Hi,

On Thu, Sep 22, 2022 at 8:59 AM Lev Stipakov <lstipa...@gmail.com> wrote:

> From: Lev Stipakov <l...@openvpn.net>
>
> Add a simple python script which generates header with
> branch name and commit hash #defines.
>
> While on it, fix filename in msvc-generate.vcxproj
> and add proper copyright header to Makefile.mak.
>
> Signed-off-by: Lev Stipakov <l...@openvpn.net>
> ---
>  build/msvc/msvc-generate/Makefile.mak         | 33 +++++++++++++-
>  build/msvc/msvc-generate/git-version.py       | 45 +++++++++++++++++++
>  .../msvc/msvc-generate/msvc-generate.vcxproj  |  2 +-
>  config-msvc.h                                 |  2 +
>  4 files changed, 79 insertions(+), 3 deletions(-)
>  create mode 100644 build/msvc/msvc-generate/git-version.py
>
> diff --git a/build/msvc/msvc-generate/Makefile.mak
> b/build/msvc/msvc-generate/Makefile.mak
> index 1cb43102..ae8b0842 100644
> --- a/build/msvc/msvc-generate/Makefile.mak
> +++ b/build/msvc/msvc-generate/Makefile.mak
> @@ -1,4 +1,27 @@
> -# Copyright (C) 2008-2012 Alon Bar-Lev <alon.bar...@gmail.com>
> +#
> +#  OpenVPN -- An application to securely tunnel IP networks
> +#             over a single UDP port, with support for SSL/TLS-based
> +#             session authentication and key exchange,
> +#             packet encryption, packet authentication, and
> +#             packet compression.
> +#
> +#  Copyright (C) 2002-2022 OpenVPN Inc <sa...@openvpn.net>
> +#  Copyright (C) 2008-2012 Alon Bar-Lev <alon.bar...@gmail.com>
> +#  Copyright (C) 2022-2022 Lev Stipakov <l...@lestisoftware.fi>
> +#
> +#  This program is free software; you can redistribute it and/or modify
> +#  it under the terms of the GNU General Public License version 2
> +#  as published by the Free Software Foundation.
> +#
> +#  This program is distributed in the hope that it will be useful,
> +#  but WITHOUT ANY WARRANTY; without even the implied warranty of
> +#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +#  GNU General Public License for more details.
> +#
> +#  You should have received a copy of the GNU General Public License along
> +#  with this program; if not, write to the Free Software Foundation, Inc.,
> +#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> +#
>
>  CONFIG=$(SOLUTIONDIR)/version.m4
>
> @@ -14,7 +37,9 @@ OUTPUT_PLUGIN_CONFIG=version.m4
>  INPUT_MAN=$(SOLUTIONDIR)/doc/openvpn.8.rst
>  OUTPUT_MAN=$(SOLUTIONDIR)/doc/openvpn.8.html
>
> -all:   $(OUTPUT_MSVC_VER) $(OUTPUT_PLUGIN) $(OUTPUT_MAN)
> +OUTPUT_MSVC_GIT_CONFIG=$(SOLUTIONDIR)/config-version.h
> +
> +all:   $(OUTPUT_MSVC_VER) $(OUTPUT_PLUGIN) $(OUTPUT_MAN)
> $(OUTPUT_MSVC_GIT_CONFIG)
>
>  $(OUTPUT_MSVC_VER): $(INPUT_MSVC_VER) $(CONFIG)
>         cscript //nologo msvc-generate.js --config="$(CONFIG)"
> --input="$(INPUT_MSVC_VER)" --output="$(OUTPUT_MSVC_VER)"
> @@ -28,8 +53,12 @@ $(OUTPUT_PLUGIN): $(INPUT_PLUGIN)
> $(OUTPUT_PLUGIN_CONFIG)
>  $(OUTPUT_MAN): $(INPUT_MAN)
>      -FOR /F %i IN ('where rst2html.py') DO python %i "$(INPUT_MAN)"
> "$(OUTPUT_MAN)"
>
> +$(OUTPUT_MSVC_GIT_CONFIG):
> +    python git-version.py $(SOLUTIONDIR)
> +
>  clean:
>         -del "$(OUTPUT_MSVC_VER)"
>         -del "$(OUTPUT_PLUGIN)"
>         -del "$(OUTPUT_PLUGIN_CONFIG)"
>         -del "$(OUTPUT_MAN)"
> +       -del "$(OUTPUT_MSVC_GIT_CONFIG)"
> diff --git a/build/msvc/msvc-generate/git-version.py
> b/build/msvc/msvc-generate/git-version.py
> new file mode 100644
> index 00000000..e1bf5bdb
> --- /dev/null
> +++ b/build/msvc/msvc-generate/git-version.py
> @@ -0,0 +1,45 @@
> +#
> +#  OpenVPN -- An application to securely tunnel IP networks
> +#             over a single UDP port, with support for SSL/TLS-based
> +#             session authentication and key exchange,
> +#             packet encryption, packet authentication, and
> +#             packet compression.
> +#
> +#  Copyright (C) 2002-2022 OpenVPN Inc <sa...@openvpn.net>
>

