Build jgit.jar and jgit_src.zip alongside jgit CLI wrapper

When we build jgit the CLI executable we have the classes already
compiled so we can easily construct a jgit.jar and jgit_src.zip
at the same time.  This makes it easier for folks who need the
library and not the command line interface package.

We do not include JSch in jgit.jar as we assume the downstream
user can supply us the package.  In an IDE scenario it is quite
likely the IDE already has a copy of JSch available for use, so
we really don't want to supply our own and potentially put two
different versions on the classpath.

The version we embed within our JAR manifest is now more like
the dotted format used by C Git or git-gui.  In particular we
embed the "-dirty" suffix if the tree contains modifications.

Signed-off-by: Shawn O. Pearce <[email protected]>
Signed-off-by: Robin Rosenberg <[email protected]>

Author: spearce

.gitignore

@@ -1 +1,3 @@
 /jgit
+/jgit.jar
+/jgit_src.zip

make_jgit.sh

@@ -1,6 +1,9 @@
 #!/bin/sh
 
-O=jgit
+O_CLI=jgit
+O_JAR=jgit.jar
+O_SRC=jgit_src.zip
+
 PLUGINS="
 	org.spearce.jgit
 	org.spearce.jgit.pgm
@@ -11,7 +14,7 @@ JARS="
 "
 
 PSEP=":"
-T=".temp$$.$O"
+T=".temp$$.$O_CLI"
 T_MF="$T.MF"
 R=`pwd`
 if [ "$OSTYPE" = "cygwin" ]
@@ -30,7 +33,7 @@ then
 fi
 
 cleanup_bin() {
-	rm -f $T $O+ $T_MF
+	rm -f $T $O_CLI+ $O_JAR+ $O_SRC+ $T_MF
 	for p in $PLUGINS
 	do
 		rm -rf $p/bin2
@@ -39,13 +42,21 @@ cleanup_bin() {
 
 die() {
 	cleanup_bin
-	rm -f $O
+	rm -f $O_CLI $O_JAR $O_SRC
 	echo >&2 "$@"
 	exit 1
 }
 
 cleanup_bin
-rm -f $O
+rm -f $O_CLI $O_JAR $O_SRC
+
+VN=`git describe --abbrev=4 HEAD 2>/dev/null`
+git update-index -q --refresh
+if [ -n "`git diff-index --name-only HEAD --`" ]
+then
+	VN="$VN-dirty"
+fi
+VN=`echo "$VN" | sed -e s/-/./g`
 
 CLASSPATH=
 for j in $JARS
@@ -73,20 +84,39 @@ do
 		-d ../bin2) || die "Building $p failed."
 	CLASSPATH="${CLASSPATH}${PSEP}$R/$p/bin2"
 done
+echo
 
+echo "Version $VN" &&
 echo Manifest-Version: 1.0 >$T_MF &&
 echo Implementation-Title: jgit >>$T_MF &&
-echo Implementation-Version: `git describe HEAD` >>$T_MF &&
+echo Implementation-Version: $VN >>$T_MF &&
+
+java org.spearce.jgit.pgm.build.JarLinkUtil \
+	-include org.spearce.jgit/bin2 \
+	-file META-INF/MANIFEST.MF=$T_MF \
+	>$O_JAR+ &&
+chmod 555 $O_JAR+ &&
+mv $O_JAR+ $O_JAR &&
+echo "Created $O_JAR." &&
+
+java org.spearce.jgit.pgm.build.JarLinkUtil \
+	-include org.spearce.jgit/src \
+	-file META-INF/MANIFEST.MF=$T_MF \
+	>$O_SRC+ &&
+chmod 555 $O_SRC+ &&
+mv $O_SRC+ $O_SRC &&
+echo "Created $O_SRC." &&
 
-sed s/@@use_self@@/1/ jgit.sh >$O+ &&
+M_TB=META-INF/services/org.spearce.jgit.pgm.TextBuiltin &&
+sed s/@@use_self@@/1/ jgit.sh >$O_CLI+ &&
 java org.spearce.jgit.pgm.build.JarLinkUtil \
 	`for p in $JARS   ; do printf %s " -include $p"     ;done` \
 	`for p in $PLUGINS; do printf %s " -include $p/bin2";done` \
-	-file META-INF/services/org.spearce.jgit.pgm.TextBuiltin=org.spearce.jgit.pgm/src/META-INF/services/org.spearce.jgit.pgm.TextBuiltin \
+	-file $M_TB=org.spearce.jgit.pgm/src/$M_TB \
 	-file META-INF/MANIFEST.MF=$T_MF \
-	>>$O+ &&
-chmod 555 $O+ &&
-mv $O+ $O &&
-echo "Created $O." || die "Creating $O failed."
+	>>$O_CLI+ &&
+chmod 555 $O_CLI+ &&
+mv $O_CLI+ $O_CLI &&
+echo "Created $O_CLI." || die "Build failed."
 
 cleanup_bin