feat(all): Move to mdBook for the docs

.travis.yml

@@ -3,7 +3,7 @@ rust:
 - stable
 - beta
 - nightly
-- 1.26.0
+- 1.30.0
 matrix:
   allow_failures:
   - rust: nightly
@@ -19,11 +19,9 @@ addons:
     - gcc
     - binutils-dev
     - libiberty-dev
-    - npm
 before_script:
 - smtp-sink 2525 1000&
 - sudo chgrp -R postdrop /var/spool/postfix/maildrop
-- sudo npm set strict-ssl false && sudo npm install -g gitbook-cli
 script:
 - cargo test --verbose --all --all-features
 after_success:

website/.gitignore

@@ -1,2 +1 @@
-node_modules
 /_book

website/Makefile

@@ -1,13 +1,16 @@
 all: depends _book
 
 depends:
-	gitbook install
+	cargo install --force mdbook --vers "^0.2"
+	cargo install --force mdbook-linkcheck --vers "^0.2"
 
 serve:
-	gitbook serve
+	mdbook serve
 
 _book:
-	gitbook build
+	mdbook build
 
 clean:
 	rm -rf _book/
+
+.PHONY: _book

website/book.json

@@ -1,10 +0,0 @@
-{
-    "root": "./content",
-    "plugins": [ "-sharing", "edit-link" ],
-    "pluginsConfig": {
-        "edit-link": {
-            "base": "https://github.com/lettre/lettre/edit/master/website/content",
-            "label": "Edit"
-        }
-    }
-}

website/book.toml

@@ -0,0 +1,11 @@
+[book]
+title = "Lettre"
+author = "Alexis Mousset"
+description = "The user documentation of the Lettre crate."
+
+[build]
+build-dir = "_book"
+
+[output.html]
+
+[output.linkcheck]