use SETUP_CMD to skip auto-detection

3 files changed, 79 insertions, 60 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1476299..26d814b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## 11-4-stable
 
+- Allow `SETUP_CMD` to skip auto-detection of build tool
+
 ## 11-3-stable
 
 ## 11-2-stable
diff --git a/README.md b/README.md
index d58ebf8..ea4ecbd 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,17 @@ The following table shows which languages and package managers are supported.
 | Python     | [pip](https://pip.pypa.io/en/stable/)                             |
 | Ruby       | [gem](https://rubygems.org/)                                      |
 
+Inject `SETUP_CMD` to the docker command to override the given package managers
+and run your custom command to setup your environment with a custom package manager.
+
+    ```sh
+    docker run \
+      --volume "$PWD":/code \
+      --env "SETUP_CMD=./my-custom-install-script.sh" \
+      --rm \
+      registry.gitlab.com/gitlab-org/security-products/license-management:latest analyze /code
+    ```
+
 
 ## Versioning and release process
 
diff --git a/run.sh b/run.sh
index 6326f07..d82d133 100755
--- a/run.sh
+++ b/run.sh
@@ -11,7 +11,9 @@ $(basename "$0") test
 
 where:
   -h  show this help text
-  PROJECT_PATH = the path of the project to be analyzed for licenses usage."
+  PROJECT_PATH = the path of the project to be analyzed for licenses usage.
+
+  Set SETUP_CMD to skip auto-detection and use the specified command to install project dependencies."
 
 if [ $# -eq 0 ] ; then
   echo "$usage"
@@ -81,65 +83,69 @@ case "$COMMAND" in
     shift
     pushd $APP_PATH
 
-    # Before running license_finder, we need to install dependencies for the project.
-    if test -f Gemfile ; then
-      if test -n "$rvm_recommended_ruby" ; then
-        # Install the Ruby version RVM found in the project files
-        # This always end in the cryptic "bash: Searching: command not found" error but Ruby is installed
-        # So we ignore the error.
-        $($rvm_recommended_ruby) 2>/dev/null || true
-        rvm use .
-        gem install bundler
-        # We need to install the license_finder gem into this Ruby version too.
-        gem install license_finder
-      fi
-
-      # Ignore test and development dependencies.
-      license_finder ignored_groups add development
-      license_finder ignored_groups add test
-      bundle install --without "development test"
-    fi
-
-    if test -f requirements.txt ; then
-      # Install Python Pip packages.
-      pip install -r requirements.txt
-    fi
-
-    if test -f package.json ; then
-      # Install NPM packages.
-      npm install --production
-      # Try to install Peer packages too, npm install doesn't do it anymore.
-      /node_modules/.bin/npm-install-peers
-    fi
-
-    if test -f bower.json ; then
-      # Install Bower packages.
-      bower install
-    fi
-
-    # Symlink the project into GOPATH to allow fetching dependencies.
-    ln -sf `realpath $APP_PATH` /gopath/src/app
-
-    if test -f Godeps/Godeps.json ; then
-      # Install Go dependencies with Godeps.
-      pushd /gopath/src/app
-      godep restore
-      popd
-    elif find . -name "*.go" -printf "found" -quit |grep found >/dev/null ; then
-      # Install Go dependencies with go get.
-      pushd /gopath/src/app
-      go get
-      popd
-    fi
-
-    if test -f pom.xml ; then
-      # Install Java Maven dependencies.
-      mvn install
-    fi
-
-    if test -f build.gradle ; then
-      # Install Java Gradle dependencies.
-      gradle build
+    if [[ -z "${SETUP_CMD}" ]]; then
+        # Before running license_finder, we need to install dependencies for the project.
+        if test -f Gemfile ; then
+          if test -n "$rvm_recommended_ruby" ; then
+            # Install the Ruby version RVM found in the project files
+            # This always end in the cryptic "bash: Searching: command not found" error but Ruby is installed
+            # So we ignore the error.
+            $($rvm_recommended_ruby) 2>/dev/null || true
+            rvm use .
+            gem install bundler
+            # We need to install the license_finder gem into this Ruby version too.
+            gem install license_finder
+          fi
+
+          # Ignore test and development dependencies.
+          license_finder ignored_groups add development
+          license_finder ignored_groups add test
+          bundle install --without "development test"
+        fi
+
+        if test -f requirements.txt ; then
+          # Install Python Pip packages.
+          pip install -r requirements.txt
+        fi
+
+        if test -f package.json ; then
+          # Install NPM packages.
+          npm install --production
+          # Try to install Peer packages too, npm install doesn't do it anymore.
+          /node_modules/.bin/npm-install-peers
+        fi
+
+        if test -f bower.json ; then
+          # Install Bower packages.
+          bower install
+        fi
+
+        # Symlink the project into GOPATH to allow fetching dependencies.
+        ln -sf `realpath $APP_PATH` /gopath/src/app
+
+        if test -f Godeps/Godeps.json ; then
+          # Install Go dependencies with Godeps.
+          pushd /gopath/src/app
+          godep restore
+          popd
+        elif find . -name "*.go" -printf "found" -quit |grep found >/dev/null ; then
+          # Install Go dependencies with go get.
+          pushd /gopath/src/app
+          go get
+          popd
+        fi
+
+        if test -f pom.xml ; then
+          # Install Java Maven dependencies.
+          mvn install
+        fi
+
+        if test -f build.gradle ; then
+            gradle build
+        fi
+    else
+        echo "Running '${SETUP_CMD[@]}' to install project dependencies..."
+        ${SETUP_CMD[@]}
     fi
 
     # Run License Finder.