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September 2, 2017 15:36
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Read a .gitignore-like file with Bash
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| #!/bin/bash | |
| read_lines() { | |
| while IFS='' read -r line || [[ -n $line ]]; do | |
| if [ -z "${line// }" ] || [[ $line == "#"* ]]; then continue; fi | |
| echo "$line" | |
| done < "$1" | |
| } | |
| if [ -f "$1" ]; then read_lines "$@"; fi |
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IFS=''prevents leading/trailing whitespace from being trimmed[[ -n $line ]]prevents the last line from being ignored if it doesn't end with a\n[ -z "${line// }" ]trims whitespace before checking if the string is empty[[ $line == "#"* ]]looks for strings beginning with#