Implement fetch popup

Author: pritchett

README.md

@@ -222,6 +222,7 @@ List of status commands:
 * HelpPopup
 * PullPopup
 * PushPopup
+* FetchPopup
 * CommitPopup
 * LogPopup
 * StashPopup
@@ -278,6 +279,7 @@ Neogit emits the following events:
 | `NeogitCommitComplete`  | Commit has been created          |
 | `NeogitPushComplete`    | Push has completed               |
 | `NeogitPullComplete`    | Pull has completed               |
+| `NeogitFetchComplete`   | Fetch has completed              |
 
 You can listen to the events using the following code:
 

doc/neogit.txt

@@ -100,6 +100,8 @@ p                       Open pull popup
 
                                                 *neogit_P*
 P                       Open push popup
+                                                *neogit_f*
+f                       Open fetch popup
 ==============================================================================
 4. Highlights                                    *neogit-highlights*
 

doc/tags

@@ -24,3 +24,4 @@ neogit_p	neogit.txt	/*neogit_p*
 neogit_s	neogit.txt	/*neogit_s*
 neogit_u	neogit.txt	/*neogit_u*
 neogit_x	neogit.txt	/*neogit_x*
+neogit_f	neogit.txt	/*neogit_f*

lua/neogit/config.lua

@@ -92,6 +92,7 @@ M.values = {
       ["L"] = "LogPopup",
       ["Z"] = "StashPopup",
       ["b"] = "BranchPopup",
+      ["f"] = "FetchPopup",
     },
   },
 }

lua/neogit/lib/git/cli.lua

@@ -221,6 +221,7 @@ local configurations = {
       end,
     },
   },
+  fetch = config {},
   ["read-tree"] = config {
     flags = {
       merge = "-m",

lua/neogit/lib/git/fetch.lua

@@ -0,0 +1,14 @@
+local cli = require("neogit.lib.git.cli")
+
+local M = {}
+
+---Fetches from the remote and handles password questions
+---@param remote string
+---@param branch string
+---@param args string[]
+---@return ProcessResult
+function M.fetch_interactive(remote, branch, args)
+  return cli.fetch.args(remote or "", branch or "").arg_list(args).call_interactive()
+end
+
+return M

lua/neogit/popups.lua

@@ -5,4 +5,5 @@ return {
   pull = require("neogit.popups.pull"),
   stash = require("neogit.popups.stash"),
   help = require("neogit.popups.help"),
+  fetch = require("neogit.popups.fetch"),
 }

lua/neogit/popups/fetch.lua

@@ -0,0 +1,59 @@
+local popup = require("neogit.lib.popup")
+local git = require("neogit.lib.git")
+local a = require("plenary.async")
+local notif = require("neogit.lib.notification")
+local fetch_lib = require("neogit.lib.git.fetch")
+local input = require("neogit.lib.input")
+local status = require("neogit.status")
+
+local M = {}
+
+local function fetch_from(name, remote, branch, args)
+  notif.create("Fetching from " .. name)
+  local res = fetch_lib.fetch_interactive(remote, branch, args)
+
+  if res and res.code == 0 then
+    a.util.scheduler()
+    notif.create("Fetched from " .. name)
+    vim.cmd("do <nomodeline> User NeogitFetchComplete")
+  end
+end
+
+function M.create()
+  local p = popup
+      .builder()
+      :name("NeogitFetchPopup")
+      :switch("p", "prune", "Prune deleted branches", false)
+      :switch("t", "tags", "Fetch all tags", false)
+      :action("p", "Fetch from pushremote", function(popup)
+
+        fetch_from("pushremote", "origin", status.repo.head.branch, popup:get_arguments())
+      end)
+      :action("u", "Fetch from upstream", function(popup)
+
+        local upstream = git.branch.get_upstream()
+        if not upstream then
+          return
+        end
+
+        fetch_from(upstream.remote, upstream.remote, "", popup:get_arguments())
+      end)
+      :action("a", "Fetch from all remotes", function(popup)
+        local args = popup:get_arguments()
+        table.insert(args, "--all")
+
+        fetch_from("all remotes", "", "", args)
+      end)
+      :action("e", "Fetch from elsewhere", function(popup)
+        local remote = input.get_user_input("remote: ")
+        local branch = git.branch.prompt_for_branch()
+        fetch_from(remote .. ' ' .. branch, remote, branch, popup:get_arguments())
+      end)
+      :build()
+
+  p:show()
+
+  return p
+end
+
+return M

lua/neogit/popups/help.lua

@@ -31,6 +31,9 @@ function M.create(env)
     :action("b", "Branch", function()
       require("neogit.popups.branch").create()
     end)
+    :action("f", "Fetch", function()
+      require('neogit.popups.fetch').create()
+    end)
     :action("$", "Git Command History", function()
       GitCommandHistory:new():show()
     end)

lua/neogit/status.lua

@@ -981,6 +981,7 @@ local cmd_func_map = function()
       }
     end,
     ["BranchPopup"] = require("neogit.popups.branch").create,
+    ["FetchPopup"] = require("neogit.popups.fetch").create,
   }
 end