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From 0a2f7b1779ddcac1c4e79aa58212c7ee528ac6e1 Mon Sep 17 00:00:00 2001
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From: Kairui Song <kasong@redhat.com>
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Date: Mon, 15 Feb 2021 23:15:26 +0800
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Subject: [PATCH] feat: squash module follow --compress option
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Try to make mksquashfs follow --compress option if squash module is
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included, if not specified or invalid, fall back to use mksquashfs's
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default compressor.
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(cherry picked from commit 5d05ffbd87bc27e27f517ebc3454d50729c687e6)
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Cherry-picked from: 5d05ffbd
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Resolves: #1959336
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---
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dracut.sh | 17 ++++++++++++++---
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1 file changed, 14 insertions(+), 3 deletions(-)
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diff --git a/dracut.sh b/dracut.sh
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index b403f401..d9a66c5a 100755
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--- a/dracut.sh
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+++ b/dracut.sh
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@@ -1781,14 +1781,25 @@ fi
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if dracut_module_included "squash"; then
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dinfo "*** Squashing the files inside the initramfs ***"
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- mksquashfs $squash_dir $squash_img -no-xattrs -no-exports -noappend -always-use-fragments -comp xz -Xdict-size 100% -no-progress 1> /dev/null
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+ declare squash_compress_arg
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+ # shellcheck disable=SC2086
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+ if [[ $compress ]]; then
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+ if ! mksquashfs /dev/null "$DRACUT_TMPDIR"/.squash-test.img -no-progress -comp $compress &>/dev/null; then
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+ dwarn "mksquashfs doesn't support compressor '$compress', failing back to default compressor."
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+ else
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+ squash_compress_arg="$compress"
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+ fi
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+ fi
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- if [[ $? != 0 ]]; then
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+ # shellcheck disable=SC2086
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+ if ! mksquashfs "$squash_dir" "$squash_img" \
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+ -no-xattrs -no-exports -noappend -no-recovery -always-use-fragments \
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+ -no-progress ${squash_compress_arg:+-comp $squash_compress_arg} 1> /dev/null; then
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dfatal "dracut: Failed making squash image"
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exit 1
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fi
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- rm -rf $squash_dir
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+ rm -rf "$squash_dir"
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dinfo "*** Squashing the files inside the initramfs done ***"
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fi
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