From baabbe78b2a355d375b7ab5dc181a12b60fcd76e Mon Sep 17 00:00:00 2001
From: aristocratos <gnmjpl@gmail.com>
Date: Sun, 13 Feb 2022 00:33:20 +0100
Subject: [PATCH] Added: Toggle for showing free disk space for privileged or
 normal users

---
 src/btop_config.cpp        |  3 +++
 src/btop_menu.cpp          | 11 +++++++++--
 src/linux/btop_collect.cpp |  3 ++-
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/btop_config.cpp b/src/btop_config.cpp
index 1883dfa..c509a8a 100644
--- a/src/btop_config.cpp
+++ b/src/btop_config.cpp
@@ -151,6 +151,8 @@ namespace Config {
 
 		{"use_fstab", 			"#* Read disks list from /etc/fstab. This also disables only_physical."},
 
+		{"disk_free_priv",		"#* Set to true to show available disk space for privileged users."},
+
 		{"show_io_stat", 		"#* Toggles if io activity % (disk busy time) should be shown in regular disk usage view."},
 
 		{"io_mode", 			"#* Toggles io mode for disks, showing big graphs for disk read/write speeds."},
@@ -242,6 +244,7 @@ namespace Config {
 		{"show_battery", true},
 		{"vim_keys", false},
 		{"tty_mode", false},
+		{"disk_free_priv", false},
 		{"force_tty", false},
 		{"lowcolor", false},
 		{"show_detailed", false},
diff --git a/src/btop_menu.cpp b/src/btop_menu.cpp
index 3e212df..3eeedd8 100644
--- a/src/btop_menu.cpp
+++ b/src/btop_menu.cpp
@@ -464,12 +464,19 @@ namespace Menu {
 				"",
 				"True or False."},
 			{"use_fstab",
-				"Read disks list from /etc/fstab.",
-				"(Has no effect on macOS X)",
+				"(Linux) Read disks list from /etc/fstab.",
 				"",
 				"This also disables only_physical.",
 				"",
 				"True or False."},
+			{"disk_free_priv",
+				"(Linux) Type of available disk space.",
+				"",
+				"Set to true to show how much disk space is",
+				"available for privileged users.",
+				"",
+				"Set to false to show available for normal",
+				"users."},
 			{"disks_filter",
 				"Optional filter for shown disks.",
 				"",
diff --git a/src/linux/btop_collect.cpp b/src/linux/btop_collect.cpp
index 79a6eac..62ae505 100644
--- a/src/linux/btop_collect.cpp
+++ b/src/linux/btop_collect.cpp
@@ -817,6 +817,7 @@ namespace Mem {
 		//? Get disks stats
 		if (show_disks) {
 			double uptime = system_uptime();
+			auto free_priv = Config::getB("disk_free_priv");
 			try {
 				auto& disks_filter = Config::getS("disks_filter");
 				bool filter_exclude = false;
@@ -943,7 +944,7 @@ namespace Mem {
 						continue;
 					}
 					disk.total = vfs.f_blocks * vfs.f_frsize;
-					disk.free = vfs.f_bfree * vfs.f_frsize;
+					disk.free = (free_priv ? vfs.f_bfree : vfs.f_bavail) * vfs.f_frsize;
 					disk.used = disk.total - disk.free;
 					disk.used_percent = round((double)disk.used * 100 / disk.total);
 					disk.free_percent = 100 - disk.used_percent;