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Stop a Git commit if a staged file contains the word "nocheckin".
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| #!/usr/bin/env bash | |
| # Stops the commit if the changes include the word `nocheckin`. | |
| if which tput >/dev/null 2>&1; then | |
| ncolors=$(tput colors) | |
| fi | |
| if [ -t 1 ] && [ -n "$ncolors" ] && [ "$ncolors" -ge 8 ]; then | |
| RED="$(tput setaf 1)" | |
| GREEN="$(tput setaf 2)" | |
| YELLOW="$(tput setaf 3)" | |
| BLUE="$(tput setaf 4)" | |
| MAGENTA="$(tput setaf 5)" | |
| CYAN="$(tput setaf 6)" | |
| BOLD="$(tput bold)" | |
| NORMAL="$(tput sgr0)" | |
| DIM="\e[2m" | |
| else | |
| RED="" | |
| GREEN="" | |
| YELLOW="" | |
| BLUE="" | |
| MAGENTA="" | |
| CYAN="" | |
| BOLD="" | |
| NORMAL="" | |
| fi | |
| printf "${BOLD}${YELLOW}Looking for 'nocheckin'${NORMAL}\n\n" | |
| change_set=$(git status -s | grep "^[MARCD]") | |
| file_types_to_check="\(.cpp\|.c\|.h\|.txt\|.md\|.js\|.cs\|.cshtml\|.config\|.variables\|.gl\|.keymap\|.sound_tweaks\)$" | |
| abort_commit=0 | |
| while IFS= read -r line | |
| do | |
| # It's a lot faster to use parameter expansion rather than `cut`. | |
| action="${line::1}" # Action is either one or two characters followed by N spaces, but we can work off the first character. | |
| change="${line:2}" # Skip action and strip all leading spaces. | |
| change="${change#"${change%%[![:space:]]*}"}" | |
| #echo "action: '$action' | change: '$change'" | |
| if [[ $action == "D" ]]; then | |
| continue | |
| elif [[ $action == "R" ]]; then | |
| # Extract the new filename. | |
| change=$(awk -F " -> " '{print $2}' <<< "$change") | |
| fi | |
| # Strip leading and trailing double quotes. This is faster than using sed like so: | |
| # filename=$(sed -e 's/^"//' -e 's/"$//' <<< "$change") | |
| filename="${change%\"}" | |
| filename="${filename#\"}" | |
| file_path="$(pwd)/${filename}" | |
| #echo "file path: $file_path" | |
| look_at_file=$(grep -e "$file_types_to_check" -i <<< "$filename") | |
| if [[ "$look_at_file" != "" ]]; then | |
| index=1 | |
| printf "${MAGENTA}==> ${NORMAL}${BOLD}${filename}${NORMAL}\n" | |
| errors=$(grep "nocheckin" "$file_path" >&1) | |
| if [[ "$errors" != "" ]]; then | |
| abort_commit=1 | |
| printf "${BOLD}${RED}$errors${NORMAL}\n" | |
| fi | |
| else | |
| printf "${MAGENTA}==> ${NORMAL}${DIM}$filename${NORMAL}\n" | |
| fi | |
| done <<< "$change_set" # Make the loop run in the main shell process so that we can modify the outside variables. | |
| if [[ $abort_commit -eq 1 ]]; then | |
| printf "\n${RED}${BOLD}Aborting!${NORMAL}\n" | |
| exit 1 | |
| else | |
| printf "\n${GREEN}${BOLD}All good!${NORMAL}\n" | |
| fi | |
| printf "\n" |
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