Make ggplot2 a soft dependency

rstudio · Mar 31, 2023 · 1b39ed1 · 1b39ed1
1 parent a0ff24e
commit 1b39ed1
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -40,7 +40,6 @@ Imports:
     commonmark (>= 1.8.1),
     dplyr (>= 1.1.0),
     fs (>= 1.6.1),
-    ggplot2 (>= 3.4.1),
     glue (>= 1.6.2),
     htmltools (>= 0.5.4),
     htmlwidgets (>= 1.6.1),
@@ -57,6 +56,7 @@ Imports:
 Suggests:
     covr,
     digest (>= 0.6.31),
+    ggplot2,
     knitr,
     lubridate,
     paletteer,

diff --git a/R/image.R b/R/image.R
@@ -298,6 +298,14 @@ ggplot_image <- function(
     aspect_ratio = 1.0
 ) {
 
+  if (!requireNamespace("ggplot2", quietly = TRUE)) {
+
+    cli::cli_abort(c(
+      "Using the `ggplot_image()` function requires the `ggplot2` package.",
+      "*" = "It can be installed with `install.packages(\"ggplot2\")`."
+    ))
+  }
+
   if (is.numeric(height)) {
     height <- paste0(height, "px")
   }