mirror of
https://github.com/netdata/libbpf.git
synced 2026-03-26 11:19:06 +08:00
c57be0b4d6
Attempt to first fetch bpf-next tree from a snapshot, falling back to shallow clone, and if that is not enough, doing a full bpf-next clone. This should both improve a speed and (because of full clone fallback) improve test reliability if libbpf wasn't synced in a while. Signed-off-by: Andrii Nakryiko <andriin@fb.com>
39 lines
1.0 KiB
Bash
Executable File
39 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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set -eux
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CWD=$(pwd)
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LIBBPF_PATH=$(pwd)
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REPO_PATH=$1
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BPF_NEXT_ORIGIN=https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
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LINUX_SHA=$(cat ${LIBBPF_PATH}/CHECKPOINT-COMMIT)
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SNAPSHOT_URL=https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/snapshot/bpf-next-${LINUX_SHA}.tar.gz
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echo REPO_PATH = ${REPO_PATH}
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echo LINUX_SHA = ${LINUX_SHA}
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if [ ! -d "${REPO_PATH}" ]; then
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mkdir -p $(dirname "${REPO_PATH}")
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cd $(dirname "${REPO_PATH}")
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# attempt to fetch desired bpf-next repo snapshot
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if wget ${SNAPSHOT_URL} ; then
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tar xf bpf-next-${LINUX_SHA}.tar.gz
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mv bpf-next-${LINUX_SHA} $(basename ${REPO_PATH})
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else
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# but fallback to git fetch approach if that fails
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mkdir -p ${REPO_PATH}
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cd ${REPO_PATH}
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git init
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git remote add bpf-next ${BPF_NEXT_ORIGIN}
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# try shallow clone first
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git fetch --depth 32 bpf-next
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# check if desired SHA exists
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if ! git cat-file -e ${LINUX_SHA}^{commit} ; then
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# if not, fetch all of bpf-next; slow and painful
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git fetch bpf-next
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fi
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git reset --hard ${LINUX_SHA}
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fi
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fi
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