[tor-commits] [tor/master] Change our build process to run Cargo from inside the build tree

[nickm@xxxxxxxxxxxxxx]

commit 1969d573637ee6f9c539733db8405c72f0e2e4ab
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Dec 5 08:30:26 2017 -0500

    Change our build process to run Cargo from inside the build tree
    
    Instead of using the cwd to specify the location of Cargo.toml, we
    use the --manifest-path option to specify its location explicitly.
    
    This works around the bug that isis diagnosed on our jenkins builds.
---
 changes/cargo-build-problem  |  3 +++
 src/rust/tor_rust/include.am | 12 ++++++++----
 src/test/test_rust.sh        |  8 ++++++--
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/changes/cargo-build-problem b/changes/cargo-build-problem
new file mode 100644
index 000000000..6691b0efc
--- /dev/null
+++ b/changes/cargo-build-problem
@@ -0,0 +1,3 @@
+  o Minor bugfixes (compilation, rust):
+    - Build correctly when building from outside Tor's source tree with the
+      TOR_RUST_DEPENDENCIES option set. Fixes bug 22768; bugfix on 0.3.1.7.
diff --git a/src/rust/tor_rust/include.am b/src/rust/tor_rust/include.am
index 79361c33c..c02324cb7 100644
--- a/src/rust/tor_rust/include.am
+++ b/src/rust/tor_rust/include.am
@@ -5,16 +5,20 @@ EXTRA_DIST +=\
 EXTRA_CARGO_OPTIONS=
 
 src/rust/target/release/@TOR_RUST_STATIC_NAME@: FORCE
-	( cd "$(abs_top_srcdir)/src/rust/tor_rust" ; \
+	( cd "$(abs_top_builddir)/src/rust" ; \
 		CARGO_TARGET_DIR="$(abs_top_builddir)/src/rust/target" \
 		CARGO_HOME="$(abs_top_builddir)/src/rust" \
-		$(CARGO) build --release $(EXTRA_CARGO_OPTIONS) $(CARGO_ONLINE) )
+		$(CARGO) build --release $(EXTRA_CARGO_OPTIONS) \
+	        $(CARGO_ONLINE) \
+                --manifest-path "$(abs_top_srcdir)/src/rust/tor_rust/Cargo.toml" )
 
 distclean-rust:
-	( cd "$(abs_top_srcdir)/src/rust/tor_rust" ; \
+	( cd "$(abs_top_builddir)/src/rust" ; \
 		CARGO_TARGET_DIR="$(abs_top_builddir)/src/rust/target" \
 		CARGO_HOME="$(abs_top_builddir)/src/rust" \
-		$(CARGO) clean $(EXTRA_CARGO_OPTIONS) $(CARGO_ONLINE) )
+		$(CARGO) clean $(EXTRA_CARGO_OPTIONS) \
+	        $(CARGO_ONLINE) \
+                --manifest-path "$(abs_top_srcdir)/src/rust/tor_rust/Cargo.toml" )
 	rm -rf "$(abs_top_builddir)/src/rust/registry"
 
 if USE_RUST
diff --git a/src/test/test_rust.sh b/src/test/test_rust.sh
index 8d7900e1d..133f2bb94 100755
--- a/src/test/test_rust.sh
+++ b/src/test/test_rust.sh
@@ -8,8 +8,12 @@ exitcode=0
 set -e
 
 for crate in $crates; do
-    cd "${abs_top_srcdir:-.}/src/rust/${crate}"
-    CARGO_TARGET_DIR="${abs_top_builddir:-../../..}/src/rust/target" CARGO_HOME="${abs_top_builddir:-../../..}/src/rust" "${CARGO:-cargo}" test ${CARGO_ONLINE-"--frozen"} || exitcode=1
+    cd "${abs_top_builddir:-../../..}/src/rust"
+    CARGO_TARGET_DIR="${abs_top_builddir:-../../..}/src/rust/target" \
+      CARGO_HOME="${abs_top_builddir:-../../..}/src/rust" \
+      "${CARGO:-cargo}" test ${CARGO_ONLINE-"--frozen"} \
+      --manifest-path "${abs_top_srcdir:-.}/src/rust/${crate}/Cargo.toml" \
+	|| exitcode=1
     cd -
 done
 

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