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From 0065f2bf838dd0c24ec7be41439b4c0ba650029c Mon Sep 17 00:00:00 2001
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From: Jan Synacek <jsynacek@redhat.com>
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Date: Wed, 19 Feb 2020 15:36:13 +0100
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Subject: [PATCH] meson: allow setting the version string during configuration
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Very loosely based on upstream commits e1ca734edd17a90a325d5b566a4ea96e66c206e5
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and 681bd2c524ed71ac04045c90884ba8d55eee7b66.
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Resolves: #1804252
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---
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 meson.build          | 15 +++++++++++----
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 meson_options.txt    |  3 +++
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 src/udev/udev-ctrl.c |  5 ++++-
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 3 files changed, 18 insertions(+), 5 deletions(-)
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diff --git a/meson.build b/meson.build
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index c8ae1e15bd..0ba3f924ea 100644
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--- a/meson.build
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+++ b/meson.build
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@@ -15,17 +15,24 @@ project('systemd', 'c',
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 libsystemd_version = '0.23.0'
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 libudev_version = '1.6.11'
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+dist_version = get_option('version-tag')
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+if dist_version == ''
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+        dist_version = meson.project_version()
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+else
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+        dist_version = meson.project_version() + ' (' + dist_version + ')'
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+endif
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+
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 # We need the same data in two different formats, ugh!
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 # Also, for hysterical reasons, we use different variable
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 # names, sometimes. Not all variables are included in every
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 # set. Ugh, ugh, ugh!
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 conf = configuration_data()
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-conf.set_quoted('PACKAGE_STRING',  meson.project_name() + ' ' + meson.project_version())
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-conf.set_quoted('PACKAGE_VERSION', meson.project_version())
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+conf.set_quoted('PACKAGE_STRING',  meson.project_name() + ' ' + dist_version)
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+conf.set_quoted('PACKAGE_VERSION', dist_version)
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 substs = configuration_data()
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 substs.set('PACKAGE_URL',          'https://www.freedesktop.org/wiki/Software/systemd')
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-substs.set('PACKAGE_VERSION',      meson.project_version())
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+substs.set('PACKAGE_VERSION',      dist_version)
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 #####################################################################
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@@ -2871,7 +2878,7 @@ run_target(
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 ############################################################
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 status = [
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-        '@0@ @1@'.format(meson.project_name(), meson.project_version()),
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+        '@0@ @1@'.format(meson.project_name(), dist_version),
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         'split /usr:                        @0@'.format(split_usr),
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         'split bin-sbin:                    @0@'.format(split_bin),
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diff --git a/meson_options.txt b/meson_options.txt
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index 563b11f0a2..0996891177 100644
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--- a/meson_options.txt
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+++ b/meson_options.txt
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@@ -1,6 +1,9 @@
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 # -*- mode: meson -*-
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 # SPDX-License-Identifier: LGPL-2.1+
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+option('version-tag', type : 'string',
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+       description : 'override the version string')
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+
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 option('split-usr', type : 'combo', choices : ['auto', 'true', 'false'],
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        description : '''/bin, /sbin aren't symlinks into /usr''')
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 option('split-bin', type : 'combo', choices : ['auto', 'true', 'false'],
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diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c
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index efe7297f04..5382ce0d26 100644
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--- a/src/udev/udev-ctrl.c
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+++ b/src/udev/udev-ctrl.c
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@@ -239,7 +239,10 @@ static int ctrl_send(struct udev_ctrl *uctrl, enum udev_ctrl_msg_type type, int
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         int err = 0;
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         memzero(&ctrl_msg_wire, sizeof(struct udev_ctrl_msg_wire));
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-        strcpy(ctrl_msg_wire.version, "udev-" PACKAGE_VERSION);
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+        /* jsynacek: As PACKAGE_VERSION is populated from the spec file with %{version}-%{release},
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+         * it might not fit entirely into the version field. */
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+        strncpy(ctrl_msg_wire.version, "udev-" PACKAGE_VERSION, 16-5);
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+        ctrl_msg_wire.version[15] = '\0';
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         ctrl_msg_wire.magic = UDEV_CTRL_MAGIC;
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         ctrl_msg_wire.type = type;
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