Fix PlugStatus reporting divergence when a tag is specified (#1321)

Before this commit, commands like this -
	:tab Git diff HEAD^ HEAD
were interpreted like this -
	:Git diff HEAD^ HEAD
This commit fixes that issue.

README.md

@@ -1,21 +1,26 @@
-<div align="center">
-<sup>Special thanks to:</sup>
-<br>
-<br>
-<a href="https://warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=vimplug_20240209">
-  <div>
-    <img src="https://raw.githubusercontent.com/junegunn/i/master/warp.png" width="300" alt="Warp">
-  </div>
-  <b>Warp is a modern, Rust-based terminal with AI built in so you and your team can build great software, faster.</b>
-  <div>
-    <sup>Visit warp.dev to learn more.</sup>
-  </div>
-</a>
-<br>
-<hr>
-</div>
-<br>
+<div align="center" markdown="1">
+  <sup>Special thanks to:</sup>
+  <br>
+  <a href="https://tuple.app/vim-plug">
+    <img alt="Tuple's sponsorship image" src="https://raw.githubusercontent.com/junegunn/i/master/tuple.png" width="400">
+  </a>
 
+### [Tuple, the premier screen sharing app for developers](https://tuple.app/vim-plug)
+[Available for MacOS & Windows](https://tuple.app/vim-plug)<br>
+
+---
+
+   <sup>Special thanks to:</sup>
+   <br>
+   <a href="https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=vim-plug">
+      <img alt="Warp sponsorship" width="400" src="https://github.com/user-attachments/assets/ab8dd143-b0fd-4904-bdc5-dd7ecac94eae">
+   </a>
+
+### [Warp, the intelligent terminal for developers](https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=vim-plug)
+[Available for MacOS, Linux, & Windows](https://www.warp.dev/?utm_source=github&utm_medium=referral&utm_campaign=vim-plug)<br>
+
+</div>
+<hr>
 <h1 title="vim-plug">
   <picture>
     <source media="(prefers-color-scheme: dark)" srcset="./plug-dark.png">
@@ -315,7 +320,7 @@ vim.cmd('silent! colorscheme seoul256')
 - `S` - `PlugStatus`
 - `R` - Retry failed update or installation tasks
 - `U` - Update plugins in the selected range
-- `q` - Close the window
+- `q` - Abort the running tasks or close the window
 - `:PlugStatus`
     - `L` - Load plugin
 - `:PlugDiff`

plug.vim

@@ -372,8 +372,10 @@ function! plug#end()
 
   for [cmd, names] in items(lod.cmd)
     execute printf(
-    \ 'command! -nargs=* -range -bang -complete=file %s call s:lod_cmd(%s, "<bang>", <line1>, <line2>, <q-args>, %s)',
-    \ cmd, string(cmd), string(names))
+    \ has('patch-7.4.1898')
+    \ ? 'command! -nargs=* -range -bang -complete=file %s call s:lod_cmd(%s, "<bang>", <line1>, <line2>, <q-args>, <q-mods> ,%s)'
+    \ : 'command! -nargs=* -range -bang -complete=file %s call s:lod_cmd(%s, "<bang>", <line1>, <line2>, <q-args>, %s)'
+    \ , cmd, string(cmd), string(names))
   endfor
 
   for [map, names] in items(lod.map)
@@ -651,11 +653,19 @@ function! s:lod_ft(pat, names)
   call s:doautocmd('filetypeindent', 'FileType')
 endfunction
 
-function! s:lod_cmd(cmd, bang, l1, l2, args, names)
+if has('patch-7.4.1898')
+  function! s:lod_cmd(cmd, bang, l1, l2, args, mods, names)
+    call s:lod(a:names, ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
+    call s:dobufread(a:names)
+    execute printf('%s %s%s%s %s', a:mods, (a:l1 == a:l2 ? '' : (a:l1.','.a:l2)), a:cmd, a:bang, a:args)
+  endfunction
+else
+  function! s:lod_cmd(cmd, bang, l1, l2, args, names)
     call s:lod(a:names, ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
     call s:dobufread(a:names)
     execute printf('%s%s%s %s', (a:l1 == a:l2 ? '' : (a:l1.','.a:l2)), a:cmd, a:bang, a:args)
-endfunction
+  endfunction
+endif
 
