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Add resource support, minor cleanups
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@oscar-stripe
oscar-stripe committed Sep 13, 2016
1 parent 61b3b57 commit cd24529
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Showing 4 changed files with 81 additions and 102 deletions.
85 changes: 5 additions & 80 deletions scala/scala.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -128,9 +128,6 @@ def _collect_plugin_paths(plugins):

def _compile(ctx, _jars, dep_srcjars, buildijar):
jars = _jars
cp_resources = _add_resources_cmd(
ctx, "{out}_tmp".format(out=ctx.outputs.jar.path)
)
ijar_output_path = ""
ijar_cmd_path = ""
if buildijar:
Expand All @@ -145,9 +142,6 @@ def _compile(ctx, _jars, dep_srcjars, buildijar):
plugins = _collect_plugin_paths(ctx.attr.plugins)
plugin_arg = ",".join(list(plugins))

# Set up the args to pass to scalac because they can be too long for bash
scalac_args_file = ctx.new_file(ctx.outputs.jar, ctx.label.name + "_scalac_args") # noqa

compiler_classpath = '{scalalib}:{scalacompiler}:{scalareflect}:{jars}'.format( # noqa
scalalib=ctx.file._scalalib.path,
scalacompiler=ctx.file._scalacompiler.path,
Expand All @@ -170,6 +164,8 @@ JavacPath: {javac_path}
JavacOpts: {javac_opts}
JavaFiles: {java_files}
JvmFlags: {jvm_flags}
ResourceSrcs: {resource_src}
ResourceDests: {resource_dest}
""".format(
out=ctx.outputs.jar.path, # 0
manifest=ctx.outputs.manifest.path, # 1
Expand All @@ -185,81 +181,16 @@ JvmFlags: {jvm_flags}
javac_path=ctx.file._javac.path,
java_files=",".join([f.path for f in java_srcs]),
jvm_flags=" ".join(["-J" + flag for flag in ctx.attr.jvm_flags]),
resource_src=",".join([f.path for f in ctx.files.resources]),
resource_dest=",".join([_adjust_resources_path(f.path)[1] for f in ctx.files.resources]),
)
ctx.file_action(output=scalac_args_file, content=scalac_args)
javac_sources_cmd = ""
compile_java_srcs = len(java_srcs) != 0
if (compile_java_srcs):
# Set up the args to pass to javac because they can be
# too long for bash
javac_args_file = ctx.new_file(
ctx.outputs.jar,
ctx.label.name + "_javac_args")

javac_args = """{javac_opts} -classpath "{jars}:{out}_tmp" -d {out}_tmp {files}""".format( # noqa
javac_opts=" ".join(ctx.attr.javacopts),
jars=":".join([j.path for j in jars]),
files=" ".join([f.path for f in java_srcs]),
out=ctx.outputs.jar.path
)
ctx.file_action(output=javac_args_file, content=javac_args)
javac_sources_cmd = """
cat {javac_args} {{out}}_args/files_from_jar > {{out}}_args/java_args
{javac} {{jvm_flags}} @{{out}}_args/java_args""".format(
javac_args=javac_args_file.path,
javac=ctx.file._javac.path
)

# srcjar_cmd = ""
# if len(all_srcjars) > 0:
# srcjar_cmd = "\nmkdir -p {out}_tmp_expand_srcjars\n"
# for srcjar in all_srcjars:
# # Note: this is double escaped because
# # we need to do one format call
# # per each srcjar, but then we are going to include
# # this in the bigger format
# # call that is done to generate the full command

# # TODO would like to be able to switch >/dev/null, -v,
# # etc based on the user's settings
# srcjar_cmd += """
# unzip -o {srcjar} -d {{out}}_tmp_expand_srcjars >/dev/null
# """.format(
# srcjar=srcjar.path)
# srcjar_cmd += """find {out}_tmp_expand_srcjars """
# srcjar_cmd += """-type f -name "*.scala"""
# srcjar_cmd += """ > {out}_args/files_from_jar\n"""
# TODO ADD RESOURCES SUPPORT!
# # add any resources
# {cp_resources}

# TODO add source jar support
# touch {out}_args/files_from_jar
# mkdir -p {out}_tmp""" + srcjar_cmd + """
# {out}_args/files_from_jar

# TODO why this path here?
argfile = ctx.new_file(
ctx.configuration.bin_dir,
"%s_worker_input" % ctx.label.name
)
ctx.file_action(output=argfile, content=scalac_args)

# cmd = """
# cat {scalac_args} > {out}_args/scala_args
# {java} -jar {scalac} {jvm_flags} @{out}_args/scala_args""" + javac_sources_cmd + """
# """ + ijar_cmd
# cmd = cmd.format(
# cp_resources=cp_resources,
# java=ctx.file._java.path,
# jvm_flags=" ".join(["-J" + flag for flag in ctx.attr.jvm_flags]),
# scalac=_get_scalac_jar_path(ctx.files._scalac),
# scalac_args=scalac_args_file.path,
# out=ctx.outputs.jar.path,
# manifest=ctx.outputs.manifest.path,
# jar=_get_jar_path(ctx.files._jar),
# ijar=ctx.file._ijar.path,
# )

