version.hh: make the utilities aware of their version

.gitignore

@@ -1,2 +1,3 @@
 /csdiff_build
 /tags
+/version.cc

CMakeLists.txt

@@ -69,6 +69,7 @@ add_library(cs STATIC
     instream.cc
     json-parser.cc
     json-writer.cc
+    version.cc
     ${flex_scanner}
 )
 

Makefile

@@ -27,12 +27,12 @@ CMAKE_BUILD_TYPE ?= RelWithDebInfo
 
 .PHONY: all check clean cppcheck distclean distcheck fast install
 
-all:
+all: version.cc
 	mkdir -p csdiff_build
 	cd csdiff_build && $(CMAKE) -D 'CMAKE_BUILD_TYPE=$(CMAKE_BUILD_TYPE)' ..
 	$(MAKE) -C csdiff_build
 
-fast:
+fast: version.cc
 	$(MAKE) -sC csdiff_build
 
 check: all
@@ -43,6 +43,7 @@ cppcheck: all
 
 clean:
 	if test -e csdiff_build/Makefile; then $(MAKE) clean -C csdiff_build; fi
+	if test -e .git; then rm -f version.cc; fi
 
 distclean:
 	rm -rf csdiff_build
@@ -52,3 +53,12 @@ distcheck: distclean
 
 install: all
 	$(MAKE) -C csdiff_build install
+
+version.cc:
+	@if test -e .git; then \
+		printf "#include \"version.hh\"\nconst char *CS_VERSION = \"%s\";\n" \
+			"0.`git log --pretty="%cd_%h" --date=short -1 | tr -d -`" \
+			> $@.tmp \
+			&& install -m0644 -C -v $@.tmp $@ \
+			&& rm -f $@.tmp; \
+		fi

csdiff.cc

@@ -20,6 +20,7 @@
 #include "csdiff-core.hh"
 #include "csfilter.hh"
 #include "instream.hh"
+#include "version.hh"
 
 #include <cstdlib>
 
@@ -49,7 +50,8 @@ int main(int argc, char *argv[])
             ("quiet,q", "do not report any parsing errors")
             ("file-rename,s", po::value<TStringList>(),
              "account the file base-name change, [OLD,NEW] (*testing*)")
-            ("help", "produce help message");
+            ("help", "produce help message")
+            ("version", "print version");
 
         po::options_description hidden("");
         hidden.add_options()
@@ -77,6 +79,11 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+    if (vm.count("version")) {
+        std::cout << CS_VERSION << "\n";
+        return 0;
+    }
+
     const bool forceCov  = !!vm.count("coverity-output");
     const bool forceJson = !!vm.count("json-output");
     if (forceCov && forceJson) {

cshtml.cc

@@ -21,6 +21,7 @@
 #include "deflookup.hh"
 #include "html-writer.hh"
 #include "instream.hh"
+#include "version.hh"
 
 #include <boost/program_options.hpp>
 #include <boost/regex.hpp>
@@ -63,7 +64,8 @@ int main(int argc, char *argv[])
              po::value<string>(&spPosition)->default_value("top"),
              "placement of the table with scan properties: top, bottom, none")
             ("quiet,q", "do not report any parsing errors")
-            ("help", "produce help message");
+            ("help", "produce help message")
+            ("version", "print version");
 
         po::options_description hidden("");
         hidden.add_options()
@@ -91,6 +93,11 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+    if (vm.count("version")) {
+        std::cout << CS_VERSION << "\n";
+        return 0;
+    }
+
     if (!vm.count("input-file")) {
         desc.print(std::cerr);
         return 1;

cslinker.cc

@@ -21,6 +21,7 @@
 #include "defqueue.hh"
 #include "instream.hh"
 #include "json-writer.hh"
+#include "version.hh"
 
 #include <boost/program_options.hpp>
 #include <boost/property_tree/ini_parser.hpp>
@@ -139,7 +140,8 @@ int main(int argc, char *argv[])
     try {
         desc.add_options()
             ("quiet,q", "do not report any parsing errors")
-            ("help", "produce help message");
+            ("help", "produce help message")
+            ("version", "print version");
 
         po::options_description hidden("");
         hidden.add_options()
@@ -167,6 +169,11 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+    if (vm.count("version")) {
+        std::cout << CS_VERSION << "\n";
+        return 0;
+    }
+
     if (!vm.count("input-file")) {
         desc.print(std::cerr);
         return 1;

cssort.cc

@@ -18,6 +18,7 @@
  */
 
 #include "abstract-writer.hh"
+#include "version.hh"
 
