1 files changed, 14 insertions, 1 deletions

diff --git a/src/site.rs b/src/site.rs
index 2d1368d..3200b58 100644
--- a/src/site.rs
+++ b/src/site.rs
@@ -1,4 +1,5 @@
 use crate::error::SiteError;
+use crate::git::git_whatchanged;
 use crate::name::{Name, NameBuilder, Names};
 use crate::page::{MarkdownPage, UnprocessedPage, WikitextPage};
 use crate::parser::WikitextParser;
@@ -7,6 +8,7 @@ use crate::util::make_relative_link;
 use log::{debug, info, trace};
 use std::collections::HashMap;
 use std::path::{Path, PathBuf};
+use std::time::SystemTime;
 use walkdir::WalkDir;
 
 pub struct Site {
@@ -18,6 +20,7 @@ pub struct Site {
     patterns: TokenPatterns,
     name_queue: Vec<Name>,
     page_queue: PageSet,
+    whatchanged: HashMap<PathBuf, SystemTime>,
 }
 
 impl Site {
@@ -37,10 +40,12 @@ impl Site {
             patterns: TokenPatterns::default(),
             name_queue: vec![],
             page_queue: PageSet::default(),
+            whatchanged: HashMap::new(),
         }
     }
 
     pub fn scan(&mut self) -> Result<(), SiteError> {
+        self.whatchanged = git_whatchanged(self.builder.srcdir())?;
         for name in self.all_files()? {
             trace!("scan: name={}", name);
             if name.is_wikitext_page() {
@@ -85,7 +90,10 @@ impl Site {
     fn process_name(&mut self) -> Result<bool, SiteError> {
         if let Some(name) = self.name_queue.pop() {
             debug!("loading wikitext page {}", name.source_path().display());
-            let page = WikitextPage::read(&name)?;
+            let mut page = WikitextPage::read(&name)?;
+            if let Some(mtime) = self.git_commit_timestamp(&name) {
+                page.meta_mut().set_mtime(mtime);
+            }
             self.files.insert(name);
             self.add_wikitextpage(page);
             Ok(true)
@@ -95,6 +103,11 @@ impl Site {
         }
     }
 
+    fn git_commit_timestamp(&self, name: &Name) -> Option<SystemTime> {
+        let relative = name.source_path().strip_prefix(&self.builder.srcdir()).unwrap();
+        self.whatchanged.get(relative).copied()
+    }
+
     fn process_wikipage(&mut self) -> Result<bool, SiteError> {
         if let Some(page) = self.wikitext_pages.pop() {
             debug!("processing wikitext page {}", page.meta().path().display());