Scatter the useful files into subdirectories by theme.

[cfd] / build / auto-version

diff --git a/build/auto-version b/build/auto-version
new file mode 100755 (executable)
index 0000000..d8189ed
--- /dev/null
+++ b/build/auto-version
@@ -0,0 +1,104 @@
+#! /bin/sh
+### -*-sh-*-
+###
+### Make autoconf-like substitutions in files
+###
+### (c) 2008 Mark Wooding
+###
+
+###----- Licensing notice ---------------------------------------------------
+###
+### This file is part of the Common Files Distribution (`common').
+###
+### `Common' is free software; you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2 of the License, or
+### (at your option) any later version.
+###
+### `Common' 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 `common'; if not, write to the Free Software Foundation,
+### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+set -e
+VERSION="@VERSION@"
+
+###--------------------------------------------------------------------------
+### Parse command line arguments.
+
+while [ $# -gt 0 ]; do
+  case $1 in
+    -h | --h | --he | --hel | --help)
+      cat <<EOF
+Usage: auto-verison
+
+Writes on standard output the program's version number.
+EOF
+      exit 0
+      ;;
+    -v | --v | --ve | --ver | --vers | --versi | --versio | --version)
+      echo "auto-version: Common Files Distribution version $VERSION"
+      exit 0
+      ;;
+    --)
+      shift
+      break
+      ;;
+    -)
+      break
+      ;;
+    -*)
+      echo "auto-version: unknown option \`$1'" >&2
+      exit 1
+      ;;
+    *)
+      break
+      ;;
+  esac
+  shift
+done
+
+if [ $# -ne 0 ]; then
+  echo >&2 "Usage: auto-version"
+  exit 1
+fi
+
+###--------------------------------------------------------------------------
+### Main program.
+
+## If this is a Git checkout then Git should be able to identify the version.
+## If there's also a Debian version, and that ends in a `~', then prefix the
+## Git version with this.  Note that `pkg-config' is not very good, and, in
+## particular, doesn't support the convention that `~' sorts before anything
+## else, even the empty string, despite claiming to implement the RPM
+## version-comparison algorithm which specifies this behaviour, so one must
+## be careful when choosing `~' prefixes.
+if [ -e .git ] && version=$(git describe --abbrev=4 --dirty=+ 2>/dev/null); then
+  debver=$(sed -n '/^.*(\(.*\)).*$/ { s::\1:p; q; }' debian/changelog)
+  case $debver in *~) version=$debver$version ;; esac
+  echo "$version"
+  exit 0
+fi
+
+## If this was unpacked from a source distribution, the RELEASE file should
+## say what the version was.
+if [ -f RELEASE ]; then
+  cat RELEASE
+  exit 0
+fi
+
+## If we're Debianized, then the Debian changelog ought to know.
+if [ -f debian/changelog ]; then
+  sed -n '/^.*(\(.*\)).*$/ { s::\1:p; q; }' debian/changelog
+  exit 0
+fi
+
+## Otherwise we're screwed.
+echo UNKNOWN
+exit 0
+
+###----- That's all, folks --------------------------------------------------