 #include <boost/foreach.hpp>
 #include <boost/program_options.hpp>
@@ -188,7 +189,8 @@ int main(int argc, char *argv[])
             ("key", po::value<string>(&key)->default_value("path"),
              "checker, path")
             ("help", "produce help message")
-            ("quiet,q", "do not report any parsing errors");
+            ("quiet,q", "do not report any parsing errors")
+            ("version", "print version");
 
         po::options_description hidden("");
         hidden.add_options()
@@ -216,6 +218,11 @@ int main(int argc, char *argv[])
         return 0;
     }
 
+    if (vm.count("version")) {
+        std::cout << CS_VERSION << "\n";
+        return 0;
+    }
+
     SortFactory factory;
     AbstractWriter *eng = factory.create(key);
     if (!eng) {

cstat-core.cc

@@ -23,6 +23,7 @@
 #include "abstract-filter.hh"
 #include "cswriter.hh"
 #include "json-writer.hh"
+#include "version.hh"
 
 #include <cstdlib>
 #include <fstream>
@@ -434,7 +435,8 @@ int cStatCore(int argc, char *argv[], const char *defMode)
              "match source path by the given regex")
             ("quiet,q", "do not report any parsing errors")
             ("src-annot", po::value<string>(),
-             "match annotations in the _source_ file by the given regex");
+             "match annotations in the _source_ file by the given regex")
+            ("version", "print version");
 
         po::options_description hidden("");
         hidden.add_options()
@@ -462,6 +464,11 @@ int cStatCore(int argc, char *argv[], const char *defMode)
         return 0;
     }
 
+    if (vm.count("version")) {
+        std::cout << CS_VERSION << "\n";
+        return 0;
+    }
+
     WriterFactory factory;
     AbstractWriter *eng = factory.create(mode);
     if (!eng) {

make-srpm.sh

@@ -41,9 +41,16 @@ cd "$PKG"                               || die "git clone failed"
 
 make -j5 distcheck CTEST='ctest -j5'    || die "'make distcheck' has failed"
 
-NV="${PKG}-$VER"
-SRC="${PKG}.tar.xz"
-git archive --prefix="$NV/" --format="tar" HEAD -- . | xz -c > "$SRC"
+NV="${PKG}-${VER}"
+mkdir "${NV}"
+mv version.cc "${NV}/"                  || die "failed to copy version.cc"
+
+SRC_TAR="${PKG}.tar"
+SRC="${SRC_TAR}.xz"
+git archive --prefix="$NV/" --format="tar" HEAD -- . > "$SRC_TAR"
+tar -rf "$SRC_TAR" "${NV}/version.cc"
+
+xz -c "$SRC_TAR" > "$SRC"               || die "failed to compress sources"
 
 SPEC="./$PKG.spec"
 cat > "$SPEC" << EOF

pycsdiff.cc

@@ -18,6 +18,7 @@
  */
 
 #include "csdiff-core.hh"
+#include "version.hh"
 
 #include <sstream>
 
@@ -34,7 +35,13 @@ std::string diff_scans(
     return strDst.str();
 }
 
+std::string get_version(void)
+{
+    return CS_VERSION;
+}
+
 BOOST_PYTHON_MODULE(pycsdiff)
 {
-    boost::python::def("diff_scans", diff_scans);
+    boost::python::def("diff_scans",        diff_scans);
+    boost::python::def("get_version",       get_version);
 }

version.hh

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2013 Red Hat, Inc.
+ *
+ * This file is part of csdiff.
+ *
+ * csdiff 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 3 of the License, or
+ * any later version.
+ *
+ * csdiff 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 csdiff.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef H_GUARD_VERSION_H
+#define H_GUARD_VERSION_H
+
+extern const char *CS_VERSION;
+
+#endif /* H_GUARD_VERSION_H */