19 files changed, 982 insertions, 7 deletions
diff --git a/README.md b/README.md
index 8c744c10..6789eb72 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ A collection of language packs for Vim.
 > One to rule them all, one to find them, one to bring them all and in the darkness bind them.
 
 - It **won't affect your startup time**, as scripts are loaded only on demand\*.
-- It **installs and updates 120+ times faster** than the <!--Package Count-->190<!--/Package Count--> packages it consists of.
+- It **installs and updates 120+ times faster** than the <!--Package Count-->191<!--/Package Count--> packages it consists of.
 - It is more secure because scripts loaded for all extensions are generated by vim-polyglot (ftdetect).
 - Solid syntax and indentation support (other features skipped). Only the best language packs.
 - All unnecessary files are ignored (like enormous documentation from php support).
@@ -130,6 +130,7 @@ If you need full functionality of any plugin, please use it directly with your p
 - [html5](https://github.com/othree/html5.vim)
 - [i3](https://github.com/mboughaba/i3config.vim)
 - [icalendar](https://github.com/chutzpah/icalendar.vim)
+- [idris2](https://github.com/edwinb/idris2-vim)
 - [idris](https://github.com/idris-hackers/idris-vim)
 - [ion](https://github.com/vmchale/ion-vim)
 - [javascript-sql](https://github.com/statico/vim-javascript-sql)
diff --git a/after/ftplugin/idris2.vim b/after/ftplugin/idris2.vim
new file mode 100644
index 00000000..b96ae5b6
--- /dev/null
+++ b/after/ftplugin/idris2.vim
@@ -0,0 +1,5 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+setlocal iskeyword+='
+
+endif
diff --git a/after/syntax/idris2.vim b/after/syntax/idris2.vim
new file mode 100644
index 00000000..85f674a9
--- /dev/null
+++ b/after/syntax/idris2.vim
@@ -0,0 +1,82 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+" This script allows for unicode concealing of certain characters
+" For instance -> goes to →
+"
+" It needs vim >= 7.3, set nocompatible, set enc=utf-8
+"
+" If you want to turn this on, let g:idris_conceal = 1
+
+if !exists('g:idris_conceal') || !has('conceal') || &enc != 'utf-8'
+    finish
+endif
+
+" vim: set fenc=utf-8:
+syntax match idrNiceOperator "\\\ze[[:alpha:][:space:]_([]" conceal cchar=λ
+syntax match idrNiceOperator "<-" conceal cchar=←
+syntax match idrNiceOperator "->" conceal cchar=→
+syntax match idrNiceOperator "\<sum\>" conceal cchar=∑
+syntax match idrNiceOperator "\<product\>" conceal cchar=∏
+syntax match idrNiceOperator "\<sqrt\>" conceal cchar=√
+syntax match idrNiceOperator "\<pi\>" conceal cchar=π
+syntax match idrNiceOperator "==" conceal cchar=≡
+syntax match idrNiceOperator "\/=" conceal cchar=≠
+
+
+let s:extraConceal = 1
+
+let s:doubleArrow = 1
+" Set this to 0 to use the more technically correct arrow from bar
+
+" Some windows font don't support some of the characters,
+" so if they are the main font, we don't load them :)
+if has("win32")
+    let s:incompleteFont = [ 'Consolas'
+                        \ , 'Lucida Console'
+                        \ , 'Courier New'
+                        \ ]
+    let s:mainfont = substitute( &guifont, '^\([^:,]\+\).*', '\1', '')
+    for s:fontName in s:incompleteFont
+        if s:mainfont ==? s:fontName
+            let s:extraConceal = 0
+            break
+        endif
+    endfor
+endif
+
+if s:extraConceal
+    syntax match idrNiceOperator "Void" conceal cchar=⊥
+
+    " Match greater than and lower than w/o messing with Kleisli composition
+    syntax match idrNiceOperator "<=\ze[^<]" conceal cchar=≤
+    syntax match idrNiceOperator ">=\ze[^>]" conceal cchar=≥
+
+    if s:doubleArrow
+      syntax match idrNiceOperator "=>" conceal cchar=⇒
+    else
+      syntax match idrNiceOperator "=>" conceal cchar=↦
+    endif
+
+    syntax match idrNiceOperator "=\zs<<" conceal cchar=«
+
+    syntax match idrNiceOperator "++" conceal cchar=⧺
+    syntax match idrNiceOperator "::" conceal cchar=∷
+    syntax match idrNiceOperator "-<" conceal cchar=↢
+    syntax match idrNiceOperator ">-" conceal cchar=↣
+    syntax match idrNiceOperator "-<<" conceal cchar=⤛
+    syntax match idrNiceOperator ">>-" conceal cchar=⤜
+
+    " Only replace the dot, avoid taking spaces around.
+    syntax match idrNiceOperator /\s\.\s/ms=s+1,me=e-1 conceal cchar=∘
+    syntax match idrNiceOperator "\.\." conceal cchar=‥
+
+    syntax match idrNiceOperator "`elem`" conceal cchar=∈
+    syntax match idrNiceOperator "`notElem`" conceal cchar=∉
+endif
+
+hi link idrNiceOperator Operator
+hi! link Conceal Operator
+setlocal conceallevel=2
+
+
+endif
diff --git a/autoload/cargo/quickfix.vim b/autoload/cargo/quickfix.vim
index e1e5b9d2..cce7fcbb 100644
--- a/autoload/cargo/quickfix.vim
+++ b/autoload/cargo/quickfix.vim
@@ -1,7 +1,8 @@
 if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'rust') == -1
 
 function! cargo#quickfix#CmdPre() abort
-    if &filetype ==# 'rust' && get(b:, 'current_compiler', '') ==# 'cargo'
+    if &filetype ==# 'rust' && get(b:, 'current_compiler', '') ==# 'cargo' &&
+         \ &makeprg =~ '\V\^cargo\ \.\*'
         " Preserve the current directory, and 'lcd' to the nearest Cargo file.
