The script to generate input for the cross-referencing pipeline.

Bug: 137977523
Test: manual
Change-Id: I80faee8db12f0d8e85a09aa9d96fbfc04af19bf8

build_kzip.bash

@@ -0,0 +1,25 @@
+# /bin/bash -uv
+#
+# Build kzip files (source files for the indexing pipeline) for the given configuration,
+# merge them and place the resulting all.kzip into $DIST_DIR.
+# It is assumed that the current directory is the top of the source tree.
+# The following enviromnet variables affect the result:
+#   TARGET_PRODUCT        target device name, e.g., `aosp_blueline`
+#   TARGET_BUILD_VARIANT  variant, e.g., `userdebug`
+#   OUT_DIR               where the build is happening (./out if not specified)
+#   DIST_DIR              where the resulting all.kzip will be placed
+#   XREF_CORPUS           source code repository URI, e.g.,
+#                        `android.googlesource.com/platform/superproject`
+
+# The extraction might fail for some source files, so run with -k
+build/soong/soong_ui.bash --build-mode --all-modules --dir=$PWD -k merge_zips xref_cxx xref_java
+
+# We build with -k, so check that we have generated at least 100K files
+# (the actual number is 180K+)
+declare -r kzip_count=$(find $OUT_DIR -name '*.kzip' | wc -l)
+(($kzip_count>100000)) || { printf "Too few kzip files were generated: %d\n" $kzip_count; exit 1; }
+
+# Pack
+# TODO(asmundak): this should be done by soong.
+declare -r allkzip=all.kzip
+"$OUT_DIR/soong/host/linux-x86/bin/merge_zips" "$DIST_DIR/$allkzip" @<(find $OUT_DIR -name '*.kzip')