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authorKieran Bingham <kieran.bingham@ideasonboard.com>2019-01-18 11:59:40 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2019-07-04 22:11:27 +0100
commitb817bcec6b5377fef0717d39348a173b7157a91b (patch)
tree84011604d36723bb5be8f48c5d882f49b926b553 /include
parent63d50ef0c64c16261b291231cc05258139da5ddf (diff)
libcamera: Auto generate version information
Generate a version string, and provide a global string object which allows applications to interrogate the current libcamera version information. The version header is automatically updated by meson on each build. The string roughly follows the semver [0] conventions of major.minor.patch-label as a value. [0] https://semver.org/ A script (utils/gen-version.sh) is provided which is modelled upon the processing from autoconf's git-version-gen. The gen-version.sh script will look for tags in the form vX.Y as starting points for the version string. While the repository does not have any matching tags, v0.0 will be assumed, resulting in versions with both major and minor being set to '0', and the patch count resulting from the number of patches in the history to that point. Finally, a uniquely identifying shortened hash is provided from git: v0.0.509+0ec0edf7 Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Diffstat (limited to 'include')
-rw-r--r--include/libcamera/meson.build7
-rw-r--r--include/libcamera/version.h.in22
2 files changed, 29 insertions, 0 deletions
diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
index 3067120a..6f81f111 100644
--- a/include/libcamera/meson.build
+++ b/include/libcamera/meson.build
@@ -16,6 +16,13 @@ libcamera_api = files([
'timer.h',
])
+gen_version = join_paths(meson.source_root(), 'utils', 'gen-version.sh')
+
+version_h = vcs_tag(command : [gen_version, meson.current_source_dir()],
+ input : 'version.h.in',
+ output : 'version.h',
+ fallback : 'v0.0')
+
gen_header = files('gen-header.sh')
libcamera_h = custom_target('gen-header',
diff --git a/include/libcamera/version.h.in b/include/libcamera/version.h.in
new file mode 100644
index 00000000..e49b3696
--- /dev/null
+++ b/include/libcamera/version.h.in
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * version.h - Library version information
+ *
+ * This file is auto-generated. Do not edit.
+ */
+#ifndef __LIBCAMERA_VERSION_H__
+#define __LIBCAMERA_VERSION_H__
+
+#include <string>
+
+#define LIBCAMERA_VERSION "@VCS_TAG@"
+
+namespace libcamera {
+
+extern const std::string version;
+
+} /* namespace libcamera */
+
+#endif /* __LIBCAMERA_VERSION_H__ */