Support setting "homepage" to "." to generate relative asset paths #1489

tibdex · 2017-02-06T15:44:31Z

The goal is to be able to set homepage in the package.json to ./ (or just .) to be able to deploy the app anywhere. This topic has already been mentioned in #1094, #931 and #165.

This PR will obviously not make this homepage "trick" works with client-side routing without hash but not everybody needs this feature anyway.

The only problem I saw when setting the homepage to ./ is #1480. This issue is caused by ExtractTextPlugin not supporting non-flat build output by default. To fix it, we can use the publicPath option of this plugin and go back to the build folder when needed.

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gaearon · 2017-02-06T15:51:58Z

Can you explain a bit more about why this works?
What exactly does "go back to the build folder" mean in this context?

tibdex · 2017-02-06T16:22:59Z

Without configuring the homepage the CSS file under static/css contained this:

@font-face {
    font-family: Arsenal;
    font-style: normal;
    font-weight: 400;
    src: url(/static/media/arsenal-latin-400.32de4694.eot);
}

Before this PR, when setting homepage to ./, it changed to:

@font-face {
    font-family: Arsenal;
    font-style: normal;
    font-weight: 400;
    src: url(./static/media/arsenal-latin-400.32de4694.woff);
}

The issue is that relative paths in CSS are relative to the CSS file itself and not the index.html file requiring it as it is the case with JavaScript files. So, the browser ended up looking for the font file at ./static/css/static/media/arsenal-latin-400.32de4694.woff relatively to index.html and got a 404.

With this PR, the content becomes:

@font-face {
    font-family: Arsenal;
    font-style: normal;
    font-weight: 400;
    src: url(../../static/media/arsenal-latin-400.32de4694.woff);
}

Thus, the browser now looks for the font file at ./static/media/arsenal-latin-400.32de4694.woff relatively to index.html which is the correct path.

gaearon · 2017-02-06T16:24:52Z

Okay. So this works because we know relative position of static/media and static/css?

tibdex · 2017-02-06T16:27:42Z

We only need to know the relative position between the CSS file and index.html which is in the build root folder. If the media assets were in static/media/sub-folder it would still work with the changes in this PR.

You can look at this issue on the ExtractTextPlugin repo (mentionned in a comment I added to the code) to understand why this issue occurs and why they added the publicPath option to fix it.

gaearon · 2017-02-06T16:52:04Z

Oh okay, I understand what you did there. 😛
I think this makes sense.

gaearon · 2017-02-06T16:52:42Z

We need a volunteer reviewer to verify the fix works but tagging this for the next release.

tibdex · 2017-02-06T17:37:44Z

If we consider that setting the homepage to ./ is not a trick anymore but a supported configuration, should I add a paragraph explaining this to the Building for relative path section ?

gaearon · 2017-02-06T17:58:19Z

👍

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Timer · 2017-02-08T21:08:18Z

packages/react-scripts/config/webpack.config.prod.js

+// Sometimes, people would rather be able to deploy their app anywhere,
+// without having to specify a "homepage".
+// We can detect this when the publicPath is set to "./".
+var isPublicPathRelative = publicPath === './';


I almost feel like this comment comes off a little demeaning to those trying to use client-side routing.
Could we make this friendlier and more terse?

You're totally right, I did not realize it could be interpreted that way when writing the comment. What do you think of:

// Some apps built with Create React App do not use client-side routing with pushState. // For these, "homepage" can be set to "./" to make them deployable anywhere.

I'm not sure if "anywhere" makes sense without the context of this issue. Do you have a suggestion to explain this better?

Maybe:

For these apps, "homepage" can be set to "." to enable relative asset paths.

Could you then clarify this more and the use-case in the User Guide and remove the "deployable anywhere" term?

Thanks!

gaearon · 2017-02-08T23:03:42Z

Also let's make "." the official recommendation. Easier to read then "./"

tibdex · 2017-02-09T13:24:38Z

If you are satisfied with the new changes, I can squash everything into a single commit and remove the "deployable anywhere" wording from the 2nd commit message.

gaearon · 2017-02-09T13:31:45Z

packages/react-scripts/template/README.md

+  "homepage": ".",
+```
+
+This will make sure that all the asset paths are relative to `index.html`. You will then be able to move your app from "http://mywebsite.com" to "http://mywebsite.com/relativepath" or even "http://mywebsite.com/relative/path" without having to rebuild it.


