[API 7.0.0 compatibility] Made changes to take advantage of the latest API changes
including the ability to start and stop most scripts.
This commit is contained in:
Bill Ferguson
@@ -40,101 +40,18 @@ local darktable = require "darktable"
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local du = require "lib/dtutils"
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local filelib = require "lib/dtutils.file"
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-- Forward declare the functions
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local autostyle_apply_one_image,autostyle_apply_one_image_event,autostyle_apply,exiftool_attribute,capture
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local CURR_API_STRING = darktable.configuration.api_version_string
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du.check_min_api_version("7.0.0", "autostyle")
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-- Tested it with darktable 1.6.1 and darktable git from 2014-01-25
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du.check_min_api_version("2.0.2", "autostyle")
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-- return data structure for script_manager
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-- Receive the event triggered
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function autostyle_apply_one_image_event(event,image)
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autostyle_apply_one_image(image)
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end
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local script_data = {}
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-- Apply the style to an image, if it matches the tag condition
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function autostyle_apply_one_image (image)
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-- We need the tag, the value and the style_name provided from the configuration string
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local tag,value,style_name=string.match(darktable.preferences.read("autostyle","exif_tag","string"),"(%g+)%s*=%s*(%g+)%s*=>%s*(%g+)")
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-- check they all exist (correct syntax)
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if (not tag) then
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darktable.print("EXIF TAG not found in " .. darktable.preferences.read("autostyle","exif_tag","string"))
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return 0
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end
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if (not value) then
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darktable.print("value to match not found in " .. darktable.preferences.read("autostyle","exif_tag","string"))
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return 0
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end
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if (not style_name) then
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darktable.print("style name not found in " .. darktable.preferences.read("autostyle","exif_tag","string"))
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return 0
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end
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if not filelib.check_if_bin_exists("exiftool") then
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darktable.print("Can't find exiftool")
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return 0
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end
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-- First find the style (we have its name)
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local styles= darktable.styles
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local style
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for _,s in ipairs(styles) do
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if s.name == style_name then
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style=s
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end
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end
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if (not style) then
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darktable.print("style not found for autostyle: " .. style_name)
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return 0
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end
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-- Apply the style to image, if it is tagged
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local ok,auto_dr_attr= pcall(exiftool_attribute,image.path .. '/' .. image.filename,tag)
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--darktable.print_error("dr_attr:" .. auto_dr_attr)
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-- If the lookup fails, stop here
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if (not ok) then
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darktable.print("Couldn't get attribute " .. auto_dr_attr .. " from exiftool's output")
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return 0
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end
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if auto_dr_attr==value then
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darktable.print_log("Image " .. image.filename .. ": autostyle automatically applied " .. darktable.preferences.read("autostyle","exif_tag","string") )
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darktable.styles.apply(style,image)
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return 1
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else
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darktable.print_log("Image " .. image.filename .. ": autostyle not applied, exif tag " .. darktable.preferences.read("autostyle","exif_tag","string") .. " not matched: " .. auto_dr_attr)
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return 0
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end
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end
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function autostyle_apply( shortcut)
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local images = darktable.gui.action_images
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local images_processed =0
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local images_submitted =0
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for _,image in pairs(images) do
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images_submitted = images_submitted +1
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images_processed = images_processed + autostyle_apply_one_image(image)
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end
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darktable.print("Applied auto style to " .. images_processed .. " out of " .. images_submitted .. " image(s)")
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end
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-- Retrieve the attribute through exiftool
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function exiftool_attribute(path,attr)
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local cmd="exiftool -" .. attr .. " '" .. path .. "'";
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local exifresult=get_stdout(cmd)
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local attribute=string.match(exifresult,": (.*)")
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if (attribute == nil) then
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darktable.print_error( "Could not find the attribute " .. attr .. " using the command: <" .. cmd .. ">")
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-- Raise an error to the caller
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error( "Could not find the attribute " .. attr .. " using the command: <" .. cmd .. ">");
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end
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-- darktable.print_error("Returning attribute: " .. attribute)
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return attribute
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end
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script_data.destroy = nil -- function to destory the script
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script_data.destroy_method = nil -- set to hide for libs since we can't destroy them commpletely yet, otherwise leave as nil
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script_data.restart = nil -- how to restart the (lib) script after it's been hidden - i.e. make it visible again
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-- run command and retrieve stdout
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function get_stdout(cmd)
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local function get_stdout(cmd)