         let b:rust_compiler_cargo_qf_has_lcd = haslocaldir()
         let b:rust_compiler_cargo_qf_prev_cd = getcwd()
diff --git a/autoload/polyglot.vim b/autoload/polyglot.vim
index 3753dc8e..eca7e304 100644
--- a/autoload/polyglot.vim
+++ b/autoload/polyglot.vim
@@ -212,6 +212,50 @@ func! polyglot#DetectReFiletype()
   endfor
 endfunc
 
+func! polyglot#DetectIdrFiletype()
+  for lnum in range(1, min([line("$"), 5]))
+    let line = getline(lnum)
+    if line =~# '^\s*--.*[Ii]dris \=1'
+      setf idris | return
+    endif
+    if line =~# '^\s*--.*[Ii]dris \=2'
+      setf idris2 | return
+    endif
+  endfor
+  for lnum in range(1, min([line("$"), 30]))
+    let line = getline(lnum)
+    if line =~# '^pkgs =.*'
+      setf idris | return
+    endif
+    if line =~# '^depends =.*'
+      setf idris2 | return
+    endif
+    if line =~# '^%language \(TypeProviders\|ElabReflection\)'
+      setf idris | return
+    endif
+    if line =~# '^%language PostfixProjections'
+      setf idris2 | return
+    endif
+    if line =~# '^%access .*'
+      setf idris | return
+    endif
+    if exists("g:filetype_idr")
+      exe "setf " . g:filetype_idr | return
+    endif
+  endfor
+  setf idris2 | return
+endfunc
+
+func! polyglot#DetectLidrFiletype()
+  for lnum in range(1, min([line("$"), 200]))
+    let line = getline(lnum)
+    if line =~# '^>\s*--.*[Ii]dris \=1'
+      setf lidris | return
+    endif
+  endfor
+  setf lidris2 | return
+endfunc
+
 " Restore 'cpoptions'
 let &cpo = s:cpo_save
 unlet s:cpo_save
diff --git a/autoload/rustfmt.vim b/autoload/rustfmt.vim
index 514e4147..60e2029e 100644
--- a/autoload/rustfmt.vim
+++ b/autoload/rustfmt.vim
@@ -65,12 +65,12 @@ endfunction
 function! s:RustfmtConfigOptions()
     let l:rustfmt_toml = findfile('rustfmt.toml', expand('%:p:h') . ';')
     if l:rustfmt_toml !=# ''
-        return '--config-path '.fnamemodify(l:rustfmt_toml, ":p")
+        return '--config-path '.shellescape(fnamemodify(l:rustfmt_toml, ":p"))
     endif
 
     let l:_rustfmt_toml = findfile('.rustfmt.toml', expand('%:p:h') . ';')
     if l:_rustfmt_toml !=# ''
-        return '--config-path '.fnamemodify(l:_rustfmt_toml, ":p")
+        return '--config-path '.shellescape(fnamemodify(l:_rustfmt_toml, ":p"))
     endif
 
     " Default to edition 2018 in case no rustfmt.toml was found.
diff --git a/autoload/sleuth.vim b/autoload/sleuth.vim
index a912cda4..e70169cb 100644
--- a/autoload/sleuth.vim
+++ b/autoload/sleuth.vim
@@ -103,6 +103,7 @@ let s:globs = {
   \ 'i3config': '*.i3.config,*.i3config,i3.config,i3config',
   \ 'icalendar': '*.ics',
   \ 'idris': '*.idr,*.lidr,idris-response',
+  \ 'idris2': '*.idr,*.ipkg,idris-response',
   \ 'ion': '*.ion',
   \ 'javascript': '*.js,*._js,*.bones,*.cjs,*.es,*.es6,*.frag,*.gs,*.jake,*.jsb,*.jscad,*.jsfl,*.jsm,*.jss,*.mjs,*.njs,*.pac,*.sjs,*.ssjs,*.xsjs,*.xsjslib,Jakefile',
   \ 'javascriptreact': '*.jsx',
@@ -116,6 +117,7 @@ let s:globs = {
   \ 'kotlin': '*.kt,*.ktm,*.kts',
   \ 'ledger': '*.ldg,*.ledger,*.journal',
   \ 'less': '*.less',
+  \ 'lidris2': '*.lidr',
   \ 'lilypond': '*.ly,*.ily',
   \ 'litcoffee': '*.litcoffee,*.coffee.md',
   \ 'livescript': '*.ls,*._ls,Slakefile',
diff --git a/doc/idris2-vim.txt b/doc/idris2-vim.txt
new file mode 100644
index 00000000..80a53cfc
--- /dev/null
+++ b/doc/idris2-vim.txt
@@ -0,0 +1,158 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+*idris2-vim.txt*   Last change 2020 February 22
+===============================================================================
+===============================================================================
+   @@@@ @@@@@@@@  @@@@@@@@  @@@@  @@@@@@          @@     @@ @@@@ @@     @@
+    @@  @@     @@ @@     @@  @@  @@    @@         @@     @@  @@  @@@   @@@
+    @@  @@     @@ @@     @@  @@  @@               @@     @@  @@  @@@@ @@@@
+    @@  @@     @@ @@@@@@@@   @@   @@@@@@  @@@@@@@ @@     @@  @@  @@ @@@ @@
+    @@  @@     @@ @@   @@    @@        @@          @@   @@   @@  @@     @@
+    @@  @@     @@ @@    @@   @@  @@    @@           @@ @@    @@  @@     @@
+   @@@@ @@@@@@@@  @@     @@ @@@@  @@@@@@             @@@    @@@@ @@     @@
+===============================================================================
+CONTENTS                                                   *idris-vim-contents*
+
+  1. Features:                                   |idris-vim-features|
+  2. Requirements:                               |idris-vim-requirements|
+  3. Functions:                                  |idris-vim-functions|
+  4. Troubleshooting                             |idris-vim-troubleshooting|
+  5. Examples:                                   |idris-vim-examples|
+  6. Information:                                |idris-vim-information|
+
+===============================================================================
+FEATURES                                                   *idris-vim-features*
+
+  * Syntax Highlighting
+  * Indentation
+  * Unicode Concealing
+  * Syntax Checking (via Syntastic(https://github.com/scrooloose/syntastic))
+  * Interactive Editing via the REPL
+
+===============================================================================
+REQUIREMENTS                                           *idris-vim-requirements*
+
+  * Idris2 (https://github.com/edwinb/Idris2/)
+
+  OPTIONAL:
+
+    * Syntastic(https://github.com/scrooloose/syntastic) for syntax checking
+    * Vimshell(https://github.com/Shougo/vimshell.vim) for a REPL
+
+===============================================================================
+FUNCTIONS                                                 *idris-vim-functions*
+
+All of the functions in idris-vim are essentially just calls back to the REPL,
+so documentation for each of them is also available there.
