buildroot/support/download/git

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#!/bin/bash
# We want to catch any command failure, and exit immediately
set -e
# Download helper for git
# Call it with:
# $1: git repo
# $2: git cset
# $3: package's basename (eg. foobar-1.2.3)
# $4: output file
# And this environment:
# BR2_DL_DIR: path to Buildroot's download dir
# GIT : the git command to call
repo="${1}"
cset="${2}"
basename="${3}"
output="${4}"
repodir="${BR2_DL_DIR}/${basename}"
if [ -n "$(${GIT} ls-remote "${repo}" "${cset}" 2>&1)" ]; then
printf "Doing shallow clone\n"
${GIT} clone --depth 1 -b "${cset}" --bare "${repo}" "${repodir}"
else
printf "Doing full clone\n"
${GIT} clone --bare "${repo}" "${repodir}"
fi
pushd "${repodir}" >/dev/null
${GIT} archive --prefix="${basename}/" -o "${output}.tmp" --format=tar "${cset}"
gzip -c "${output}.tmp" >"${output}"
rm -f "${output}.tmp"
popd >/dev/null
rm -rf "${repodir}"