fix: Add legacy pipenv backward compatability (#742)

Author: rwestergren

.github/workflows/integrate.yml

@@ -16,6 +16,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -48,7 +49,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -67,6 +68,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -99,7 +101,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -147,7 +149,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -166,6 +168,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     needs: [windowsNode14, linuxNode14, linuxNode12]
     steps:
       - name: Checkout repository

.github/workflows/validate.yml

@@ -16,6 +16,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -61,7 +62,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -94,6 +95,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -128,7 +130,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}
@@ -147,6 +149,7 @@ jobs:
     strategy:
       matrix:
         sls-version: [2, 3]
+        pipenv-version: ['2022.8.5', '2022.8.13']
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -181,7 +184,7 @@ jobs:
         run: python -m pip install --force setuptools wheel
 
       - name: Install pipenv / poetry
-        run: python -m pip install pipenv poetry
+        run: python -m pip install pipenv==${{ matrix.pipenv-version }} poetry
 
       - name: Install serverless
         run: npm install -g serverless@${{ matrix.sls-version }}

README.md

@@ -110,8 +110,7 @@ custom:
 
 Requires `pipenv` in version `2022-04-08` or higher.
 
-If you include a `Pipfile` and have `pipenv` installed instead of a `requirements.txt` this will use
-`pipenv lock -r` to generate them. It is fully compatible with all options such as `zip` and
+If you include a `Pipfile` and have `pipenv` installed, this will use `pipenv` to generate requirements instead of a `requirements.txt`. It is fully compatible with all options such as `zip` and
 `dockerizePip`. If you don't want this plugin to generate it for you, set the following option:
 
 ```yaml

lib/pipenv.js

@@ -2,6 +2,43 @@ const fse = require('fs-extra');
 const path = require('path');
 const spawn = require('child-process-ext/spawn');
 const { EOL } = require('os');
+const semver = require('semver');
+
+const LEGACY_PIPENV_VERSION = '2022.8.5';
+
+async function getPipenvVersion() {
+  try {
+    const res = await spawn('pipenv', ['--version'], {
+      cwd: this.servicePath,
+    });
+
+    const stdoutBuffer =
+      (res.stdoutBuffer && res.stdoutBuffer.toString().trim()) || '';
+
+    const version = stdoutBuffer.split(' ')[2];
+
+    if (semver.valid(version)) {
+      return version;
+    } else {
+      throw new this.serverless.classes.Error(
+        `Unable to parse pipenv version!`,
+        'PYTHON_REQUIREMENTS_PIPENV_VERSION_ERROR'
+      );
+    }
+  } catch (e) {
+    const stderrBufferContent =
+      (e.stderrBuffer && e.stderrBuffer.toString()) || '';
+
+    if (stderrBufferContent.includes('command not found')) {
+      throw new this.serverless.classes.Error(
+        `pipenv not found! Install it according to the pipenv docs.`,
+        'PYTHON_REQUIREMENTS_PIPENV_NOT_FOUND'
+      );
+    } else {
+      throw e;
+    }
+  }
+}
 
 /**
  * pipenv install
@@ -28,31 +65,48 @@ async function pipfileToRequirements() {
   }
 
   try {
-    try {
-      await spawn('pipenv', ['lock', '--keep-outdated'], {
-        cwd: this.servicePath,
-      });
-    } catch (e) {
-      const stderrBufferContent =
-        (e.stderrBuffer && e.stderrBuffer.toString()) || '';
+    // Get and validate pipenv version
+    if (this.log) {
+      this.log.info('Getting pipenv version');
+    } else {
+      this.serverless.cli.log('Getting pipenv version');
+    }
+
+    const pipenvVersion = await getPipenvVersion();
+    let res;
 
-      if (stderrBufferContent.includes('must exist to use')) {
-        // No previous Pipfile.lock, we will try to generate it here
-        await spawn('pipenv', ['lock'], {
+    if (semver.gt(pipenvVersion, LEGACY_PIPENV_VERSION)) {
+      // Using new pipenv syntax ( >= 2022.8.13)
+      try {
+        await spawn('pipenv', ['lock', '--keep-outdated'], {
           cwd: this.servicePath,
         });
-      } else if (stderrBufferContent.includes('command not found')) {
-        throw new this.serverless.classes.Error(
-          `pipenv not found! Install it according to the poetry docs.`,
-          'PYTHON_REQUIREMENTS_PIPENV_NOT_FOUND'
-        );
-      } else {
-        throw e;
+      } catch (e) {
+        const stderrBufferContent =
+          (e.stderrBuffer && e.stderrBuffer.toString()) || '';
+        if (stderrBufferContent.includes('must exist to use')) {
+          // No previous Pipfile.lock, we will try to generate it here
+          await spawn('pipenv', ['lock'], {
+            cwd: this.servicePath,
+          });
+        } else {
+          throw e;
+        }
       }
+
+      res = await spawn('pipenv', ['requirements'], {
+        cwd: this.servicePath,
+      });
+    } else {
+      // Falling back to legacy pipenv syntax
+      res = await spawn(
+        'pipenv',
+        ['lock', '--requirements', '--keep-outdated'],
+        {
+          cwd: this.servicePath,
+        }
+      );
     }
-    const res = await spawn('pipenv', ['requirements'], {
-      cwd: this.servicePath,
-    });
 
     fse.ensureDirSync(path.join(this.servicePath, '.serverless'));
     fse.writeFileSync(

package.json

@@ -72,6 +72,7 @@
     "lodash.uniqby": "^4.7.0",
     "lodash.values": "^4.3.0",
     "rimraf": "^3.0.2",
+    "semver": "^7.3.8",
     "set-value": "^4.1.0",
     "sha256-file": "1.0.0",
     "shell-quote": "^1.7.4"