From 3218c2d9ec6f88f00d46775f67c1b2dca436af4c Mon Sep 17 00:00:00 2001
From: Folke Lemaitre <folke.lemaitre@gmail.com>
Date: Tue, 22 Nov 2022 21:12:50 +0100
Subject: [PATCH] feat: git log

---
 .gitignore                 |  1 +
 lua/lazy/manager.lua       | 11 +++++++++++
 lua/lazy/task.lua          | 30 +++++++++++++++++++++++++-----
 lua/lazy/view/commands.lua |  3 +++
 lua/lazy/view/render.lua   | 19 +++++++++++++++++++
 lua/lazy/view/sections.lua |  8 ++++++++
 lua/lazy/view/text.lua     | 17 ++++++++++++++++-
 7 files changed, 83 insertions(+), 6 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..20acaa4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+tt.lua
diff --git a/lua/lazy/manager.lua b/lua/lazy/manager.lua
index f4c8096..05f1cd5 100644
--- a/lua/lazy/manager.lua
+++ b/lua/lazy/manager.lua
@@ -53,6 +53,9 @@ function M.run(operation, opts, filter)
         runner:add(Task.new(plugin, "run"))
       end
       plugin.dirty = false
+      if operation == "update" then
+        runner:add(Task.new(plugin, "log"))
+      end
     end
     -- wait for post-install to finish
     runner:wait(on_done)
@@ -85,6 +88,14 @@ function M.update(opts)
   end)
 end
 
+---@param opts? ManagerOpts
+function M.log(opts)
+  ---@param plugin LazyPlugin
+  M.run("log", opts, function(plugin)
+    return plugin.uri and plugin.installed
+  end)
+end
+
 ---@param opts? ManagerOpts
 function M.clean(opts)
   opts = opts or {}
diff --git a/lua/lazy/task.lua b/lua/lazy/task.lua
index f330228..8b9d4b1 100644
--- a/lua/lazy/task.lua
+++ b/lua/lazy/task.lua
@@ -8,7 +8,7 @@ local Util = require("lazy.util")
 ---@field running boolean
 local Task = {}
 
----@alias TaskType "update"|"install"|"run"|"clean"
+---@alias TaskType "update"|"install"|"run"|"clean"|"log"
 
 ---@param plugin LazyPlugin
 ---@param type TaskType
@@ -27,7 +27,6 @@ end
 
 function Task:_done()
   self.running = false
-
   vim.cmd("do User LazyRender")
 end
 
@@ -54,7 +53,7 @@ function Task:clean()
   end
 
   self.plugin.installed = false
-  self.running = false
+  self:_done()
 end
 
 function Task:install()
@@ -161,16 +160,38 @@ function Task:start()
       self:run()
     elseif self.type == "clean" then
       self:clean()
+    elseif self.type == "log" then
+      self:log()
     end
   end)
 
   if not ok then
     self.error = err or "failed"
-
     self:_done()
   end
 end
 
+function Task:log()
+  if not Util.file_exists(self.plugin.dir .. "/.git") then
+    self:_done()
+    return
+  end
+
+  local args = {
+    "log",
+    "--pretty=format:%h %s (%cr)",
+    "--abbrev-commit",
+    "--decorate",
+    "--date=short",
+    "--color=never",
+    "--since='7 days ago'",
+  }
+  self:spawn("git", {
+    args = args,
+    cwd = self.plugin.dir,
+  })
+end
+
 function Task:update()
   if Util.file_exists(self.plugin.uri) then
     if vim.loop.fs_realpath(self.plugin.uri) ~= vim.loop.fs_realpath(self.plugin.dir) then
@@ -180,7 +201,6 @@ function Task:update()
       })
       vim.opt.runtimepath:append(self.plugin.uri)
     end
-
     self:_done()
   else
     local args = {
diff --git a/lua/lazy/view/commands.lua b/lua/lazy/view/commands.lua
index 67b6ba9..43a2961 100644
--- a/lua/lazy/view/commands.lua
+++ b/lua/lazy/view/commands.lua
@@ -21,6 +21,9 @@ M.commands = {
   install = function()
     Manager.install({ clear = true, show = true })
   end,
+  log = function()
+    Manager.log({ clear = true, show = true })
+  end,
   show = function()
     View.show()
   end,
diff --git a/lua/lazy/view/render.lua b/lua/lazy/view/render.lua
index 4afda31..272c615 100644
--- a/lua/lazy/view/render.lua
+++ b/lua/lazy/view/render.lua
@@ -119,6 +119,25 @@ function M:plugin(plugin)
             self:nl()
           end
         end
+      elseif task.type == "log" then
+        local log = vim.trim(task.output)
+        if log ~= "" then
+          local lines = vim.split(log, "\n")
+          for l, line in ipairs(lines) do
+            if l == 1 then
+              self:nl()
+            end
+            local ref, msg, time = line:match("^(%w+) (.*) (%(.*%))$")
+            self:append("      " .. ref .. " ", "@variable.builtin")
+            local col = self:col()
+            self:append(msg)
+            -- string.gsub
+            self:append(" " .. time, "Comment")
+            if l ~= #lines then
+              self:nl()
+            end
+          end
+        end
       end
     end
   end
diff --git a/lua/lazy/view/sections.lua b/lua/lazy/view/sections.lua
index c60c23e..64e101e 100644
--- a/lua/lazy/view/sections.lua
+++ b/lua/lazy/view/sections.lua
@@ -51,6 +51,14 @@ return {
     end,
     title = "Running",
   },
+  {
+    filter = function(plugin)
+      return has_task(plugin, function(task)
+        return task.type == "log" and vim.trim(task.output) ~= ""
+      end)
+    end,
+    title = "Log",
+  },
   {
     filter = function(plugin)
       return plugin.installed and not plugin.uri
diff --git a/lua/lazy/view/text.lua b/lua/lazy/view/text.lua
index 259071c..e4df4cb 100644
--- a/lua/lazy/view/text.lua
+++ b/lua/lazy/view/text.lua
@@ -16,7 +16,7 @@ function Text.new()
 end
 
 ---@param str string
----@param hl string|table
+---@param hl? string|table
 function Text:append(str, hl)
   if #self._lines == 0 then
     self:nl()
@@ -84,4 +84,19 @@ function Text:trim()
   end
 end
 
+function Text:row()
+  return #self._lines == 0 and 1 or #self._lines
+end
+
+function Text:col()
+  if #self._lines == 0 then
+    return 0
+  end
+  local width = 0
+  for _, segment in ipairs(self._lines[#self._lines]) do
+    width = width + vim.fn.strlen(segment.str)
+  end
+  return width
+end
+
 return Text