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add git --before option #152

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add git --before option #152

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d445ea5
add --before feature
matthiasdiener Sep 15, 2022
3290e02
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matthiasdiener Sep 15, 2022
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22 changes: 22 additions & 0 deletions install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,11 @@ if ! command -v mpicc &> /dev/null ;then
exit 2
fi

function version
{
echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }';
}


usage()
{
Expand All @@ -32,6 +37,7 @@ usage()
echo " --git-ssh Use SSH-based URL to clone mirgecom."
echo " --debug Show debugging output of this script (set -x)."
echo " --skip-clone Skip cloning mirgecom, assume it will be manually copied."
echo " --before=DATE Check out a specific version of the branch before DATE (in the form yyyy-mm-dd)."
echo " --help Print this help text."
}

Expand Down Expand Up @@ -59,6 +65,9 @@ opt_git_ssh=0
# Skip cloning mirgecom
opt_skip_clone=0

# Check out version of the branch before a certain date
opt_before_date=

while [[ $# -gt 0 ]]; do
arg=$1
shift
Expand Down Expand Up @@ -110,6 +119,9 @@ while [[ $# -gt 0 ]]; do
--skip-clone)
opt_skip_clone=1
;;
--before=*)
opt_before_date=${arg#*=}
;;
--help)
usage
exit 0
Expand Down Expand Up @@ -155,6 +167,16 @@ if [[ $opt_skip_clone -eq 0 ]]; then
fi
fi

if [[ -n $opt_before_date ]]; then
if [[ $(version "$(git --version | awk '{print $3}')") -ge $(version "2.23.0") ]]; then
echo "Your git version is too old for the --before option, please upgrade to 2.23 or newer."
exit 4
fi
git checkout "$(git rev-list -n1 --before=$opt_before_date $mcbranch)"
# Maybe use https://github.com/astrofrog/pypi-timemachine for pip.
# What to do with conda?
fi

echo "==== Create $env_name conda environment"

[[ -z $conda_env_file ]] && conda_env_file="$mcsrc/conda-env.yml"
Expand Down