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Stop calculating so many individual GitCommit values #131

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Merged
merged 1 commit into from
Nov 20, 2025
Merged

Stop calculating so many individual GitCommit values #131

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44 changes: 7 additions & 37 deletions generate-stackbrew-library.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,36 +4,16 @@ set -eu
self="$(basename "$BASH_SOURCE")"
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"

# get the most recent commit which modified any of "$@"
fileCommit() {
git log -1 --format='format:%H' HEAD -- "$@"
}

# get the most recent commit which modified "$1/Dockerfile" or any file COPY'd from "$1/Dockerfile"
dirCommit() {
local dir="$1"; shift
(
cd "$dir"
fileCommit \
Dockerfile \
$(git show HEAD:./Dockerfile | awk '
toupper($1) == "COPY" {
for (i = 2; i < NF; i++) {
print $i
}
}
')
)
}
commit="$(git log -1 --format='format:%H' HEAD -- '[^.]*/**')"

generateCommit="$(fileCommit "$self")"
selfCommit="$(git log -1 --format='format:%H' HEAD -- "$self")"
cat <<-EOH
# this file is generated via https://github.com/docker-library/hello-world/blob/$generateCommit/$self
# this file is generated via https://github.com/docker-library/hello-world/blob/$selfCommit/$self

Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/hello-world.git
GitCommit: $generateCommit
GitCommit: $commit
EOH

# prints "$2$1$3$1...$N"
Expand All @@ -53,11 +33,7 @@ cat <<-EOE
Architectures: $(join ', ' "${arches[@]}")
EOE
for arch in "${arches[@]}"; do
commit="$(dirCommit "$arch")"
cat <<-EOE
$arch-GitCommit: $commit
$arch-Directory: $arch
EOE
echo "$arch-Directory: $arch"
done

for winVariant in \
Expand All @@ -75,14 +51,8 @@ for winVariant in \
Architectures: $(join ', ' "${winArches[@]/#/windows-}")
EOE
for arch in "${winArches[@]}"; do
commit="$(dirCommit "$arch/$winVariant")"
cat <<-EOE
windows-$arch-GitCommit: $commit
windows-$arch-Directory: $arch/$winVariant
EOE
echo "windows-$arch-Directory: $arch/$winVariant"
done
cat <<-EOE
Constraints: $winVariant
EOE
echo "Constraints: $winVariant"
fi
done
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