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support/download/post-process-helpers: add helper function for post process scripts

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download post process scripts will often need to unpack the source
code tarball, do some operation, and then repack it. In order to help
with this, post-process-helpers provide an unpack() function and a
repack() function.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Thomas Petazzoni 2022-01-06 21:59:51 +01:00 committed by Yann E. MORIN
parent 2da7b07a22
commit 0f42d06ecf
1 changed files with 22 additions and 0 deletions
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22
support/download/helpers
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@ -72,5 +72,27 @@ mk_tar_gz() {
popd >/dev/null
}
post_process_unpack() {
local dest="${1}"
local tarball="${2}"
local one_file
mkdir "${dest}"
tar -C "${dest}" --strip-components=1 -xf "${tarball}"
one_file="$(find "${dest}" -type f -print0 |LC_ALL=C sort -z |head -z -n1 |tr -d "\0")"
touch -r "${one_file}" "${dest}.timestamp"
}
post_process_repack() {
local in_dir="${1}"
local base_dir="${2}"
local out="${3}"
local date
date="@$(stat -c '%Y' "${in_dir}/${base_dir}.timestamp")"
mk_tar_gz "${in_dir}/${base_dir}" "${base_dir}" "${date}" "${out}"
}
# Keep this line and the following as last lines in this file.
# vim: ft=bash