From 34ae748408bda90c629889ec226a4097f144ff27 Mon Sep 17 00:00:00 2001
From: Espen Henriksen <dev+git@henriksen.is>
Date: Tue, 19 Apr 2016 21:06:35 +0200
Subject: [PATCH 1/2] #7 Add support for asymmetric encryption

---
 yadm | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/yadm b/yadm
index 429f3d3..40718d6 100755
--- a/yadm
+++ b/yadm
@@ -223,8 +223,16 @@ function encrypt() {
 
   #; process relative to YADM_WORK
   YADM_WORK=$(git config core.worktree)
+  GPG_KEY="$(config yadm.gpg-recipient)"
   cd $YADM_WORK
 
+  #; Build gpg options for gpg
+  if [ "$GPG_KEY" != "" ]; then
+    GPG_OPTS="-er $GPG_KEY"
+  else
+    GPG_OPTS="-c"
+  fi
+
   #; build a list of globs from YADM_ENCRYPT
   GLOBS=()
   while IFS='' read -r glob || [ -n "$glob" ]; do
@@ -234,7 +242,7 @@ function encrypt() {
   done < "$YADM_ENCRYPT"
 
   #; encrypt all files which match the globs
-  tar -cv ${GLOBS[@]} | gpg --yes -c --output "$YADM_ARCHIVE"
+  tar -cv ${GLOBS[@]} | gpg --yes "$GPG_OPTS" --output "$YADM_ARCHIVE"
   if [ $? = 0 ]; then
     echo "Wrote new file: $YADM_ARCHIVE"
   else

From 33c8cd8a2176dad3b3d597217126f34174aa60ce Mon Sep 17 00:00:00 2001
From: Espen Henriksen <dev@henriksen.is>
Date: Tue, 19 Apr 2016 21:56:00 +0200
Subject: [PATCH 2/2] #7 Document gpg-recipient

---
 yadm.1  | 6 ++++++
 yadm.md | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/yadm.1 b/yadm.1
index b369aaa..5bf1f35 100644
--- a/yadm.1
+++ b/yadm.1
@@ -248,6 +248,12 @@ This feature is enabled by default.
 Disable the permission changes to
 .IR $HOME/.gnupg/* .
 This feature is enabled by default.
+.TP
+.B yadm.gpg-recipient
+Asymmetrically encrypt files with a gpg public/private key pair.
+Provide a key ID to encrypt against that public key.
+If left blank or not provided, symmetric encryption is used instead.
+This feature is disabled by deafult.
 .SH ALTERNATES
 When managing a set of files across different systems, it can be useful to have
 an automated way of choosing an alternate version of a file for a different
diff --git a/yadm.md b/yadm.md
index 7d8a1bd..0a2ab22 100644
--- a/yadm.md
+++ b/yadm.md
@@ -150,6 +150,12 @@
               Disable the permission changes to $HOME/.gnupg/*.  This  feature
               is enabled by default.
 
+       yadm.gpg-recipient
+              Asymmetrically encrypt files with a gpg public/private key pair.
+              Provice a key ID to encrypt against that public key.
+              If left blank or not provided, symmetric encryption is used
+              instead. This feature is disabled by deafult.
+
 ## ALTERNATES
        When managing a set of files across different systems, it can be useful
        to have an automated way of choosing an alternate version of a file for