+
+IdrisDocumentation                                           *IdrisDocumentation*
+  Shows internal documentation of the primitive under the cursor.
+
+  Mapped to '<LocalLeader>_h' by default.
+
+IdrisResponseWin                                              *IdrisResponseWin*
+  This opens an idris response window in a new pane.
+
+  Mapped to '<LocalLeader>_i' by default.
+
+IdrisShowType                                                    *IdrisShowType*
+  This shows the type of the name under the cursor (or, if the cursor happens
+  to be over a metavariable, a bit more information about its context).
+
+  Mapped to '<LocalLeader>_t' by default.
+
+IdrisReload                                                        *IdrisReload*
+  This reloads the file and type-checks the file in the current buffer.
+
+  Mapped to '<LocalLeader>_r' by default.
+
+IdrisEval                                                            *IdrisEval*
+  This prompts for an expression and then evaluates it in the REPL, then
+  returns the result.
+
+  Mapped to '<LocalLeader>_e' by default.
+
+IdrisCaseSplit                                                 *IdrisCaseSplit*
+  When the cursor is over a variable in a pattern match clause or case
+  expression, this splits the variable into all well-typed patterns.
+
+  Mapped to '<LocalLeader>_c' by default
+
+IdrisAddClause                                                 *IdrisAddClause*
+  When the cursor is at a type declaration this creates a new clause for that
+  signature.
+
+  By default mapped to '<LocalLeader>_d' for an ordinary top-level definition,
+  '<LocalLeader>_b' for a typeclass instance definition, and
+  '<LocalLeader>_md' to add a pattern-matching proof clause.
+
+IdrisAddMissing:                                               *IdrisAddMissing*
+  When the cursor is over a function, this adds all clauses necessary to make
+  that function cover all inputs.  This also eliminates clauses which would
+  lead to unification errors from appearing.
+
+  Mapped to '<LocalLeader>_m' by default
+
+IdrisRefine:                                                      *IdrisRefine*
+  Refines the item the cursor is over (applies the name and fills in any
+  arguments which can be filled in via unification)
+
+  Mapped to '<LocalLeader>_f' by default
+
+IdrisProofSearch:                                             *IdrisProofSearch*
+  This attempts to find a value for the metavariable it was called on by
+  looking at the rest of the code.  It can also be called with hints, which
+  are functions that can apply to help solve for the metavariable.
+
+  Mapped to '<LocalLeader>_o' without hints and '<LocalLeader>p' with hints by
+  default
+
+IdrisMakeWith:                                                   *IdrisMakeWith*
+  When the cursor is over a pattern clause and this is called, it creates a
+  new with clause.
+
+  Mapped to '<LocalLeader>_w' by default
+
+IdrisMakeLemma:                                                   *IdrisMakeLemma*
+  When the cursor is over a metavariable and this is called, it creates a new
+  top-level definition to solve the metavariable.
+
+  Mapped to '<LocalLeader>_l' by default
+
+===============================================================================
+TROUBLESHOOTING                                      *idris-vim-troubleshooting*
+
+If this isn't working for you, make sure that:
+
+  * There is an Idris REPL running
+  * For syntax checking, you have syntastic installed
+  * The plugins mappings exists and don't conflict with anything else installed
+    (You can use ':map' to check. There should be mappings similar to
+    '\h * :call IdrisShowDoc()'.)
+  * Vim recognizes you're in an idris file (you can use ':verb set ft' to check)
+
+If none of this works, check to issue tracker on github and if nothing is
+there create an issue with a detailed description of the problem.
