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feat(scope): allow filtering patterns when updating cache on autocmd events #84

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feat(scope): allow filtering patterns when updating cache on autocmd events #84

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ce16f9c
feat(scope): allow filtering patterns when updating cache on autocmd …
Subjective Sep 16, 2023
c7f0083
docs: add example of updating scope on autocmd event with pattern
Subjective Sep 16, 2023
49e4b9b
chore: remove debug print statement
Subjective Sep 17, 2023
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5 changes: 5 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -446,6 +446,11 @@ require("grapple.scope").resolver(function()
return vim.fn.getcwd()
end, { cache = "DirChanged" })

-- You can even filter for patterns!
require("grapple.scope").resolver(function()
return vim.fn.getcwd()
end, { cache = "User PluginEvent"})
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Instead of having to parse the cache it could be a table like so?

cache = {
    event = "User",
    pattern = "PluginEvent"


-- Create an scope resolver that asynchronously runs the "echo"
-- shell command and uses its output as the resolved scope
require("grapple.scope").resolver({
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37 changes: 35 additions & 2 deletions lua/grapple/scope.lua
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Expand Up @@ -69,7 +69,38 @@ local function is_async(scope_resolver)
end

---@private
---@param scope_resolver Grapple.ScopeResolver
---@param cache string | string[]
---@return string[], string[]
local function parse_events(cache)
local events = {}
local patterns = {}

local parse_event = function(event_string)
local words = {}
for word in event_string:gmatch("%S+") do
table.insert(words, word)
end

local event = table.remove(words, 1)
table.insert(events, event)
for _, pattern in ipairs(words) do
table.insert(patterns, pattern)
end
end

if type(cache) == "string" then
parse_event(cache)
elseif type(cache) == "table" then
for _, event_string in ipairs(cache) do
parse_event(event_string)
end
end

return events, patterns
end

---@private
---@param scope_resolver
---@return Grapple.ScopeResolver
local function update_watch(scope_resolver)
if scope_resolver.watch.type == watch_type.basic then
Expand All @@ -79,9 +110,11 @@ local function update_watch(scope_resolver)
goto fallthrough
end

local events, patterns = parse_events(scope_resolver.watch.events)
local group = vim.api.nvim_create_augroup("GrappleScope", { clear = false })
scope_resolver.watch.autocmd = vim.api.nvim_create_autocmd(scope_resolver.watch.events, {
scope_resolver.watch.autocmd = vim.api.nvim_create_autocmd(events, {
group = group,
pattern = patterns,
callback = function()
if is_async(scope_resolver) then
scope.update(scope_resolver)
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