feat(prog/xmonad/xmobar): add exchangerate.host api

... and use it by default

programs/xmonad/xmobar/scripts/cbr.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-
-set -e
-
-today=$(date +%d/%m/%Y)
-prev_week=$(date +%d/%m/%Y -d '-7 day')
-
-usd=R01235
-
-cc=($(curl --no-progress-meter "https://www.cbr.ru/scripts/XML_dynamic.asp?date_req1=$prev_week&date_req2=$today&VAL_NM_RQ=$usd" | \
-  sed -e "s/<[A-Z]/\n\0/g" | \
-  grep Value | \
-  sed -e "s#<\/\?\w\+>##g" | \
-  sed -e "s/,/./g"))
-
-diff=$(echo ${cc[-1]} ${cc[-2]} | awk '{ print $1 - $2 }')
-arror="↑"
-color='#50fa7b'
-if [ ${diff:0:1} == '-' ]; then
-  diff=${diff:1}
-  arror="↓"
-  color='#ff5555'
-fi
-
-echo "${cc[-1]} (<fc=${color}>${arror}<hspace=3/>${diff}</fc>)"
-
-exit 0
-

programs/xmonad/xmobar/scripts/exchangerate.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+set -e
+
+curl_cbr () {
+  local today=$(date +%d/%m/%Y)
+  local prev_week=$(date +%d/%m/%Y -d '-7 day')
+  local usd=R01235
+
+  curl --no-progress-meter "https://www.cbr.ru/scripts/XML_dynamic.asp?date_req1=$prev_week&date_req2=$today&VAL_NM_RQ=$usd" | \
+    sed -e "s/<[A-Z]/\n\0/g" | \
+    grep Value | \
+    sed -e "s#<\/\?\w\+>##g" | \
+    sed -e "s/,/./g"
+}
+
+curl_exchangerate () {
+  local start_date=$(date +%Y-%m-%d -d '-1 day')
+  local end_date=$(date +%Y-%m-%d)
+
+  curl --no-progress-meter -X GET "https://api.exchangerate.host/timeseries?start_date=$start_date&end_date=$end_date&base=USD&symbols=RUB&places=4&format=xml" | \
+    sed -e "s/<[a-z]/\n\0/g" | \
+    grep rate | \
+    sed -e "s#<\/\?\w\+>##g"
+}
+
+cc=($(curl_exchangerate))
+
+diff=$(echo ${cc[-1]} ${cc[-2]} | awk '{ print $1 - $2 }')
+arror="↑"
+color='#50fa7b'
+if [ ${diff:0:1} == '-' ]; then
+  diff=${diff:1}
+  arror="↓"
+  color='#ff5555'
+fi
+
+echo "${cc[-1]} (<fc=${color}>${arror}<hspace=3/>${diff}</fc>)"
+
+exit 0
+

programs/xmonad/xmobar/src/xmobar.hs

@@ -84,7 +84,7 @@ myCommands =
         ]
         (10 `seconds`)
   , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/get_volume.sh"] "N/A" "volume" 1
-  , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/cbr.sh"] "N/A" "usdrub" (60 `seconds`)
+  , Run $ ComX "/bin/bash" ["-c", "~/.config/xmobar/scripts/exchangerate.sh"] "N/A" "usdrub" (60 `seconds`)
   , Run XMonadLog
   ]
   where