+
+===============================================================================
+EXAMPLES                                                    *idris-vim-examples*
+
+Some excellent tutorials/examples for interactive editing using the above
+functions can be found at:
+  http://edwinb.wordpress.com/2013/10/28/interactive-idris-editing-with-vim/
+and
+  http://www.scribd.com/doc/214031954/60/Interactive-Editing-in-Vim
+
+===============================================================================
+INFORMATION                                              *idris-vim-information*
+
+Author: edwinb
+Repo: https://github.com/idris-hackers/idris-vim
+
+Documentation by japesinator
+
+===============================================================================
+===============================================================================
+" vim:ft=help:et:ts=2:sw=2:sts=2:norl:
+
+endif
diff --git a/ftdetect/polyglot.vim b/ftdetect/polyglot.vim
index de4665b2..186ba9da 100644
--- a/ftdetect/polyglot.vim
+++ b/ftdetect/polyglot.vim
@@ -795,9 +795,16 @@ if !has_key(s:disabled_packages, 'icalendar')
 endif
 
 if !has_key(s:disabled_packages, 'idris')
-  au BufNewFile,BufRead *.idr setf idris
-  au BufNewFile,BufRead *.lidr setf idris
   au BufNewFile,BufRead idris-response setf idris
+  au! BufNewFile,BufRead *.idr call polyglot#DetectIdrFiletype()
+  au! BufNewFile,BufRead *.lidr call polyglot#DetectLidrFiletype()
+endif
+
+if !has_key(s:disabled_packages, 'idris2')
+  au BufNewFile,BufRead *.ipkg setf idris2
+  au BufNewFile,BufRead idris-response setf idris2
+  au! BufNewFile,BufRead *.idr call polyglot#DetectIdrFiletype()
+  au! BufNewFile,BufRead *.lidr call polyglot#DetectLidrFiletype()
 endif
 
 if !has_key(s:disabled_packages, 'ion')
diff --git a/ftplugin/idris2.vim b/ftplugin/idris2.vim
new file mode 100644
index 00000000..420bc52d
--- /dev/null
+++ b/ftplugin/idris2.vim
@@ -0,0 +1,334 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+if bufname('%') == "idris-response"
+  finish
+endif
+
+if exists("b:did_ftplugin")
+  finish
+endif
+
+setlocal shiftwidth=2
+setlocal tabstop=2
+if !exists("g:idris_allow_tabchar") || g:idris_allow_tabchar == 0
+	setlocal expandtab
+endif
+setlocal comments=s1:{-,mb:-,ex:-},:\|\|\|,:--
+setlocal commentstring=--%s
+setlocal iskeyword+=?
+setlocal wildignore+=*.ibc
+
+let idris_response = 0
+let b:did_ftplugin = 1
+
+" Text near cursor position that needs to be passed to a command.
+" Refinment of `expand(<cword>)` to accomodate differences between
+" a (n)vim word and what Idris requires.
+function! s:currentQueryObject()
+  let word = expand("<cword>")
+  if word =~ '^?'
+    " Cut off '?' that introduces a hole identifier.
+    let word = strpart(word, 1)
+  endif
+  return word
+endfunction
+
+function! s:IdrisCommand(...)
+  let idriscmd = shellescape(join(a:000))
+"  echo("idris2 " . expand ('%:p') . " --client " . idriscmd)
+  return system("idris2 --find-ipkg " . shellescape(expand('%:p')) . " --client " . idriscmd)
+endfunction
+
+function! IdrisDocFold(lineNum)
+  let line = getline(a:lineNum)
+
+  if line =~ "^\s*|||"
+    return "1"
+  endif
+
+  return "0"
+endfunction
+
+function! IdrisFold(lineNum)
+  return IdrisDocFold(a:lineNum)
+endfunction
+
+setlocal foldmethod=expr
+setlocal foldexpr=IdrisFold(v:lnum)
+
+function! IdrisResponseWin()
+  if (!bufexists("idris-response"))
+    botright 10split
+    badd idris-response
+    b idris-response
+    let g:idris_respwin = "active"
+    set buftype=nofile
+    wincmd k
+  elseif (bufexists("idris-response") && g:idris_respwin == "hidden")
+    botright 10split
+    b idris-response
+    let g:idris_respwin = "active"
+    wincmd k
+  endif
+endfunction
+
+function! IdrisHideResponseWin()
+  let g:idris_respwin = "hidden"
+endfunction
+
+function! IdrisShowResponseWin()
+  let g:idris_respwin = "active"
+endfunction
+
+function! IWrite(str)
+  if (bufexists("idris-response"))
+    let save_cursor = getcurpos()
+    b idris-response
+    %delete
+    let resp = split(a:str, '\n')
+    call append(1, resp)
+    b #
+    call setpos('.', save_cursor)
+  else
+    echo a:str
+  endif
+endfunction
+
+function! IdrisReload(q)
+  w
+  let file = expand('%:p')
+  let tc = system("idris2 --find-ipkg " . shellescape(file) . " --client ''")
+  if (! (tc is ""))
+    call IWrite(tc)
+  else
+    if (a:q==0)
+       call IWrite("Successfully reloaded " . file)
+    endif
+  endif
+  return tc
+endfunction
+
+function! IdrisReloadToLine(cline)
+  return IdrisReload(1)
+  "w
+  "let file = expand("%:p")
+  "let tc = s:IdrisCommand(":lto", a:cline, file)
+  "if (! (tc is ""))
+  "  call IWrite(tc)
+  "endif
+  "return tc
+endfunction
+
+function! IdrisShowType()
+  w
+  let word = s:currentQueryObject()
+  let cline = line(".")
+  let ccol = col(".")
+    let ty = s:IdrisCommand(":t", word)
+    call IWrite(ty)
+endfunction
+
+function! IdrisShowDoc()
+  w
+  let word = expand("<cword>")
+  let ty = s:IdrisCommand(":doc", word)
+  call IWrite(ty)
+endfunction
+
+function! IdrisProofSearch(hint)
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = s:currentQueryObject()
+
+  if (a:hint==0)
+     let hints = ""
+  else
+     let hints = input ("Hints: ")
+  endif
+
+  let result = s:IdrisCommand(":ps!", cline, word, hints)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+  endif
+endfunction
+
+function! IdrisGenerateDef()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = s:currentQueryObject()
+
+  let result = s:IdrisCommand(":gd!", cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+  endif
+endfunction
+
+function! IdrisMakeLemma()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = s:currentQueryObject()
+
+  let result = s:IdrisCommand(":ml!", cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+    call search(word, "b")
+  endif
+endfunction
+
+function! IdrisRefine()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = expand("<cword>")
+  let name = input ("Name: ")
+
+  let result = s:IdrisCommand(":ref!", cline, word, name)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+  endif
+endfunction
+
+function! IdrisAddMissing()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = expand("<cword>")
+
+  let result = s:IdrisCommand(":am!", cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+  endif
+endfunction
+
+function! IdrisCaseSplit()
+  w
+  let view = winsaveview()
+  let cline = line(".")
