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-rw-r--r--m4/knot-version.m419
1 files changed, 19 insertions, 0 deletions
diff --git a/m4/knot-version.m4 b/m4/knot-version.m4
new file mode 100644
index 0000000..6e9158d
--- /dev/null
+++ b/m4/knot-version.m4
@@ -0,0 +1,19 @@
+################################################################################
+# Knot DNS versions are as follows
+#
+# <MAJOR>.<MINOR>.dev[.<TIMESTAMP>.<HASH>] Build from the master branch
+# <MAJOR>.<MINOR>.<PATCH>[.<TIMESTAMP>.<HASH>] Build from a feature branch
+#
+# If the repository is not available or if HEAD is tagged,
+# the optional part is missing!
+#
+# Example: 2.7.dev.1521027664.5e69ccc
+################################################################################
+
+m4_define([knot_PATCH], m4_ifblank(knot_VERSION_PATCH, [dev], knot_VERSION_PATCH))dnl
+m4_define([knot_GIT_HASH], m4_esyscmd_s(git rev-parse --short HEAD 2>/dev/null))dnl
+m4_define([knot_GIT_TAG], m4_esyscmd_s(git describe --exact-match 2>/dev/null))dnl
+m4_define([knot_TIMESTAMP], m4_esyscmd_s(date -u +'%s' 2>/dev/null))dnl
+m4_define([knot_GIT_INFO], m4_ifblank(knot_GIT_TAG, m4_ifnblank(knot_GIT_HASH, .knot_TIMESTAMP.knot_GIT_HASH, []), []))dnl
+
+m4_define([knot_PKG_VERSION], [knot_VERSION_MAJOR.knot_VERSION_MINOR.knot_PATCH]knot_GIT_INFO)dnl