Revert "[fix/enh] Rewrite of yunopaste CLI tool (#1667)"

This reverts commit 1927875924.

bin/yunopaste

@@ -1,34 +1,77 @@
-#!/usr/bin/env python3
+#!/bin/bash
 
-import sys
-import requests
-import json
+set -e
+set -u
 
-SERVER_URL = "https://paste.yunohost.org"
-TIMEOUT = 3
+PASTE_URL="https://paste.yunohost.org"
 
-def create_snippet(data):
-    try:
-        url = SERVER_URL + "/documents"
-        response = requests.post(url, data=data.encode('utf-8'), timeout=TIMEOUT)
-        response.raise_for_status()
-        dockey = json.loads(response.text)['key']
-        return SERVER_URL + "/raw/" + dockey
-    except requests.exceptions.RequestException as e:
-        print("\033[31mError: {}\033[0m".format(e))
-        sys.exit(1)
+_die() {
+  printf "Error: %s\n" "$*"
+  exit 1
+}
 
+check_dependencies() {
+  curl -V > /dev/null 2>&1 || _die "This script requires curl."
+}
 
-def main():
-    output = sys.stdin.read()
+paste_data() {
+  json=$(curl -X POST -s -d "$1" "${PASTE_URL}/documents")
+  [[ -z "$json" ]] && _die "Unable to post the data to the server."
 
-    if not output:
-        print("\033[31mError: No input received from stdin.\033[0m")
-        sys.exit(1)
+  key=$(echo "$json" \
+    | python3 -c 'import json,sys;o=json.load(sys.stdin);print(o["key"])' \
+        2>/dev/null)
+  [[ -z "$key" ]] && _die "Unable to parse the server response."
 
-    url = create_snippet(output)
+  echo "${PASTE_URL}/${key}"
+}
 
-    print("\033[32mURL: {}\033[0m".format(url))
+usage() {
+  printf "Usage: ${0} [OPTION]...
 
-if __name__ == "__main__":
-    main()
+Read from input stream and paste the data to the YunoHost
+Haste server.
+
+For example, to paste the output of the YunoHost diagnosis, you
+can simply execute the following:
+  yunohost diagnosis show | ${0}
+
+It will return the URL where you can access the pasted data.
+
+Options:
+  -h, --help   show this help message and exit
+"
+}
+
+main() {
+  # parse options
+  while (( ${#} )); do
+    case "${1}" in
+      --help|-h)
+        usage
+        exit 0
+        ;;
+      *)
+        echo "Unknown parameter detected: ${1}" >&2
+        echo >&2
+        usage >&2
+        exit 1
+        ;;
+    esac
+
+    shift 1
+  done
+
+  # check input stream
+  read -t 0 || {
+    echo -e "Invalid usage: No input is provided.\n" >&2
+    usage
+    exit 1
+  }
+
+  paste_data "$(cat)"
+}
+
+check_dependencies
+
+main "${@}"