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authorJacob Segal <jacob.e.segal@gmail.com>2018-12-16 20:47:35 -0800
committerJacob Segal <jacob.e.segal@gmail.com>2019-01-06 00:41:57 -0800
commitcb0a5c7a36122a053c6c86cab145aa4c0336f5ba (patch)
treefc61bb533d5f629e611fad30bb26d8806f2333cc /test/test_c_flag_parsing.vader
parent5bbe77101db18968fde65210956e54750d7ff4f5 (diff)
downloadale-cb0a5c7a36122a053c6c86cab145aa4c0336f5ba.zip
Improve perf for compile dbs in large projects
When using a compilation database (compile_commands.json) in very large projects, significant delays would occur when changing files -- particularly those that happened to be far down the db. Rather than iterating over the whole list every time, we now build up a lookup table based on the tail of the filename (and tail of the directory for widening searches) and iterate over the much smaller list of compile commands for files with the given name. Test metrics (from compile_database_perf/test.sh) show a 90% performance improvement -- from 25 seconds to 2.5 seconds per run.
Diffstat (limited to 'test/test_c_flag_parsing.vader')
-rw-r--r--test/test_c_flag_parsing.vader21
1 files changed, 18 insertions, 3 deletions
diff --git a/test/test_c_flag_parsing.vader b/test/test_c_flag_parsing.vader
index d3cb2b51..4c23c711 100644
--- a/test/test_c_flag_parsing.vader
+++ b/test/test_c_flag_parsing.vader
@@ -161,14 +161,14 @@ Execute(FlagsFromCompileCommands should tolerate empty values):
AssertEqual '', ale#c#FlagsFromCompileCommands(bufnr(''), '')
Execute(ParseCompileCommandsFlags should tolerate empty values):
- AssertEqual '', ale#c#ParseCompileCommandsFlags(bufnr(''), '', [])
+ AssertEqual '', ale#c#ParseCompileCommandsFlags(bufnr(''), '', {}, {})
Execute(ParseCompileCommandsFlags should parse some basic flags):
noautocmd execute 'file! ' . fnameescape(ale#path#Simplify('/foo/bar/xmms2-mpris/src/xmms2-mpris.c'))
AssertEqual
\ '-I' . ale#path#Simplify('/usr/include/xmms2'),
- \ ale#c#ParseCompileCommandsFlags(bufnr(''), ale#path#Simplify('/foo/bar/xmms2-mpris'), [
+ \ ale#c#ParseCompileCommandsFlags(bufnr(''), ale#path#Simplify('/foo/bar/xmms2-mpris'), { "xmms2-mpris.c": [
\ {
\ 'directory': ale#path#Simplify('/foo/bar/xmms2-mpris'),
\ 'command': '/usr/bin/cc -I' . ale#path#Simplify('/usr/include/xmms2')
@@ -176,7 +176,22 @@ Execute(ParseCompileCommandsFlags should parse some basic flags):
\ . ' -c ' . ale#path#Simplify('/foo/bar/xmms2-mpris/src/xmms2-mpris.c'),
\ 'file': ale#path#Simplify('/foo/bar/xmms2-mpris/src/xmms2-mpris.c'),
\ },
- \ ])
+ \ ] }, {})
+
+Execute(ParseCompileCommandsFlags should fall back to files in the same directory):
+ noautocmd execute 'file! ' . fnameescape(ale#path#Simplify('/foo/bar/xmms2-mpris/src/xmms2-mpris.c'))
+
+ AssertEqual
+ \ '-I' . ale#path#Simplify('/usr/include/xmms2'),
+ \ ale#c#ParseCompileCommandsFlags(bufnr(''), ale#path#Simplify('/foo/bar/xmms2-mpris'), {}, { "src": [
+ \ {
+ \ 'directory': ale#path#Simplify('/foo/bar/xmms2-mpris'),
+ \ 'command': '/usr/bin/cc -I' . ale#path#Simplify('/usr/include/xmms2')
+ \ . ' -o CMakeFiles/xmms2-mpris.dir/src/xmms2-mpris.c.o'
+ \ . ' -c ' . ale#path#Simplify('/foo/bar/xmms2-mpris/src/xmms2-mpris.c'),
+ \ 'file': ale#path#Simplify((has('win32') ? 'C:' : '') . '/foo/bar/xmms2-mpris/src/xmms2-other.c'),
+ \ },
+ \ ] })
Execute(ParseCFlags should not merge flags):
AssertEqual