From 8ed2bc026c225fe2e14d3fdacc15abcace2246d1 Mon Sep 17 00:00:00 2001
From: cmontemuino <1761056+cmontemuino@users.noreply.github.com>
Date: Fri, 1 Nov 2024 09:10:05 +0100
Subject: [PATCH] ci: harmonize amm-template.sh script with mill script

PROBLEM: `amm-template.sh` is downloading the ammnite executable into
`${HOME}/.ammnite/download`. It is not necessarily wrong, but does not
follow the same pattern as in `mill` script. Having an harmonized way to
keep downloaded data is always preferred.

SOLUTION: adopt the mechanism from `mill` script to download files,
which also takes into account the existence of `${XDG_CACHE_HOME}`
variable.

Signed-off-by: cmontemuino <1761056+cmontemuino@users.noreply.github.com>
---
 amm-template.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/amm-template.sh b/amm-template.sh
index 65613b8b1..a94a8fc6b 100755
--- a/amm-template.sh
+++ b/amm-template.sh
@@ -14,7 +14,11 @@ if [ -z "$SCALA_VERSION" ] ; then
   SCALA_VERSION=$DEFAULT_SCALA_VERSION
 fi
 
-AMM_DOWNLOAD_PATH="$HOME/.ammonite/download"
+if [ "x${XDG_CACHE_HOME}" != "x" ] ; then
+  AMM_DOWNLOAD_PATH="${XDG_CACHE_HOME}/ammonite/download"
+else
+  AMM_DOWNLOAD_PATH="${HOME}/.cache/ammonite/download"
+fi
 AMM_EXEC_PATH="${AMM_DOWNLOAD_PATH}/${AMM_VERSION}_$SCALA_VERSION"
 
 if [ ! -x "$AMM_EXEC_PATH" ] ; then