Please use backticks here for URLs.

Oops, sorry I should have seen backticks were used in other places.

gaearon · 2017-02-09T13:32:37Z

packages/react-scripts/template/README.md

@@ -1066,6 +1066,17 @@ To override this, specify the `homepage` in your `package.json`, for example:

 This will let Create React App correctly infer the root path to use in the generated HTML file.

+#### Setting Homepage to "."


Let's change this to "Serving the Same Build from Different Paths" or something similar.

Ok, "different paths" or "different URLs" ?

I'd rather go with paths because you don't need to rebuild to serve from mysite1.com and mysite2.com, only for different paths.

In the production build, ExtractTextPlugin is used to generate a separate CSS file instead of injecting style through JavaScript. This plugin does not work well by default with nested output structure. To fix it, we give it a relative publicPath pointing to the build folder.

Timer · 2017-02-10T05:44:06Z

Thanks!

* Fix paths in CSS files when homepage is set to "./" In the production build, ExtractTextPlugin is used to generate a separate CSS file instead of injecting style through JavaScript. This plugin does not work well by default with nested output structure. To fix it, we give it a relative publicPath pointing to the build folder. * Add section in README to explain how to make builds deployable anywhere * Apply review requested change * Apply review changes 2

@gaearon

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(facebook#1696) * fixing things for people with the username `cwd` closes facebook#1694 * combine awk into a single command and add escaping * pin and bump lerna (facebook#1688) * Lerna 2.0.0-beta.38 expects packages entry * Add docs for apache's client side routing setting (facebook#1717) * Add docs for apache's client side routing setting * Tweak advice * Update now.sh deployment instructions. (facebook#1710) * Update now.sh deployment instructions. Incorporates changes announced at https://zeit.co/blog/now-static that streamline Now deployments from CRA projects. * Remove unintentional reference to deployed app. No emergency; just didn't intend to tout or send traffic to my prototype. * Add support for ignoreRestSiblings in no-unused-vars (facebook#1705) * updating eslint to 3.16.1 * add support for ignoreRestSiblings in eslint http://eslint.org/docs/rules/no-unused-vars#ignorerestsiblings * updating eslint to 3.16.1 in `react-scripts` * updating eslint * missing `^` * missing ^ * pinning main eslint and updating readme * Pin ESLint version * add double quotes to escape spaces in paths in e2e (facebook#1707) * add double quotes to escape spaces in path * Change $* to "$@" props to @n3tr * escape spaces in path for all e2e tests * Create appveyor.cleanup-cache.txt * Link Appveyor caches to appveyor.cleanup-cache.txt * Trigger AppVeyor cache cleanup * Fix hot reloading for WebpackDevServer after eject (facebook#1721) * Fix openBrowser() when BROWSER=open on macOS (facebook#1690) * Fix openBrowser() when BROWSER=open on macOS * Tweaks * Create empty package.json in e2e test (facebook#1401) (facebook#1402) * Create empty package.json in e2e test Create empty package.json in e2e test while installing packaged CLI to prevent installation issues. * Use "npm init" to initialize package.json instead of just writing an empty object into it. * Fix typo * Skip AppVeyor CI builds for Markdown changes (facebook#1723) * Skip CI builds for Markdown changes * I will never learn YML * Don't use ES6 in a file that should run on Node 4 (facebook#1724) * Bump jsx-a11y version (facebook#1542) * Bump jsx-a11y version * Update package dependecy for jsx-a11y * Bump version in react-scripts * Bump ESLint config to 0.6.0 manually * Fix Node 4 e2e tests (facebook#1730) * Lint internal scripts with eslint:recommended (facebook#1729) * Lint internal scripts with eslint:recommended * Warnings r bad * Fix ejecting from a scoped fork (facebook#1727) * Read script names from own bin instead of guessing This fixes ejecting from a fork that uses a different bin script name. * Fix ejecting for a scoped react-scripts fork We shouldn't hardcode react-scripts because fork name might differ. We also shouldn't rely on it being an immediate child because scoped packages are a level deeper. * Clarify that own* properties only exist before ejecting * Properly extract package name for installing tgz of scoped packages (facebook#1706) * Properly extract package name * Download package if need be ... * Oops * Add e2e test based on facebook#1537, but without specific filename * Pass packageName through promises A little bit more verbose but explicit and doesn't rely on shared mutable state. * Fix up directory name in test * Tweak failure message * Fix lint * extract generic build functions to react-dev-utils (facebook#1726) * Temp rename * Rename to change the case * extract generic build functions to react-dev-utils * tweak package json files and move removeFileNameHash * revert removeFileNameHash * use paths.appBuild in printFileSizes * use paths.appBuild in removeFileNameHash * change curried functions to regular functions * add fs-extra to react-dev-utils deps * move getDifferenceLabel inside printFileSizes * inline copyPublicFolder * combine printFileSizes and removeFileNameHash to fileSizeReporter * fix typo * Tweak APIs and fix issues * Fix heading * Remove missing file * Newline * Newline * Trailing space * Update FileSizeReporter.js * Update build.js * Bust AppVeoyr cache * Relax ESLint config peerDependency (facebook#1740) * Fix internal linting setup and add missing headers (facebook#1741) * Fix lint * Fix eject for linked react-scripts (facebook#1736) * fix eject for linked react-scripts * path.resolve => resolveApp * Add changelog for 0.9.4 * Publish - create-react-app@1.3.0 - eslint-config-react-app@0.6.1 - react-dev-utils@0.5.2 - react-scripts@0.9.4 * Adjust changelog wording * Switch to preset-env (facebook#1742) * Switch to preset-env Disables webpack modules by enabling babel modules to resolve facebook#1638 * Bump babel-core to match babel preset versions * Add uglify to targets * Display yarn instead of yarnpkg when creating a new app (facebook#1747) * Display yarn instead of yarnpkg * Refactored displayd commands * Removed testing directory * Add yarn steps for adding flow (facebook#1756) [skip ci] * Suggest `serve` for running in production (facebook#1760) * Suggest `serve` for serving the `build` directory * How to handle it with Node in prod (or other platforms) * Pretty newline added * Adjusted default port of static server * Remove `open` command from output * Removed constant assignment * Better explanation for not using having to use a static server * Cute newline added * Style nits * Remove 'guard-for-in' lint rule (facebook#1773) Iterating over an object's keys using `for/in` is idiomatic and it's safe (in all modern browsers) to not check hasOwnProperty as long as the object is a plain object. Can we remove this lint rule? * Run CI on Node 7; Bump detect-port: 1.0.1 -> 1.1.0 (facebook#1776) (facebook#1783) * Run CI on Node 7 * Bump detect-port: 1.0.1 -> 1.1.0 * Run AppVeyor CI on Node 7 * Add 0.9.5 changelog (facebook#1784) * Add 0.9.5 changelog * Update CHANGELOG.md * Publish - babel-preset-react-app@2.2.0 - eslint-config-react-app@0.6.2 - react-scripts@0.9.5 * docs(babel-preset): Update comment info about babel-preset-env. (facebook#1787) * Feature/readme-nomoretools (facebook#1799) * docs: replace TDLR with a meaningful heading * docs: insert section No additional build tools * Tweak wording * Suggest "yarn build" rather than "yarn run build" (facebook#1800) * Fix for issue facebook#1798: Suggested 'yarn build' versus 'yarn run build' * remove 'run' from 'yarn test' command as well * conditionally show 'run' if Yarn is not available * Tweak the wording * Allow creation of apps in empty mercurial repos (facebook#1811) * Allow creation of apps in empty mercurial repos * Adding .hgignore to list of validFiles for isSafeToCreateProjectIn check * Adding .hgcheck to list of validFiles for isSafeToCreateProjectIn check * Link to CRNA * Make Surge guide more focused * User Guide: Removed blockquote from code section, due to markdown conflict (facebook#1869) * Removed blockquote from code section * Fix the fix * Fix AppVeyor CI (facebook#1876) * Fix responsive behavior in iOS 9+ (facebook#1821) * Adding shrink-to-fit=no for proper responsive handling on Safari 9+ * Check internet connectivity with lookup instead of resolve (facebook#1863) Resolves facebook#1818 * Update `detect-port` (facebook#1861) Previous changes caused `detect-port` to pick random port on app startup. Update fixes this regression, `detect-port` pick next available port instead. * Fix importing linked packages (facebook#1884) Resolves facebook#1661 * Fix AppVeyor CI (facebook#1868) * Fix AppVeyor CI (facebook#1876) * Run AppVeyor on Visual Studio 2017 * Suggest Yarn in HTML template (facebook#1911) * Fix npm to yarn * yarn & npm * Update index.html * Switch ordering of suggestion We should suggest NPM first for new users. * Note that only jest-enzyme@2.x is compatible * Add sku to the list of alternatives (facebook#1962) * Update information in User Guide for Enzyme dependency (facebook#1982) * Ensure proxy url starts with `http://` or `https://` (facebook#1890) * Update ansi-html to fix facebook#1881 * Add linked modules test (0.9.x) (facebook#1912) * Add linked modules test * Keep fallback after eject * Add note about installing watchman (facebook#1950) * Add note about installing watchman * Update CONTRIBUTING.md * Start the dev server at the specified host Pass the host from environment variable as argument of the devServer's listen function instead of a field of options object. Set the default host to 0.0.0.0 instead of localhost. * Add folder structure docs for new contributors (facebook#1991) * Adding folder structure to help people navigate through project. It helps in resolving issues by providing brief description of each package and its purpose * Removing unnecessary packages from Folder structure heading * Update CONTRIBUTING.md * Relax label rules (facebook#1989) # Conflicts: # packages/eslint-config-react-app/index.js * Update doc server example to work from any directory (facebook#1988) * Node.js serving with absolute path It’s safer to use the absolute path of the directory that you want to serve, in case you run the express app from another directory. * Update README.md * Fix config discrepancies after merging from upstream v0.9.x * Minor fixes per feedback for upstream merging * Fix import from incorrect module * Release v7.0.0

