Merge pull request #360 from r-lib/feature/ignore-missing

Add ?ignore-unavailable for ignore missing soft deps

NEWS.md

@@ -7,6 +7,10 @@
   the `git-submodules` configuration option is set to `TRUE`. See
   `?"pkgdepends-config"` (#354).
 
+* The new `?ignore-unavailable` parameter makes it easy to ignore soft
+  dependencies that are unavailable
+  (https://github.com/r-lib/pak/issues/606).
+
 * pkgdepends now automatically ignores soft dependencies that have an
   incompatible OS type (`OS_type` entry in `DESCRIPTION`) when installing
   packages.

R/parse-remotes.R

@@ -272,8 +272,15 @@ add_ref_params <- function(res, params) {
   res
 }
 
-known_query_params <- c("ignore", "ignore-before-r", "ignore-build-errors",
-                        "nocache", "reinstall", "source")
+known_query_params <- c(
+  "ignore",
+  "ignore-before-r",
+  "ignore-build-errors",
+  "ignore-unavailable",
+  "nocache",
+  "reinstall",
+  "source"
+)
 
 parse_query <- function(ref) {
   query <- sub("^[^?]*(\\?|$)", "", ref)

R/solve.R

@@ -621,6 +621,7 @@ pkgplan_i_lp_dependencies <- function(lp, config) {
   num_candidates <- lp$num_candidates
   ruled_out <- lp$ruled_out
   base <- base_packages()
+
   ignored <- vlapply(pkgs$params, is_true_param, "ignore")
   ignore_rver <- vcapply(pkgs$params, get_param_value, "ignore-before-r")
   if (any(!is.na(ignore_rver))) {
@@ -629,12 +630,21 @@ pkgplan_i_lp_dependencies <- function(lp, config) {
     ignored2 <- package_version(ignore_rver) > current
     ignored <- ignored | ignored2
   }
+  ignore_unavail <- vlapply(
+    pkgs$params,
+    is_true_param,
+    "ignore-unavailable"
+  )
+  failed <- pkgs$status == "FAILED"
+  ignored <- ignored | (ignore_unavail & failed)
+
   # ignore packages with the wrong OS type
   if (config$get("goal") == "install") {
     os <- os_type()
     bad <- which(!is.na(pkgs$os_type) & pkgs$os_type != os)
     if (length(bad) > 0) ignored[bad] <- TRUE
   }
+
   soft_deps <- tolower(pkg_dep_types_soft())
 
   ## 4. Package dependencies must be satisfied

tools/doc/pkg-refs.Rmd

@@ -143,6 +143,10 @@ it is already installed.
   `Matrix=?ignore-before-r=4.1.2` will ignore the Matrix package on R versions
   that are older than 4.1.2. This parameter really only makes sense in the
   `packgename=?ignore` form.
+- `ignore-unavailable` is a flag. It can only be specified for soft
+  dependencies. If specified and the package is not available, it will be
+  ignored. This parameter really only makes sense in the
+  `packagename=?ignore-unavailable` form.
 - `source` is a flag parameter. If specified, then a source R package
   is requested from a CRAN-like repository. For package installations
   `source` always triggers a re-install. In other words, `source` implies the

tools/doc/pkg-refs.md

@@ -135,6 +135,10 @@ ignored on R versions that are older than the specified one. E.g.
 \verb{Matrix=?ignore-before-r=4.1.2} will ignore the Matrix package on R versions
 that are older than 4.1.2. This parameter really only makes sense in the
 \code{packgename=?ignore} form.
+\item \code{ignore-unavailable} is a flag. It can only be specified for soft
+dependencies. If specified and the package is not available, it will be
+ignored. This parameter really only makes sense in the
+\code{packagename=?ignore-unavailable} form.
 \item \code{source} is a flag parameter. If specified, then a source R package
 is requested from a CRAN-like repository. For package installations
 \code{source} always triggers a re-install. In other words, \code{source} implies the