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Copy pathexecutable_manager.lua
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251 lines (201 loc) · 7.53 KB
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--[[
This file is part of darktable,
copyright (c) 2018 Bill Ferguson
darktable is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
darktable is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with darktable. If not, see <http://www.gnu.org/licenses/>.
]]
--[[
executable_manager.lua - a tool for managing external executables used by darktable lua scripts
executable_manager is a tool for managing the executable preferences stored in the darktablerc file.
On startup the darktablerc file is scanned and a widget is built for each executable path. The user
can select the executable from a drop down list and then modify the settings as desired.
Any changes made using executable_manager won't be saved in the darktablerc file until darktable exits, but
the preference is updated when the change is made so scripts will pick up the changes without restarting
darktable.
]]
local dt = require "darktable"
local du = require "lib/dtutils"
local df = require "lib/dtutils.file"
du.check_min_api_version("7.0.0", "executable_manager")
-- return data structure for script_manager
local script_data = {}
script_data.destroy = nil -- function to destory the script
script_data.destroy_method = nil -- set to hide for libs since we can't destroy them commpletely yet
script_data.restart = nil -- how to restart the (lib) script after it's been hidden - i.e. make it visible again
script_data.show = nil -- only required for libs since the destroy_method only hides them
local PS = dt.configuration.running_os == "windows" and "\\" or "/"
local gettext = dt.gettext.gettext
local exec_man = {} -- our own namespace
exec_man.module_installed = false
exec_man.event_registered = false
-- - - - - - - - - - - - - - - - - - - - - - - - - - - -
-- F U N C T I O N S
-- - - - - - - - - - - - - - - - - - - - - - - - - - - -
gettext.bindtextdomain("executable_manager", dt.configuration.config_dir .."/lua/locale/")
local function _(msg)
return gettext(msg)
end
local function grep(file, pattern)
local result = {}
if dt.configuration.running_os == "windows" then
-- use find to get the matches
local command = "\\windows\\system32\\find.exe " .. "\"" .. pattern .. "\"" .. " " .. file
local f = io.popen(command)
local output = f:read("all")
f:close()
-- strip out the first line
result = du.split(output, "\n")
table.remove(result, 1)
else
-- use grep and just return the answers
local command = "grep " .. pattern .. " " .. file
local f = io.popen(command)
local output = f:read("all")
f:close()
result = du.split(output, "\n")
end
return result
end
local function update_combobox_choices(combobox, choice_table, selected)
local items = #combobox
local choices = #choice_table
for i, name in ipairs(choice_table) do
combobox[i] = name
end
if choices < items then
for j = items, choices + 1, -1 do
combobox[j] = nil
end
end
combobox.value = selected
end
local function install_module()
if not exec_man.module_installed then
dt.register_lib(
"executable_manager", -- Module name
"executable manager", -- Visible name
true, -- expandable
false, -- resetable
{[dt.gui.views.lighttable] = {"DT_UI_CONTAINER_PANEL_LEFT_BOTTOM", 600}}, -- containers
dt.new_widget("box") -- widget
{
orientation = "vertical",
exec_man.selector,
exec_man.stack,
},
nil,-- view_enter
nil -- view_leave
)
exec_man.module_installed = true
end
end
local function destroy()
dt.gui.libs["executable_manager"].visible = false
end
local function restart()
dt.gui.libs["executable_manager"].visible = true
end
-- - - - - - - - - - - - - - - - - - - - - - - - - - - -
-- M A I N P R O G R A M
-- - - - - - - - - - - - - - - - - - - - - - - - - - - -
local DARKTABLERC = dt.configuration.config_dir .. PS .. "darktablerc"
-- grep the executable_paths statements out of the darktablerc file
local matches = grep(DARKTABLERC, "executable_paths")
-- check if we have something to manage and exit if not
if #matches == 0 then
dt.print(_("no executable paths found, exiting..."))
return
end
-- build a table of the path preferences
local exec_table = {}
for _,pref in ipairs(matches) do
local parts = du.split(pref, "=")
local tmp = du.split(parts[1], "/") -- preferences are stored with forward slashes
table.insert(exec_table, tmp[#tmp])
end
local executable_path_widgets = {}
local executable_path_values = {}
local placeholder_text = dt.configuration.running_os == windows and _("select an executable") or _("search path for executable")
for i,exec in ipairs(exec_table) do
executable_path_values[exec] = dt.new_widget("entry"){
text = df.get_executable_path_preference(exec),
placeholder = placeholder_text,
editable = false
}
executable_path_widgets[exec] = dt.new_widget("file_chooser_button"){
title = _(string.format("select %s executable", exec)),
value = df.get_executable_path_preference(exec),
is_directory = false,
changed_callback = function(self)
if df.check_if_bin_exists(self.value) then
df.set_executable_path_preference(exec, self.value)
executable_path_values[exec].text = df.get_executable_path_preference(exec)
end
end
}
end
-- create a stack widget to hold the executable path widgets
exec_man.stack = dt.new_widget("stack"){}
-- create a combobox to for indexing into the stack of widgets
exec_man.selector = dt.new_widget("combobox"){
label = "executable",
tooltip = _("select executable to modify"),
value = 1, "placeholder",
changed_callback = function(self)
for i,exec in ipairs(exec_table) do
if self.value == exec then
exec_man.stack.active = i
end
end
end
}
-- loop through the tabke of path preferences and populate the widgets
for i,exec in ipairs(exec_table) do
exec_man.stack[i] = dt.new_widget("box"){
dt.new_widget("section_label"){label = _("current")},
executable_path_values[exec],
dt.new_widget("section_label"){label = _("select")},
executable_path_widgets[exec],
dt.new_widget("section_label"){label = _("reset")},
dt.new_widget("button"){
label = _("clear"),
tooltip = string.format(_("clear path for %s"), exec),
clicked_callback = function()
df.set_executable_path_preference(exec, "")
executable_path_widgets[exec].value = ""
executable_path_values[exec].text = ""
end
}
}
df.executable_path_widget({exec})
end
update_combobox_choices(exec_man.selector, exec_table, 1)
-- register the lib
if dt.gui.current_view().id == "lighttable" then
install_module()
else
if not exec_man.event_registered then
dt.register_event(
"executable_manager", "view-changed",
function(event, old_view, new_view)
if new_view.name == "lighttable" and old_view.name == "darkroom" then
install_module()
end
end
)
exec_man.event_registered = true
end
end
script_data.destroy = destroy
script_data.restart = restart
script_data.destroy_method = "hide"
script_data.show = restart
return script_data