From bae3ade47130eff9b7d50efbf09f85a4d802cde6 Mon Sep 17 00:00:00 2001
From: Vincent Prouillet <vincent@wearewizards.io>
Date: Tue, 23 May 2017 20:03:25 +0900
Subject: [PATCH] Add get_section fn and update readme

---
 CHANGELOG.md                |  6 ++++--
 README.md                   | 11 +++++++----
 src/site.rs                 |  1 +
 src/templates/global_fns.rs | 24 +++++++++++++++++++++++-
 4 files changed, 35 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a113313f..abb420bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,11 @@
 
 - Fix missing serialized data for sections
 - Change the single item template context for categories/tags
-- Add a `get_url` global Tera function
+- Add a `get_url` and a `get_section` global Tera function
 - Add a config option to control how many articles to show in RSS feed
-- Move `insert_anchor_links` from config to being a section option
+- Move `insert_anchor_links` from config to being a section option and it can
+now be insert left or right
+
 
 ## 0.0.5 (2017-05-15)
 
diff --git a/README.md b/README.md
index c2066ffb..20d75301 100644
--- a/README.md
+++ b/README.md
@@ -169,10 +169,13 @@ to link to. The path to the file starts from the `content` directory.
 For example, linking to a file located at `content/pages/about.md` would be `[my link](./pages/about.md)`.
 
 ### Anchors
-Headers get an automatic id from their content in order to be able to add deep links. By default no links are actually created but
-the `insert_anchor_links` option in `config.toml` can be set to `true` to link tags. The default template is very ugly and will need
-CSS tweaks in your projet to look decent. The default template can also be easily overwritten by creating a `anchor-link.html` file in
-the `templates` directory.
+Headers get an automatic id from their content in order to be able to add deep links. 
+You can also choose, at the section level, whether to automatically insert an anchor link next to it. It is turned off by default
+but can be turned on by setting `insert_anchor = "left"` or `insert_anchor = "right"` in the `_index.md` file. `left` will insert
+the anchor link before the title text and right will insert it after.
+
+The default template is very basic and will need CSS tweaks in your projet to look decent. 
+It can easily be overwritten by creating a `anchor-link.html` file in the `templates` directory.
 
 ### Shortcodes
 Gutenberg uses markdown for content but sometimes you want to insert some HTML, for example for a YouTube video.
diff --git a/src/site.rs b/src/site.rs
index 1341afdb..132cbf95 100644
--- a/src/site.rs
+++ b/src/site.rs
@@ -132,6 +132,7 @@ impl Site {
         self.populate_tags_and_categories();
 
         self.tera.register_global_function("get_page", global_fns::make_get_page(&self.pages));
+        self.tera.register_global_function("get_section", global_fns::make_get_section(&self.sections));
         self.register_get_url_fn();
 
         Ok(())
diff --git a/src/templates/global_fns.rs b/src/templates/global_fns.rs
index f875ddcc..f9bebe60 100644
--- a/src/templates/global_fns.rs
+++ b/src/templates/global_fns.rs
@@ -3,7 +3,7 @@ use std::path::{PathBuf};
 
 use tera::{GlobalFn, Value, from_value, to_value, Result};
 
-use content::Page;
+use content::{Page, Section};
 use site::resolve_internal_link;
 
 
@@ -29,6 +29,28 @@ pub fn make_get_page(all_pages: &HashMap<PathBuf, Page>) -> GlobalFn {
     })
 }
 
+pub fn make_get_section(all_sections: &HashMap<PathBuf, Section>) -> GlobalFn {
+    let mut sections = HashMap::new();
+    for section in all_sections.values() {
+        sections.insert(section.file.relative.clone(), section.clone());
+    }
+
+    Box::new(move |args| -> Result<Value> {
+        match args.get("path") {
+            Some(val) => match from_value::<String>(val.clone()) {
+                Ok(v) => {
+                    match sections.get(&v) {
+                        Some(p) => Ok(to_value(p).unwrap()),
+                        None => Err(format!("Section `{}` not found.", v).into())
+                    }
+                },
+                Err(_) => Err(format!("`get_section` received path={:?} but it requires a string", val).into()),
+            },
+            None => Err("`get_section` requires a `path` argument.".into()),
+        }
+    })
+}
+
 pub fn make_get_url(permalinks: HashMap<String, String>,) -> GlobalFn {
     Box::new(move |args| -> Result<Value> {
         match args.get("link") {