From b2207538e0ed5ffa1c2c44497118e5e661b54d57 Mon Sep 17 00:00:00 2001
From: Fred Loader <16803702-frealo@user.noreply.gitlab.com>
Date: Fri, 15 Sep 2023 13:37:39 -0400
Subject: [PATCH 1/5] hook/resume: hibernation support

---
 hook/resume/resume      |  7 +++++++
 hook/resume/resume.init | 12 ++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 hook/resume/resume
 create mode 100644 hook/resume/resume.init

diff --git a/hook/resume/resume b/hook/resume/resume
new file mode 100644
index 0000000..3e34ea4
--- /dev/null
+++ b/hook/resume/resume
@@ -0,0 +1,7 @@
+# vim: set ft=sh:
+# shellcheck shell=sh
+#
+# https://shellcheck.net/wiki/SC2154
+# shellcheck disable=2154
+
+copy_exec stat
diff --git a/hook/resume/resume.init b/hook/resume/resume.init
new file mode 100644
index 0000000..b59a62f
--- /dev/null
+++ b/hook/resume/resume.init
@@ -0,0 +1,12 @@
+# vim: set ft=sh:
+# shellcheck shell=sh
+#
+# https://shellcheck.net/wiki/SC2154
+# shellcheck disable=2154
+
+resolve_device "$resume"
+
+if [ -n "$device" ]; then
+	printf '%u:%u\n' $(stat -L -c '0x%t 0x%T' "$device") > /sys/power/resume || \
+	panic "failed to resume"
+fi

From f5fd266225fce386d8657bc5b946864cd57ba578 Mon Sep 17 00:00:00 2001
From: Fred Loader <16803702-frealo@user.noreply.gitlab.com>
Date: Fri, 15 Sep 2023 14:23:59 -0400
Subject: [PATCH 2/5] doc/*: added resume to docs

---
 doc/tinyramfs.5     | 8 ++++++++
 doc/tinyramfs.5.scd | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/doc/tinyramfs.5 b/doc/tinyramfs.5
index f93ffa1..250b4c7 100644
--- a/doc/tinyramfs.5
+++ b/doc/tinyramfs.5
@@ -144,6 +144,14 @@ lvm_tag
 The tag of your LVM logical volume.\&
 .P
 .RE
+.SS RESUME
+.P
+resume
+.P
+.RS 4
+The location of your swap partition.\&
+.P
+.RE
 .SS ZFS
 .P
 zfs_key
diff --git a/doc/tinyramfs.5.scd b/doc/tinyramfs.5.scd
index ea81ce6..c892218 100644
--- a/doc/tinyramfs.5.scd
+++ b/doc/tinyramfs.5.scd
@@ -103,6 +103,12 @@ lvm_tag
 
 	The tag of your LVM logical volume.
 
+## RESUME
+
+resume
+
+	The location of your swap partition.
+
 ## ZFS
 
 zfs_key

From 584fb16daf719e4aece213f7ad4e101f1f811a37 Mon Sep 17 00:00:00 2001
From: Fred Loader <16803702-frealo@user.noreply.gitlab.com>
Date: Fri, 15 Sep 2023 14:27:59 -0400
Subject: [PATCH 3/5] readme: added resume to readme

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 66f78ed..becd4a6 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Tiny initramfs written in POSIX shell
 - ZFS + native encryption support
 - LUKS (detached header, key), LVM
 - mdev, mdevd, eudev, systemd-udevd
+- Resume from swap partition
 
 ## Dependencies
 

From 16cb52f730f29d4c3e37b75a836df130e392a5c3 Mon Sep 17 00:00:00 2001
From: Fred Loader <145092902+loadfred@users.noreply.github.com>
Date: Wed, 27 Sep 2023 21:16:49 -0400
Subject: [PATCH 4/5] hook/resume: replaced stat

---
 hook/resume/resume      | 3 ++-
 hook/resume/resume.init | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/hook/resume/resume b/hook/resume/resume
index 3e34ea4..f4137f8 100644
--- a/hook/resume/resume
+++ b/hook/resume/resume
@@ -4,4 +4,5 @@
 # https://shellcheck.net/wiki/SC2154
 # shellcheck disable=2154
 
-copy_exec stat
+copy_exec readlink
+copy_exec cat
diff --git a/hook/resume/resume.init b/hook/resume/resume.init
index b59a62f..3d39f8e 100644
--- a/hook/resume/resume.init
+++ b/hook/resume/resume.init
@@ -7,6 +7,8 @@
 resolve_device "$resume"
 
 if [ -n "$device" ]; then
-	printf '%u:%u\n' $(stat -L -c '0x%t 0x%T' "$device") > /sys/power/resume || \
+	dev_link=$(readlink "$device")
+
+	cat /sys/class/block/${dev_link##*/}/dev > /sys/power/resume || \
 	panic "failed to resume"
 fi

From db911cf08cc2a8b3616e3fe10926f1461acb4f63 Mon Sep 17 00:00:00 2001
From: Fred Loader <145092902+loadfred@users.noreply.github.com>
Date: Wed, 27 Sep 2023 22:28:15 -0400
Subject: [PATCH 5/5] hook/resume/resume.init: shellcheck fix

---
 hook/resume/resume.init | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hook/resume/resume.init b/hook/resume/resume.init
index 3d39f8e..2c3de5e 100644
--- a/hook/resume/resume.init
+++ b/hook/resume/resume.init
@@ -9,6 +9,6 @@ resolve_device "$resume"
 if [ -n "$device" ]; then
 	dev_link=$(readlink "$device")
 
-	cat /sys/class/block/${dev_link##*/}/dev > /sys/power/resume || \
+	cat /sys/class/block/"${dev_link##*/}"/dev > /sys/power/resume || \
 	panic "failed to resume"
 fi