externalTests: Generalize force_truffle_solc_modules and make it use symlinks instead of redownloading solc-js

test/externalTests/colony.sh

@@ -52,7 +52,7 @@ function colony_test
     cd ..
 
     replace_version_pragmas
-    force_truffle_solc_modules "$SOLJSON"
+    force_solc_modules "${DIR}/solc"
 
     for level in $(seq "$min_optimizer_level" "$max_optimizer_level"); do
         truffle_run_test "$config_file" "${DIR}/solc" "$level" compile_fn test_fn

test/externalTests/common.sh

@@ -112,25 +112,22 @@ function neutralize_package_json_hooks
     sed -i 's|"prepare": *".*"|"prepare": ""|g' package.json
 }
 
-function force_truffle_solc_modules
+function force_solc_modules
 {
-    local soljson="$1"
+    local custom_solcjs_path="${1:-solc/}"
 
-    # Replace solc package by v0.5.0 and then overwrite with current version.
-    printLog "Forcing solc version for all Truffle modules..."
-    for d in node_modules node_modules/truffle/node_modules
+    [[ -d node_modules/ ]] || assertFail
+
+    printLog "Replacing all installed solc-js with a link to the latest version..."
+    soljson_binaries=$(find node_modules -type f -path "*/solc/soljson.js")
+    for soljson_binary in $soljson_binaries
     do
-    (
-        if [ -d "$d" ]; then
-            cd $d
-            rm -rf solc
-            git clone --depth 1 -b master https://github.com/ethereum/solc-js.git solc
-            cp "$soljson" solc/soljson.js
+        local solc_module_path
+        solc_module_path=$(dirname "$soljson_binary")
 
-            cd solc
-            npm install
-        fi
-    )
+        printLog "Found and replaced solc-js in $solc_module_path"
+        rm -r "$solc_module_path"
+        ln -s "$custom_solcjs_path" "$solc_module_path"
     done
 }
 

test/externalTests/ens.sh

@@ -50,7 +50,7 @@ function ens_test
     npm install
 
     replace_version_pragmas
-    force_truffle_solc_modules "$SOLJSON"
+    force_solc_modules "${DIR}/solc"
 
     for level in $(seq "$min_optimizer_level" "$max_optimizer_level"); do
         truffle_run_test "$config_file" "${DIR}/solc" "$level" compile_fn test_fn

test/externalTests/gnosis-v2.sh

@@ -51,7 +51,7 @@ function gnosis_safe_test
     npm install --package-lock
 
     replace_version_pragmas
-    force_truffle_solc_modules "$SOLJSON"
+    force_solc_modules "${DIR}/solc"
 
     for level in $(seq "$min_optimizer_level" "$max_optimizer_level"); do
         truffle_run_test "$config_file" "${DIR}/solc" "$level" compile_fn test_fn

test/externalTests/gnosis.sh

@@ -49,7 +49,7 @@ function gnosis_safe_test
     npm install --package-lock
 
     replace_version_pragmas
-    force_truffle_solc_modules "$SOLJSON"
+    force_solc_modules "${DIR}/solc"
 
     for level in $(seq "$min_optimizer_level" "$max_optimizer_level"); do
         truffle_run_test "$config_file" "${DIR}/solc" "$level" compile_fn test_fn

test/externalTests/zeppelin.sh

@@ -46,7 +46,7 @@ function zeppelin_test
     npm install
 
     replace_version_pragmas
-    force_truffle_solc_modules "$SOLJSON"
+    force_solc_modules "${DIR}/solc"
 
     for level in $(seq "$min_optimizer_level" "$max_optimizer_level"); do
         truffle_run_test "$config_file" "${DIR}/solc" "$level" compile_fn test_fn