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Merge pull request #2161 from guill/compile_database_perf

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Improve perf for compile dbs in large projects
This commit is contained in:
w0rp
2019-01-08 09:29:07 +00:00
committed by GitHub
parent 0fcd5e79a9 cb0a5c7a36
commit 1d7acad891
3 changed files with 83 additions and 17 deletions
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50
autoload/ale/c.vim
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@@ -157,15 +157,17 @@ if !exists('s:compile_commands_cache')
let s:compile_commands_cache = {}
endif
function! s:GetListFromCompileCommandsFile(compile_commands_file) abort
function! s:GetLookupFromCompileCommandsFile(compile_commands_file) abort
let l:empty = [{}, {}]
if empty(a:compile_commands_file)
return []
return l:empty
endif
let l:time = getftime(a:compile_commands_file)
if l:time < 0
return []
return l:empty
endif
let l:key = a:compile_commands_file . ':' . l:time
@@ -174,21 +176,36 @@ function! s:GetListFromCompileCommandsFile(compile_commands_file) abort
return s:compile_commands_cache[l:key]
endif
let l:data = []
silent! let l:data = json_decode(join(readfile(a:compile_commands_file), ''))
let l:raw_data = []
silent! let l:raw_data = json_decode(join(readfile(a:compile_commands_file), ''))
if !empty(l:data)
let s:compile_commands_cache[l:key] = l:data
let l:file_lookup = {}
let l:dir_lookup = {}
return l:data
for l:entry in l:raw_data
let l:basename = tolower(fnamemodify(l:entry.file, ':t'))
let l:file_lookup[l:basename] = get(l:file_lookup, l:basename, []) + [l:entry]
let l:dirbasename = tolower(fnamemodify(l:entry.directory, ':p:h:t'))
let l:dir_lookup[l:dirbasename] = get(l:dir_lookup, l:basename, []) + [l:entry]
endfor
if !empty(l:file_lookup) && !empty(l:dir_lookup)
let l:result = [l:file_lookup, l:dir_lookup]
let s:compile_commands_cache[l:key] = l:result
return l:result
endif
return []
return l:empty
endfunction
function! ale#c#ParseCompileCommandsFlags(buffer, dir, json_list) abort
function! ale#c#ParseCompileCommandsFlags(buffer, dir, file_lookup, dir_lookup) abort
" Search for an exact file match first.
for l:item in a:json_list
let l:basename = tolower(expand('#' . a:buffer . ':t'))
let l:file_list = get(a:file_lookup, l:basename, [])
for l:item in l:file_list
if bufnr(l:item.file) is a:buffer
return ale#c#ParseCFlags(a:dir, l:item.command)
endif
@@ -197,7 +214,10 @@ function! ale#c#ParseCompileCommandsFlags(buffer, dir, json_list) abort
" Look for any file in the same directory if we can't find an exact match.
let l:dir = ale#path#Simplify(expand('#' . a:buffer . ':p:h'))
for l:item in a:json_list
let l:dirbasename = tolower(expand('#' . a:buffer . ':p:h:t'))
let l:dir_list = get(a:dir_lookup, l:dirbasename, [])
for l:item in l:dir_list
if ale#path#Simplify(fnamemodify(l:item.file, ':h')) is? l:dir
return ale#c#ParseCFlags(a:dir, l:item.command)
endif
@@ -208,9 +228,11 @@ endfunction
function! ale#c#FlagsFromCompileCommands(buffer, compile_commands_file) abort
let l:dir = ale#path#Dirname(a:compile_commands_file)
let l:json_list = s:GetListFromCompileCommandsFile(a:compile_commands_file)
let l:lookups = s:GetLookupFromCompileCommandsFile(a:compile_commands_file)
let l:file_lookup = l:lookups[0]
let l:dir_lookup = l:lookups[1]
return ale#c#ParseCompileCommandsFlags(a:buffer, l:dir, l:json_list)
return ale#c#ParseCompileCommandsFlags(a:buffer, l:dir, l:file_lookup, l:dir_lookup)
endfunction
function! ale#c#GetCFlags(buffer, output) abort