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#!/bin/bash
# * change-description REPO DESCRIPTION
# Change the project description
# Example: change-description packages/libretools "Tools for working on Parabola"
set -e
repo=$1; shift
repo="$(sed -r 's,^/*,,' <<<"$repo")"
_repo="$(sed -r -e '/(^|\/)\.\.($|\/)/d' -e "s,[^A-Za-z0-9\./_~-],,g" <<<"$repo")"
test "$repo" = "$_repo" || { printf 'Illegal name: %s\n' "${repo}"; exit 1; }
if test -d "$repo".git; then
echo "${*}" > "${repo}".git/description
else
printf 'Does not exist: %s\n' "${repo}"
exit 1
fi
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