4 files changed, 339 insertions, 0 deletions
diff --git a/configs/nvim/config-root/lua/crupest/utils/find.lua b/configs/nvim/config-root/lua/crupest/utils/find.lua
new file mode 100644
index 0000000..83968d2
--- /dev/null
+++ b/configs/nvim/config-root/lua/crupest/utils/find.lua
@@ -0,0 +1,152 @@
+local fs = require("crupest.utils.fs");
+local is_win = vim.fn.has("win32") ~= 0
+
+local win_exe_exts = { "exe", "CMD", "cmd", "ps1" }
+
+local function get_exe(path)
+    if is_win then
+        for _, ext in ipairs(win_exe_exts) do
+            if string.find(path, "%." .. ext .. "$") and fs.isfile(path) then
+                return path
+            end
+        end
+        for _, ext in ipairs(win_exe_exts) do
+            local p = path .. "." .. ext
+            if fs.isfile(p) then return p end
+        end
+        return nil
+    end
+
+    if vim.fn.executable(path) ~= 0 then
+        return path
+    end
+
+    return nil
+end
+
+local function find_global_exe(name)
+    if vim.fn.executable(name) ~= 0 then
+        return name
+    end
+
+    return nil
+end
+
+local function first_exe(paths)
+    for _, v in ipairs(paths) do
+        local exe = get_exe(v)
+        if exe then return exe end
+    end
+
+    return nil
+end
+
+local function find_file_or_directory(path, name)
+    return fs.walk_up(path, function(current_path)
+        local p = current_path .. "/" .. name
+        if fs.isdir(p) then
+            return p, "directory"
+        elseif fs.isfile(p) then
+            return p, "file"
+        end
+        return nil
+    end)
+end
+
+local function find_file(path, name)
+    return fs.walk_up(path, function(current_path)
+        local p = current_path .. "/" .. name
+        if fs.isfile(p) then
+            return p
+        end
+        return nil
+    end)
+end
+
+local function find_files_or_directories(path, names)
+    for _, name in ipairs(names) do
+        local p, type = find_file_or_directory(path, name)
+        if p then return p, type end
+    end
+    return nil
+end
+
+local function find_files(path, names)
+    for _, name in ipairs(names) do
+        local p = find_file(path, name)
+        if p then return p end
+    end
+    return nil
+end
+
+local function find_node_modules(path)
+    return fs.walk_up(path, function(current_path)
+        local node_modules_path = current_path .. "/node_modules"
+        if fs.isdir(node_modules_path) then
+            return node_modules_path
+        end
+        return nil
+    end)
+end
+
+local function find_npm_exe(path, exe)
+    local node_modules_path = find_node_modules(path)
+    if not node_modules_path then return nil end
+    local try_exe_path = node_modules_path .. "/.bin/" .. exe
+    local exe_path = get_exe(try_exe_path)
+    if exe_path then return exe_path end
+    return nil
+end
+
+local function find_exe(path, exe, places)
+    for _, place in ipairs(places) do
+        if place == "npm" then
+            local r = find_npm_exe(path, exe)
+            if r then return r end
+        end
+        if place == "global" then
+            local r = find_global_exe(exe)
+            if r then return r end
+        end
+    end
+    return nil
+end
+
+local function find_exe_for_buf(buf, opts)
+    local r = {}
+    r.name = opts.name
+    r.file = vim.api.nvim_buf_get_name(buf)
+    r.filetype = vim.api.nvim_buf_get_option(buf, "filetype")
+    r.exe_name = opts.name
+    r.exe_places = opts.exe_places or { "global" }
+
+    if opts.config_files then
+        r.config_file = find_files(r.file, opts.config_files)
+        if r.config_file == nil then return nil end
+    end
+
+    if opts.filetypes then
+        if not require("crupest.table").includes(opts.filetypes, r.filetype) then
+            return nil
+        end
+    end
+
+    r.exe_path = find_exe(r.file, r.exe_name, r.exe_places)
+    if r.exe_path == nil then return nil end
+
+    return r
+end
+
+return {
+    get_exe = get_exe,
+    find_global_exe = find_global_exe,
+    first_exe = first_exe,
+    find_file_or_directory = find_file_or_directory,
+    find_files_or_directories = find_files_or_directories,
+    find_file = find_file,
+    find_files = find_files,
+    find_node_modules = find_node_modules,
+    find_npm_exe = find_npm_exe,
+    find_exe = find_exe,
+    find_exe_for_buf = find_exe_for_buf,
+}
diff --git a/configs/nvim/config-root/lua/crupest/utils/fs.lua b/configs/nvim/config-root/lua/crupest/utils/fs.lua
new file mode 100644
index 0000000..d34c2f6
--- /dev/null
+++ b/configs/nvim/config-root/lua/crupest/utils/fs.lua
@@ -0,0 +1,101 @@
+local function clean_path(path)
+    if path == "/" then return path end
+    path = string.gsub(path, "[/\\]+", "/")
+    if string.sub(path, string.len(path)) == '/' then
