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Launch an R script using github actions
The easiest way to do that is to duplicate this repository on GitHub
GitHub - pixgarden/scrape-automation: Scrape automation demo for https://www.rforseo.com/
GitHub
Just push the "Fork" button to create your copy.
Let me explain how it works. It's basically all about two files:
sitemap_scraping.R
this is the classic R script. It reaches this website XML sitemap and counts the number of url submitted. It relies on
rvest package ( see article about rvest )1
#Load library
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library(tidyverse)
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library(rvest)
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# declare XML sitemap url
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url <- 'https://www.rforseo.com/sitemap.xml'
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# grab html
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url_html <- read_html(url)
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# Select all the <loc>'s
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# and count them
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nbr_url <- url_html %>%
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html_nodes("loc") %>%
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length()
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# create a new row of data, with todayd's date and urls number
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row <- data.frame(Sys.Date(), nbr_url)
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# append at the end of the csv the new data
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write_csv(row,paste0('data/xml_url_count.csv'),append = T)
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main.yml
This is where we are going to schedule the process.
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name: sitemap_scraping
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# Controls when the action will run.
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on:
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schedule:
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- cron: '0 13 * * *'
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jobs:
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autoscrape:
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# The type of runner that the job will run on
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runs-on: macos-latest
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# Load repo and install R
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steps:
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- uses: actions/checkout@master
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- uses: r-lib/actions/setup-r@master
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# Set-up R
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- name: Install packages
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run: |
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R -e 'install.packages("tidyverse")'
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R -e 'install.packages("rvest")'
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# Run R script
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- name: Scrape
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run: Rscript sitemap_scraping.R
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# Add new files in data folder, commit along with other modified files, push
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- name: Commit files
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run: |
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git config --local user.name actions-user
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git config --local user.email "[email protected]"
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git add data/*
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git commit -am "GH ACTION Headlines $(date)"
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git push origin main
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env:
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REPO_KEY: ${{secrets.GITHUB_TOKEN}}
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username: github-actions
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Parts you may want to modify are
- the execution frequency rule. It's the weird line with
cron.this one means " Runs at 13:00 UTC every day." here is the full syntax documentation. - If you are using packages, you need to ask Github to install them before running the script so be sure to include those on the list.
the resulting CSV is updated every day and can be scrape
scrape-automation/xml_url_count.csv at main · pixgarden/scrape-automation
GitHub
Last modified 8mo ago
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