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Merge pull request #150 from renkun-ken/session
R session watcher
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,184 @@ | ||
| if (interactive() && | ||
| is.null(getOption("vscodeR")) && | ||
| !identical(Sys.getenv("RSTUDIO"), "1")) { | ||
| local({ | ||
| pid <- Sys.getpid() | ||
| tempdir <- tempdir() | ||
| dir <- normalizePath(file.path(".vscode", "vscode-R"), mustWork = FALSE) | ||
| dir_session <- file.path(dir, pid) | ||
| if (dir.create(dir_session, showWarnings = FALSE, recursive = TRUE) || dir.exists(dir_session)) { | ||
| reg.finalizer(.GlobalEnv, function(e) { | ||
| unlink(dir_session, recursive = TRUE, force = TRUE) | ||
| }, onexit = TRUE) | ||
|
|
||
| response_file <- file.path(dir, "response.log") | ||
| globalenv_file <- file.path(dir_session, "globalenv.json") | ||
| plot_file <- file.path(dir_session, "plot.png") | ||
| plot_updated <- FALSE | ||
|
|
||
| options(vscodeR = environment()) | ||
| options(device = function(...) { | ||
| pdf(NULL, bg = "white") | ||
| dev.control(displaylist = "enable") | ||
| }) | ||
| setHook("plot.new", function(...) { | ||
| plot_updated <<- TRUE | ||
| }) | ||
| setHook("grid.newpage", function(...) { | ||
| plot_updated <<- TRUE | ||
| }) | ||
|
|
||
| options(browser = function(url, ...) { | ||
| respond("browser", url = url) | ||
| }) | ||
| options(viewer = function(url, ...) { | ||
| respond("webview", file = url) | ||
| }) | ||
| options(page_viewer = function(url, ...) { | ||
| respond("webview", file = url) | ||
| }) | ||
|
|
||
| respond <- function(command, ...) { | ||
| json <- jsonlite::toJSON(list( | ||
| time = Sys.time(), | ||
| pid = pid, | ||
| command = command, | ||
| ... | ||
| ), auto_unbox = TRUE) | ||
| cat(json, "\n", file = response_file, append = TRUE) | ||
| } | ||
|
|
||
| update <- function(...) { | ||
| objs <- eapply(.GlobalEnv, function(obj) { | ||
| list( | ||
| class = class(obj), | ||
| type = typeof(obj), | ||
| length = length(obj), | ||
| str = trimws(utils::capture.output(str(obj, max.level = 0, give.attr = FALSE))) | ||
| ) | ||
| }, all.names = FALSE, USE.NAMES = TRUE) | ||
| jsonlite::write_json(objs, globalenv_file, auto_unbox = TRUE, pretty = TRUE) | ||
| if (plot_updated && dev.cur() == 2L) { | ||
| plot_updated <<- FALSE | ||
| record <- recordPlot() | ||
| if (length(record[[1]])) { | ||
| png(plot_file) | ||
| on.exit(dev.off()) | ||
| replayPlot(record) | ||
| } | ||
| } | ||
| TRUE | ||
| } | ||
|
|
||
| attach <- function() { | ||
| respond("attach") | ||
| } | ||
|
|
||
| dataview_data_type <- function(x) { | ||
| if (is.numeric(x)) { | ||
| if (is.null(attr(x, "class"))) { | ||
| "num" | ||
| } else { | ||
| "num-fmt" | ||
| } | ||
| } else if (inherits(x, "Date")) { | ||
| "date" | ||
| } else { | ||
| "string" | ||
| } | ||
| } | ||
|
|
||
| dataview_table <- function(data) { | ||
| if (is.data.frame(data)) { | ||
| colnames <- colnames(data) | ||
| if (is.null(colnames)) { | ||
| colnames <- sprintf("(X%d)", seq_len(ncol(data))) | ||
| } else { | ||
| colnames <- trimws(colnames) | ||
| } | ||
| if (.row_names_info(data) > 0L) { | ||
| rownames <- rownames(data) | ||
| rownames(data) <- NULL | ||
| data <- cbind(rownames, data, stringsAsFactors = FALSE) | ||
| colnames <- c(" ", colnames) | ||
| } | ||
| types <- vapply(data, dataview_data_type, | ||
| character(1L), USE.NAMES = FALSE) | ||
| data <- vapply(data, function(x) { | ||
| trimws(format(x)) | ||
| }, character(nrow(data)), USE.NAMES = FALSE) | ||
| } else if (is.matrix(data)) { | ||
| if (is.factor(data)) { | ||
| data <- format(data) | ||
| } | ||
| types <- rep(dataview_data_type(data), ncol(data)) | ||
| colnames <- colnames(data) | ||
| colnames(data) <- NULL | ||
| if (is.null(colnames)) { | ||
| colnames <- sprintf("(X%d)", seq_len(ncol(data))) | ||
| } else { | ||
| colnames <- trimws(colnames) | ||
| } | ||
| rownames <- rownames(data) | ||
| rownames(data) <- NULL | ||
| data <- trimws(format(data)) | ||
| if (!is.null(rownames)) { | ||
| types <- c("string", types) | ||
| colnames <- c(" ", colnames) | ||
| data <- cbind(` ` = trimws(rownames), data) | ||
| } | ||
| } else { | ||
| stop("data must be data.frame or matrix") | ||
| } | ||
| columns <- .mapply(function(title, type) { | ||
| class <- if (type == "string") "text-left" else "text-right" | ||
| list(title = jsonlite::unbox(title), | ||
| className = jsonlite::unbox(class), | ||
| type = jsonlite::unbox(type)) | ||
| }, list(colnames, types), NULL) | ||
| list(columns = columns, data = data) | ||
| } | ||
|
|
||
| dataview <- function(x, title) { | ||
| if (missing(title)) { | ||
| title <- deparse(substitute(x))[[1]] | ||
| } | ||
| if (is.data.frame(x) || is.matrix(x)) { | ||
| data <- dataview_table(x) | ||
| file <- tempfile(tmpdir = tempdir, fileext = ".json") | ||
| jsonlite::write_json(data, file, matrix = "rowmajor") | ||
| respond("dataview", source = "table", type = "json", | ||
| title = title, file = file) | ||
| } else if (is.list(x)) { | ||
| file <- tempfile(tmpdir = tempdir, fileext = ".json") | ||
| jsonlite::write_json(x, file, auto_unbox = TRUE) | ||
| respond("dataview", source = "list", type = "json", | ||
| title = title, file = file) | ||
| } else { | ||
| stop("Unsupported object class") | ||
| } | ||
| } | ||
|
|
||
| rebind <- function(sym, value, ns) { | ||
| ns <- getNamespace(ns) | ||
| unlockBinding(sym, ns) | ||
| on.exit(lockBinding(sym, ns)) | ||
| assign(sym, value, envir = ns) | ||
| } | ||
|
|
||
| rebind(".External.graphics", function(...) { | ||
| plot_updated <<- TRUE | ||
| .prim <- .Primitive(".External.graphics") | ||
| .prim(...) | ||
| }, "base") | ||
| rebind("View", dataview, "utils") | ||
|
|
||
| update() | ||
| addTaskCallback(update, name = "vscode-R") | ||
| lockEnvironment(environment(), bindings = TRUE) | ||
| unlockBinding("plot_updated", environment()) | ||
| attach() | ||
| } | ||
| invisible() | ||
| }) | ||
| } |
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