--- /dev/null
+#!/bin/sh
+#
+# Generate some basic versioning information which can be piped to a header.
+#
+# Copyright (c) 2006-2007 Luc Verhaegen <libv@skynet.be>
+# Copyright (C) 2007-2008 Hans Ulrich Niedermann <hun@n-dimensional.de>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# This script is based on the one written for xf86-video-unichrome by
+# Luc Verhaegen, but was rewritten almost completely by Hans Ulrich
+# Niedermann. The script contains a few bug fixes from Egbert Eich,
+# Matthias Hopf, Joerg Sonnenberger, and possibly others.
+#
+# The author thanks the nice people on #git for the assistance.
+#
+# Simple testing of this script:
+# /sbin/busybox sh git_version.sh --example > moo.c \
+# && gcc -Wall -Wextra -Wno-unused -o moo moo.c \
+# && ./moo
+# (bash should also do)
+#
+# For how to hook this up to your automake- and/or imake-based build
+# system, best take a look at how the RadeonHD.am and/or RadeonHD.tmpl
+# work in the xf86-video-radeonhd build system. For non-recursive make,
+# you can probably make things a little bit simpler.
+#
+# Requires git >= 1.3.0 for the 'git foo' (with space) syntax,
+# and git >= 1.4 for some specific commands.
+
+# Help messages
+USAGE="[<option>...]"
+LONG_USAGE="\
+Options:
+ -h, --help Print this help message.
+
+ -k, --keep-if-no-repo Keep old output file if no git repo found.
+ -o, --output FILENAME Set output file name.
+ -q, --quiet Quiet output.
+ -s, --srcdir DIRNAME Set source tree dir name.
+ -x, --example Print complete example program."
+
+# The caller may have set these for us
+SED="${SED-sed}"
+GIT="${GIT-git}"
+
+# Initialize
+working_dir=`pwd`
+
+# Who am I?
+self=`basename "$0"`
+
+# Defaults
+ifndef_symbol="GIT_VERSION_H"
+outfile="-"
+print_example=false
+keep_if_no_repo=no
+quiet=false
+srcdir=`pwd`
+
+# Parse command line parameter, affecting defaults
+while [ "x$1" != "x" ]
+do
+ case "$1" in
+ -x|--example)
+ print_example=:
+ ;;
+ -o|--output)
+ if shift; then
+ outfile="$1"
+ if [ "x$outfile" = "x-" ]; then
+ : # keep default ifndef_symbol
+ else
+ ifndef_symbol=`basename "$outfile" | $SED 's|\.|_|g; s|[^A-Za-z0-9_]||g' | tr a-z A-Z`
+ fi
+ else
+ echo "$self: Fatal: \"$1\" option requires parameter." >&2
+ exit 1
+ fi
+ ;;
+ -q|--quiet)
+ quiet=:
+ ;;
+ -h|--help)
+ echo "Usage: ${self} $USAGE"
+ [ -n "$LONG_USAGE" ] && echo "$LONG_USAGE"
+ exit
+ ;;
+ -k|--keep-if-no-repo)
+ keep_if_no_repo=yes
+ ;;
+ -s|--srcdir)
+ if shift; then
+ if test -d "$1"; then
+ srcdir="$1"
+ else
+ echo "$self: Fatal: \"$1\" not a directory." >&2
+ exit 1
+ fi
+ else
+ echo "$self: Fatal: \"$1\" option requires directory parameter." >&2
+ exit 1
+ fi
+ ;;
+ *)
+ echo "$self: Fatal: Invalid command line paramenter: \"$1\"" >&2
+ exit 1
+ ;;
+ esac
+ shift
+done
+
+# If not printing to stdout, redirect stdout to output file?
+rename_new_output=false
+if [ "x$outfile" = "x-" ]
+then
+ : # keep using stdout
+else
+ exec 1> "${outfile}.new"
+fi
+
+# Done with creating output files, so we can change to source dir
+abs_srcdir=`cd "$srcdir" && pwd`
+cd "$srcdir"
+
+# Write program header
+cat<<EOF
+/*
+ * Basic versioning gathered from the git repository.
+ * Automatically generated by $0.
