Initial changes for fork

.github/workflows/main.yml

@@ -0,0 +1,27 @@
+on: [push, pull_request]
+name: Go Test
+
+jobs:
+  unit:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ "ubuntu" ]
+        go: [ "1.17.x", "1.18.x" ]
+    env:
+      COVERAGES: ""
+    runs-on: ${{ matrix.os }}-latest
+    name: ${{ matrix.os}} (go ${{ matrix.go }})
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go }}
+      - name: Go information
+        run: |
+          go version
+          go env
+      - name: Run tests
+        run: go test -v ./...
+      - name: Check formatted
+        run: gofmt -l .

README.md

@@ -0,0 +1,50 @@
+# IPFS Redirects Parser
+
+**Experimental**
+Parser for the IPFS HTTP Gateway's `_redirects` file format.
+
+Currently this is a subset of Netlify's [redirects format](https://www.netlify.com/docs/redirects/).
+The details of the supported functionality are still in flux and will eventually be included in a [spec](https://github.com/ipfs/specs).
+
+## Format
+Currently only supports `from`, `to`, `status` and `force`.
+
+```
+from to [status][!]
+```
+
+## Example
+
+```sh
+# Implicit 301 redirects
+/home              /
+/blog/my-post.php  /blog/my-post
+/news              /blog
+/google            https://www.google.com
+
+# Redirect with a 301
+/home         /              301
+
+# Redirect with a 302
+/my-redirect  /              302
+
+# Rewrite a path
+/pass-through /index.html    200
+
+# Show a custom 404 for this path
+/ecommerce    /store-closed  404
+
+# Single page app rewrite
+/*    /index.html   200
+
+# Proxying
+/api/*  https://api.example.com/:splat  200
+
+# Forced redirect, even if the from path exists
+/app/*  /app/index.html  200!
+```
+
+---
+
+## Credit
+This project was forked from [tj/go-redirects](https://github.com/tj/go-redirects).  Thank you TJ for the initial work. 🙏

go.mod

@@ -0,0 +1,15 @@
+module github.com/justincjohnson/go-ipfs-redirects
+
+go 1.17
+
+require (
+	github.com/pkg/errors v0.9.1
+	github.com/tj/assert v0.0.3
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.6.1 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c // indirect
+)

go.sum

@@ -0,0 +1,17 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/tj/assert v0.0.3 h1:Df/BlaZ20mq6kuai7f5z2TvPFiwC3xaWJSDQNiIS3Rk=
+github.com/tj/assert v0.0.3/go.mod h1:Ne6X72Q+TB1AteidzQncjw9PabbMp4PBMZ1k+vd1Pvk=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c h1:grhR+C34yXImVGp7EzNk+DTIk+323eIUWOmEevy6bDo=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

redirects.go

@@ -11,28 +11,6 @@ import (
 	"github.com/pkg/errors"
 )
 
-// Params is a map of key/value pairs.
-type Params map[string]interface{}
-
-// Has returns true if the param is present.
-func (p *Params) Has(key string) bool {
-	if p == nil {
-		return false
-	}
-
-	_, ok := (*p)[key]
-	return ok
-}
-
-// Get returns the key value.
-func (p *Params) Get(key string) interface{} {
-	if p == nil {
-		return nil
-	}
-
-	return (*p)[key]
-}
-
 // A Rule represents a single redirection or rewrite rule.
 type Rule struct {
 	// From is the path which is matched to perform the rule.
@@ -55,9 +33,6 @@ type Rule struct {
 	// Force is used to force a rewrite or redirect even
 	// when a response (or static file) is present.
 	Force bool
-
-	// Params is an optional arbitrary map of key/value pairs.
-	Params Params
 }
 
 // IsRewrite returns true if the rule represents a rewrite (status 200).
@@ -109,6 +84,10 @@ func Parse(r io.Reader) (rules []Rule, err error) {
 			return nil, errors.Wrapf(err, "missing destination path: %q", line)
 		}
 
+		if len(fields) > 3 {
+			return nil, errors.Wrapf(err, "must match format `from to [status][!]`")
+		}
+
 		// src and dst
 		rule := Rule{
 			From:   fields[0],
@@ -127,11 +106,6 @@ func Parse(r io.Reader) (rules []Rule, err error) {
 			rule.Force = force
 		}
 
-		// params
-		if len(fields) > 3 {
-			rule.Params = parseParams(fields[3:])
-		}
-
 		rules = append(rules, rule)
 	}
 
@@ -144,22 +118,6 @@ func ParseString(s string) ([]Rule, error) {
 	return Parse(strings.NewReader(s))
 }
 
-// parseParams returns parsed param key/value pairs.
-func parseParams(pairs []string) Params {
-	m := make(Params)
-
-	for _, p := range pairs {
-		parts := strings.Split(p, "=")
-		if len(parts) > 1 {
-			m[parts[0]] = parts[1]
-		} else {
-			m[parts[0]] = true
-		}
-	}
-
-	return m
-}
-
 // parseStatus returns the status code and force when "!" suffix is present.
 func parseStatus(s string) (code int, force bool, err error) {
 	if strings.HasSuffix(s, "!") {