ebe6154ff4
When switching the git helper over to a shell script, a special case was not carried over: in case the remote has the required reference, we attempt a shallow clone, using --depth 1. However, this is not supported when the remote is accessed with the http protocol. Therefore, the download fails. What happened before the conversion to a shell script was that the helper in the Makefile would fallback to doing a full-clone. This is the case and behaviour that were lost in the conversion. To avoid making the script too complex, we only attempt a full clone if needed. And we decide that a full clone is needed by default; we decide it is unnecessary if the remote has the needed reference *and* the shallow clone was successful. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
61 lines
1.6 KiB
Bash
Executable File
61 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# We want to catch any command failure, and exit immediately
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set -e
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# Download helper for git
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# Call it with:
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# $1: git repo
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# $2: git cset
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# $3: package's basename (eg. foobar-1.2.3)
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# $4: output file
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# And this environment:
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# GIT : the git command to call
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# BUILD_DIR: path to Buildroot's build dir
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repo="${1}"
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cset="${2}"
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basename="${3}"
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output="${4}"
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repodir="${basename}.tmp-git-checkout"
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tmp_tar="$( mktemp "${BUILD_DIR}/.XXXXXX" )"
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tmp_output="$( mktemp "${output}.XXXXXX" )"
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# Play tic-tac-toe with temp files
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# - first, we download to a trashable location (the build-dir)
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# - then we create the uncomporessed tarball in tht same trashable location
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# - then we create a temporary compressed tarball in the final location, so
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# it is on the same filesystem as the final file
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# - finally, we atomically rename to the final file
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cd "${BUILD_DIR}"
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# Remove leftovers from a previous failed run
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rm -rf "${repodir}"
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git_done=0
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if [ -n "$(${GIT} ls-remote "${repo}" "${cset}" 2>&1)" ]; then
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printf "Doing shallow clone\n"
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if ${GIT} clone --depth 1 -b "${cset}" --bare "${repo}" "${repodir}"; then
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git_done=1
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fi
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fi
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if [ ${git_done} -eq 0 ]; then
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printf "Doing full clone\n"
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${GIT} clone --bare "${repo}" "${repodir}"
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fi
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ret=1
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pushd "${repodir}" >/dev/null
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if ${GIT} archive --prefix="${basename}/" -o "${tmp_tar}" \
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--format=tar "${cset}"; then
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if gzip -c "${tmp_tar}" >"${tmp_output}"; then
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mv "${tmp_output}" "${output}"
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ret=0
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fi
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fi
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popd >/dev/null
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rm -rf "${repodir}" "${tmp_tar}" "${tmp_output}"
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exit ${ret}
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