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haosdent
38 lines
1.2 KiB
Bash
Executable File
38 lines
1.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Install a pinned protoc binary from upstream GitHub releases.
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#
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# Distro protobuf-compiler packages vary widely in version (e.g.
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# AlmaLinux/RHEL 8 ships protoc 3.5, predating the
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# --experimental_allow_proto3_optional flag the rust frontend's build.rs
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# passes), so we pin the protoc version here instead.
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#
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# Override the version via the PROTOC_VERSION env var.
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# Requires: curl, unzip, root privileges.
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if [[ $(id -u) -ne 0 ]]; then
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echo "Must be run as root" >&2
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exit 1
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fi
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VERSION="${PROTOC_VERSION:-34.2}"
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ARCH="$(uname -m)"
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case "${ARCH}" in
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# protoc release archives use "aarch_64" (with an underscore), not
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# "aarch64". Don't "fix" this.
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aarch64|arm64) URL_ARCH="aarch_64" ;;
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x86_64|amd64) URL_ARCH="x86_64" ;;
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*) echo "Unsupported arch for protoc binary: ${ARCH}" >&2; exit 1 ;;
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esac
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URL="https://github.com/protocolbuffers/protobuf/releases/download/v${VERSION}/protoc-${VERSION}-linux-${URL_ARCH}.zip"
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TMPDIR="$(mktemp -d)"
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trap 'rm -rf "${TMPDIR}"' EXIT
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echo "Downloading: ${URL}"
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curl -fsSL -o "${TMPDIR}/protoc.zip" "${URL}"
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unzip -q -o "${TMPDIR}/protoc.zip" -d /usr/local
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echo "Installed $(protoc --version)"
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