Initial commit

docs/rake_tasks/download_by_csv.md

@@ -0,0 +1,33 @@
+# download_by_csv
+
+`rake download_by_csv` allows you to download a list of files from a CSV using Wget.
+
+Please ensure you have Wget installed and available on your terminal!
+Check by typing `wget --version` in your terminal. 
+If you need to install on Windows, see [Add more to Git Bash](https://evanwill.github.io/_drafts/notes/gitbash-windows.html).
+
+Requirements:
+
+- wget
+
+Using defaults:
+
+- Create a CSV named "download.csv" with columns "url" (the full link to the objects you want to download) and "filename_new" (optional, the name you want to save/rename the downloaded objects as). Make sure it is UTF-8 (not from Excel). 
+- Put "download.csv" into the root of this repository (i.e. same place as the Rakefile).
+- Open terminal and type `rake download_by_csv`
+- Items included in the "download.csv" will be downloaded using wget, renamed, and output in new folder "download/".
+
+The options can be changed by passing arguments with the rake command.
+
+| option | description | default value |
+| --- | --- | --- |
+| csv_file | the filename of the CSV file used to rename | "download.csv" |
+| download_link | the column name that is the full link to the objects you want to download | "url" |
+| download_rename | the column name of the new filename for the downloads (optional, if you don't provide one, it will use what ever the url uses) | "filename_new" |
+| output_dir | the name of the new folder to download the files | "download/" |
+
+
+The order follows [:csv_file,:download_link,:download_rename,:output_dir].
+For example, 
+
+`rake download_by_csv["other_down.csv","item_link","new_name","download_folder"]`