docs: Mkdocs i18n support (#5072)

Signed-off-by: Yifei DIng <yifeiding@protonmail.com>

4 files changed, 43 insertions, 7 deletions

diff --git a/docs/_klipper3d/fetch-translations.sh b/docs/_klipper3d/fetch-translations.sh
new file mode 100755
index 00000000..79352f60
--- /dev/null
+++ b/docs/_klipper3d/fetch-translations.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# Modify the file structure before running mkdocs
+# This is a make shift script before the current structure of
+# Klipper-translations can be directly utilized by mkdocs
+# Usage: pre-mkdocs.sh <lang_directory_name> <target_lang_name>
+
+#git clone --depth 1 https://github.com/Klipper3d/klipper-translations
+
+while IFS="," read dirname langname langdesc note; do
+  # move and rename markdown files
+  local_dir="klipper-translations/docs/locales/$dirname"
+  echo "Moving $dirname to $langname"
+  for file in "$local_dir"/*.md; do
+    mdfilename="${file/$local_dir\//}"
+    mv "$file" "./docs/${mdfilename//.md/.${langname}.md}"
+  done
+
+  # manually replace index.md if a manual-index.md exist
+  manual_index="./docs/manual-index.$langname.md"
+
+  if [[ -f "$manual_index" ]];then
+    mv "$manual_index" "./docs/index.${langname}.md"
+    echo "replaced index.${langname}.md with $manual_index"
+  else
+      echo "Manually translated index file for $dirname not found!"
+  fi
+
+  # add to translations.yml
+  echo "      ${langname}: ${langdesc}" >> ./docs/_klipper3d/translations.yml
+done <  <(egrep -v '^ *(#|$)' ./klipper-translations/active_translations | tail -n +2)
diff --git a/docs/_klipper3d/mkdocs-requirements.txt b/docs/_klipper3d/mkdocs-requirements.txt
index a7fcf1e9..425d583d 100644
--- a/docs/_klipper3d/mkdocs-requirements.txt
+++ b/docs/_klipper3d/mkdocs-requirements.txt
@@ -6,3 +6,4 @@ mkdocs-exclude==1.0.2
 mdx-truly-sane-lists==1.2
 mdx-breakless-lists==1.0.1
 py-gfm==1.0.2
+mkdocs-static-i18n=0.30
diff --git a/docs/_klipper3d/mkdocs.yml b/docs/_klipper3d/mkdocs.yml
index b2ebfcd1..a47ddbc8 100644
--- a/docs/_klipper3d/mkdocs.yml
+++ b/docs/_klipper3d/mkdocs.yml
@@ -8,6 +8,7 @@ edit_uri: blob/master/docs/
 use_directory_urls: False
 docs_dir: '../'
 site_dir: '../../site/'
+INHERIT: translations.yml
 
 # Markdown document translation settings
 markdown_extensions:
@@ -19,13 +20,12 @@ markdown_extensions:
   - mdx_truly_sane_lists
   - mdx_breakless_lists
 plugins:
-  - search
-  - mkdocs-simple-hooks:
-      hooks:
-        on_page_markdown: "docs._klipper3d.mkdocs_hooks:transform"
-  - exclude:
-      glob:
-        - README.md
+  search: {}
+  mkdocs-simple-hooks:
+    hooks:
+      on_page_markdown: "docs._klipper3d.mkdocs_hooks:transform"
+  exclude:
+    glob: "README.md"
 
 # Website layout configuration (using mkdocs-material theme)
 theme:
diff --git a/docs/_klipper3d/translations.yml b/docs/_klipper3d/translations.yml
new file mode 100644
index 00000000..d70e3a78
--- /dev/null
+++ b/docs/_klipper3d/translations.yml
@@ -0,0 +1,5 @@
+plugins:
+  i18n:
+    default_language: en
+    languages:
+      en: English