The silver searcher to rust

.gitignore

@@ -19,11 +19,14 @@ config.status
 config.sub
 configure
 depcomp
+html/
+Doxyfile
 gmon.out
 install-sh
 Makefile
 Makefile.in
 missing
+rust/target
 src/config.h*
 stamp-h1
 tests/*.err

Makefile.am

@@ -13,6 +13,49 @@ dist_zshcomp_DATA = _the_silver_searcher
 
 EXTRA_DIST = Makefile.w32 LICENSE NOTICE the_silver_searcher.spec README.md
 
+#########################################################################################
+
+RUST_SOURCE =\
+	rust/Cargo.toml\
+	rust/src/lib.rs
+
+RUST_EXTRA =\
+	rust/Cargo.lock
+
+if DEBUG_RELEASE
+CARGO_RELEASE_ARGS=
+else
+CARGO_RELEASE_ARGS=--release
+endif
+
+rust_dir = $(top_srcdir)/rust
+
+check-local-rust:
+	cd $(rust_dir) && \
+	CARGO_TARGET_DIR=target cargo test
+
+clean-local-rust:
+	cd $(rust_dir) && \
+	cargo clean
+
+RUST_LIB=$(rust_dir)/target/@RUST_TARGET_SUBDIR@/librust_internals.a
+
+$(RUST_LIB): $(RUST_SOURCE)
+	cd $(rust_dir) && \
+	CARGO_TARGET_DIR=target cargo build --verbose $(CARGO_RELEASE_ARGS)
+
+EXTRA_DIST += \
+	$(RUST_SOURCE) \
+	$(RUST_EXTRA)
+
+ag_LDADD += $(RUST_LIB)
+
+# solve undefined reference to 'dlsym' caused by newer
+# versions of gcc/ld default to linking with --as-needed.
+ag_LDFLAGS = -Wl,--no-as-needed -ldl
+
+#########################################################################################
+
 all:
 	@$(MAKE) ag -r
 

README.md

@@ -1,3 +1,18 @@
+# The Silver Searcher - Incremental manual transpilation to Rust
+
+Hi there!
+
+First of all, thank you for your work on this beautiful tool and for sharing it for free!
+
+About this pull request:
+As part of my Bachelor thesis in Computer Science at the Technische Universität Darmstadt, I forumlated a "recipe" to do manual and incremental C to Rust transpilation and applied it on your project's filter and ignore functionalities.
+Of course it would be great if you considered merging this pull request or branching off in your repository, but apart from that even some sort of smallish feedback would mean a lot coming from you and may substanciate further work on this topic.
+For about 5 months, I will keep working on this with my thesis' supervisor, and, if everything works out, we will publish a paper - so thank you very much if you should find the time to contribute and help me pacing forward in this direction!
+
+Best
+Phil
+
+
 # The Silver Searcher
 
 A code searching tool similar to `ack`, with a focus on speed.

clean.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+make clean-local-rust && make clean && make distclean

configure.ac

@@ -81,4 +81,26 @@ AM_COND_IF(
     [AC_MSG_WARN([clang-format not found. 'make test' will not detect improperly-formatted files.])]
 )
 
+###############################################################################################
+
+AC_ARG_ENABLE(debug,
+              AC_HELP_STRING([--enable-debug],
+                             [Build Rust code with debugging information [default=no]]),
+              [debug_release=$enableval],
+              [debug_release=no])
+
+AC_MSG_CHECKING(whether to build Rust code with debugging information)
+if test "x$debug_release" = "xyes" ; then
+	AC_MSG_RESULT(yes)
+	RUST_TARGET_SUBDIR=debug
+else
+	AC_MSG_RESULT(no)
+	RUST_TARGET_SUBDIR=release
+fi
+AM_CONDITIONAL([DEBUG_RELEASE], [test "x$debug_release" = "xyes"])
+
+AC_SUBST([RUST_TARGET_SUBDIR])
+
+###############################################################################################
+
 AC_OUTPUT