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Fix #315 Implement the read_buffer option

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This commit is contained in:
w0rp 2017-02-09 23:32:57 +00:00
parent 9f8c76b5b9
commit 5de445c041
6 changed files with 262 additions and 29 deletions
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64
autoload/ale/engine.vim
View File

@ -214,13 +214,13 @@ function! s:FixLocList(buffer, loclist) abort
endfor
endfunction
function! s:RunJob(command, generic_job_options) abort
let l:buffer = a:generic_job_options.buffer
let l:linter = a:generic_job_options.linter
let l:output_stream = a:generic_job_options.output_stream
let l:next_chain_index = a:generic_job_options.next_chain_index
let l:read_buffer = a:generic_job_options.read_buffer
let l:command = a:command
function! s:RunJob(options) abort
let l:command = a:options.command
let l:buffer = a:options.buffer
let l:linter = a:options.linter
let l:output_stream = a:options.output_stream
let l:next_chain_index = a:options.next_chain_index
let l:read_buffer = a:options.read_buffer
if l:command =~# '%s'
" If there is a '%s' in the command string, replace it with the name
@ -321,8 +321,11 @@ function! s:RunJob(command, generic_job_options) abort
endif
endfunction
function! s:InvokeChain(buffer, linter, chain_index, input) abort
" Determine which commands to run for a link in a command chain, or
" just a regular command.
function! ale#engine#ProcessChain(buffer, linter, chain_index, input) abort
let l:output_stream = get(a:linter, 'output_stream', 'stdout')
let l:read_buffer = a:linter.read_buffer
let l:chain_index = a:chain_index
let l:input = a:input
@ -332,11 +335,6 @@ function! s:InvokeChain(buffer, linter, chain_index, input) abort
" so that many programs can be run in a sequence.
let l:chain_item = a:linter.command_chain[l:chain_index]
" The chain item can override the output_stream option.
if has_key(l:chain_item, 'output_stream')
let l:output_stream = l:chain_item.output_stream
endif
if l:chain_index == 0
" The first callback in the chain takes only a buffer number.
let l:command = ale#util#GetFunction(l:chain_item.callback)(
@ -352,6 +350,21 @@ function! s:InvokeChain(buffer, linter, chain_index, input) abort
if !empty(l:command)
" We hit a command to run, so we'll execute that
" The chain item can override the output_stream option.
if has_key(l:chain_item, 'output_stream')
let l:output_stream = l:chain_item.output_stream
endif
" The chain item can override the read_buffer option.
if has_key(l:chain_item, 'read_buffer')
let l:read_buffer = l:chain_item.read_buffer
elseif l:chain_index != len(a:linter.command_chain) - 1
" Don't read the buffer for commands besides the last one
" in the chain by default.
let l:read_buffer = 0
endif
break
endif
@ -361,11 +374,6 @@ function! s:InvokeChain(buffer, linter, chain_index, input) abort
let l:input = []
let l:chain_index += 1
endwhile
if empty(l:command)
" Don't run any jobs if the last command is an empty string.
return
endif
elseif has_key(a:linter, 'command_callback')
" If there is a callback for generating a command, call that instead.
let l:command = ale#util#GetFunction(a:linter.command_callback)(a:buffer)
@ -373,15 +381,27 @@ function! s:InvokeChain(buffer, linter, chain_index, input) abort
let l:command = a:linter.command
endif
let l:is_last_job = l:chain_index >= len(get(a:linter, 'command_chain', [])) - 1
if empty(l:command)
" Don't run any jobs if the command is an empty string.
return {}
endif
call s:RunJob(l:command, {
return {
\ 'command': l:command,
\ 'buffer': a:buffer,
\ 'linter': a:linter,
\ 'output_stream': l:output_stream,
\ 'next_chain_index': l:chain_index + 1,
\ 'read_buffer': l:is_last_job,
\})
\ 'read_buffer': l:read_buffer,
\}
endfunction
function! s:InvokeChain(buffer, linter, chain_index, input) abort
let l:options = ale#engine#ProcessChain(a:buffer, a:linter, a:chain_index, a:input)
if !empty(l:options)
call s:RunJob(l:options)
endif
endfunction
function! ale#engine#Invoke(buffer, linter) abort

