Re: [Xen-devel] [PATCH v2] Use {git, hg, svn} commit id if available for xen_changeset

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 08/05/13 12:05, Ian Campbell wrote:
> On Wed, 2013-05-08 at 06:42 +0100, Marek Marczykowski wrote:
>> As Xen uses git as primary repository, get git commit id for
>> xen_changeset info.
> I applied this to an hg repo and:
> $ chmod +x xen/tools/scmversion 
> $ rm xen/include/xen/compile.h
> $ make -C xen include/xen/compile.h
> make: Entering directory `/local/scratch/ianc/devel/xen-unstable.hg/xen'
>  __  __            _  _    _____                    _        _     _      
>  \ \/ /___ _ __   | || |  |___ /    _   _ _ __  ___| |_ __ _| |__ | | ___ 
>   \  // _ \ '_ \  | || |_   |_ \ __| | | | '_ \/ __| __/ _` | '_ \| |/ _ \
>   /  \  __/ | | | |__   _| ___) |__| |_| | | | \__ \ || (_| | |_) | |  __/
>  /_/\_\___|_| |_|    |_|(_)____/    \__,_|_| |_|___/\__\__,_|_.__/|_|\___|
>                                                                           
> make: Leaving directory `/local/scratch/ianc/devel/xen-unstable.hg/xen'
> $ grep CHANGESET xen/include/xen/compile.h
> #define XEN_CHANGESET         " 2>/dev/null | tr -d n)"
>
> Same seems to happen for a git repo too so its not VCS specific.
>
> It also happens if I do an actual build rather than forcing things as
> above.
>
> Running scmversion by hand appears to produce good output.
>
> Indentation in svmversion seems a bit off though, e.g. 
> +        printf '%s %s%s' "$date" git: $head
> +
> +               # Is this git on svn?
> +               if git config --get svn-remote.svn.url >/dev/null; then
> +                       printf -- 'svn:%s' "`git svn find-rev $head`"
> +               fi
>
> Seems to be tab vs space related, the printf is space indented and the
> rest is tab indented.
>
> Ian.

Can I please re-request a merge of this change (which in itself is good
and fine) with

http://lists.xen.org/archives/html/xen-devel/2012-07/msg01886.html

The reason is that the changeset information is *still broken* for an
out-of-scm builds such as RPMs and DEBs.

I will happily rebase the above path on top of this one, if it is accepted.

~Andrew

>
>> Changes in v2:
>>  - split scm calls into separate script - based on Linux kernel one,
>>    with tags handling removed
>>  - update title
>>
>> Signed-off-by: Marek Marczykowski <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
>> ---
>>  xen/Makefile         |  2 +-
>>  xen/tools/scmversion | 99 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 100 insertions(+), 1 deletion(-)
>>  create mode 100755 xen/tools/scmversion
>>
>> diff --git a/xen/Makefile b/xen/Makefile
>> index 0fb3db7..6f1f13d 100644
>> --- a/xen/Makefile
>> +++ b/xen/Makefile
>> @@ -126,7 +126,7 @@ include/xen/compile.h: include/xen/compile.h.in .banner
>>          -e 's/@@version@@/$(XEN_VERSION)/g' \
>>          -e 's/@@subversion@@/$(XEN_SUBVERSION)/g' \
>>          -e 's/@@extraversion@@/$(XEN_EXTRAVERSION)/g' \
>> -        -e 's!@@changeset@@!$(shell ((hg parents --template "{date|date} 
>> {rev}:{node|short}" >/dev/null && hg parents --template "{date|date} 
>> {rev}:{node|short}") || echo "unavailable") 2>/dev/null)!g' \
>> +        -e 's!@@changeset@@!$(shell tools/scmversion || echo "unavailable") 
>> 2>/dev/null | tr -d '\n')!g' \
>>          < include/xen/compile.h.in > $@.new
>>      @grep \" .banner >> $@.new
>>      @grep -v \" .banner
>> diff --git a/xen/tools/scmversion b/xen/tools/scmversion
>> new file mode 100755
>> index 0000000..19d4137
>> --- /dev/null
>> +++ b/xen/tools/scmversion
>> @@ -0,0 +1,99 @@
>> +#!/bin/sh
>> +#
>> +# This scripts adds local version information from the version
>> +# control systems git, mercurial (hg) and subversion (svn).
>> +#
>> +# If something goes wrong, send a mail the kernel build mailinglist
>> +# (see MAINTAINERS) and CC Nico Schottelius
>> +# <nico-linuxsetlocalversion -at- schottelius.org>.
>> +#
>> +# Based on setlocalversion from Linux kernel
>> +#
>> +#
>> +
>> +usage() {
>> +    echo "Usage: $0 [--save-scmversion] [srctree]" >&2
>> +    exit 1
>> +}
>> +
>> +scm_only=false
>> +srctree=.
>> +if test "$1" = "--save-scmversion"; then
>> +    scm_only=true
>> +    shift
>> +fi
>> +if test $# -gt 0; then
>> +    srctree=$1
>> +    shift
>> +fi
>> +if test $# -gt 0 -o ! -d "$srctree"; then
>> +    usage
>> +fi
>> +
>> +scm_version()
>> +{
>> +    local short
>> +    short=false
>> +
>> +    cd "$srctree"
>> +    if test -e .scmversion; then
>> +            cat .scmversion
>> +            return
>> +    fi
>> +    if test "$1" = "--short"; then
>> +            short=true
>> +    fi
>> +
>> +    # Check for git and a git repo.
>> +    if test -d .git && head=`git rev-parse --verify --short HEAD 
>> 2>/dev/null`; then
>> +            date=`git show -s --pretty="%ad" HEAD`
>> +
>> +        printf '%s %s%s' "$date" git: $head
>> +
>> +            # Is this git on svn?
>> +            if git config --get svn-remote.svn.url >/dev/null; then
>> +                    printf -- 'svn:%s' "`git svn find-rev $head`"
>> +            fi
>> +
>> +            # Update index only on r/w media
>> +            [ -w . ] && git update-index --refresh --unmerged > /dev/null
>> +
>> +            # Check for uncommitted changes
>> +            if git diff-index --name-only HEAD | grep -qv 
>> "^scripts/package"; then
>> +                    printf '%s' -dirty
>> +            fi
>> +
>> +            # All done with git
>> +            return
>> +    fi
>> +
>> +    # Check for mercurial and a mercurial repo.
>> +    if test -d .hg && hgid=`hg id 2>/dev/null`; then
>> +            id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
>> +            date=`hg parents --template "{date|date}"`
>> +            printf '%s %s%s' "$date" hg: "$id"
>> +
>> +            # Are there uncommitted changes?
>> +            # These are represented by + after the changeset id.
>> +            case "$hgid" in
>> +                    *+|*+\ *) printf '%s' -dirty ;;
>> +            esac
>> +
>> +            # All done with mercurial
>> +            return
>> +    fi
>> +
>> +    # Check for svn and a svn repo.
>> +    if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last 
>> Changed Rev'`; then
>> +            rev=`echo $rev | awk '{print $NF}'`
>> +            printf -- 'svn:%s' "$rev"
>> +
>> +            # All done with svn
>> +            return
>> +    fi
>> +}
>> +
>> +# full scm version string
>> +res="$(scm_version)"
>> +
>> +echo "$res"
>
>
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