adds ability to specify user and password via env variables

man/nextcloudcmd.1.rst

@@ -43,6 +43,7 @@ OPTIONS
 
 ``—non-interactive``
        Do not prompt for questions.
+       Tries to read $NC_USER and $NC_PASSWORD from the environment.
 
 ``—silent``, ``—s``
        Inhibits verbose log output.

src/cmd/cmd.cpp

@@ -1,4 +1,4 @@
 /*
  * Copyright (C) by Olivier Goffart <[email protected]>
  * Copyright (C) by Klaas Freitag <[email protected]>
  * Copyright (C) by Daniel Heule <[email protected]>
@@ -14,9 +14,10 @@
  * for more details.
  */
 
+#include <cstdlib>
 #include <iostream>
 #include <random>
 #include <qcoreapplication.h>
 #include <QStringList>
 #include <QUrl>
 #include <QFile>
@@ -185,7 +186,7 @@
     std::cout << "  --user, -u [name]      Use [name] as the login name" << std::endl;
     std::cout << "  --password, -p [pass]  Use [pass] as password" << std::endl;
     std::cout << "  -n                     Use netrc (5) for login" << std::endl;
-    std::cout << "  --non-interactive      Do not block execution with interaction" << std::endl;
+    std::cout << "  --non-interactive      Do not block execution with interaction and tries to read $NC_USER and $NC_PASSWORD if not set by other means" << std::endl;
     std::cout << "  --max-sync-retries [n] Retries maximum n times (default to 3)" << std::endl;
     std::cout << "  --uplimit [n]          Limit the upload speed of files to n KB/s" << std::endl;
     std::cout << "  --downlimit [n]        Limit the download speed of files to n KB/s" << std::endl;
@@ -307,7 +308,7 @@
     }
 }
 
 int main(int argc, char **argv)
 {
 #ifdef Q_OS_WIN
     SetDllDirectory(L"");
@@ -359,6 +360,7 @@
     // 2. From options
     // 3. From netrc (if enabled)
     // 4. From prompt (if interactive)
+    // 5. From environment (if non-interactive)
 
     QString user = hostUrl.userName();
     QString password = hostUrl.password();
@@ -390,7 +392,15 @@
         if (password.isEmpty()) {
             password = queryPassword(user);
         }
+    } else {
+        if (user.isEmpty()) {
+            user = std::getenv("NC_USER");
+        }
+        if (password.isEmpty()) {
+            password = std::getenv("NC_PASSWORD");
+        }
     }
+
 
     // Find the folder and the original owncloud url