Get the paths to files that have webpack compile errors

get_file_paths.sh

# Combined commands (See below for descriptions about what each one is doing): 
yarn run build | awk '$0~/ERROR in/' | sed -e 's/ERROR in //' -e 's/:[0-9]:[0-9]//' -e 's/:[0-9][0-9]:[0-9]//' -e 's/:[0-9][0-9]:[0-9][0-9]//' > file_paths.txt

# yarn run build > build_output.txt # Direct stdout to a file. yarn run build runs `webpack`
# awk '$0~/ERROR in/' build_output.txt > files_with_errors.txt # Get the lines that start with the string "ERROR in" and print them to the file, files_with_errors.txt
# sed -e 's/ERROR in //' -e 's/:[0-9]:[0-9]//' -e 's/:[0-9][0-9]:[0-9]//' -e 's/:[0-9][0-9]:[0-9][0-9]//' files_with_errors.txt > paths_without_line_numbers.txt # Find and replace instances of "ERROR in " with nothing, run several matchers to remove trailing line and column numbers on the path strings that take like something like "/path/to/some/file.ts:10:11".

jscodeshift.sh

# Run a transform on all the files that have been listed in paths_without_line_numbers.txt after running the script above.
# This runs a transform using jscodeshift. Docs: https://github.com/facebook/jscodeshift
jscodeshift --stdin < ./paths_without_line_numbers.txt