winetricks: add "--country=" option and support config file "${WINETR…

…ICKS_CONFIG}/country"

This option and config file allow users to specify their own location and
prevent access to ipinfo.io when retrying downloads.

The content of ${WINETRICKS_CONFIG}/country needs to be your country code.

e.g. If you're in Russia:

(Linux)
echo "RU" > "${XDG_CONFIG_HOME:-$HOME/.config}"/winetricks/country

(Mac)
echo "RU" > "${XDG_CONFIG_HOME:-$HOME/Library/Preferences}"/winetricks/country

Fixes #914

src/winetricks

@@ -4951,6 +4951,11 @@ winetricks_init()
     WINETRICKS_CONFIG="${XDG_CONFIG_HOME}/winetricks"
     #test -d "$WINETRICKS_CONFIG" || mkdir -p "$WINETRICKS_CONFIG"
 
+    # Load country code from config file only when "--country=" option is not specified
+    if test -z "$W_COUNTRY" -a -f "${WINETRICKS_CONFIG}"/country; then
+        W_COUNTRY="$(cat "${WINETRICKS_CONFIG}"/country)"
+    fi
+
     # Pin a task to a single cpu. Helps prevent race conditions.
     #
     # Linux/FreeBSD: supported
@@ -5129,6 +5134,7 @@ Usage: $0 [options] [command|verb|path-to-verb] ...
 Executes given verbs.  Each verb installs an application or changes a setting.
 
 Options:
+    --country=CC      Set country code to CC and don't detect your IP address
     --force           Don't check whether packages were already installed
     --gui             Show gui diagnostics even when driven by commandline
     --isolate         Install each app or game in its own bottle (WINEPREFIX)
@@ -5166,6 +5172,7 @@ _EOF_
 winetricks_handle_option()
 {
     case "$1" in
+        --country=*) W_COUNTRY="${1##--country=}" ;;
         --force) WINETRICKS_FORCE=1;;
         --gui) winetricks_detect_gui;;
         -h|--help) winetricks_usage ; exit 0 ;;

src/winetricks.1

@@ -22,6 +22,11 @@ with no arguments displays a GUI using either Zenity or Kdialog.
 .SH OPTIONS
 .TP
 .B
+\-\-country=CC
+Set country code to CC and don't detect your IP address
+when retrying downloads
+.TP
+.B
 \-\-force
 Don't check whether packages were already installed
 .TP