forked from Minki/linux
Merge branch 'setlocalversion-speedup' into kbuild/kbuild
This commit is contained in:
Michal Marek
commit
8af8b28326
74
Makefile
74
Makefile
@ -883,80 +883,12 @@ PHONY += $(vmlinux-dirs)
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$(vmlinux-dirs): prepare scripts
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$(vmlinux-dirs): prepare scripts
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$(Q)$(MAKE) $(build)=$@
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$(Q)$(MAKE) $(build)=$@
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# Build the kernel release string
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#
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# The KERNELRELEASE value built here is stored in the file
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# include/config/kernel.release, and is used when executing several
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# make targets, such as "make install" or "make modules_install."
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#
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# The eventual kernel release string consists of the following fields,
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# shown in a hierarchical format to show how smaller parts are concatenated
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# to form the larger and final value, with values coming from places like
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# the Makefile, kernel config options, make command line options and/or
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# SCM tag information.
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#
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# $(KERNELVERSION)
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# $(VERSION) eg, 2
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# $(PATCHLEVEL) eg, 6
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# $(SUBLEVEL) eg, 18
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# $(EXTRAVERSION) eg, -rc6
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# $(localver-full)
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# $(localver)
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# localversion* (files without backups, containing '~')
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# $(CONFIG_LOCALVERSION) (from kernel config setting)
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# $(LOCALVERSION) (from make command line, if provided)
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# $(localver-extra)
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# $(scm-identifier) (unique SCM tag, if one exists)
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# ./scripts/setlocalversion (only with CONFIG_LOCALVERSION_AUTO)
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# .scmversion (only with CONFIG_LOCALVERSION_AUTO)
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# + (only without CONFIG_LOCALVERSION_AUTO
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# and without LOCALVERSION= and
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# repository is at non-tagged commit)
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#
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# For kernels without CONFIG_LOCALVERSION_AUTO compiled from an SCM that has
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# been revised beyond a tagged commit, `+' is appended to the version string
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# when not overridden by using "make LOCALVERSION=". This indicates that the
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# kernel is not a vanilla release version and has been modified.
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pattern = ".*/localversion[^~]*"
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string = $(shell cat /dev/null \
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`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
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localver = $(subst $(space),, $(string) \
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$(patsubst "%",%,$(CONFIG_LOCALVERSION)))
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# scripts/setlocalversion is called to create a unique identifier if the source
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# is managed by a known SCM and the repository has been revised since the last
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# tagged (release) commit. The format of the identifier is determined by the
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# SCM's implementation.
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#
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# .scmversion is used when generating rpm packages so we do not loose
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# the version information from the SCM when we do the build of the kernel
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# from the copied source
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ifeq ($(wildcard .scmversion),)
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scm-identifier = $(shell $(CONFIG_SHELL) \
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$(srctree)/scripts/setlocalversion $(srctree))
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else
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scm-identifier = $(shell cat .scmversion 2> /dev/null)
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endif
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ifdef CONFIG_LOCALVERSION_AUTO
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localver-extra = $(scm-identifier)
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else
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ifneq ($(scm-identifier),)
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ifeq ($(LOCALVERSION),)
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localver-extra = +
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endif
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endif
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endif
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localver-full = $(localver)$(LOCALVERSION)$(localver-extra)
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# Store (new) KERNELRELASE string in include/config/kernel.release
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# Store (new) KERNELRELASE string in include/config/kernel.release
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kernelrelease = $(KERNELVERSION)$(localver-full)
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localversion = $(shell $(CONFIG_SHELL) \
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$(srctree)/scripts/setlocalversion $(srctree))
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include/config/kernel.release: include/config/auto.conf FORCE
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include/config/kernel.release: include/config/auto.conf FORCE
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$(Q)rm -f $@
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$(Q)rm -f $@
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$(Q)echo $(kernelrelease) > $@
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$(Q)echo $(KERNELVERSION)$(localversion) > $@
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# Things we need to do before we recursively start building the kernel
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# Things we need to do before we recursively start building the kernel
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@ -44,7 +44,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
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fi
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fi
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$(MAKE) clean
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$(MAKE) clean
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$(PREV) ln -sf $(srctree) $(KERNELPATH)
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$(PREV) ln -sf $(srctree) $(KERNELPATH)
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$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion > $(objtree)/.scmversion
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$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --scm-only > $(objtree)/.scmversion
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$(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
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$(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
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$(PREV) rm $(KERNELPATH)
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$(PREV) rm $(KERNELPATH)
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rm -f $(objtree)/.scmversion
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rm -f $(objtree)/.scmversion
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@ -10,73 +10,158 @@
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#
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#
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usage() {
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usage() {
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echo "Usage: $0 [srctree]" >&2
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echo "Usage: $0 [--scm-only] [srctree]" >&2
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exit 1
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exit 1
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}
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}
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cd "${1:-.}" || usage
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scm_only=false
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srctree=.