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-- Open the command, for reading
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local fd = assert(io.popen(cmd, 'r'))
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darktable.control.read(fd)
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@@ -151,13 +68,108 @@ function get_stdout(cmd)
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return data
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end
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-- Retrieve the attribute through exiftool
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local function exiftool_attribute(path, attr)
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local cmd = "exiftool -" .. attr .. " '" .. path .. "'";
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local exifresult = get_stdout(cmd)
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local attribute = string.match(exifresult, ": (.*)")
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if (attribute == nil) then
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darktable.print_error( "Could not find the attribute " .. attr .. " using the command: <" .. cmd .. ">")
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-- Raise an error to the caller
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error( "Could not find the attribute " .. attr .. " using the command: <" .. cmd .. ">");
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end
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-- darktable.print_error("Returning attribute: " .. attribute)
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return attribute
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end
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-- Apply the style to an image, if it matches the tag condition
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local function autostyle_apply_one_image (image)
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local pref = darktable.preferences.read("autostyle", "exif_tag", "string")
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-- We need the tag, the value and the style_name provided from the configuration string
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local tag, value, style_name = string.match(pref, "(%g+)%s*=%s*(%g+)%s*=>%s*(%g+)")
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-- check they all exist (correct syntax)
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if (not tag) then
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darktable.print("EXIF TAG not found in " .. pref)
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return 0
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end
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if (not value) then
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darktable.print("value to match not found in " .. pref)
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return 0
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end
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if (not style_name) then
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darktable.print("style name not found in " .. pref)
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return 0
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end
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if not filelib.check_if_bin_exists("exiftool") then
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darktable.print("Can't find exiftool")
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return 0
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end
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-- First find the style (we have its name)
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local styles = darktable.styles
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local style
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for _, s in ipairs(styles) do
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if s.name == style_name then
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style = s
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end
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end
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if (not style) then
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darktable.print("style not found for autostyle: " .. style_name)
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return 0
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end
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-- Apply the style to image, if it is tagged
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local ok, auto_dr_attr = pcall(exiftool_attribute, image.path .. '/' .. image.filename,tag)
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--darktable.print_error("dr_attr:" .. auto_dr_attr)
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-- If the lookup fails, stop here
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if (not ok) then
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darktable.print("Couldn't get attribute " .. auto_dr_attr .. " from exiftool's output")
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return 0
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end
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if auto_dr_attr == value then
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darktable.print_log("Image " .. image.filename .. ": autostyle automatically applied " .. pref)
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darktable.styles.apply(style,image)
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return 1
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else
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darktable.print_log("Image " .. image.filename .. ": autostyle not applied, exif tag " .. pref .. " not matched: " .. auto_dr_attr)
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return 0
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end
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end
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-- Receive the event triggered
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local function autostyle_apply_one_image_event(event,image)
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autostyle_apply_one_image(image)
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end
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local function autostyle_apply(shortcut)
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local images = darktable.gui.action_images
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local images_processed = 0
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local images_submitted = 0
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for _,image in pairs(images) do
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images_submitted = images_submitted + 1
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images_processed = images_processed + autostyle_apply_one_image(image)
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end
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darktable.print("Applied auto style to " .. images_processed .. " out of " .. images_submitted .. " image(s)")
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end
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local function destroy()
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darktable.destroy_event("autostyle", "shortcut")
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darktable.destroy_event("autostyle", "post-import-image")
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end
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-- Registering events
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darktable.register_event("shortcut", autostyle_apply,
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darktable.register_event("autostyle", "shortcut", autostyle_apply,
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"Apply your chosen style from exiftool tags")
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darktable.preferences.register("autostyle","exif_tag","string","Autostyle: EXIF_tag=value=>style","apply a style automatically if an EXIF_tag matches value. Find the tag with exiftool","")
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darktable.preferences.register("autostyle", "exif_tag", "string", "Autostyle: EXIF_tag=value=>style", "apply a style automatically if an EXIF_tag matches value. Find the tag with exiftool", "")
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darktable.register_event("post-import-image",
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darktable.register_event("autostyle", "post-import-image",
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autostyle_apply_one_image_event)
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script_data.destroy = destroy
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return script_data
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