+  let ccol = col(".")
+  let word = expand("<cword>")
+  let result = s:IdrisCommand(":cs!", cline, ccol, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+     e
+     call winrestview(view)
+  endif
+endfunction
+
+function! IdrisMakeWith()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = s:currentQueryObject()
+  let tc = IdrisReload(1)
+
+  let result = s:IdrisCommand(":mw!", cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+    call search("_")
+  endif
+endfunction
+
+function! IdrisMakeCase()
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = s:currentQueryObject()
+
+  let result = s:IdrisCommand(":mc!", cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+    call search("_")
+  endif
+endfunction
+
+function! IdrisAddClause(proof)
+  let view = winsaveview()
+  w
+  let cline = line(".")
+  let word = expand("<cword>")
+
+  if (a:proof==0)
+    let fn = ":ac!"
+  else
+    let fn = ":apc!"
+  endif
+
+  let result = s:IdrisCommand(fn, cline, word)
+  if (! (result is ""))
+     call IWrite(result)
+  else
+    e
+    call winrestview(view)
+    call search(word)
+
+  endif
+endfunction
+
+function! IdrisEval()
+  w
+  let expr = input ("Expression: ")
+  let result = s:IdrisCommand(expr)
+  call IWrite(" = " . result)
+endfunction
+
+nnoremap <buffer> <silent> <LocalLeader>t :call IdrisShowType()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>r :call IdrisReload(0)<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>c :call IdrisCaseSplit()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>a 0:call search(":")<ENTER>b:call IdrisAddClause(0)<ENTER>w
+nnoremap <buffer> <silent> <LocalLeader>d 0:call search(":")<ENTER>b:call IdrisAddClause(0)<ENTER>w
+nnoremap <buffer> <silent> <LocalLeader>b 0:call IdrisAddClause(0)<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>m :call IdrisAddMissing()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>md 0:call search(":")<ENTER>b:call IdrisAddClause(1)<ENTER>w
+nnoremap <buffer> <silent> <LocalLeader>f :call IdrisRefine()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>o :call IdrisProofSearch(0)<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>s :call IdrisProofSearch(0)<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>g :call IdrisGenerateDef()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>p :call IdrisProofSearch(1)<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>l :call IdrisMakeLemma()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>e :call IdrisEval()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>w 0:call IdrisMakeWith()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>mc :call IdrisMakeCase()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>i 0:call IdrisResponseWin()<ENTER>
+nnoremap <buffer> <silent> <LocalLeader>h :call IdrisShowDoc()<ENTER>
+
+menu Idris.Reload <LocalLeader>r
+menu Idris.Show\ Type <LocalLeader>t
+menu Idris.Evaluate <LocalLeader>e
+menu Idris.-SEP0- :
+menu Idris.Add\ Clause <LocalLeader>a
+menu Idris.Generate\ Definition <LocalLeader>g
+menu Idris.Add\ with <LocalLeader>w
+menu Idris.Case\ Split <LocalLeader>c
+menu Idris.Add\ missing\ cases <LocalLeader>m
+menu Idris.Proof\ Search <LocalLeader>s
+menu Idris.Proof\ Search\ with\ hints <LocalLeader>p
+
+au BufHidden idris-response call IdrisHideResponseWin()
+au BufEnter idris-response call IdrisShowResponseWin()
+
+endif
diff --git a/heuristics.yaml b/heuristics.yaml
index 97999022..33c1c690 100644
--- a/heuristics.yaml
+++ b/heuristics.yaml
@@ -63,3 +63,33 @@ rules:
   - pattern: '^\s*#(?:(?:if|ifdef|define|pragma)\s+\w|\s*include\s+[<"]|template\s*<)'
     filetype: cpp
   - filetype: reason
+---
+extensions: [idr]
+rules:
+- lines: 5
+  rules:
+  - pattern: '^\s*--.*[Ii]dris ?1'
+    filetype: idris
+  - pattern: '^\s*--.*[Ii]dris ?2'
+    filetype: idris2
+- lines: 30
+  rules:
+  - pattern: '^pkgs =.*'
+    filetype: idris
+  - pattern: '^depends =.*'
+    filetype: idris2
+  - pattern: '^%language (TypeProviders|ElabReflection)'
+    filetype: idris
+  - pattern: '^%language PostfixProjections'
+    filetype: idris2
+  - pattern: '^%access .*'
+    filetype: idris
+  - override: 'g:filetype_idr'
+- filetype: idris2
+---
+extensions: [lidr]
+rules:
+- lines: 200
+  pattern: '^>\s*--.*[Ii]dris ?1'
+  filetype: lidris
+- filetype: lidris2
diff --git a/indent/idris2.vim b/indent/idris2.vim
new file mode 100644
index 00000000..83995423
--- /dev/null
+++ b/indent/idris2.vim
@@ -0,0 +1,148 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+" indentation for idris (idris-lang.org)
+"
+" Based on haskell indentation by motemen <motemen@gmail.com>
+"
+" author: raichoo (raichoo@googlemail.com)
+"
+" Modify g:idris_indent_if and g:idris_indent_case to
+" change indentation for `if'(default 3) and `case'(default 5).
