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| 1 | +#!/usr/bin/env bash |
| 2 | +# vim: et tw=0 sw=4 ts=4 |
| 3 | + |
| 4 | +REPOROOT=${REPOROOT:=https://github.com/deis/postgres} |
| 5 | +TYPES=${TYPES:=feat(;Features fix(;Fixes docs(;Documentation chore(;Maintenance} |
| 6 | + |
| 7 | +usage() { |
| 8 | + echo "Usage: $0 <from> [to] |
| 9 | +
|
| 10 | +The REPOROOT and TYPES variables may be used to customize what links are |
| 11 | +generated and what is scraped from the commit logs. Current settings are: |
| 12 | +
|
| 13 | + REPOROOT=$REPOROOT |
| 14 | + TYPES=$TYPES |
| 15 | +" |
| 16 | +} |
| 17 | + |
| 18 | +# Print the information scraped from git |
| 19 | +retrieve() { |
| 20 | + while read -r commit hash message; do |
| 21 | + # Extract the subsystem where type(subsystem): message |
| 22 | + SUBSYSTEM=$(echo "$message" | cut -d'(' -f2 | cut -d')' -f1 | sed 's/\*/\(all\)/g') |
| 23 | + # Extract the message where type(subsystem): message |
| 24 | + MESSAGE=$(echo "$message" | awk -F ")" '{ print $2}' | sed 's/://' | cut -f2- -d' ') |
| 25 | + # Generate a link to the full legal commit on GitHub |
| 26 | + LINK="$REPOROOT/commit/$hash" |
| 27 | + # Echo all this in a way that makes the commit hash and message a link |
| 28 | + # to the commit in markdown |
| 29 | + echo ' -' "[\`$commit\`]($LINK)" "$SUBSYSTEM": "$MESSAGE" |
| 30 | + done < <(git --no-pager log --oneline --merges --oneline --format="%h %H %b" --grep="$1" "$FROM".."$TO") |
| 31 | + # Scrape the information from git |
| 32 | +} |
| 33 | + |
| 34 | +# Wrap feature type and show its relevant commits |
| 35 | +subheading() { |
| 36 | + echo "#### $1" |
| 37 | + echo |
| 38 | + retrieve "$2" |
| 39 | + echo |
| 40 | +} |
| 41 | + |
| 42 | +main() { |
| 43 | + # Print usage summary if user didn't specify a beginning |
| 44 | + if [ -z "$1" ]; then |
| 45 | + usage |
| 46 | + exit 1 |
| 47 | + fi |
| 48 | + |
| 49 | + FROM=$1 |
| 50 | + TO=${2:-"HEAD"} |
| 51 | + |
| 52 | + printf "### %s -> %s\n\n" "$FROM" "$TO" |
| 53 | + |
| 54 | + # Iterate over the types of messages specified |
| 55 | + for LEGALTYPE in $TYPES; do |
| 56 | + SHORT=$(echo "$LEGALTYPE" | cut -f1 -d';') |
| 57 | + LONG=$(echo "$LEGALTYPE" | cut -f2 -d';') |
| 58 | + subheading "$LONG" "$SHORT" |
| 59 | + done |
| 60 | +} |
| 61 | + |
| 62 | +if [ $SHLVL -eq 2 ]; then |
| 63 | + # If this is being run as a command |
| 64 | + main "$@" |
| 65 | +else |
| 66 | + # Otherwise this is being sourced |
| 67 | + unset -f main |
| 68 | + unset -f usage |
| 69 | +fi |
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