
cmd := exec.CommandContext(ctx, args[0], args[1:]...)
cmd.Stdin = buf
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}