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Remove Bash 4.0+ requirement to run prefetch.sh #205

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Merged
merged 1 commit into from
May 26, 2018
+5 −4
Merged

Remove Bash 4.0+ requirement to run prefetch.sh #205

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9 changes: 5 additions & 4 deletions docker/build_scripts/prefetch.sh
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
#!/bin/bash
# Prefetch tarballs so they don't need to be fetched in the container (which has
# very old tools). Requires Bash 4.0+, but this is not run inside the build context.
# very old tools).
#
# usage: prefetch.sh <output_dir> [name ...]
set -ex
Expand All @@ -15,9 +15,10 @@ MY_DIR=$(dirname "${BASH_SOURCE[0]}")
cd "$SOURCES"

for name in "$@"; do
root=${name^^}_ROOT
ext=${name^^}_EXTENSION
url=${name^^}_DOWNLOAD_URL
name_upper=$(echo "${name}" | tr [:lower:] [:upper:])
root=${name_upper}_ROOT
ext=${name_upper}_EXTENSION
url=${name_upper}_DOWNLOAD_URL
file=${!root}${!ext:-.tar.gz}
fetch_source $file ${!url}
done