+        path = string.sub(path, 1, string.len(path) - 1)
+    end
+    return path
+end
+
+local function full_path(name)
+    local path = vim.fn.fnamemodify(name, ":p")
+    return clean_path(path)
+end
+
+local function escape_space(str)
+    return (string.gsub(str, " ", "\\ "))
+end
+
+local function path_get_dir(path)
+    return full_path(vim.fn.fnamemodify(clean_path(path), ":h"))
+end
+
+local function walk_up(path, func)
+    local current_path = full_path(path)
+    while true do
+        local result = func(current_path)
+        if result ~= nil then
+            return result
+        end
+        local new_path = path_get_dir(current_path)
+        if new_path == current_path then
+            break
+        end
+        current_path = new_path
+    end
+    return nil
+end
+
+local function exist(path)
+    return vim.uv.fs_stat(path)
+end
+
+local function isfile(path)
+    local s = vim.uv.fs_stat(path)
+    if not s then return false end
+    return s.type == "file"
+end
+
+local function isdir(path)
+    local s = vim.uv.fs_stat(path)
+    if not s then return false end
+    return s.type == "directory"
+end
+
+local function mkdir(dir)
+    local parents = {}
+
+    walk_up(dir, function(p)
+        table.insert(parents, 1, p)
+    end)
+
+    for _, v in ipairs(parents) do
+        if exist(v) and not isdir(v) then
+            vim.notify(v .. " is not a dir. Can't make dir " .. dir, vim.log.levels.ERROR)
+            return
+        end
+        if not exist(v) then
+            vim.notify("Creating dir " .. v)
+            assert(vim.uv.fs_mkdir(v, 504)) -- mode = 0770
+        end
+    end
+end
+
+local function copy(old, new)
+    mkdir(path_get_dir(new))
+    assert(vim.uv.fs_copyfile(old, new))
+end
+
+local function remove(path)
+    assert(vim.uv.fs_unlink(path))
+end
+
+local function move(old, new)
+    mkdir(path_get_dir(new))
+    assert(vim.uv.fs_rename(old, new))
+end
+
+return {
+    clean_path = clean_path,
+    full_path = full_path,
+    escape_space = escape_space,
+    path_get_dir = path_get_dir,
+    walk_up = walk_up,
+    exist = exist,
+    isfile = isfile,
+    isdir = isdir,
+    mkdir = mkdir,
+    copy = copy,
+    remove = remove,
+    move = move
+}
diff --git a/configs/nvim/config-root/lua/crupest/utils/nvim.lua b/configs/nvim/config-root/lua/crupest/utils/nvim.lua
new file mode 100644
index 0000000..ac732fd
--- /dev/null
+++ b/configs/nvim/config-root/lua/crupest/utils/nvim.lua
@@ -0,0 +1,44 @@
+local function list_listed_bufs()
+    local bufs = vim.api.nvim_list_bufs()
+    local result = {}
+    for _, v in ipairs(bufs) do
+        if vim.fn.buflisted(v) ~= 0 then
+            table.insert(result, v)
+        end
+    end
+    return result
+end
+
+-- list the windows that are currently editing the given buffer
+local function list_wins_editing_buf(buf)
+    local wins = vim.api.nvim_list_wins()
+    local result = {}
+    for _, win in ipairs(wins) do
+        if vim.api.nvim_win_get_buf(win) == buf then
+            table.insert(result, win)
+        end
+    end
+    return result
+end
+
+local function buf_is_normal(buf)
+    return vim.fn.bufexists(buf) ~= 0 and vim.fn.buflisted(buf) ~= 0
+end
+
+
+local function close_float()
+    local wins = vim.api.nvim_list_wins()
+    for _, v in ipairs(wins) do
+        if vim.api.nvim_win_get_config(v).relative ~= '' then
+            vim.api.nvim_win_close(v, false)
+        end
+    end
+end
+
+return {
+    list_listed_bufs = list_listed_bufs,
+    buf_is_normal = buf_is_normal,
+    list_wins_editing_buf = list_wins_editing_buf,
+    close_float = close_float,
+}
+
diff --git a/configs/nvim/config-root/lua/crupest/utils/table.lua b/configs/nvim/config-root/lua/crupest/utils/table.lua
new file mode 100644
index 0000000..22419b0
--- /dev/null
+++ b/configs/nvim/config-root/lua/crupest/utils/table.lua
@@ -0,0 +1,42 @@
+local function remove_element(tbl, element)
+    local index = nil
+    for i, v in ipairs(tbl) do
+        if element == v then
+            index = i
+            break
+        end
+    end
+    if index then
+        table.remove(tbl, index)
+    end
+    return tbl
+end
+
+local function element_at(tbl, element)
+    local at = nil
+    for i, v in ipairs(tbl) do
+        if element == v then
+            at = i
+            break
+        end
+    end
+    return at
+end
+
+local function includes(tbl, element)
+    for _, v in ipairs(tbl) do
+        if v == element then return true end
+    end
+    return false
+end
+
+local function string_start_with(str, prefix)
+    return string.find(str, prefix, 0, true) == 1
+end
+
+return {
+    remove_element = remove_element,
+    element_at = element_at,
+    includes = includes,
+    string_start_with = string_start_with,
+}