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29 lines
893 B
Bash
29 lines
893 B
Bash
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#!/bin/sh
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set -ue
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# Check if an application is on the PATH.
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# If it is not, return with non-zero.
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_is_dep_available() {
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command -v "$1" >/dev/null || (echo "$1 ${2:-was not found and is a required dependency}"; return 1)
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}
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if [ -z "${1:-}" ]; then
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# No specific dependency was found; let's just check for all required ones.
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_is_dep_available git
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_is_dep_available patch
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_is_dep_available mvn
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# Ensure we don't have a JAVA_HOME set first.
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# Maven should work fine without the JAVA_HOME var as long as the JDK is on the PATH.
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if [ -z "${JAVA_HOME:-}" ]; then
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_is_dep_available javac "was not found; you can download the JDK from https://adoptopenjdk.net/ or via your package manager"
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fi
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else
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# Require all dependencies provided.
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for dep in $@; do
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_is_dep_available "$dep"
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done
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fi
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# vim: set ff=unix autoindent ts=4 sw=4 tw=0 et :
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