import: npm-binary: Simplify deletion of development dependencies.

* guix/build/node-build-system.scm (delete-dev-dependencies): Include
peerDependencies as well.
* guix/import/npm-binary.scm (npm-package->package-sexp): Use it to delete all
development dependencies, instead of listing them.
* doc/guix.texi (Invoking guix import): Document this special treatment.

Change-Id: I97b20aa59db67dc0297e0514e8ae083ac2088cb2

1 files changed, 11 insertions, 0 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index f1e5c78a0b6..d974a5cdf24 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -15715,6 +15715,8 @@ in Guix.
 @end table
 
 @item npm-binary
+@cindex npm-binary, importer
+@cindex importer for node packages
 @cindex npm
 @cindex Node.js
 Import metadata from the @uref{https://registry.npmjs.org, npm
@@ -15737,6 +15739,15 @@ refer to transpiled or generated files, instead of being built from
 source.
 @end quotation
 
+@quotation Note
+Currently, the generated package definition contains a phase to delete
+the development dependencies (@code{devDependencies}) from the
+@file{package.json} file, if there are such dependencies, to reduce the
+occurrences of circular dependencies.  Also note that
+@code{peerDependencies} are treated as development dependencies and
+removed for the same reason.
+@end quotation
+
 Additional options include:
 
 @table @code