15
autoload/ale/linter.vim
View File

@ -33,6 +33,10 @@ function! s:IsCallback(value) abort
return type(a:value) == type('') || type(a:value) == type(function('type'))
endfunction
function! s:IsBoolean(value) abort
return type(a:value) == type(0) && (a:value == 0 || a:value == 1)
endfunction
function! ale#linter#PreProcess(linter) abort
if type(a:linter) != type({})
throw 'The linter object must be a Dictionary'
@ -95,6 +99,10 @@ function! ale#linter#PreProcess(linter) abort
endif
endif
if has_key(l:link, 'read_buffer') && !s:IsBoolean(l:link.read_buffer)
throw l:err_prefix . 'value for `read_buffer` must be `0` or `1`'
endif
let l:link_index += 1
endfor
elseif has_key(a:linter, 'command_callback')
@ -130,6 +138,13 @@ function! ale#linter#PreProcess(linter) abort
throw "`output_stream` must be 'stdout', 'stderr', or 'both'"
endif
" An option indicating that the buffer should be read.
let l:obj.read_buffer = get(a:linter, 'read_buffer', 1)
if !s:IsBoolean(l:obj.read_buffer)
throw '`read_buffer` must be `0` or `1`'
endif
return l:obj
endfunction

18
doc/ale.txt
View File

@ -1082,10 +1082,14 @@ ale#linter#Define(filetype, linter) *ale#linter#Define()*
See the `output_stream` description for more
information.
The Vim buffer being checked for linter will only
be sent to the final command in the chain. Previous
commands in the chain will receive no input from
stdin.
Commands in the chain all behave as if `read_buffer`
is set to `0` by default, except for the last command
in the chain, which uses the value set for
`read_buffer` in the root |Dictionary|. Each command
in the chain can also provide a `read_buffer` key
to override these values.
See the `read_buffer` description for more
information.
`output_stream` A |String| for the output stream the lines of output
should be read from for the command which is run. The
@ -1096,6 +1100,12 @@ ale#linter#Define(filetype, linter) *ale#linter#Define()*
instead of stdout. The option `'both'` will read
from both stder and stdout at the same time.
`read_buffer` A |Number| (`0` or `1`) indicating whether a command
should read the Vim buffer as input via stdin. This
option is set to `1` by default, and can be disabled
if a command manually reads from a temporary file
instead, etc.
Only one of `command`, `command_callback`, or `command_chain` should be
specified. `command_callback` is generally recommended when a command string
needs to be generated dynamically, or any global options are used.

139
test/test_engine_invocation.vader Normal file
View File

@ -0,0 +1,139 @@
Before:
function! CollectResults(buffer, output)
return []
endfunction
function! FirstChainFunction(buffer)
return 'first'
endfunction
function! SecondChainFunction(buffer, output)
" We'll skip this command
return ''
endfunction
function! ThirdChainFunction(buffer, output)
return 'third'
endfunction
function! FourthChainFunction(buffer, output)
return 'fourth'
endfunction
let g:linter = {
\ 'name': 'testlinter',
\ 'callback': 'CollectResults',
\ 'executable': 'echo',
\ 'command_chain': [
\ {'callback': 'FirstChainFunction'},
\ {'callback': 'SecondChainFunction'},
\ {'callback': 'ThirdChainFunction'},
\ {'callback': 'FourthChainFunction'},
\ ],
\ 'read_buffer': 1,
\}
function! ProcessIndex(chain_index)
return ale#engine#ProcessChain(347, g:linter, a:chain_index, [])
endfunction
After:
delfunction CollectResults
delfunction FirstChainFunction
delfunction SecondChainFunction
delfunction ThirdChainFunction
delfunction ProcessIndex
unlet! g:linter
unlet! g:result
Execute(Engine invocation should return the command for the first item correctly):
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
AssertEqual 1, g:result.next_chain_index
Execute(Engine invocation should return the command for the second item correctly):
let g:result = ProcessIndex(1)
AssertEqual 'third', g:result.command
AssertEqual 3, g:result.next_chain_index
Execute(Engine invocation should return the command for the fourth item correctly):
let g:result = ProcessIndex(3)
AssertEqual 'fourth', g:result.command
AssertEqual 4, g:result.next_chain_index
Execute(Engine invocation should return the command for a single callback correctly):
unlet g:linter.command_chain
let g:linter.command_callback = 'FirstChainFunction'
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
Execute(Engine invocation should return the command for a command string correctly):
unlet g:linter.command_chain
let g:linter.command = 'foo bar'
let g:result = ProcessIndex(0)
AssertEqual 'foo bar', g:result.command
Execute(Engine invocation should process read_buffer correctly for simple commands):
unlet g:linter.command_chain
let g:linter.command = 'foo bar'
let g:linter.read_buffer = 0
let g:result = ProcessIndex(0)
AssertEqual 'foo bar', g:result.command
AssertEqual 0, g:result.read_buffer
let g:linter.command_callback = 'FirstChainFunction'
unlet g:linter.command
let g:result = ProcessIndex(0)
AssertEqual 'first', g:result.command
AssertEqual 0, g:result.read_buffer
Execute(Engine invocation should allow read_buffer to be enabled for a command in the middle of a chain):
let g:linter.command_chain[2].read_buffer = 1
let g:result = ProcessIndex(2)
AssertEqual g:result.command, 'third'
AssertEqual g:result.read_buffer, 1
Execute(Engine invocation should allow read_buffer to be disabled for the end of a chain):
let g:linter.command_chain[3].read_buffer = 0
let g:result = ProcessIndex(3)
AssertEqual g:result.command, 'fourth'
AssertEqual g:result.read_buffer, 0
Execute(Engine invocation should not use read_buffer from earlier items in a chain):
let g:linter.command_chain[1].read_buffer = 1
let g:result = ProcessIndex(1)
AssertEqual g:result.command, 'third'
AssertEqual g:result.read_buffer, 0
Execute(Engine invocation should allow the output_stream setting to be changed in the middle of a chain):
let g:linter.command_chain[2].output_stream = 'both'
let g:result = ProcessIndex(2)
AssertEqual g:result.command, 'third'
AssertEqual g:result.output_stream, 'both'
Execute(Engine invocation should not use output_stream from earlier items in a chain):
let g:linter.command_chain[1].output_stream = 'both'
let g:result = ProcessIndex(1)
AssertEqual g:result.command, 'third'
AssertEqual g:result.output_stream, 'stdout'

