Merge pull request #581 from konimex/install_date

Install Date: Rewrite function

CHANGELOG.md

@@ -92,6 +92,7 @@ Neofetch now has an irc channel at `#neofetch` on Freenode. If you have any ques
 - Removed all `date` usage from `get_install_date()`.
 - Added a new function called `convert_time()` which takes the time stamped `ls` output and converts it to a pretty format. The function only uses bash so its much faster than calling `date`. This makes things simple and keeps the output consistent across all Operating Systems. Example: `2016-12-06 16:58:58.000000000` --> `Tue 06 Dec 2016 4:58 PM`
 - Added an option so users can choose between using 24-hour and 12-hour time format
+- `get_install_date()` will detect which `ls` program is being used instead of hardcoding them per OS.
 
 **Disk**<br \>
 

neofetch

@@ -1762,43 +1762,27 @@ get_users() {
 
 get_install_date() {
     case "$os" in
-        "Linux" | "iPhone OS")
-            install_date="$(ls -alct --full-time / | awk '/lost\+found|private/ {printf  $6 " " $7}')"
-        ;;
-
-        "Mac OS X")
-            install_date="$(ls -lUT /var/log/install.log | awk '{printf $9 " " $6 " " $7 " " $8}')"
-        ;;
-
+        "Linux" | "iPhone OS") install_file="/lost+found" ;;
+        "Mac OS X") install_file="/var/log/install.log" ;;
+        "Solaris") install_file="/var/sadm/system/logs/install_log" ;;
+        "Windows") install_file="/cygdrive/c/Windows/explorer.exe" ;;
+        "Haiku") install_file="/boot" ;;
         "BSD" | "MINIX")
             case "$kernel_name" in
-                "OpenBSD"* | "Bitrig"* | "MINIX")
-                    install_file="/"
-                ;;
-
-                "FreeBSD"*)
-                    install_file="/etc/hostid"
-                ;;
-
-                "NetBSD"* | "DragonFly"*)
-                    install_file="/etc/defaults/rc.conf"
-                ;;
+                "FreeBSD") install_file="/etc/hostid" ;;
+                "NetBSD" | "DragonFly"*) install_file="/etc/defaults/rc.conf" ;;
+                *) install_file="/" ;;
             esac
-
-            install_date="$(ls -alctT "$install_file" | awk '{printf $9 " " $6 " " $7 " " $8 " "}')"
-        ;;
-
-        "Windows")
-            install_date="$(ls -alct --full-time /cygdrive/c/Windows/explorer.exe | awk '{printf $8 " " $9}')"
-        ;;
-
-        "Solaris")
-            install_date="$(ls -alct --full-time /var/sadm/system/logs/install_log | awk '{printf $6 " " $7}')"
         ;;
+    esac
 
-        "Haiku")
-            install_date="$(ls -alctd --full-time /boot | awk '{printf $6 " " $7}')"
-        ;;
+    ls_prog="$(ls --version 2>&1)"
+    case "$ls_prog" in
+        *"BusyBox"*) install_date="$(ls -tdce "$install_file" | awk '{printf $10 " " $7 " " $8 " " $9}')" ;;
+        *"crtime"*) install_date="$(ls -tdcE "$install_file" | awk '{printf $6 " " $7}')" ;; # xpg4 (Solaris)
+        *"ACFHLRSZ"*) install_date="$(ls -dl "$install_file" | awk '{printf $6 " " $7}')" ;; # Toybox
+        *"GNU coreutils"*) install_date="$(ls -tcd --full-time "$install_file" | awk '{printf $6 " " $7}')" ;;
+        *) install_date="$(ls -dlctT "$install_file" | awk '{printf $9 " " $6 " "$7 " " $8}')" ;;
     esac
 
     install_date="${install_date//-/ }"