+" Example (in .vimrc):
+" > let g:idris_indent_if = 2
+
+if exists('b:did_indent')
+  finish
+endif
+
+let b:did_indent = 1
+
+if !exists('g:idris_indent_if')
+  " if bool
+  " >>>then ...
+  " >>>else ...
+  let g:idris_indent_if = 3
+endif
+
+if !exists('g:idris_indent_case')
+  " case xs of
+  " >>>>>[]      => ...
+  " >>>>>(y::ys) => ...
+  let g:idris_indent_case = 5
+endif
+
+if !exists('g:idris_indent_let')
+  " let x : Nat = O in
+  " >>>>x
+  let g:idris_indent_let = 4
+endif
+
+if !exists('g:idris_indent_rewrite')
+  " rewrite prf in expr
+  " >>>>>>>>x
+  let g:idris_indent_rewrite = 8
+endif
+
+if !exists('g:idris_indent_where')
+  " where f : Nat -> Nat
+  " >>>>>>f x = x
+  let g:idris_indent_where = 6
+endif
+
+if !exists('g:idris_indent_do')
+  " do x <- a
+  " >>>y <- b
+  let g:idris_indent_do = 3
+endif
+
+setlocal indentexpr=GetIdrisIndent()
+setlocal indentkeys=!^F,o,O,}
+
+function! GetIdrisIndent()
+  let prevline = getline(v:lnum - 1)
+
+  if prevline =~ '\s\+(\s*.\+\s\+:\s\+.\+\s*)\s\+->\s*$'
+    return match(prevline, '(')
+  elseif prevline =~ '\s\+{\s*.\+\s\+:\s\+.\+\s*}\s\+->\s*$'
+    return match(prevline, '{')
+  endif
+
+  if prevline =~ '[!#$%&*+./<>?@\\^|~-]\s*$'
+    let s = match(prevline, '[:=]')
+    if s > 0
+      return s + 2
+    else
+      return match(prevline, '\S')
+    endif
+  endif
+
+  if prevline =~ '[{([][^})\]]\+$'
+    return match(prevline, '[{([]')
+  endif
+
+  if prevline =~ '\<let\>\s\+.\+\<in\>\s*$'
+    return match(prevline, '\<let\>') + g:idris_indent_let
+  endif
+
+  if prevline =~ '\<rewrite\>\s\+.\+\<in\>\s*$'
+    return match(prevline, '\<rewrite\>') + g:idris_indent_rewrite
+  endif
+
+  if prevline !~ '\<else\>'
+    let s = match(prevline, '\<if\>.*\&.*\zs\<then\>')
+    if s > 0
+      return s
+    endif
+
+    let s = match(prevline, '\<if\>')
+    if s > 0
+      return s + g:idris_indent_if
+    endif
+  endif
+
+  if prevline =~ '\(\<where\>\|\<do\>\|=\|[{([]\)\s*$'
+    return match(prevline, '\S') + &shiftwidth
+  endif
+
+  if prevline =~ '\<where\>\s\+\S\+.*$'
+    return match(prevline, '\<where\>') + g:idris_indent_where
+  endif
+
+  if prevline =~ '\<do\>\s\+\S\+.*$'
+    return match(prevline, '\<do\>') + g:idris_indent_do
+  endif
+
+  if prevline =~ '^\s*\<\(co\)\?data\>\s\+[^=]\+\s\+=\s\+\S\+.*$'
+    return match(prevline, '=')
+  endif
+
+  if prevline =~ '\<with\>\s\+([^)]*)\s*$'
+    return match(prevline, '\S') + &shiftwidth
+  endif
+
+  if prevline =~ '\<case\>\s\+.\+\<of\>\s*$'
+    return match(prevline, '\<case\>') + g:idris_indent_case
+  endif
+
+  if prevline =~ '^\s*\(\<namespace\>\|\<\(co\)\?data\>\)\s\+\S\+\s*$'
+    return match(prevline, '\(\<namespace\>\|\<\(co\)\?data\>\)') + &shiftwidth
+  endif
+
+  if prevline =~ '^\s*\(\<using\>\|\<parameters\>\)\s*([^(]*)\s*$'
+    return match(prevline, '\(\<using\>\|\<parameters\>\)') + &shiftwidth
+  endif
+
+  if prevline =~ '^\s*\<mutual\>\s*$'
+    return match(prevline, '\<mutual\>') + &shiftwidth
+  endif
+
+  let line = getline(v:lnum)
+
+  if (line =~ '^\s*}\s*' && prevline !~ '^\s*;')
+    return match(prevline, '\S') - &shiftwidth
+  endif
+
+  return match(prevline, '\S')
+endfunction
+
+endif
diff --git a/packages.yaml b/packages.yaml
index ca5de3a3..04dd4cd4 100644
--- a/packages.yaml
+++ b/packages.yaml
@@ -755,6 +755,19 @@ filetypes:
   extra_filenames:
   - idris-response
 ---
+name: idris2
+remote: edwinb/idris2-vim
+filetypes:
+- name: idris2
+  extensions:
+  - idr
+  - ipkg
+  filenames:
+  - idris-response
+- name: lidris2
+  extensions:
+  - lidr
+---
 name: ion
 remote: vmchale/ion-vim
 filetypes:
diff --git a/scripts/build b/scripts/build
index c7f4846f..79a1cfe7 100755
--- a/scripts/build
+++ b/scripts/build
@@ -77,6 +77,12 @@ def load_data()
