From 395f25997880eb53ded2c78f56c709354f95a4c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Gross?= <renard@users.noreply.github.com>
Date: Thu, 7 May 2020 12:02:52 +0200
Subject: [PATCH] cmd: when running  --password-command allow use of stdin
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Bind rclone standard input to password command's standard input. This
allows to provide password from a pipe and collect it using cat.

The typical use case is when rclone is on a remote server with an
encrypted configuration. This solved the environment variable
issue (#3368) and the password storage on remote host.

Now the following chain is allowed:

    echo 'secret' | ssh host.example.com \
       sudo -u rclone \
       rclone --config /path/to/rclone.conf \
       --password-command 'cat' ls remote:

Signed-off-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>

Co-authored-by: Sébastien Gross <seb•ɑƬ•chezwam•ɖɵʈ•org>
---
 fs/config/config.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/config/config.go b/fs/config/config.go
index 53d67ef03..fcc42b097 100644
--- a/fs/config/config.go
+++ b/fs/config/config.go
@@ -282,6 +282,7 @@ func loadConfigFile() (*goconfig.ConfigFile, error) {
 
 			cmd.Stdout = &stdout
 			cmd.Stderr = &stderr
+			cmd.Stdin = os.Stdin
 
 			if err := cmd.Run(); err != nil {
 				// One does not always get the stderr returned in the wrapped error.