feat: Ensure support when Pipfile.lock missing

Author: pgrzesik

.github/workflows/integrate.yml

@@ -48,7 +48,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -99,7 +99,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -147,7 +147,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}

.github/workflows/validate.yml

@@ -61,7 +61,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -128,7 +128,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -181,7 +181,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv==2022.9.24 poetry
+        run: python -m pip install pipenv poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}

lib/pipenv.js

@@ -28,12 +28,8 @@ async function pipfileToRequirements() {
   }
 
   try {
-    let res;
     try {
-      res = await spawn('pipenv', ['lock', '--keep-outdated'], {
-        cwd: this.servicePath,
-      });
-      res = await spawn('pipenv', ['requirements', '--hash'], {
+      await spawn('pipenv', ['lock', '--keep-outdated'], {
         cwd: this.servicePath,
       });
     } catch (e) {
@@ -46,8 +42,20 @@ async function pipfileToRequirements() {
           'PYTHON_REQUIREMENTS_PIPENV_NOT_FOUND'
         );
       }
-      throw e;
+      if (
+        e.stderrBuffer &&
+        e.stderrBuffer.toString().includes('Pipfile.lock must exist')
+      ) {
+        // No previous Pipfile.lock, we will try to generate it here
+        await spawn('pipenv', ['lock'], {
+          cwd: this.servicePath,
+        });
+      }
     }
+    const res = await spawn('pipenv', ['requirements'], {
+      cwd: this.servicePath,
+    });
+
     fse.ensureDirSync(path.join(this.servicePath, '.serverless'));
     fse.writeFileSync(
       path.join(this.servicePath, '.serverless/requirements.txt'),

tests/pipenv/Pipfile

@@ -1,7 +1,6 @@
 [[source]]
-url = "https://pypi.org/simple"
+url = "https://pypi.python.org/simple"
 verify_ssl = true
-name = "pypi"
 
 [packages]
 Flask = "==2.0.3"