ci: test build outputs

This modifies CI to check that we generate completion files and a man
page.

We also enable tests on arm.

ci/script.sh

@@ -7,14 +7,49 @@ set -ex
 . "$(dirname $0)/utils.sh"
 
 main() {
-    # disable_cross_doctests
+    # Travis sometimes caches the target directory, which makes testing the
+    # output of cargo a little trickier. So just wipe it.
+    cargo clean
+    # Test a normal debug build.
     cargo build --target "${TARGET}" --verbose --all
-    if [ "$(architecture)" = "amd64" ] || [ "$(architecture)" = "i386" ]; then
-        cargo test --target "${TARGET}" --verbose --all
-        "$( dirname "${0}" )/test_complete.sh"
-    fi
+
+    # Show the output of build.rs stderr.
+    set +x
+    find ./target/"$TARGET"/debug -name stderr | while read stderr; do
+      if [ -s "$stderr" ]; then
+        echo "===== $stderr ====="
+        cat "$stderr"
+        echo "====="
+      fi
+    done
+    set -x
+
     # sanity check the file type
-    file target/$TARGET/debug/rg
+    file target/"$TARGET"/debug/rg
+
+    # Apparently tests don't work on arm, so just bail now. I guess we provide
+    # ARM releases on a best effort basis?
+    if is_arm; then
+      return 0
+    fi
+
+    # Test that zsh completions are in sync with ripgrep's actual args.
+    "$(dirname "${0}")/test_complete.sh"
+
+    # Check that we've generated man page and other shell completions.
+    find ./target/"$TARGET"/debug/build/ripgrep-* -name 'out' | \
+        while read outdir; do
+          file "$outdir/rg.bash"
+          file "$outdir/rg.fish"
+          file "$outdir/_rg.ps1"
+          # man page requires asciidoc, and we only install it on Linux x86.
+          if is_linux; then
+              file "$outdir/rg.1"
+          fi
+        done
+
+    # Run tests for ripgrep and all sub-crates.
+    cargo test --target "${TARGET}" --verbose --all
 }
 
 main