Get latest Decent Sampler release tarball URL automatically

selenium-scratchpad.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Get latest Decentsampler release - Selenium"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import natsort\n",
    "from selenium import webdriver\n",
    "from selenium.common.exceptions import NoSuchElementException, WebDriverException"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Start a webdriver\n",
    "try:\n",
    "    driver = webdriver.Firefox()\n",
    "except (FileNotFoundError, WebDriverException):\n",
    "    driver = webdriver.Firefox(\n",
    "        executable_path=os.path.expanduser(\n",
    "            r\"~/Miniconda3/envs/selenium/Scripts/geckodriver.exe\"\n",
    "        )\n",
    "    )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Go to the webpage representing the Dropbox folder\n",
    "DROPBOX_FOLDER_URL = (\n",
    "    \"https://www.dropbox.com/sh/dwyry6xpy5uut07/AABBJ84bjTTSQWzXGG5TOQpfa?dl=0\"\n",
    ")\n",
    "\n",
    "driver.get(DROPBOX_FOLDER_URL)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Now pick out all the links to the specific versions\n",
    "cells = driver.find_elements_by_css_selector(css_selector=\"td.mc-table-cell\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "def get_fname_and_link(cell):\n",
    "    \"\"\"\n",
    "    Easily get the filename and URL from a table cell.\n",
    "    \"\"\"\n",
    "\n",
    "    try:\n",
    "        fname_wrapper = cell.find_element_by_css_selector(\n",
    "            css_selector=\"div.mc-media-cell-content > div.mc-media-cell-text\"\n",
    "        )\n",
    "        fname = fname_wrapper.text\n",
    "        link_wrapper = cell.find_element_by_css_selector(\"a\")\n",
    "        url = link_wrapper.get_attribute(\"href\")\n",
    "        return {\"name\": fname, \"url\": url}\n",
    "    except NoSuchElementException:\n",
    "        return None"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "file_listing = list(filter(lambda x: x, [get_fname_and_link(cell) for cell in cells]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "most_recent_version = natsort.natsorted(seq=file_listing, key=lambda x: x[\"name\"])[-1]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "most_recent_version"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "driver.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python [conda env:selenium]",
   "language": "python",
   "name": "selenium"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.7.6"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}

Then most_recent_version will look something like

{"name": "Decent_Sampler-1.7.6-Linux-x86_64.tar.gz",
 "url": "https://www.dropbox.com/sh/dwyry6xpy5uut07/AAAXumqEafABDswXGjL0BjLYa/Decent_Sampler-1.7.6-Linux-x86_64.tar.gz?dl=0"}