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#' @title Summarize target progress.
#' @export
#' @family progress
#' @description Summarize the progress of a run of the pipeline.
#' @return A data frame with one row and the following
#' optional columns that can be selected with `fields`.
#' (`time` is omitted by default.)
#' * `dispatched`: number of targets that were sent off to run and
#' did not (yet) finish. These targets may not actually be running,
#' depending on the status and workload of parallel workers.
#' * `completed`: number of targets that completed without
#' error or cancellation.
#' * `errored`: number of targets that threw an error.
#' * `canceled`: number of canceled targets (see [tar_cancel()]).
#' * `since`: how long ago progress last changed (`Sys.time() - time`).
#' * `time`: the time when the progress last changed
#' (modification timestamp of the `_targets/meta/progress` file).
#' @inheritParams tar_validate
#' @param fields Optional character vector of names of progress data
#' columns to read. Set to `NULL` to read all fields.
#' @examples
#' if (identical(Sys.getenv("TAR_EXAMPLES"), "true")) { # for CRAN
#' tar_dir({ # tar_dir() runs code from a temp dir for CRAN.
#' tar_script({
#' list(
#' tar_target(x, seq_len(2)),
#' tar_target(y, x, pattern = map(x)),
#' tar_target(z, stopifnot(y < 1.5), pattern = map(y), error = "continue")
#' )
#' }, ask = FALSE)
#' try(tar_make())
#' tar_progress_summary()
#' })
#' }
tar_progress_summary <- function(
fields = c(
"skipped",
"dispatched",
"completed",
"errored",
"canceled",
"since"
),
store = targets::tar_config_get("store")
) {
tar_assert_allow_meta("tar_progress_summary", store)
tar_assert_scalar(store)
tar_assert_chr(store)
tar_assert_nzchar(store)
time <- file.mtime(path_progress(path_store = store))
progress <- progress_init(path_store = store)
progress <- tibble::as_tibble(progress$database$read_condensed_data())
progress <- progress[progress$type != "pattern",, drop = FALSE] # nolint
out <- tibble::tibble(
skipped = sum(progress$progress == "skipped"),
dispatched = sum(progress$progress == "dispatched"),
completed = sum(progress$progress == "completed"),
errored = sum(progress$progress == "errored"),
canceled = sum(progress$progress == "canceled"),
since = units_seconds(difftime(Sys.time(), time, units = "secs")),
time = time_stamp(time)
)
fields_quosure <- rlang::enquo(fields)
fields <- tar_tidyselect_eval(fields_quosure, colnames(out)) %|||%
colnames(out)
out[, fields, drop = FALSE]
}
# Just for the tar_watch() app. # nolint
tar_progress_summary_gt <- function(path_store) {
progress <- tar_progress_summary(fields = NULL, store = path_store)
tar_progress_display_gt(progress)
}
tar_progress_display_gt <- function(progress) {
out <- gt_borderless(progress)
out <- gt::tab_style(
out,
gt::cell_text(weight = "bold"),
locations = gt::cells_column_labels(everything())
)
colors <- data_frame(
progress = c("skipped", "dispatched", "completed", "canceled", "errored"),
fill = c("#3e236e", "#DC863B", "#E1BD6D", "#FAD510", "#C93312"),
color = c("white", "black", "black", "black", "white")
)
for (index in seq_len(nrow(colors))) {
out <- gt::tab_style(
out,
style = list(
gt::cell_fill(color = colors$fill[index]),
gt::cell_text(color = colors$color[index])
),
locations = gt::cells_body(
columns = colors$progress[index],
rows = progress[[colors$progress[index]]] > 0L
)
)
}
out
}
gt_borderless <- function(x) {
out <- gt::gt(x)
out <- gt::cols_width(out, everything() ~ gt::pct(16.6))
out <- gt::cols_align(out, align = "left", columns = everything())
out <- gt::tab_options(
out,
row.striping.include_table_body = TRUE,
table.border.top.style = "hidden",
table.border.bottom.style = "hidden",
table_body.border.bottom.style = "hidden"
)
out <- gt::tab_style(
out,
style = gt::cell_borders(weight = gt::px(0)),
locations = gt::cells_body()
)
out
}
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