cpukit: Add a Version API.

Provide functions to get the version string, major, minor and revision
numbers and the version control identifer that is a unique tag for
the version control system.

Update #3199.

1 files changed, 39 insertions, 0 deletions

diff --git a/cpukit/sapi/vc-key.sh b/cpukit/sapi/vc-key.sh
new file mode 100755
index 0000000000..c628a1e26d
--- /dev/null
+++ b/cpukit/sapi/vc-key.sh
@@ -0,0 +1,39 @@
+#! /bin/sh
+
+git=$(command -v git)
+
+#
+# Git command not found or not a valid git repo is a release.
+#
+vc_ident="release"
+
+if test $# -ge 1; then
+ repo=$1
+ shift
+ if test -d $repo; then
+  cwd=$(pwd)
+  cd $repo
+  if test -n ${git}; then
+   git rev-parse --git-dir > /dev/null 2>&1
+   if test $? == 0; then
+    git status > /dev/null 2>&1
+    if git diff-index --quiet HEAD --; then
+     modified=""
+    else
+     modified="-modified"
+    fi
+    vc_ident="$(git rev-parse --verify HEAD)${modified}"
+    if test $# -ge 1; then
+     if test "${vc_ident}" == "$1"; then
+      vc_ident="matches"
+     fi
+    fi
+   fi
+  fi
+  cd $cwd
+ fi
+fi
+
+echo ${vc_ident}
+
+exit 0