49
test/test_linter_defintion_processing.vader
View File

@ -234,3 +234,52 @@ Execute(PreProcess should complain when conflicting command options are used):
AssertThrows call ale#linter#PreProcess(g:linter)
AssertEqual 'Only one of `command`, `command_callback`, or `command_chain` should be set', g:vader_exception
Execute(PreProcess should process the read_buffer option correctly):
let g:linter = {
\ 'name': 'x',
\ 'callback': 'x',
\ 'executable': 'x',
\ 'command_chain': [{'callback': 'foo'}, {'callback': 'bar'}],
\ 'read_buffer': '0',
\}
AssertThrows call ale#linter#PreProcess(g:linter)
AssertEqual '`read_buffer` must be `0` or `1`', g:vader_exception
let g:linter.read_buffer = 0
call ale#linter#PreProcess(g:linter)
let g:linter.read_buffer = 1
call ale#linter#PreProcess(g:linter)
unlet g:linter.read_buffer
let g:linter.command_chain[0].read_buffer = '0'
AssertThrows call ale#linter#PreProcess(g:linter)
AssertEqual 'The `command_chain` item 0 value for `read_buffer` must be `0` or `1`', g:vader_exception
let g:linter.command_chain[0].read_buffer = 0
call ale#linter#PreProcess(g:linter)
let g:linter.command_chain[1].read_buffer = '0'
AssertThrows call ale#linter#PreProcess(g:linter)
AssertEqual 'The `command_chain` item 1 value for `read_buffer` must be `0` or `1`', g:vader_exception
let g:linter.command_chain[1].read_buffer = 1
call ale#linter#PreProcess(g:linter)
Execute(PreProcess should set a default value for read_buffer):
let g:linter = {
\ 'name': 'x',
\ 'callback': 'x',
\ 'executable': 'x',
\ 'command': 'x',
\}
AssertEqual ale#linter#PreProcess(g:linter).read_buffer, 1

6
test/test_linter_retrieval.vader
View File

@ -1,6 +1,6 @@
Before:
let g:testlinter1 = {'name': 'testlinter1', 'executable': 'testlinter1', 'command': 'testlinter1', 'callback': 'testCB1', 'output_stream': 'stdout'}
let g:testlinter2 = {'name': 'testlinter2', 'executable': 'testlinter2', 'command': 'testlinter2', 'callback': 'testCB2', 'output_stream': 'stdout'}
let g:testlinter1 = {'name': 'testlinter1', 'executable': 'testlinter1', 'command': 'testlinter1', 'callback': 'testCB1', 'output_stream': 'stdout', 'read_buffer': 1}
let g:testlinter2 = {'name': 'testlinter2', 'executable': 'testlinter2', 'command': 'testlinter2', 'callback': 'testCB2', 'output_stream': 'stdout', 'read_buffer': 0}
call ale#linter#Reset()
let g:ale_linters = {}
@ -40,4 +40,4 @@ Then (Linters for dot-seperated filetypes should be properly handled):
AssertEqual [g:testlinter1, g:testlinter2], ale#linter#Get('testft1.testft2')
Execute (Try to load a linter from disk):
AssertEqual [{'name': 'testlinter', 'output_stream': 'stdout', 'executable': 'testlinter', 'command': 'testlinter', 'callback': 'testCB'}], ale#linter#Get('testft')
AssertEqual [{'name': 'testlinter', 'output_stream': 'stdout', 'executable': 'testlinter', 'command': 'testlinter', 'callback': 'testCB', 'read_buffer': 1}], ale#linter#Get('testft')