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hermetic_cc_toolchain/release

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#!/bin/bash
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set -xeuo pipefail
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_err(){ >&2 echo "ERROR: $*"; exit 1; }
git status --porcelain | grep -q "" &&
_err "working tree is dirty, commit your changes first."
[[ "$1" =~ ^v([0-9]+)\.([0-9]+)(\.([0-9]+))?(-rc([0-9]+))?$ ]] || \
_err "arg1 accepts the following formats: v1.0 v1.0.0 v1.0-rc1 v1.0.1-rc1"
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git tag | grep -q "^$1$" &&
_err "tag $1 already exists"
last_tag=$(git tag | tail -1)
{
echo bazel-zig-cc "$1"
echo
echo Changelog since "$last_tag":
git log --pretty=format:"- [%cn] %s" "$last_tag"..HEAD
} | git tag -u motiejus@jakstys.lt -F - "$1"
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shasum=$(git archive --prefix="bazel-zig-cc-$1/" --format=tar "$1" | \
gzip -n | sha256sum | cut -f1 -d" ")
./relnotes.awk -v tag="$1" -v sha256sum="$shasum" README.md | sponge README.md
git add README.md
git commit -m "Update release notes for $1"