Il sab 17 ott 2020, 18:43 Yonggang Luo <luoyonggang@gmail.com> ha scritto:

> The sh script are harder to maintain for compatible different
> xsh environment so convert it to python script
> Also incorporate the fixes in
>
> https://patchew.org/QEMU/20200929143654.518157-1-marcandre.lureau@redhat.com/
>
> According to https://github.com/msys2/MSYS2-packages/issues/2176
> We need use CYGWIN=noglob and MSYS=noglob in the environment variable
> for disable wildcard expanding in msys or cygwin git, and setting the
> shell=False
>

Honestly, I don't see the point in doing this change. Python is the wrong
tool for this job, and it's not like the configure script is disappearing
any time soon---so getting rid of shell scripts at this point is of limited
utility, especially for something like qemu-version.sh.

IMO the msys build is already much more robust in 5.2 than in 5.1 once the
pending pull request for ninja is in). Any other change has to provide a
clear improvement.

Paolo


> Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
> Message-Id: <20201006112139.700-1-luoyonggang@gmail.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  meson.build             |  2 +-
>  scripts/qemu-version.py | 37 +++++++++++++++++++++++++++++++++++++
>  scripts/qemu-version.sh | 25 -------------------------
>  3 files changed, 38 insertions(+), 26 deletions(-)
>  create mode 100644 scripts/qemu-version.py
>  delete mode 100755 scripts/qemu-version.sh
>
> diff --git a/meson.build b/meson.build
> index 05fb59a00b..b100b6d7be 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -1240,7 +1240,7 @@ tracetool = [
>     '--backend=' + config_host['TRACE_BACKENDS']
>  ]
>
> -qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
> +qemu_version_cmd = [find_program('scripts/qemu-version.py'),
>                      meson.current_source_dir(),
>                      config_host['PKGVERSION'], meson.project_version()]
>  qemu_version = custom_target('qemu-version.h',
> diff --git a/scripts/qemu-version.py b/scripts/qemu-version.py
> new file mode 100644
> index 0000000000..cf97b2bbb5
> --- /dev/null
> +++ b/scripts/qemu-version.py
> @@ -0,0 +1,37 @@
> +#!/usr/bin/env python3
> +
> +#
> +# Script for retrieve qemu git version information
> +#
> +# Authors:
> +#  Yonggang Luo <luoyonggang@gmail.com>
> +#
> +# This work is licensed under the terms of the GNU GPL, version 2
> +# or, at your option, any later version.  See the COPYING file in
> +# the top-level directory.
> +
> +import sys
> +import subprocess
> +import os
> +import os.path
> +
> +def main(_program, dir, pkgversion, version, *unused):
> +    os.chdir(dir)
> +    if not pkgversion and os.path.exists('.git'):
> +        pc = subprocess.run(
> +            ['git', 'describe', '--match', 'v*', '--dirty', '--always'],
> +            env=dict(os.environ, CYGWIN="noglob", MSYS='noglob'),
> +            stdout=subprocess.PIPE, stderr=subprocess.DEVNULL,
> +            encoding='utf8', shell=False)
> +        if pc.returncode == 0:
> +            pkgversion = pc.stdout.strip()
> +
> +    fullversion = version
> +    if pkgversion:
> +        fullversion = "{} ({})".format(version, pkgversion)
> +
> +    print('#define QEMU_PKGVERSION "%s"' % pkgversion)
> +    print('#define QEMU_FULL_VERSION "%s"' % fullversion)
> +
> +if __name__ == "__main__":
> +    main(*sys.argv)
> diff --git a/scripts/qemu-version.sh b/scripts/qemu-version.sh
> deleted file mode 100755
> index 3f6e7e6d41..0000000000
> --- a/scripts/qemu-version.sh
> +++ /dev/null
> @@ -1,25 +0,0 @@
> -#!/bin/sh
> -
> -set -eu
> -
> -dir="$1"
> -pkgversion="$2"
> -version="$3"
> -
> -if [ -z "$pkgversion" ]; then
> -    cd "$dir"
> -    if [ -e .git ]; then
> -        pkgversion=$(git describe --match 'v*' --dirty) || :
> -    fi
> -fi
> -
> -if [ -n "$pkgversion" ]; then
> -    fullversion="$version ($pkgversion)"
> -else
> -    fullversion="$version"
> -fi
> -
> -cat <<EOF
> -#define QEMU_PKGVERSION "$pkgversion"
> -#define QEMU_FULL_VERSION "$fullversion"
> -EOF
> --
> 2.28.0.windows.1
>
>