 function! s:lod_map(map, names, with_prefix, prefix)
   call s:lod(a:names, ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
@@ -783,10 +793,11 @@ endfunction
 function! s:syntax()
   syntax clear
   syntax region plug1 start=/\%1l/ end=/\%2l/ contains=plugNumber
-  syntax region plug2 start=/\%2l/ end=/\%3l/ contains=plugBracket,plugX
+  syntax region plug2 start=/\%2l/ end=/\%3l/ contains=plugBracket,plugX,plugAbort
   syn match plugNumber /[0-9]\+[0-9.]*/ contained
   syn match plugBracket /[[\]]/ contained
   syn match plugX /x/ contained
+  syn match plugAbort /\~/ contained
   syn match plugDash /^-\{1}\ /
   syn match plugPlus /^+/
   syn match plugStar /^*/
@@ -811,6 +822,7 @@ function! s:syntax()
   hi def link plug2       Repeat
   hi def link plugH2      Type
   hi def link plugX       Exception
+  hi def link plugAbort   Ignore
   hi def link plugBracket Structure
   hi def link plugNumber  Number
 
@@ -908,7 +920,7 @@ function! s:prepare(...)
     endif
   endfor
 
-  call s:job_abort()
+  call s:job_abort(0)
   if s:switch_in()
     if b:plug_preview == 1
       pc
@@ -944,6 +956,8 @@ function! s:close_pane()
   if b:plug_preview == 1
     pc
     let b:plug_preview = -1
+  elseif exists('s:jobs') && !empty(s:jobs)
+    call s:job_abort(1)
   else
     bd
   endif
@@ -1071,12 +1085,16 @@ function! s:hash_match(a, b)
   return stridx(a:a, a:b) == 0 || stridx(a:b, a:a) == 0
 endfunction
 
+function! s:disable_credential_helper()
+  return s:git_version_requirement(2) && get(g:, 'plug_disable_credential_helper', 1)
+endfunction
+
 function! s:checkout(spec)
   let sha = a:spec.commit
   let output = s:git_revision(a:spec.dir)
   let error = 0
   if !empty(output) && !s:hash_match(sha, s:lines(output)[0])
-    let credential_helper = s:git_version_requirement(2) ? '-c credential.helper= ' : ''
+    let credential_helper = s:disable_credential_helper() ? '-c credential.helper= ' : ''
     let output = s:system(
           \ 'git '.credential_helper.'fetch --depth 999999 && git checkout '.plug#shellescape(sha).' --', a:spec.dir)
     let error = v:shell_error
@@ -1326,7 +1344,12 @@ function! s:update_finish()
   endif
 endfunction
 
-function! s:job_abort()
+function! s:mark_aborted(name, message)
+  let attrs = { 'running': 0, 'error': 1, 'abort': 1, 'lines': [a:message] }
+  let s:jobs[a:name] = extend(get(s:jobs, a:name, {}), attrs)
+endfunction
+
+function! s:job_abort(cancel)
   if (!s:nvim && !s:vim8) || !exists('s:jobs')
     return
   endif
@@ -1340,8 +1363,18 @@ function! s:job_abort()
     if j.new
       call s:rm_rf(g:plugs[name].dir)
     endif
+    if a:cancel
+      call s:mark_aborted(name, 'Aborted')
+    endif
   endfor
+
+  if a:cancel
+    for todo in values(s:update.todo)
+      let todo.abort = 1
+    endfor
+  else
     let s:jobs = {}
+  endif
 endfunction
 
 function! s:last_non_empty_line(lines)
@@ -1355,6 +1388,16 @@ function! s:last_non_empty_line(lines)
   return ''
 endfunction
 
