8000 Bazel aspects: allow sharing source jars and allow empty sourcejars by antonsviridov-src · Pull Request #757 · sourcegraph/scip-java · GitHub
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Bazel aspects: allow sharing source jars and allow empty sourcejars #757

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Merged
merged 2 commits into from
Nov 6, 2024
Merged

Bazel aspects: allow sharing source jars and allow empty sourcejars #757

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09ef011
Use labelname when declaring output for unzipped sourcejar
antonsviridov-src Oct 30, 2024
fbf2cf1
Handle empty source jars
antonsviridov-src Oct 30, 2024
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15 changes: 15 additions & 0 deletions examples/bazel-example/src/main/java/srcjar_example/BUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,25 @@ genrule(
cmd = "echo 'package com.testing; public class Bar {};' > Bar.java && jar cf $(@) Bar.java",
)

genrule(
name = "empty-srcjar",
outs = ["empty.srcjar"],
cmd = "touch test.txt && zip $(@) test.txt && zip -d $(@) test.txt",
)

java_library(
name = "testing",
srcs = [
"Foo.java",
":generated-srcjar",
":empty-srcjar"
],
)

java_library(
name = "other_library",
srcs = [
"Baz.java", # create a new file in source at test/Baz.java, alongside test/Foo.java
":generated-srcjar",
],
)
7 changes: 7 additions & 0 deletions examples/bazel-example/src/main/java/srcjar_example/Baz.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
package com.testing;

public class Baz {
public Bar baz(Bar value) {
return value;
}
}
4 changes: 2 additions & 2 deletions scip-java/src/main/resources/scip-java/scip_java.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -70,15 +70,15 @@ def _scip_java(target, ctx):
output_dir = []

for source_jar in source_jars:
dir = ctx.actions.declare_directory("extracted_srcjar/" + source_jar.short_path)
dir = ctx.actions.declare_directory(ctx.label.name + "/extracted_srcjar/" + source_jar.short_path)
output_dir.append(dir)

ctx.actions.run_shell(
inputs = javac_action.inputs,
outputs = [dir],
mnemonic 8A18 = "ExtractSourceJars",
command = """
unzip {input_file} -d {output_dir}
[ "$(unzip -q -l {input_file} | wc -l)" -eq 0 ] || unzip {input_file} -d {output_dir}
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Inexplicably, unzip returns a 1 exit code if there are any warnings (see Diagnostics on https://linux.die.net/man/1/unzip) with no way to turn it off.

So we just literally count the number of files..

""".format(
output_dir = dir.path,
input_file = source_jar.path,
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