+ */
+
+#ifndef ${ifndef_symbol}
+#define ${ifndef_symbol} 1
+
+/* whether this is a dist tarball or not */
+#undef GIT_IS_DIST
+
+EOF
+
+# Detect git tool (should work with old and new git versions)
+git_found=yes
+if [ "x$GIT" = "xgit" ] && [ x`which $GIT 2>/dev/null` = "x" ]; then
+ git_found="'$GIT' not found"
+ break
+fi
+# If git_found=yes, we can now use $() substitutions (as git does). Hooray!
+
+# Determine git specific defines
+unset git_errors ||:
+if [ "x$git_found" = "xyes" ]; then
+ git_version=`$GIT --version`
+ if [ "x$git_version" = "x" ]; then
+ git_errors="${git_errors+${git_errors}; }error running '$GIT --version'"
+ fi
+fi
+
+git_repo=no
+# "git-rev-parse --git-dir" since git-0.99.7
+git_repo_dir="$($GIT rev-parse --git-dir 2> /dev/null || true)"
+abs_repo_dir="$(cd "$git_repo_dir" && pwd)"
+# Only accept the found git repo iff it is in our top srcdir, as determined
+# by comparing absolute pathnames created by running pwd in the respective dir.
+if [ "x$git_repo_dir" != "x" ] && [ "x${abs_repo_dir}" = "x${abs_srcdir}/.git" ]; then
+ git_repo=yes
+ if [ "x$git_found" = "xyes" ]; then
+ # git-1.4 and probably earlier understand "git-rev-parse HEAD"
+ git_shaid=`$GIT rev-parse HEAD | $SED -n 's/^\(.\{8\}\).*/\1/p'`
+ if [ "x$git_shaid" = "x" ]; then
+ git_errors="${git_errors+${git_errors}; }error running '$GIT rev-parse HEAD'"
+ fi
+ # git-1.4 and probably earlier understand "git-symbolic-ref HEAD"
+ git_branch=`$GIT symbolic-ref HEAD | $SED -n 's|^refs/heads/||p'`
+ if [ "x$git_branch" = "x" ]; then
+ # This happens, is OK, and "(no branch)" is what "git branch" prints.
+ git_branch="(no branch)"
+ fi
+ git_dirty=yes
+ # git-1.4 does not understand "git-diff-files --quiet"
+ # git-1.4 does not understand "git-diff-index --cached --quiet HEAD"
+ if [ "x$($GIT diff-files)" = "x" ] && [ "x$($GIT diff-index --cached HEAD)" = "x" ]; then
+ git_dirty=no
+ fi
+ fi
+fi
+
+# Write git specific defines
+if [ "x$git_errors" = "x" ]; then
+ echo "/* No errors occured while running git */"
+ echo "#undef GIT_ERRORS"
+else
+ echo "/* Some errors occured while running git */"
+ echo "#define GIT_ERRORS \"${git_errors}\""
+fi
+echo ""
+
+if [ "x$git_found" = "xyes" ]; then
+ echo "/* git utilities found */"
+ echo "#undef GIT_NOT_FOUND"
+ echo "#define GIT_VERSION \"${git_version}\""
+else
+ echo "/* git utilities not found */"
+ echo "#define GIT_NOT_FOUND \"${git_found}\""
+ echo "#undef GIT_VERSION"
+fi
+echo ""
+
+if :; then # debug output
+cat<<EOF
+/* The following helps debug why we sometimes do not find ".git/":
+ * abs_repo_dir="${abs_repo_dir}" (should be "/path/to/.git")
+ * abs_srcdir="${abs_srcdir}" (absolute top source dir "/path/to")
+ * git_repo_dir="${git_repo_dir}" (usually ".git" or "/path/to/.git")
+ * PWD="${PWD}"
+ * srcdir="${srcdir}"
+ * working_dir="${working_dir}"
+ */
+
+EOF
+fi
+
+if [ "x$git_repo" = "xno" ]; then
+ echo "/* No git repo found, probably building from dist tarball */"
+ echo "#undef GIT_REPO"
+else
+ echo "/* git repo found */"
+ echo "#define GIT_REPO 1"
+ echo ""
+ if [ "x$git_found" = "xyes" ]; then
+ echo "/* Git SHA ID of last commit */"
+ echo "#define GIT_SHAID \"${git_shaid}\""
+ echo ""
+
+ echo "/* Branch this tree is on */"
+ echo "#define GIT_BRANCH \"$git_branch\""
+ echo ""
+
+ # Any uncommitted changes we should know about?