+function! s:bullet_for(job, ...)
+  if a:job.running
+    return a:job.new ? '+' : '*'
+  endif
+  if get(a:job, 'abort', 0)
+    return '~'
+  endif
+  return a:job.error ? 'x' : get(a:000, 0, '-')
+endfunction
+
 function! s:job_out_cb(self, data) abort
   let self = a:self
   let data = remove(self.lines, -1) . a:data
@@ -1363,10 +1406,9 @@ function! s:job_out_cb(self, data) abort
   " To reduce the number of buffer updates
   let self.tick = get(self, 'tick', -1) + 1
   if !self.running || self.tick % len(s:jobs) == 0
-    let bullet = self.running ? (self.new ? '+' : '*') : (self.error ? 'x' : '-')
     let result = self.error ? join(self.lines, "\n") : s:last_non_empty_line(self.lines)
     if len(result)
-      call s:log(bullet, self.name, result)
+      call s:log(s:bullet_for(self), self.name, result)
     endif
   endif
 endfunction
@@ -1380,7 +1422,7 @@ endfunction
 
 function! s:job_cb(fn, job, ch, data)
   if !s:plug_window_exists() " plug window closed
-    return s:job_abort()
+    return s:job_abort(0)
   endif
   call call(a:fn, [a:job, a:data])
 endfunction
@@ -1452,17 +1494,16 @@ function! s:reap(name)
   endif
 
   let more = len(get(job, 'queue', []))
-  let bullet = job.error ? 'x' : more ? (job.new ? '+' : '*') : '-'
   let result = job.error ? join(job.lines, "\n") : s:last_non_empty_line(job.lines)
   if len(result)
-    call s:log(bullet, a:name, result)
+    call s:log(s:bullet_for(job), a:name, result)
   endif
 
   if !job.error && more
     let job.spec.queue = job.queue
     let s:update.todo[a:name] = job.spec
   else
-    let s:update.bar .= job.error ? 'x' : '='
+    let s:update.bar .= s:bullet_for(job, '=')
     call s:bar()
   endif
 endfunction
@@ -1541,6 +1582,12 @@ while 1 " Without TCO, Vim stack is bound to explode
 
   let name = keys(s:update.todo)[0]
   let spec = remove(s:update.todo, name)
+  if get(spec, 'abort', 0)
+    call s:mark_aborted(name, 'Skipped')
+    call s:reap(name)
+    continue
+  endif
+
   let queue = get(spec, 'queue', [])
   let new = empty(globpath(spec.dir, '.git', 1))
 
@@ -1556,7 +1603,7 @@ while 1 " Without TCO, Vim stack is bound to explode
     let [error, _] = s:git_validate(spec, 0)
     if empty(error)
       if pull
-        let cmd = s:git_version_requirement(2) ? ['git', '-c', 'credential.helper=', 'fetch'] : ['git', 'fetch']
+        let cmd = s:disable_credential_helper() ? ['git', '-c', 'credential.helper=', 'fetch'] : ['git', 'fetch']
         if has_tag && !empty(globpath(spec.dir, '.git/shallow'))
           call extend(cmd, ['--depth', '99999999'])
         endif
@@ -2336,7 +2383,9 @@ function! s:git_validate(spec, check_branch)
       let err = join(['Invalid URI: '.remote,
                     \ 'Expected:    '.a:spec.uri,
                     \ 'PlugClean required.'], "\n")
-    elseif a:check_branch && has_key(a:spec, 'commit')
+    elseif !a:check_branch
+      return ['', 0]
+    elseif has_key(a:spec, 'commit')
       let sha = s:git_revision(a:spec.dir)
       if empty(sha)
         let err = join(add(result, 'PlugClean required.'), "\n")
@@ -2345,18 +2394,16 @@ function! s:git_validate(spec, check_branch)
                               \ a:spec.commit[:6], sha[:6]),
                       \ 'PlugUpdate required.'], "\n")
       endif
-    elseif a:check_branch
-      let current_branch = result[0]
-      " Check tag
-      let origin_branch = s:git_origin_branch(a:spec)
-      if has_key(a:spec, 'tag')
+    elseif has_key(a:spec, 'tag')
       let tag = s:system_chomp('git describe --exact-match --tags HEAD 2>&1', a:spec.dir)
       if a:spec.tag !=# tag && a:spec.tag !~ '\*'
         let err = printf('Invalid tag: %s (expected: %s). Try PlugUpdate.',
               \ (empty(tag) ? 'N/A' : tag), a:spec.tag)
       endif
-      " Check branch
-      elseif origin_branch !=# current_branch
+    elseif a:check_branch
+      let current_branch = result[0]
+      let origin_branch = s:git_origin_branch(a:spec)
+      if origin_branch !=# current_branch
         let err = printf('Invalid branch: %s (expected: %s). Try PlugUpdate.',
               \ current_branch, origin_branch)
       endif