MahbbRah · 2018-03-21T03:37:46Z

Yes Yes. That was frustrating to work on every production build! it's working like charm now after setting the homepage on package.json

Thank you for this work around!

gaearon added this to the 0.9.0 milestone Feb 6, 2017

facebook-github-bot added the CLA Signed label Feb 6, 2017

tibdex changed the title ~~Make sure setting the "homepage" to "./" don't generate invalid paths~~ Support setting "homepage" to "./" to make builds not using pushState deployable anywhere Feb 6, 2017

tibdex mentioned this pull request Feb 6, 2017

Compiled config vs runtime config #578

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gaearon mentioned this pull request Feb 7, 2017

Fonts linked are linked to wrong path in production #1480

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Timer mentioned this pull request Feb 8, 2017

Release 0.9.0 #1430

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Timer reviewed Feb 8, 2017

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tibdex changed the title ~~Support setting "homepage" to "./" to make builds not using pushState deployable anywhere~~ Support setting "homepage" to "." to generate relative asset paths Feb 9, 2017

gaearon reviewed Feb 9, 2017

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tibdex added 4 commits February 9, 2017 23:21

Add section in README to explain how to make builds deployable anywhere

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Timer merged commit 8e127aa into facebook:master Feb 10, 2017

This was referenced Feb 10, 2017

Add test cases to validate functionality of PUBLIC_URL and relative homepage #1516

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Parameter "homepage" in package.json #1487

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Timer mentioned this pull request Feb 10, 2017

Building does not set relative paths to the assets in static folder #527

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Timer added the tag: new feature label Feb 11, 2017

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Support setting "homepage" to "." to generate relative asset paths #1489

Support setting "homepage" to "." to generate relative asset paths #1489

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MahbbRah commented Mar 21, 2018

		@@ -1066,6 +1066,17 @@ To override this, specify the `homepage` in your `package.json`, for example:

		This will let Create React App correctly infer the root path to use in the generated HTML file.

		#### Setting Homepage to "."

Support setting "homepage" to "." to generate relative asset paths #1489

Support setting "homepage" to "." to generate relative asset paths #1489

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