如何更改 dist 文件夹路径而不覆盖 output 文件夹中的现有文件

Question

I'm using JAVA and app engine as backend and angular as frontend also I want to directly build my files using ng build and output them to my java project so I tried replacing outputPath in my angular.json file as so

{

  ...
  "options": [
    {
      "outputPath": "../../myproject/java/src/main/webapp/",
      ...
    }
  ],
  ...
}

all files are correctly placed in webapp folder but the only problem is that it overwrites the whole folder leading to loosing other project files/directories, so I have to manually place files into this directory which is what I want to avoid.

I also tried changing the base-href and try to load my files from a /dist folder.But changing base-href leads to incorrect url routing.

any solution to avoid overwriting files.

Answer 1

If you are manually adding files after build, then you can try writing a postbuild action that copies all those files into build folder.

File package.json :

  "scripts": {
    "start": "ng serve",
    "build": "ng build --prod",
    "postbuild": "cp somefile ../../myproject/java/src/main/webapp/somefile",
    ...
  },

If you are on windows OS and want to do multiple actions, you may use powershell script that can be invoked as a postbuild step.

  "scripts": {
    ...
    "postbuild": "powershell ./update-build-folder.ps1",
    ...
  },

Everytime you run npm build / yarn build , build directory will be cleaned, afterwards angular CLI will output the JS files and then all those custom files will be placed in the build directory.

Answer 2

What version of angular-cli are you using? I'm able to successfully build to a directory that is outside of the angular project, which contains other files, WITHOUT those additional files getting deleted. (this is with angular-cli v7.3.9)

Lastly, are you sure that some OTHER script isn't the one deleting the files in your build path? (ie a backend build script)

...
"options": {
            "outputPath": "../custom-output/web/build-here",
            ...
},
...

Screenshots: