44 lines
1.1 KiB
Bash
44 lines
1.1 KiB
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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IFS=$'\n\t'
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# This file can only be sourced, not executed directly.
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if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
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echo "This script is intended to be sourced, not executed directly." >&2
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exit 1
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fi
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function validate_version_format() {
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local v="$1"
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[[ "$v" =~ ^v?[0-9]+\.[0-9]+\.[0-9]+$ ]]
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}
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function get_latest_version() {
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local json version
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json="$(curl -fsSL https://api.github.com/repos/Psiphon-Labs/psiphon-tunnel-core/releases/latest)"
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if command -v jq >/dev/null 2>&1; then
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version="$(printf '%s' "$json" | jq -r .tag_name)"
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else
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version="$(printf '%s' "$json" \
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| grep -m1 '"tag_name":' \
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| sed -E 's/.*"tag_name": ?"([^"]+)".*/\1/')"
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fi
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if ! validate_version_format "$version"; then
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echo "I tried to get the latest version of Psiphon without jq but it didn't work." >&2
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echo "Please install jq or specify the version manually." >&2
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exit 1
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fi
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printf '%s\n' "$version"
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}
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function normalize_version() {
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local v="$1"
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if [[ "$v" =~ ^v ]]; then
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echo "$v"
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else
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echo "v$v"
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fi
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}
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