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The default fzf command (i.e. if FZF_DEFAULT_COMMAND is not set) uses
`set -o pipefail`. If this default command is used, fzf forces execution
of this command with bash as pipefail is a bash extension. We want to
make fzf work by default and do not want to force a dependency on bash.
Fourtunatly, busybox ash (our default shell) also supports the pipefail
option. As such, we can simply execute the default command with ash
instead of bash.
diff -upr fzf-0.27.0.orig/src/reader.go fzf-0.27.0/src/reader.go
--- fzf-0.27.0.orig/src/reader.go 2021-04-08 17:32:00.960374521 +0200
+++ fzf-0.27.0/src/reader.go 2021-04-08 17:34:00.764210636 +0200
@@ -98,8 +98,8 @@ func (r *Reader) ReadSource() {
r.startEventPoller()
var success bool
if util.IsTty() {
- // The default command for *nix requires bash
- shell := "bash"
+ // The default command for *nix requires pipefail support
+ shell := "ash"
cmd := os.Getenv("FZF_DEFAULT_COMMAND")
if len(cmd) == 0 {
if defaultCommand != "" {
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