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perf(changelog): use a single git log command to get all commit messages

This commit is contained in:
Marc Cornellà 2021-10-26 18:24:29 +02:00
parent 4f67b02a9f
commit 9c8131e417
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@ -1,5 +1,8 @@
#!/usr/bin/env zsh
cd "$ZSH"
setopt extendedglob
##############################
# CHANGELOG SCRIPT CONSTANTS #
##############################
@ -114,15 +117,8 @@ function parse-commit {
fi
}
# Ignore commit if it is a merge commit
if [[ $(command git show -s --format=%p $1 | wc -w) -gt 1 ]]; then
return
fi
# Parse commit with hash $1
local hash="$1" subject body warning rhash
subject="$(command git show -s --format=%s $hash)"
body="$(command git show -s --format=%b $hash)"
local hash="$1" subject="$2" body="$3" warning rhash
# Commits following Conventional Commits (https://www.conventionalcommits.org/)
# have the following format, where parts between [] are optional:
@ -384,7 +380,8 @@ function main {
# Commit classification arrays
local -A commits subjects scopes breaking reverts
local truncate=0 read_commits=0
local hash version tag
local version tag
local hash refs subject body
# Get the first version name:
# 1) try tag-like version, or
@ -396,17 +393,40 @@ function main {
|| version=$(command git symbolic-ref --quiet --short $until 2>/dev/null) \
|| version=$(command git rev-parse --short $until 2>/dev/null)
# Get commit list from $until commit until $since commit, or until root
# commit if $since is unset, in short hash form.
command git rev-list --abbrev-commit --abbrev=7 ${since:+$since..}$until | while read hash; do
# Get commit list from $until commit until $since commit, or until root commit if $since is unset
local range=${since:+$since..}$until
# Git log options
# -z: commits are delimited by null bytes
# --format: [7-char hash]<field sep>[ref names]<field sep>[subject]<field sep>[body]
# --abbrev=7: force commit hashes to be 7 characters long
# --no-merges: merge commits are omitted
local SEP="0mZmAgIcSeP"
local -a raw_commits
raw_commits=(${(0)"$(command git log -z \
--format="%h${SEP}%D${SEP}%s${SEP}%b" --abbrev=7 \
--no-merges $range)"})
local raw_commit
local -a raw_fields
for raw_commit in $raw_commits; do
# Truncate list on versions with a lot of commits
if (( ++read_commits > 40 )); then
truncate=1
break
fi
# Read the commit fields (@ is needed to keep empty values)
raw_fields=("${(@ps:$SEP:)raw_commit}")
hash="${raw_fields[1]}"
refs="${raw_fields[2]}"
subject="${raw_fields[3]}"
body="${raw_fields[4]}"
# If we find a new release (exact tag)
if tag=$(command git describe --exact-match --tags $hash 2>/dev/null); then
if [[ "$refs" = *tag:\ * ]]; then
# Parse tag name (needs: setopt extendedglob)
tag="${${refs##*tag: }%%,# *}"
# Output previous release
display-release
# Reinitialize commit storage
@ -420,7 +440,7 @@ function main {
read_commits=1
fi
parse-commit "$hash"
parse-commit "$hash" "$subject" "$body"
done
display-release
@ -431,8 +451,6 @@ function main {
fi
}
cd "$ZSH"
# Use raw output if stdout is not a tty
if [[ ! -t 1 && -z "$3" ]]; then
main "$1" "$2" --raw