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Fix again bug with invalid ignore_files patterns 

The pattern cannot be tested in advance as it seems that Lua inspect
the pattern only partially, the part that is actually used.

We resort to use pcall to catch any error when using the pattern.
This commit is contained in:
Francesco Abbate 2022-01-27 08:42:54 +01:00
parent a6f32ca0d0
commit b02aae939c
1 changed files with 14 additions and 11 deletions
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17
data/core/init.lua
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@ -136,20 +136,23 @@ local function compile_ignore_files()
-- config.ignore_files could be a simple string...
if type(ipatterns) ~= "table" then ipatterns = {ipatterns} end
for i, pattern in ipairs(ipatterns) do
-- we ignore malformed pattern that raise an error
if pcall(string.match, "a", pattern) then
table.insert(compiled, {
compiled[i] = {
use_path = pattern:match("/[^/$]"), -- contains a slash but not at the end
-- An '/' or '/$' at the end means we want to match a directory.
match_dir = pattern:match(".+/%$?$"), -- to be used as a boolen value
pattern = pattern -- get the actual pattern
})
end
}
end
return compiled
end
local function safe_match(s, pattern)
local ok, match = pcall(string.match, s, pattern)
return ok and match
end
local function fileinfo_pass_filter(info, ignore_compiled)
if info.size >= config.file_size_limit * 1e6 then return false end
local basename = common.basename(info.filename)
@ -158,11 +161,11 @@ local function fileinfo_pass_filter(info, ignore_compiled)
for _, compiled in ipairs(ignore_compiled) do
local test = compiled.use_path and fullname or basename
if compiled.match_dir then
if info.type == "dir" and string.match(test .. "/", compiled.pattern) then
if info.type == "dir" and safe_match(test .. "/", compiled.pattern) then
return false
end
else
if string.match(test, compiled.pattern) then
if safe_match(test, compiled.pattern) then
return false
end
end