+ # Or technically: Are the working tree or index dirty?
+ if [ "x$git_dirty" = "xno" ]; then
+ echo "/* SHA-ID uniquely defines the state of this code */"
+ echo "#undef GIT_DIRTY"
+ else
+ echo "/* Local changes might be breaking things */"
+ echo "#define GIT_DIRTY 1"
+ fi
+ fi
+fi
+
+# Define a few immediately useful message strings
+cat<<EOF
+
+/* Define GIT_MESSAGE such that
+ * printf("%s: built from %s", argv[0], GIT_MESSAGE);
+ * forms a proper sentence.
+ */
+
+#ifdef GIT_DIRTY
+# define GIT_DIRTY_MSG " + changes"
+#else /* !GIT_DIRTY */
+# define GIT_DIRTY_MSG ""
+#endif /* GIT_DIRTY */
+
+#ifdef GIT_ERRORS
+# define GIT_ERROR_MSG " with error: " GIT_ERRORS
+#else /* !GIT_ERRORS */
+# define GIT_ERROR_MSG ""
+#endif /* GIT_ERRORS */
+
+#ifdef GIT_IS_DIST
+# define GIT_DIST_MSG "dist of "
+#else /* !GIT_IS_DIST */
+# define GIT_DIST_MSG ""
+#endif /* GIT_IS_DIST */
+
+#ifdef GIT_REPO
+# ifdef GIT_NOT_FOUND
+# define GIT_MESSAGE GIT_DIST_MSG "git sources without git: " GIT_NOT_FOUND
+# else /* !GIT_NOT_FOUND */
+# define GIT_MESSAGE \\
+ GIT_DIST_MSG \\
+ "git branch " GIT_BRANCH ", " \\
+ "commit " GIT_SHAID GIT_DIRTY_MSG \\
+ GIT_ERROR_MSG
+# endif /* GIT_NOT_FOUND */
+#else /* !GIT_REPO */
+# define GIT_MESSAGE GIT_DIST_MSG "non-git sources" GIT_ERROR_MSG
+#endif /* GIT_REPO */
+
+#endif /* ${ifndef_symbol} */
+EOF
+
+# Example program
+if "$print_example"
+then
+ cat<<EOF
+
+/* example program demonstrating the use of git_version.sh output */
+#include <stdio.h>
+#include <string.h>
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+int main(int argc, char *argv[])
+{
+ const char *const idx = strrchr(argv[0], '/');
+ const char *const prog = (idx)?(idx+1):(argv[0]);
+#ifdef PACKAGE_VERSION
+ printf("%s: version %s, built from %s\n", prog, PACKAGE_VERSION, GIT_MESSAGE);
+#elif defined(GIT_MESSAGE)
+ printf("%s: built from %s\n", prog, GIT_MESSAGE);
+#endif
+ return 0;
+}
+EOF
+fi
+
+# Change back to working dir for the remaining output file manipulations.
+cd "$working_dir"
+
+# If necessary, overwrite outdated output file with new one
+if [ "x$outfile" != "x-" ]
+then
+ if [ -f "$outfile" ]; then
+ if [ "x$keep_if_no_repo" = "xyes" ] && [ "x$git_repo" = "xno" ]; then
+ "$quiet" || echo "$self: Not a git repo, keeping existing $outfile" >&2
+ rm -f "$outfile.new"
+ elif cmp "$outfile" "$outfile.new" > /dev/null; then
+ "$quiet" || echo "$self: Output is unchanged, keeping $outfile" >&2
+ rm -f "$outfile.new"
+ else
+ echo "$self: Output has changed, updating $outfile" >&2
+ mv -f "$outfile.new" "$outfile"
+ fi
+ else
+ echo "$self: Output is new file, creating $outfile" >&2
+ mv -f "$outfile.new" "$outfile"
+ fi
+fi
+
+# THE END.
\ No newline at end of file
projects / icinga2 / commitdiff