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if test "$1" = "--scm-only"; then
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scm_only=true
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shift
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fi
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if test $# -gt 0; then
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srctree=$1
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shift
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fi
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if test $# -gt 0 -o ! -d "$srctree"; then
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usage
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fi
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# Check for git and a git repo.
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scm_version()
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if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
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{
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local short=false
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# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it,
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cd "$srctree"
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# because this version is defined in the top level Makefile.
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if test -e .scmversion; then
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if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
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cat "$_"
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return
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fi
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if test "$1" = "--short"; then
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short=true
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fi
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# If we are past a tagged commit (like "v2.6.30-rc5-302-g72357d5"),
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# Check for git and a git repo.
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# we pretty print it.
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if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
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if atag="`git describe 2>/dev/null`"; then
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echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
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# If we don't have a tag at all we print -g{commitish}.
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# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
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else
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# it, because this version is defined in the top level Makefile.
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printf '%s%s' -g $head
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if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
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# If only the short version is requested, don't bother
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# running further git commands
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if $short; then
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echo "+"
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return
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fi
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# If we are past a tagged commit (like
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# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
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if atag="`git describe 2>/dev/null`"; then
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echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
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# If we don't have a tag at all we print -g{commitish}.
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else
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printf '%s%s' -g $head
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fi
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fi
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fi
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# Is this git on svn?
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if git config --get svn-remote.svn.url >/dev/null; then
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printf -- '-svn%s' "`git svn find-rev $head`"
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fi
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# Update index only on r/w media
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[ -w . ] && git update-index --refresh --unmerged > /dev/null
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# Check for uncommitted changes
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if git diff-index --name-only HEAD | grep -v "^scripts/package" \
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| read dummy; then
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printf '%s' -dirty
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fi
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# All done with git
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return
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fi
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fi
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# Is this git on svn?
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# Check for mercurial and a mercurial repo.
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if git config --get svn-remote.svn.url >/dev/null; then
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if hgid=`hg id 2>/dev/null`; then
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printf -- '-svn%s' "`git svn find-rev $head`"
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tag=`printf '%s' "$hgid" | cut -d' ' -f2`
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# Do we have an untagged version?
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if [ -z "$tag" -o "$tag" = tip ]; then
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id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
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printf '%s%s' -hg "$id"
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fi
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# Are there uncommitted changes?
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# These are represented by + after the changeset id.
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case "$hgid" in
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*+|*+\ *) printf '%s' -dirty ;;
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esac
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# All done with mercurial
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return
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fi
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fi
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# Update index only on r/w media
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# Check for svn and a svn repo.
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[ -w . ] && git update-index --refresh --unmerged > /dev/null
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if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
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rev=`echo $rev | awk '{print $NF}'`
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printf -- '-svn%s' "$rev"
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# Check for uncommitted changes
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# All done with svn
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if git diff-index --name-only HEAD | grep -v "^scripts/package" \
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return
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| read dummy; then
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printf '%s' -dirty
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fi
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fi
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}
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# All done with git
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collect_files()
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{
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local file res
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for file; do
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case "$file" in
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*\~*)
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continue
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;;
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esac
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if test -e "$file"; then
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res="$res$(cat "$file")"
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fi
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done
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echo "$res"
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}
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if $scm_only; then
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scm_version
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exit
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exit
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fi
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fi
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# Check for mercurial and a mercurial repo.
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if test -e include/config/auto.conf; then
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if hgid=`hg id 2>/dev/null`; then
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source "$_"
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tag=`printf '%s' "$hgid" | cut -d' ' -f2`
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else
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echo "Error: kernelrelease not valid - run 'make prepare' to update it"
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exit 1
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fi
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# Do we have an untagged version?
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# localversion* files in the build and source directory
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if [ -z "$tag" -o "$tag" = tip ]; then
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res="$(collect_files localversion*)"
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id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
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if test ! "$srctree" -ef .; then
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printf '%s%s' -hg "$id"
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res="$res$(collect_files "$srctree"/localversion*)"
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fi
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# CONFIG_LOCALVERSION and LOCALVERSION (if set)
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res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
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# scm version string if not at a tagged commit
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if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
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# full scm version string
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res="$res$(scm_version)"
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else
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# apped a plus sign if the repository is not in a clean tagged
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# state and LOCALVERSION= is not specified
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if test "${LOCALVERSION+set}" != "set"; then
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scm=$(scm_version --short)
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res="$res${scm:++}"
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fi
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fi
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# Are there uncommitted changes?
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# These are represented by + after the changeset id.
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case "$hgid" in
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*+|*+\ *) printf '%s' -dirty ;;
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esac
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# All done with mercurial
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exit
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fi
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fi
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# Check for svn and a svn repo.
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echo "$res"
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if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
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rev=`echo $rev | awk '{print $NF}'`
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printf -- '-svn%s' "$rev"
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# All done with svn
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exit
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fi
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Block a user