From c5585f4edf58c152e04dfd223571c384d996e1b3 Mon Sep 17 00:00:00 2001
From: "Hahn Axel (hahn)" <axel.hahn@unibe.ch>
Date: Tue, 18 Feb 2025 16:45:32 +0100
Subject: [PATCH] add env_init script
---
shellscripts/env_init.sh | 109 ++++++++++++++++++++++++++++++
shellscripts/env_init.sh.cfg.dist | 11 +++
2 files changed, 120 insertions(+)
create mode 100755 shellscripts/env_init.sh
create mode 100644 shellscripts/env_init.sh.cfg.dist
diff --git a/shellscripts/env_init.sh b/shellscripts/env_init.sh
new file mode 100755
index 00000000..2449d990
--- /dev/null
+++ b/shellscripts/env_init.sh
@@ -0,0 +1,109 @@
+#!/bin/bash
+# ======================================================================
+#
+# ENV INIT
+#
+# This is a helper tool for build processes with java and maven.
+# It sets a custom java and maven version
+#
+# ----------------------------------------------------------------------
+# 2024-02-18 first lines <axel.hahn@unibe.ch>
+# ======================================================================
+
+cd "$( dirname "$0")" || exit 1
+
+typeset -A aJava
+typeset -A aMaven
+
+USAGE="
+This is a helper script to set the shell environment
+for a wanted version of java and maven.
+
+SYNTAX: source $0 [options]
+
+OPTIONS:
+ -j|--java <version> Set Java version
+ -m|--maven <version> Set Maven version
+ -h|--help Show this help
+"
+
+
+if [ "$#" -eq 0 ]; then
+ echo "ERROR: parameter required. Use -h for help."
+ exit 2
+fi
+
+. "env_init.sh.cfg" || exit 3
+
+# ----------------------------------------------------------------------
+
+while [[ "$#" -gt 0 ]]; do case $1 in
+
+ -h|--help)
+ echo "$USAGE";
+ echo "Java versions:"
+ for v in "${!aJava[@]}"
+ do
+ echo " $v ... ${aJava[$v]}"
+ done
+ echo
+ echo "Maven versions:"
+ for v in "${!aMaven[@]}"
+ do
+ echo " $v ... ${aMaven[$v]}"
+ done
+ echo
+ exit 0
+ ;;
+
+ -j|--java)
+ if [ -z "${aJava[$2]}" ]; then
+ echo "ERROR: java version $2 is unknown on this system"
+ exit 4
+ fi
+ if [ ! -x "${aJava[$2]}/bin/java" ]; then
+ echo "ERROR: Path for java version $2 is wrong - ${aJava[$2]}/bin/java not executable"
+ exit 5
+ fi
+ echo ">>> Set JAVA version $2"
+ export JAVA_HOME="${aJava[$2]}"
+ export PATH="${aJava[$2]}/bin:${PATH}"
+
+ echo "\$ java --version"
+ java --version
+ echo
+ shift; shift;
+ ;;
+
+ -m|--maven)
+ if [ -z "${aMaven[$2]}" ]; then
+ echo "ERROR: maven version $2 is unknown on this system"
+ exit 6
+ fi
+ if [ ! -x "${aMaven[$2]}/bin/mvn" ]; then
+ echo "ERROR: Path for mvn version $2 is wrong - ${aMaven[$2]}/bin/mvn not executable"
+ exit 7
+ fi
+ echo ">>> Set maven version $2"
+ export PATH="${aMaven[$2]}/bin:${PATH}"
+
+ echo "\$ mvn --version"
+ mvn --version
+ echo
+ shift; shift;
+ ;;
+
+ *) if grep "^-" <<< "$1" >/dev/null ; then
+ echo; echo "ERROR: Unknown parameter: $1"; echo "Use -h for help."; exit 8
+ fi
+ break;
+ ;;
+
+esac; done
+
+if [ -n "$*" ]; then
+ echo "ERROR: No parameter supported. Use -h for help."
+ exit 9
+fi
+
+# ----------------------------------------------------------------------
diff --git a/shellscripts/env_init.sh.cfg.dist b/shellscripts/env_init.sh.cfg.dist
new file mode 100644
index 00000000..1e3a8de7
--- /dev/null
+++ b/shellscripts/env_init.sh.cfg.dist
@@ -0,0 +1,11 @@
+# -----------------------------------------------------------------------------
+# known java versions
+aJava[21]="/usr/lib/jvm/java-21-openjdk"
+aJava[23]="/usr/lib/jvm/java-23-openjdk"
+
+# -----------------------------------------------------------------------------
+# known maven versions
+aMaven["3.9.8"]="/opt/apache-maven-3.9.8"
+aMaven["3.9.9"]="/opt/apache-maven-3.9.9"
+
+# -----------------------------------------------------------------------------
--
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