如何解决CI 上不存在 manifest.json 的正确 Rails 解决方案
当我的测试在 CI(特别是 Heroku)上运行时,它们会引发此错误:
Webpacker can't find application.js in /app/public/packs-test/manifest.json. Possible causes
我相信这只是因为前端资产尚未编译。解决它的正确 Rails 方法是什么?
例如,我发现如果我添加
"test-setup": "bundle exec rake webpacker:compile",
对于我的 Heroku 脚本,它可以工作,但这感觉有点像一种解决方法,而不是正确的解决方案。一个合适的解决方案是让 Rails 在运行测试时自动编译资产,对吗?不依赖于 CI 配置的东西。
完整的错误是:
1) /friendships when logged in gets a list of friends
Failure/Error: <%= javascript_pack_tag "application","data-turbolinks-track": "reload" %>
ActionView::Template::Error:
Webpacker can't find application.js in /app/public/packs-test/manifest.json. Possible causes:
1. You want to set webpacker.yml value of compile to true for your environment
unless you are using the `webpack -w` or the webpack-dev-server.
2. webpack has not yet re-run to reflect updates.
3. You have misconfigured Webpacker's config/webpacker.yml file.
4. Your webpack configuration is not creating a manifest.
Your manifest contains:
{
}
# ./app/views/layouts/application.html.erb:30:in `_app_views_layouts_application_html_erb___487359012740265845_49820'
# ./spec/requests/friendships_spec.rb:34:in `block (3 levels) in <top (required)>'
# ------------------
# --- Caused by: ---
# Webpacker::Manifest::MissingEntryError:
# Webpacker can't find application.js in /app/public/packs-test/manifest.json. Possible causes:
# 1. You want to set webpacker.yml value of compile to true for your environment
# unless you are using the `webpack -w` or the webpack-dev-server.
# 2. webpack has not yet re-run to reflect updates.
# 3. You have misconfigured Webpacker's config/webpacker.yml file.
# 4. Your webpack configuration is not creating a manifest.
# Your manifest contains:
# {
# }
# ./app/views/layouts/application.html.erb:30:in `_app_views_layouts_application_html_erb___487359012740265845_49820'
Webpacker 配置为在测试模式下编译(默认):
# Note: You must restart bin/webpack-dev-server for changes to take effect
default: &default
source_path: app/javascript
source_entry_path: packs
public_root_path: public
public_output_path: packs
cache_path: tmp/cache/webpacker
webpack_compile_output: true
# Additional paths webpack should lookup modules
# ['app/assets','engine/foo/app/assets']
additional_paths: [ ]
# Reload manifest.json on all requests so we reload latest compiled packs
cache_manifest: false
# Extract and emit a css file
extract_css: false
static_assets_extensions:
- .jpg
- .jpeg
- .png
- .gif
- .tiff
- .ico
- .svg
- .eot
- .otf
- .ttf
- .woff
- .woff2
extensions:
- .mjs
- .js
- .sass
- .scss
- .css
- .module.sass
- .module.scss
- .module.css
- .png
- .svg
- .gif
- .jpeg
- .jpg
development:
<<: *default
compile: true
# Reference: https://webpack.js.org/configuration/dev-server/
dev_server:
https: false
host: localhost
port: 3035
public: localhost:3035
hmr: false
# Inline should be set to true if using HMR
inline: true
overlay: true
compress: true
disable_host_check: true
use_local_ip: false
quiet: false
pretty: false
headers:
'Access-Control-Allow-Origin': '*'
watch_options:
ignored: '**/node_modules/**'
test:
<<: *default
compile: true
# Compile test packs to a separate directory
public_output_path: packs-test
staging:
<<: *default
# Staging depends on precompilation of packs prior to booting for performance.
compile: false
# Extract and emit a css file
extract_css: true
# Cache manifest.json for performance
cache_manifest: true
production:
<<: *default
# Production depends on precompilation of packs prior to booting for performance.
compile: false
# Extract and emit a css file
extract_css: true
# Cache manifest.json for performance
cache_manifest: true
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