         filetype["extensions"] ||= []
         filetype["filenames"] ||= []
         filetype["interpreters"] ||= []
+
+        filetype.keys.each do |key|
+          if key.start_with?("extra_")
+            raise "[#{filetype["name"]}]: #{key} is not allowed if linguist is not used"
+          end
+        end
       end
     end
   end
diff --git a/scripts/test_extensions.vim b/scripts/test_extensions.vim
index c45431d5..9211818d 100644
--- a/scripts/test_extensions.vim
+++ b/scripts/test_extensions.vim
@@ -190,6 +190,11 @@ call TestExtension('yaml.ansible', 'requirements.yaml', '')
 call TestExtension('ps1xml', 'foobar.ps1xml', '')
 call TestExtension('terraform', 'terraform.tf', '')
 
+call TestExtension('idris2', 'foobar.idr', '')
+call TestExtension('idris', 'foobar.idr', "pkgs : List String\npkgs = [\"NCurses\", \"Readline\"]")
+let g:filetype_idr = 'fizfuz'
+call TestExtension('fizfuz', 'fizfuz.idr', '')
+
 " .m extension
 call TestExtension('octave', 'matlab.m', '')
 call TestExtension('objc', 'objc.m', "\n\n  #import <Foundation/Foundation.h>")
@@ -215,3 +220,28 @@ call TestExtension('cpp', 'cpp.re', '#include "config.h"')
 call TestExtension('cpp', 'cpp2.re', '#ifdef HAVE_CONFIG_H')
 call TestExtension('cpp', 'cpp3.re', '#define YYCTYPE unsigned char')
 call TestExtension('reason', 'react.re', 'ReasonReact.Router.push("");')
+
+" Idris
+call TestExtension('idris', 'lowercase.idr', '--idris1')
+call TestExtension('idris', 'uppercase.idr', '--Idris1')
+call TestExtension('idris', 'start-space-l.idr', '-- idris1')
+call TestExtension('idris', 'start-space-u.idr', '-- Idris1')
+call TestExtension('idris', 'two-spaces-l.idr', '-- idris 1')
+call TestExtension('idris', 'two-spaces-u.idr', '-- Idris 1')
+"call TestExtension('idris', 'mypkg.ipkg', 'package mypkg\n\npkgs = pruviloj, lightyear')
+call TestExtension('idris', 'use-type-prov.idr', '%language TypeProviders')
+call TestExtension('idris', 'use-elab-refl.idr', '%language ElabReflection')
+call TestExtension('idris', 'access-modifier.idr', '%access export\n\npublic export\nMyTest : Type-> Type\n\nfact : Nat -> Nat')
+call TestExtension('idris2', 'lowercase.idr', '--idris2')
+call TestExtension('idris2', 'uppercase.idr', '--Idris2')
+call TestExtension('idris2', 'start-space-l.idr', '-- idris2')
+call TestExtension('idris2', 'start-space-u.idr', '-- Idris2')
+call TestExtension('idris2', 'two-spaces-l.idr', '-- idris 2')
+call TestExtension('idris2', 'two-spaces-u.idr', '-- Idris 2')
+call TestExtension('idris2', 'mypkg.ipkg', 'package mypkg\n\ndepends = effects')
+call TestExtension('idris2', 'use-post-proj.idr', '%language PostfixProjections')
+
+" Literate Idris
+call TestExtension('lidris', 'lidris-1.lidr', "Some test plaintext\n\n> --idris1\n> myfact : Nat -> Nat\n> myfact Z = 1\n> myfact (S k) = (S k) * myfact k\n\nMore plaintext")
+call TestExtension('lidris2', 'lidris-2.lidr', "Some test plaintext\n\n> --idris2\n> myfact : Nat -> Nat\n> myfact Z = 1\n> myfact (S k) = (S k) * myfact k\n\nMore plaintext")
+
diff --git a/scripts/test_filetypes.vim b/scripts/test_filetypes.vim
index d0bec4cc..0f870d5a 100644
--- a/scripts/test_filetypes.vim
+++ b/scripts/test_filetypes.vim
@@ -106,6 +106,8 @@ call TestFiletype('html')
 call TestFiletype('i3config')
 call TestFiletype('icalendar')
 call TestFiletype('idris')
+call TestFiletype('idris2')
+call TestFiletype('lidris2')
 call TestFiletype('ion')
 call TestFiletype('javascript')
 call TestFiletype('flow')
diff --git a/syntax/idris2.vim b/syntax/idris2.vim
new file mode 100644
index 00000000..6bd18c58
--- /dev/null
+++ b/syntax/idris2.vim
@@ -0,0 +1,85 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+" syntax highlighting for Idris 2 (idris-lang.org)
+"
+" Heavily modified version of the haskell syntax
+" highlighter to support Idris 2.
