Verified Commit d47ca225 authored by hashworks's avatar hashworks
Browse files

Replace xz with zstd

Closes #63.

Using `zstd -T0 -8` instead of `gz -T0 -9` results in a larger rootfs
file, but requires significantly less time and memory:


zstd  -3 115M   1.60user 0.18system 0:00.32elapsed 557%CPU (0avgtext+0avgdata  130212maxresident)k
zstd  -6 107M   5.03user 0.24system 0:00.72elapsed 729%CPU (0avgtext+0avgdata  149660maxresident)k
zstd  -7 106M   7.33user 0.29system 0:01.04elapsed 728%CPU (0avgtext+0avgdata  174368maxresident)k
zstd  -8 105M   8.45user 0.27system 0:01.23elapsed 707%CPU (0avgtext+0avgdata  173008maxresident)k
zstd  -9 104M   9.35user 0.37system 0:01.42elapsed 683%CPU (0avgtext+0avgdata  335920maxresident)k
zstd -13 104M  30.57user 0.31system 0:04.76elapsed 648%CPU (0avgtext+0avgdata  498740maxresident)k
zstd -19  91M 132.06user 0.53system 0:21.98elapsed 603%CPU (0avgtext+0avgdata 1106328maxresident)k
xz    -9  81M 105.71user 0.58system 0:58.24elapsed 182%CPU (0avgtext+0avgdata 2006964maxresident)k

Additionally this drops bash from the build Dockerfile, since `SHELL` is
not OCI compliant.
parent 30d0b5b1
......@@ -10,11 +10,13 @@
# allow us to automate the releaes process.
FROM alpine:3.12 AS verify
RUN apk add --no-cache curl bash
SHELL ["/bin/bash", "-c"]
RUN apk add --no-cache curl tar zstd
sha256sum -c <<< "TEMPLATE_ROOTFS_HASH" && \
echo "TEMPLATE_ROOTFS_HASH" > /tmp/rootfs.tar.sha256 && \
cat /tmp/rootfs.tar.sha256 && \
sha256sum -c /tmp/rootfs.tar.sha256 && \
mkdir /rootfs && \
tar -C /rootfs --extract --file "${ROOTFS}"
......@@ -18,7 +18,7 @@ define rootfs
cp --recursive --preserve=timestamps --backup --suffix=.pacnew rootfs/* $(BUILDDIR)/
fakechroot -- fakeroot -- chroot $(BUILDDIR) update-ca-trust
fakechroot -- fakeroot -- chroot $(BUILDDIR) update-ca-trust
fakechroot -- fakeroot -- chroot $(BUILDDIR) locale-gen
fakechroot -- fakeroot -- chroot $(BUILDDIR) sh -c 'pacman-key --init && pacman-key --populate archlinux && bash -c "rm -rf etc/pacman.d/gnupg/{openpgp-revocs.d/,private-keys-v1.d/,pubring.gpg~,gnupg.S.}*"'
......@@ -34,14 +34,14 @@ fakechroot -- fakeroot -- chroot $(BUILDDIR) update-ca-trust
# fixes #22
fakeroot -- tar --numeric-owner --xattrs --acls --exclude-from=exclude -C $(BUILDDIR) -c . -f $(OUTPUTDIR)/$(1).tar
cd $(OUTPUTDIR); xz -9 -T0 -f $(1).tar; sha256sum $(1).tar.xz > $(1).tar.xz.SHA256
cd $(OUTPUTDIR); zstd -T0 -8 $(1).tar; sha256sum $(1).tar.zst > $(1).tar.zst.SHA256
define dockerfile
sed -e "s|TEMPLATE_ROOTFS_FILE|$(1).tar.xz|" \
sed -e "s|TEMPLATE_ROOTFS_FILE|$(1).tar.zst|" \
-e "s|TEMPLATE_ROOTFS_DOWNLOAD|ROOTFS=\"$(1).tar.xz\"|" \
-e "s|TEMPLATE_ROOTFS_HASH|$$(cat $(OUTPUTDIR)/$(1).tar.xz.SHA256)|" \
-e "s|TEMPLATE_ROOTFS_DOWNLOAD|ROOTFS=\"$(1).tar.zst\"|" \
-e "s|TEMPLATE_ROOTFS_HASH|$$(cat $(OUTPUTDIR)/$(1).tar.zst.SHA256)|" \
Dockerfile.template > $(OUTPUTDIR)/Dockerfile.$(1)
......@@ -49,16 +49,16 @@ endef
$(call rootfs,base,base)
$(call rootfs,base-devel,base base-devel)
$(OUTPUTDIR)/Dockerfile.base: $(OUTPUTDIR)/base.tar.xz
$(OUTPUTDIR)/Dockerfile.base: $(OUTPUTDIR)/base.tar.zst
$(call dockerfile,base)
$(OUTPUTDIR)/Dockerfile.base-devel: $(OUTPUTDIR)/base-devel.tar.xz
$(OUTPUTDIR)/Dockerfile.base-devel: $(OUTPUTDIR)/base-devel.tar.zst
$(call dockerfile,base-devel)
.PHONY: docker-image-base
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