feat: Highlight currently open entry in file panel (fixes #284)

Author: sindrets

lua/diffview/hl.lua

@@ -405,6 +405,7 @@ M.hl_links = {
   EndOfBuffer = "EndOfBuffer",
   FilePanelRootPath = "DiffviewFilePanelTitle",
   FilePanelFileName = "Normal",
+  FilePanelSelected = "Type",
   FilePanelPath = "Comment",
   FilePanelInsertions = "diffAdded",
   FilePanelDeletions = "diffRemoved",

lua/diffview/scene/views/diff/diff_view.lua

@@ -171,6 +171,8 @@ end
 ---@private
 ---@param file FileEntry
 function DiffView:_set_file(file)
+  self.panel:render()
+  self.panel:redraw()
   vim.cmd("redraw")
 
   self.cur_layout:detach_files()

lua/diffview/scene/views/diff/render.lua

@@ -6,7 +6,7 @@ local utils = require("diffview.utils")
 ---@param show_path boolean
 ---@param depth integer|nil
 local function render_file(comp, show_path, depth)
-  ---@type table
+  ---@type FileEntry
   local file = comp.context
 
   comp:add_text(file.status .. " ", hl.get_git_hl(file.status))
@@ -17,7 +17,7 @@ local function render_file(comp, show_path, depth)
 
   local icon, icon_hl = hl.get_file_icon(file.basename, file.extension)
   comp:add_text(icon, icon_hl)
-  comp:add_text(file.basename, "DiffviewFilePanelFileName")
+  comp:add_text(file.basename, file.active and "DiffviewFilePanelSelected" or "DiffviewFilePanelFileName")
 
   if file.stats then
     if file.stats.additions then

lua/diffview/scene/views/file_history/file_history_view.lua

@@ -83,6 +83,8 @@ end
 ---@private
 ---@param file FileEntry
 function FileHistoryView:_set_file(file)
+  self.panel:render()
+  self.panel:redraw()
   vim.cmd("redraw")
 
   self.cur_layout:detach_files()

lua/diffview/scene/views/file_history/render.lua

@@ -26,7 +26,7 @@ local function render_files(comp, files)
       comp:add_text(file.parent_path .. "/", "DiffviewFilePanelPath")
     end
 
-    comp:add_text(file.basename, "DiffviewFilePanelFileName")
+    comp:add_text(file.basename, file.active and "DiffviewFilePanelSelected" or "DiffviewFilePanelFileName")
 
     if file.stats then
       comp:add_text(" " .. file.stats.additions, "DiffviewFilePanelInsertions")
@@ -40,10 +40,11 @@ local function render_files(comp, files)
   perf:lap("files")
 end
 
+---@param panel FileHistoryPanel
 ---@param parent CompStruct RenderComponent struct
 ---@param entries LogEntry[]
 ---@param updating boolean
-local function render_entries(parent, entries, updating)
+local function render_entries(panel, parent, entries, updating)
   local c = config.get_config()
   local max_num_files = -1
   local max_len_stats = 7
@@ -112,7 +113,10 @@ local function render_entries(parent, entries, updating)
       subject = "[empty message]"
     end
 
-    comp:add_text(subject .. " ", "DiffviewFilePanelFileName")
+    comp:add_text(
+      subject .. " ",
+      panel.cur_item[1] == entry and "DiffviewFilePanelSelected" or "DiffviewFilePanelFileName"
+    )
 
     if entry.commit then
       -- 3 months
@@ -222,7 +226,7 @@ return {
     perf:lap("header")
 
     if #panel.entries > 0 then
-      render_entries(panel.components.log.entries, panel.entries, panel.updating)
+      render_entries(panel, panel.components.log.entries, panel.entries, panel.updating)
     end
 
     perf:time()

lua/diffview/vcs/adapters/git/commit.lua

@@ -9,15 +9,6 @@ local M = {}
 
 
 ---@class GitCommit : Commit
----@field hash string
----@field author string
----@field time number
----@field time_offset number
----@field date string
----@field rel_date string
----@field ref_names string
----@field subject string
----@field body string
 local GitCommit = oop.create_class("GitCommit", Commit.__get())
 
 function GitCommit:init(opt)

lua/diffview/vcs/commit.lua

@@ -12,6 +12,7 @@ local M = {}
 ---@field time number
 ---@field time_offset number
 ---@field date string
+---@field iso_date string
 ---@field rel_date string
 ---@field ref_names string
 ---@field subject string
@@ -26,7 +27,6 @@ function Commit:init(opt)
   self.ref_names = opt.ref_names ~= "" and opt.ref_names or nil
   self.subject = opt.subject
   self.body = opt.body
-
 end
 
 ---@diagnostic disable: unused-local, missing-return