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view contrib/dockerdeb @ 31209:dd2364f5180a
localrepo: handle rename with hardlinks properly
In "aftertrans", we rename "journal.*" to "undo.*". We expect "journal.*"
files to disappear after renaming.
However, if "journal.foo" and "undo.foo" refer to a same file (hardlink),
rename may be a no-op, leaving both files on disk, according to Linux
manpage [1]:
If oldpath and newpath are existing hard links referring to the same
file, then rename() does nothing, and returns a suc‐ cess status.
The POSIX specification [2] is not very clear about what to do.
To be safe, remove "undo.*" before the rename so "journal.*" cannot be left
on disk.
[1]: http://man7.org/linux/man-pages/man2/rename.2.html
[2]: http://pubs.opengroup.org/onlinepubs/9699919799/
author | Jun Wu <quark@fb.com> |
---|---|
date | Thu, 02 Mar 2017 21:49:30 -0800 |
parents | 78074575df2e |
children |
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#!/bin/bash -eu . $(dirname $0)/dockerlib.sh . $(dirname $0)/packagelib.sh BUILDDIR=$(dirname $0) export ROOTDIR=$(cd $BUILDDIR/.. > /dev/null; pwd) checkdocker DISTID="$1" CODENAME="$2" PLATFORM="$1-$2" shift; shift # extra params are passed to build process OUTPUTDIR=${OUTPUTDIR:=$ROOTDIR/packages/$PLATFORM} initcontainer $PLATFORM # debuild only appears to be able to save built debs etc to .., so we # have to share the .. of the current directory with the docker # container and hope it's writable. Whee. dn=$(basename $PWD) if [ $(uname) = "Darwin" ] ; then $DOCKER run -u $DBUILDUSER --rm -v $PWD/..:/mnt $CONTAINER \ sh -c "cd /mnt/$dn && make clean && make local" fi $DOCKER run -u $DBUILDUSER --rm -v $PWD/..:/mnt $CONTAINER \ sh -c "cd /mnt/$dn && DEB_BUILD_OPTIONS='${DEB_BUILD_OPTIONS:=}' contrib/builddeb --build --distid $DISTID --codename $CODENAME $@" contrib/builddeb --cleanup --distid $DISTID --codename $CODENAME if [ $(uname) = "Darwin" ] ; then $DOCKER run -u $DBUILDUSER --rm -v $PWD/..:/mnt $CONTAINER \ sh -c "cd /mnt/$dn && make clean" fi