Is this right in a file that didn't exist in 2002?


> +#  Copyright (C) 2022-2022 Lev Stipakov <l...@lestisoftware.fi>
> +#
> +#  This program is free software; you can redistribute it and/or modify
> +#  it under the terms of the GNU General Public License version 2
> +#  as published by the Free Software Foundation.
> +#
> +#  This program is distributed in the hope that it will be useful,
> +#  but WITHOUT ANY WARRANTY; without even the implied warranty of
> +#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +#  GNU General Public License for more details.
> +#
> +#  You should have received a copy of the GNU General Public License along
> +#  with this program; if not, write to the Free Software Foundation, Inc.,
> +#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> +#
> +
> +import os
> +import sys
> +
> +def get_branch_commit_id():
> +    commit_id = os.popen("git rev-parse --short=16 HEAD").read()[:-1]
> +    branch = os.popen("git rev-parse --symbolic-full-name
> HEAD").read().split("/")[2][:-1]

+    return branch, commit_id
> +
> +def main():
> +    try:
> +        branch, commit_id = get_branch_commit_id()
> +    except:
> +        branch, commit_id = "<not-a-git-repo>", "<not-a-git-repo>"
> +
>

While "not-a-git-repo" may be a descriptive o/p for a script like this, it
may not make much sense when seen in --version output.
Instead, something like "unknown" may be a better fallback?

As the exception comes from a failed split("/"), it could trigger also when
one is not on a branch (say detached head).

+
> +    name = os.path.join("%s" %  (sys.argv[1] if len(sys.argv) > 1 else
> "."), "config-version.h")
> +    with open(name, "w") as f:
> +        f.write("#define CONFIGURE_GIT_REVISION \"%s/%s\"\n" % (branch,
> commit_id))
> +        f.write("#define CONFIGURE_GIT_FLAGS \"\"\n")
> +
> +if __name__ == "__main__":
> +    main()
> diff --git a/build/msvc/msvc-generate/msvc-generate.vcxproj
> b/build/msvc/msvc-generate/msvc-generate.vcxproj
> index dda8b051..eae94709 100644
> --- a/build/msvc/msvc-generate/msvc-generate.vcxproj
> +++ b/build/msvc/msvc-generate/msvc-generate.vcxproj
> @@ -150,7 +150,7 @@
>    </ItemDefinitionGroup>
>    <ItemGroup>
>      <None Include="Makefile.mak" />
> -    <None Include="msc-generate.js" />
> +    <None Include="msvc-generate.js" />
>    </ItemGroup>
>    <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
>    <ImportGroup Label="ExtensionTargets">
> diff --git a/config-msvc.h b/config-msvc.h
> index e7479c86..47c5ba07 100644
> --- a/config-msvc.h
> +++ b/config-msvc.h
> @@ -177,3 +177,5 @@ typedef uint16_t in_port_t;
>      #define HAVE_INET_NTOP
>      #define HAVE_INET_PTON
>  #endif
> +
> +#define HAVE_CONFIG_VERSION_H 1
> --
> 2.23.0.windows.1
>

Are executables in release builds pulled from corresponding git repo these
days? Otherwise when built from some repo like openvpn-build this would get
wrong branch/commit-ids..

Selva
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