Redirects (#7067)

* Redirects spike

* Allow redirects in static mode

* Support in Netlify as well

* Adding a changeset

* Rename file

* Fix build problem

* Refactor to be more modular

* Fix location ref

* Late test should only run in SSR

* Support redirects in Netlify SSR configuration (#7167)

* Implement support for dynamic routes in redirects (#7173)

* Implement support for dynamic routes in redirects

* Remove the .only

* No need to special-case redirects in static build

* Implement support for redirects config in the Vercel adapter (#7182)

* Implement support for redirects config in the Vercel adapter

* Remove unused condition

* Move to a internal helper package

* Add support for the object notation in redirects

* Use status 308 for non-GET redirects (#7186)

* Implement redirects in Cloudflare (#7198)

* Implement redirects in Cloudflare

* Fix build

* Update tests b/c of new ordering

* Debug issue

* Use posix.join

* Update packages/underscore-redirects/package.json

Co-authored-by: Emanuele Stoppa <my.burning@gmail.com>

* Update based on review comments

* Update broken test

---------

Co-authored-by: Emanuele Stoppa <my.burning@gmail.com>

* Test that redirects can come from middleware (#7213)

* Test that redirects can come from middleware

* Allow non-promise returns for middleware

* Implement priority (#7210)

* Refactor

* Fix netlify test ordering

* Fix ordering again

* Redirects: Allow preventing the output of the static HTML file (#7245)

* Do a simple push for priority

* Adding changesets

* Put the implementation behind a flag.

* Self review

* Update .changeset/chatty-actors-stare.md

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

* Update docs on dynamic restrictions.

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

* Code review changes

* Document netlify static adapter

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

* Slight reword

* Update .changeset/twenty-suns-vanish.md

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

* Add a note about public/_redirects file

* Update packages/astro/src/@types/astro.ts

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

---------

Co-authored-by: Emanuele Stoppa <my.burning@gmail.com>
Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>
Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>
Co-authored-by: Nate Moore <natemoo-re@users.noreply.github.com>

1 files changed, 86 insertions, 0 deletions

diff --git a/packages/internal-helpers/src/path.ts b/packages/internal-helpers/src/path.ts
new file mode 100644
index 000000000..2f2a974c4
--- /dev/null
+++ b/packages/internal-helpers/src/path.ts
@@ -0,0 +1,86 @@
+/**
+ * A set of common path utilities commonly used through the Astro core and integration
+ * projects. These do things like ensure a forward slash prepends paths.
+ */
+
+export function appendExtension(path: string, extension: string) {
+	return path + '.' + extension;
+}
+
+export function appendForwardSlash(path: string) {
+	return path.endsWith('/') ? path : path + '/';
+}
+
+export function prependForwardSlash(path: string) {
+	return path[0] === '/' ? path : '/' + path;
+}
+
+export function removeTrailingForwardSlash(path: string) {
+	return path.endsWith('/') ? path.slice(0, path.length - 1) : path;
+}
+
+export function removeLeadingForwardSlash(path: string) {
+	return path.startsWith('/') ? path.substring(1) : path;
+}
+
+export function removeLeadingForwardSlashWindows(path: string) {
+	return path.startsWith('/') && path[2] === ':' ? path.substring(1) : path;
+}
+
+export function trimSlashes(path: string) {
+	return path.replace(/^\/|\/$/g, '');
+}
+
+export function startsWithForwardSlash(path: string) {
+	return path[0] === '/';
+}
+
+export function startsWithDotDotSlash(path: string) {
+	const c1 = path[0];
+	const c2 = path[1];
+	const c3 = path[2];
+	return c1 === '.' && c2 === '.' && c3 === '/';
+}
+
+export function startsWithDotSlash(path: string) {
+	const c1 = path[0];
+	const c2 = path[1];
+	return c1 === '.' && c2 === '/';
+}
+
+export function isRelativePath(path: string) {
+	return startsWithDotDotSlash(path) || startsWithDotSlash(path);
+}
+
+function isString(path: unknown): path is string {
+	return typeof path === 'string' || path instanceof String;
+}
+
+export function joinPaths(...paths: (string | undefined)[]) {
+	return paths
+		.filter(isString)
+		.map((path, i) => {
+			if (i === 0) {
+				return removeTrailingForwardSlash(path);
+			} else if (i === paths.length - 1) {
+				return removeLeadingForwardSlash(path);
+			} else {
+				return trimSlashes(path);
+			}
+		})
+		.join('/');
+}
+
+export function removeFileExtension(path: string) {
+	let idx = path.lastIndexOf('.');
+	return idx === -1 ? path : path.slice(0, idx);
+}
+
+export function removeQueryString(path: string) {
+	const index = path.lastIndexOf('?');
+	return index > 0 ? path.substring(0, index) : path;
+}
+
+export function isRemotePath(src: string) {
+	return /^(http|ftp|https|ws):?\/\//.test(src) || src.startsWith('data:');
+}