1 files changed, 199 insertions, 0 deletions
diff --git a/start/signify/autoload/sy.vim b/start/signify/autoload/sy.vim
new file mode 100644
index 0000000..b994aff
--- /dev/null
+++ b/start/signify/autoload/sy.vim
@@ -0,0 +1,199 @@
+" vim: et sw=2 sts=2
+
+scriptencoding utf-8
+
+" Init: values {{{1
+let s:has_doau_modeline = v:version > 703 || v:version == 703 && has('patch442')
+
+" Function: #start {{{1
+function! sy#start() abort
+  if g:signify_locked
+    call sy#verbose('Locked.')
+    return
+  endif
+
+  let sy_path = resolve(expand('%:p'))
+  if has('win32')
+    let sy_path = substitute(sy_path, '\v^(\w):\\\\', '\1:\\', '')
+  endif
+
+  if s:skip(sy_path)
+    call sy#verbose('Skip file: '. sy_path)
+    if exists('b:sy')
+      call sy#sign#remove_all_signs(bufnr(''))
+      unlet! b:sy
+    endif
+    return
+  endif
+
+  if !exists('b:sy') || b:sy.path != sy_path
+    call sy#verbose('Register new file: '. sy_path)
+    let b:sy = {
+          \ 'path':       sy_path,
+          \ 'buffer':     bufnr(''),
+          \ 'active':     0,
+          \ 'detecting':  0,
+          \ 'vcs':        [],
+          \ 'hunks':      [],
+          \ 'signid':     0x100,
+          \ 'updated_by': '',
+          \ 'stats':      [-1, -1, -1],
+          \ 'info':       {
+          \    'dir':  fnamemodify(sy_path, ':p:h'),
+          \    'path': sy#util#escape(sy_path),
+          \    'file': sy#util#escape(fnamemodify(sy_path, ':t'))
+          \ }}
+    if get(g:, 'signify_disable_by_default')
+      call sy#verbose('Disabled by default.')
+      return
+    endif
+    let b:sy.active = 1
+    call sy#repo#detect()
+  elseif has('vim_starting')
+    call sy#verbose("Don't run Sy more than once during startup.")
+    return
+  elseif !b:sy.active
+    call sy#verbose('Inactive buffer.')
+    return
+  elseif empty(b:sy.vcs)
+    if get(b:sy, 'retry')
+      let b:sy.retry = 0
+      call sy#verbose('Redetecting VCS.')
+      call sy#repo#detect()
+    else
+      if get(b:sy, 'detecting')
+        call sy#verbose('Detection is already in progress.')
+      else
+        call sy#verbose('No VCS found. Disabling.')
+        call sy#disable()
+      endif
+    endif
+  else
+    for vcs in b:sy.vcs
+      let job_id = get(b:, 'sy_job_id_'. vcs)
+      if type(job_id) != type(0) || job_id > 0
+        call sy#verbose('Update is already in progress.', vcs)
+      else
+        call sy#verbose('Updating signs.', vcs)
+        call sy#repo#get_diff_start(vcs)
+      endif
+    endfor
+  endif
+endfunction
+
+" Function: #set_signs {{{1
+function! sy#set_signs(sy, vcs, diff) abort
+  call sy#verbose('set_signs()', a:vcs)
+
+  if a:sy.stats == [-1, -1, -1]
+    let a:sy.stats = [0, 0, 0]
+  endif
+
+  if empty(a:diff)
+    call sy#verbose('No changes found.', a:vcs)
+    let a:sy.stats = [0, 0, 0]
+    call sy#sign#remove_all_signs(a:sy.buffer)
+    return
+  endif
+
+  if get(g:, 'signify_line_highlight')
+    call sy#highlight#line_enable()
+  else
+    call sy#highlight#line_disable()
+  endif
+
+  call sy#sign#process_diff(a:sy, a:vcs, a:diff)
+
+  if exists('#User#Signify')
+    execute 'doautocmd' (s:has_doau_modeline ? '<nomodeline>' : '') 'User Signify'
+  endif
+endfunction
+
+" Function: #stop {{{1
+function! sy#stop(bufnr) abort
+  let sy = getbufvar(a:bufnr, 'sy')
+  if empty(sy)
+    return
+  endif
+
+  call sy#sign#remove_all_signs(a:bufnr)
+endfunction
+
+" Function: #enable {{{1
+function! sy#enable() abort
+  if !exists('b:sy')
+    call sy#start()
+    return
+  endif
+
+  if !b:sy.active
+    let b:sy.active = 1
+    let b:sy.retry  = 1
+    call sy#start()
+  endif
+endfunction
+
+" Function: #disable {{{1
+function! sy#disable() abort
+  if exists('b:sy') && b:sy.active
+    call sy#stop(b:sy.buffer)
+    let b:sy.active = 0
+    let b:sy.stats = [-1, -1, -1]
+  endif
+endfunction
+
+" Function: #toggle {{{1
+function! sy#toggle() abort
+  if !exists('b:sy') || !b:sy.active
+    call sy#enable()
+  else
+    call sy#disable()
+  endif
+endfunction
+
+" Function: #buffer_is_active {{{1
+function! sy#buffer_is_active()
+  return exists('b:sy') && b:sy.active
+endfunction
+
+" Function: #verbose {{{1
+function! sy#verbose(msg, ...) abort
+  if &verbose
+    if type(a:msg) == type([])
+      for msg in a:msg
+        echomsg printf('[sy%s] %s', (a:0 ? ':'.a:1 : ''), msg)
+      endfor
+    else
+      echomsg printf('[sy%s] %s', (a:0 ? ':'.a:1 : ''), a:msg)
+    endif
+  endif
+endfunction
+
+" Function: s:skip {{{1
+function! s:skip(path)
+  if &diff || !filereadable(a:path)
+    return 1
+  endif
+
+  if exists('g:signify_skip_filetype')
+    if has_key(g:signify_skip_filetype, &filetype)
+      return 1
+    elseif has_key(g:signify_skip_filetype, 'help') && (&buftype == 'help')
+      return 1
+    endif
+  endif
+
+  if exists('g:signify_skip_filename') && has_key(g:signify_skip_filename, a:path)
+    return 1
+  endif
+
+  if exists('g:signify_skip_filename_pattern')
+    for pattern in g:signify_skip_filename_pattern
+      if a:path =~ pattern
+        return 1
+      endif
+    endfor
+  endif
+
+  return 0
+endfunction