use minimatch lib to check for files that should be excluded

README.md

@@ -102,6 +102,9 @@ custom:
       - ./requirements.txt
     globalIncludes:
       - ./common_files
+    globalExcludes:
+      - '**/*.egg-info'
+      - '**/__pycache__'
     cleanup: true
 
 functions:
@@ -130,6 +133,7 @@ The plugin configurations are simple:
 | requirementsFile   | The name of the requirements file used for function-level requirements. All function-level requirements files must use the name specified here.                                                                    | Yes. Defaults to `requirements.txt`                        |
 | globalRequirements | A list of paths to files containing service-level pip requirements.                                                                                                                                                | Yes                                                        |
 | globalIncludes     | A list of paths to folders containing service-level code files (i.e. code common to all functions). Only the folders contents will be packaged, not the folder itself. Paths to files are not currently supported. | Yes                                                        |
+| globalExcludes     | A list of paths to exclude from the package. Use glob syntax to specify files or directories to exclude, e.g. `'**/*.egg-info'`                                                                                    | Yes                                                        |
 | useDocker          | Boolean indicating whether to package pip dependencies using Docker. Set this to true if your project uses platform-specific compiled libraries like numpy. Requires a [Docker installation](https://www.docker.com/get-docker).                        | Yes. Defaults to `false`                                   |
 | dockerImage        | The Docker image to use to compile functions if `useDocker` is set to `true`. Must be specified as `repository:tag`. If the image doesn't exist on the system, it will be downloaded. The initial download may take some time.                            | Yes. Defaults to `lambci/lambda:build-${provider.runtime}` |
 | containerName      | The desired name for the Docker container.                                                                                                                                                                         | Yes. Defaults to `serverless-package-python-functions`     |
@@ -138,6 +142,7 @@ The plugin configurations are simple:
 At the function level, you:
 - Specify `name` to give your function a name. The plugin uses the function's name as the name of the zip artifact
 - Use `include` to specify what function-level files you want to include in your artifact. Simply specifying the path to the function's folder will include every file in the folder in the function's zip artifact
+- Use `exclude` to specify what function-level files or directories you want to exclude in your artifact. Use glob syntax to specify target content.
 - Use `artifact` to tell Serverless where to find the zip artifact. The plugin creates the zip artifact for the function at `buildDir`/`name`.zip, so using `${self:custom.pkgPyFuncs.buildDir}/[function-name-here].zip` is advised.
 
 At the package level, you may need to:

index.js

@@ -3,6 +3,7 @@
 const BbPromise = require('bluebird');
 const _ = require('lodash');
 const Fse = require('fs-extra');
+const minimatch = require('minimatch');
 const Path = require('path');
 const ChildProcess = require('child_process');
 const zipper = require('zip-local');
@@ -28,13 +29,20 @@ class PkgPyFuncs {
     config.buildDir ? this.buildDir = config.buildDir : this.error("No buildDir configuration specified")
     this.globalRequirements = config.globalRequirements || []
     this.globalIncludes = config.globalIncludes || []
+    this.globalExcludes = config.globalExcludes || []
     config.cleanup === undefined ? this.cleanup = true : this.cleanup = config.cleanup
     this.useDocker = config.useDocker || false
     this.dockerImage = config.dockerImage || `lambci/lambda:build-${this.serverless.service.provider.runtime}`
     this.containerName = config.containerName || 'serverless-package-python-functions'
     this.mountSSH = config.mountSSH || false
     this.abortOnPackagingErrors = config.abortOnPackagingErrors || false
     this.dockerServicePath = '/var/task'
+    this.defaultExcludes = [
+      "**/.serverless",
+      "**/node_modules",
+      "**/package.json",
+      "**/package-lock.json"
+    ]
   }
 
   autoconfigArtifacts() {
@@ -70,6 +78,7 @@ class PkgPyFuncs {
       return {
         name: target.name,
         includes: target.package.include,
+        excludes: target.package.exclude,
         artifact: target.package.artifact
       }
     })
@@ -207,7 +216,20 @@ class PkgPyFuncs {
     if (this.globalIncludes){
       includes = _.concat(includes, this.globalIncludes)
     }
-    _.forEach(includes, (item) => { Fse.copySync(item, buildPath) } )
+    let excludes = target.excludes || []
+    if (this.globalExcludes){
+      excludes = _.concat(excludes, this.globalExcludes)
+    }
+
+    let filter = (src, dest) => {
+      for(var i = 0; i < excludes.length; i++) {
+        if (minimatch(src, excludes[i])){
+          return false
+        }
+      }
+      return true
+    }
+    _.forEach(includes, (item) => { Fse.copySync(item, buildPath, filter) } )
 
     // Install requirements
     let requirements = [requirementsPath]

package.json

@@ -10,6 +10,7 @@
     "bluebird": "^3.5.0",
     "fs-extra": "^3.0.0",
     "lodash": "^4.17.11",
+    "minimatch": "^3.0.4",
     "upath": "^1.1.0",
     "readline-sync": "^1.4.10",
     "zip-local": "^0.3.4"