outs = [ctx.outputs.jar]
if buildijar:
outs.extend([ctx.outputs.ijar])
Expand All @@ -271,20 +202,14 @@ JvmFlags: {jvm_flags}
ctx.files.plugins +
ctx.files.resources +
ctx.files._jdk +
ctx.files._scalac +
ctx.files._jar +
ctx.files._scalasdk +
[ctx.outputs.manifest,
ctx.file._ijar,
ctx.file._java,
scalac_args_file,
argfile])
if compile_java_srcs:
ins.extend([javac_args_file])
ctx.action(
inputs=ins,
outputs=outs,
# command=cmd,
executable=ctx.executable._scalac,
mnemonic="Scalac",
progress_message="scala %s" % ctx.label,
Expand Down
15 changes: 15 additions & 0 deletions src/java/io/bazel/rulesscala/scalac/CompileOptions.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ public class CompileOptions {
final public String javacPath;
final public String javacOpts;
final public String jvmFlags;
final public Map<String, String> resourceFiles;

public CompileOptions(List<String> args) {
Map<String, String> argMap = buildArgMap(args);
Expand Down Expand Up @@ -47,6 +48,20 @@ public CompileOptions(List<String> args) {
ijarOutput = null;
ijarCmdPath = null;
}
resourceFiles = getResources(argMap);
}

private static Map<String, String> getResources(Map<String, String> args) {
String[] keys = getCommaList(args, "ResourceSrcs");
String[] vals = getCommaList(args, "ResourceDests");
if (keys.length != vals.length)
throw new RuntimeException(String.format("mismatch in resources: keys: %s vals: %s",
getOrEmpty(args, "ResourceSrcs"), getOrEmpty(args, "ResourceDests")));
HashMap<String, String> res = new HashMap();
for(int idx = 0; idx < keys.length; idx++) {
res.put(keys[idx], vals[idx]);
}
return res;
}

private static HashMap<String, String> buildArgMap(List<String> lines) {
Expand Down
45 changes: 42 additions & 3 deletions src/java/io/bazel/rulesscala/scalac/ScalaCInvoker.java
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Original file line number Diff line number Diff line change
Expand Up @@ -31,10 +31,13 @@
import java.io.IOException;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.FileSystems;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
Expand Down Expand Up @@ -222,13 +225,15 @@ public static String[] merge(String[]... arrays) {
}

private static void processRequest(List<String> args) throws Exception {
Path tmpPath = null;
try {
if (args.size() == 1 && args.get(0).startsWith("@")) {
args = Files.readAllLines(Paths.get(args.get(0).substring(1)), UTF_8);
}
CompileOptions ops = new CompileOptions(args);

Path outputPath = FileSystems.getDefault().getPath(ops.outputName);
Path tmpPath = Files.createTempDirectory(outputPath.getParent(), "tmp");
tmpPath = Files.createTempDirectory(outputPath.getParent(), "tmp");
String[] constParams = {
"-classpath",
ops.classpath,
Expand Down Expand Up @@ -283,6 +288,10 @@ private static void processRequest(List<String> args) throws Exception {
throw new RuntimeException("javac process failed!");
}
}
/**
* Copy the resources
*/
copyResources(ops.resourceFiles, tmpPath);
/**
* Now build the output jar
*/
Expand All @@ -306,10 +315,40 @@ private static void processRequest(List<String> args) throws Exception {
if(exitCode != 0) {
throw new RuntimeException("ijar process failed!");
}
// System.out.println("exitCode = " + exitCode);
}
// System.out.println("Success");
}
}
finally {
removeTmp(tmpPath);
}
}
private static void removeTmp(Path tmp) throws IOException {
if (tmp != null) {
Files.walkFileTree(tmp, new SimpleFileVisitor<Path>() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.delete(file);
return FileVisitResult.CONTINUE;
}

@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
Files.delete(dir);
return FileVisitResult.CONTINUE;
}
});
}
}
private static void copyResources(Map<String, String> resources, Path dest) throws IOException {
for(Entry<String, String> e : resources.entrySet()) {
Path source = Paths.get(e.getKey());
String dstr = e.getValue();
if (dstr.charAt(0) == '/') dstr = dstr.substring(1);
Path target = dest.resolve(dstr);
File tfile = target.getParent().toFile();
tfile.mkdirs();
Files.copy(source, target);
}
}

public static void main(String[] args) {
Expand Down
38 changes: 19 additions & 19 deletions test/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -9,25 +9,25 @@ load("//scala:scala.bzl",
# The examples below show how to combine Scala and Java rules.
# ScalaBinary is the Scala equivalent of JavaBinary.

# java_binary(
# name = "JavaBinary",
# srcs = ["JavaBinary.java"],
# main_class = "scala.test.JavaBinary",
# deps = [":lib_import"],
# )

# # TODO(bazel-team): Allow java rules to depend directly on scala_library.
# # For now, we have to use a java_import proxy.
# java_import(
# name = "lib_import",
# # these are the outputs of the scala_library targets
# jars = [":HelloLib_deploy.jar",
# "OtherLib_deploy.jar",
# "Exported_deploy.jar",
# "Runtime_deploy.jar",
# ],
# runtime_deps = ["org_scala_lang__scala_library", "OtherJavaLib"]
# )
java_binary(
name = "JavaBinary",
srcs = ["JavaBinary.java"],
main_class = "scala.test.JavaBinary",
deps = [":lib_import"],
)

# TODO(bazel-team): Allow java rules to depend directly on scala_library.
# For now, we have to use a java_import proxy.
java_import(
name = "lib_import",
# these are the outputs of the scala_library targets
jars = [":HelloLib_deploy.jar",
"OtherLib_deploy.jar",
"Exported_deploy.jar",
"Runtime_deploy.jar",
],
runtime_deps = ["org_scala_lang__scala_library", "OtherJavaLib"]
)

scala_export_to_java(
name = "lib_import_2",
Expand Down

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