+"
+" author: raichoo (raichoo@googlemail.com)
+
+if exists("b:current_syntax")
+  finish
+endif
+
+syn match idrisTypeDecl "[a-zA-Z][a-zA-z0-9_']*\s\+:\s\+"
+  \ contains=idrisIdentifier,idrisOperators
+syn region idrisParens matchgroup=idrisDelimiter start="(" end=")" contains=TOP,idrisTypeDecl
+syn region idrisBrackets matchgroup=idrisDelimiter start="\[" end="]" contains=TOP,idrisTypeDecl
+syn region idrisBlock matchgroup=idrisDelimiter start="{" end="}" contains=TOP,idrisTypeDecl
+syn keyword idrisModule module namespace
+syn keyword idrisImport import
+syn keyword idrisStructure data record interface implementation
+syn keyword idrisWhere where
+syn keyword idrisVisibility public abstract private export
+syn keyword idrisBlock parameters mutual using
+syn keyword idrisTotality total partial covering
+syn keyword idrisAnnotation auto impossible default constructor
+syn keyword idrisStatement do case of rewrite with
+syn keyword idrisLet let in
+syn keyword idrisForall forall
+syn keyword idrisDataOpt noHints uniqueSearch search external noNewtype containedin=idrisBrackets
+syn match idrisSyntax "\(pattern \+\|term \+\)\?syntax"
+syn keyword idrisConditional if then else
+syn match idrisNumber "\<[0-9]\+\>\|\<0[xX][0-9a-fA-F]\+\>\|\<0[oO][0-7]\+\>"
+syn match idrisFloat "\<[0-9]\+\.[0-9]\+\([eE][-+]\=[0-9]\+\)\=\>"
+syn match idrisDelimiter  "[,;]"
+syn keyword idrisInfix prefix infix infixl infixr
+syn match idrisOperators "\([-!#$%&\*\+./<=>\?@\\^|~:]\|\<_\>\)"
+syn match idrisType "\<[A-Z][a-zA-Z0-9_']*\>"
+syn keyword idrisTodo TODO FIXME XXX HACK contained
+syn match idrisLineComment "---*\([^-!#$%&\*\+./<=>\?@\\^|~].*\)\?$" contains=idrisTodo,@Spell
+syn match idrisDocComment "|||\([^-!#$%&\*\+./<=>\?@\\^|~].*\)\?$" contains=idrisTodo,@Spell
+syn match idrisMetaVar "?[a-z][A-Za-z0-9_']*"
+syn match idrisPragma "%\(hide\|logging\|auto_lazy\|unbound_implicits\|undotted_record_projections\|amibguity_depth\|pair\|rewrite\|integerLit\|stringLit\|charLit\|name\|start\|allow_overloads\|language\|default\|transform\|hint\|global_hint\|defaulthint\|inline\|extern\|macro\|spec\|foreign\|runElab\|tcinline\)"
+syn match idrisChar "'[^'\\]'\|'\\.'\|'\\u[0-9a-fA-F]\{4}'"
+syn match idrisBacktick "`[A-Za-z][A-Za-z0-9_']*`"
+syn region idrisString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell
+syn region idrisBlockComment start="{-" end="-}" contains=idrisBlockComment,idrisTodo,@Spell
+syn match idrisIdentifier "[a-zA-Z][a-zA-z0-9_']*" contained
+
+highlight def link idrisDeprecated Error
+highlight def link idrisIdentifier Identifier
+highlight def link idrisImport Structure
+highlight def link idrisModule Structure
+highlight def link idrisStructure Structure
+highlight def link idrisStatement Statement
+highlight def link idrisForall Structure
+highlight def link idrisDataOpt Statement
+highlight def link idrisDSL Statement
+highlight def link idrisBlock Statement
+highlight def link idrisAnnotation Statement
+highlight def link idrisWhere Structure
+highlight def link idrisLet Structure
+highlight def link idrisTotality Statement
+highlight def link idrisSyntax Statement
+highlight def link idrisVisibility Statement
+highlight def link idrisConditional Conditional
+highlight def link idrisPragma Statement
+highlight def link idrisNumber Number
+highlight def link idrisFloat Float
+highlight def link idrisDelimiter Delimiter
+highlight def link idrisInfix PreProc
+highlight def link idrisOperators Operator
+highlight def link idrisType Include
+highlight def link idrisDocComment Comment
+highlight def link idrisLineComment Comment
+highlight def link idrisBlockComment Comment
+highlight def link idrisTodo Todo
+highlight def link idrisMetaVar Macro
+highlight def link idrisString String
+highlight def link idrisChar String
+highlight def link idrisBacktick Operator
+
+let b:current_syntax = "idris2"
+
+endif
diff --git a/syntax/lidris2.vim b/syntax/lidris2.vim
new file mode 100644
index 00000000..a4757205
--- /dev/null
+++ b/syntax/lidris2.vim
@@ -0,0 +1,26 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'idris2') == -1
+
+" Vim syntax file
+" Language:    Literate Idris 2
+" Maintainer:  Idris Hackers (https://github.com/edwinb/idris2-vim)
+" Last Change: 2020 May 19
+" Version:     0.1
+"
+" This is just a minimal adaption of the Literate Haskell syntax file.
+
+
+" Read Idris highlighting.
+if version < 600
+    syntax include @idrisTop <sfile>:p:h/idris2.vim
+else
+    syntax include @idrisTop syntax/idris2.vim
+endif
+
+" Recognize blocks of Bird tracks, highlight as Idris.
+syntax region lidrisBirdTrackBlock start="^>" end="\%(^[^>]\)\@=" contains=@idrisTop,lidrisBirdTrack
+syntax match  lidrisBirdTrack "^>" contained
+hi def link   lidrisBirdTrack Comment
+
+let b:current_syntax = "lidris2"
+
+endif
diff --git a/syntax/rust.vim b/syntax/rust.vim
index d1e9d8d4..2ad37ed8 100644
--- a/syntax/rust.vim
+++ b/syntax/rust.vim
@@ -67,10 +67,11 @@ syn match   rustExternCrateString /".*"\_s*as/ contained nextgroup=rustIdentifie
 syn keyword   rustObsoleteExternMod mod contained nextgroup=rustIdentifier skipwhite skipempty
 
 syn match     rustIdentifier  contains=rustIdentifierPrime "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
-syn match     rustFuncName    "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
+syn match     rustFuncName    "\%(r#\)\=\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
 
 syn region rustMacroRepeat matchgroup=rustMacroRepeatDelimiters start="$(" end="),\=[*+]" contains=TOP
 syn match rustMacroVariable "$\w\+"
+syn match rustRawIdent "\<r#\h\w*" contains=NONE
 
 " Reserved (but not yet used) keywords {{{2
 syn keyword   rustReservedKeyword become do priv typeof unsized abstract virtual final override