Update to latest Go and u-root

This should fix the dependabot warnings.

This change also adds support for building the initramfs on Mac and
makes the switch to using Go modules.

Tested with `task -fv core:loader`

Signed-off-by: Ryan O'Leary <[email protected]>

.circleci/config.yml

@@ -132,7 +132,6 @@ jobs:
           command: |
             sudo apt update
             sudo apt install gcc-aarch64-linux-gnu fakeroot flex bison bc patch libssl-dev zlib1g-dev libelf-dev qemu-kvm
-            GO111MODULE=off go get github.com/u-root/u-root
             sh -c "$(curl --location https://taskfile.dev/install.sh)" -- -d -b ~/.local/bin
       # Because the included version is too old and lacks the -U flag...
       - run:

README.md

@@ -92,16 +92,8 @@ Get them for 32bit via e.g.:
 sudo apt install gcc-arm-none-eabi mtd-utils golang fakeroot flex bison device-tree-compiler bc libssl-dev libelf-dev qemu-kvm
 ```
 
-We also need both u-bmc and u-root in our GOPATH so install them with:
+Clone to any directory (Go modules are supported!):
 ```
-GO111MODULE=off go get github.com/u-root/u-root
-GO111MODULE=off go get github.com/u-root/u-bmc
-```
-Or use git clone:
-```
-mkdir $GOPATH/src/github.com/u-root
-cd $GOPATH/src/github.com/u-root
-git clone https://github.com/u-root/u-root
 git clone https://github.com/u-root/u-bmc
 ```
 

Taskfile.yml

@@ -14,7 +14,13 @@ env:
 
 vars:
   CPUS:
-    sh: echo $(($(grep -c processor /proc/cpuinfo) / 2))
+    sh: |
+      if [[ "$(uname -s)" = "Linux" ]]; then
+        grep -c processor /proc/cpuinfo # Linux
+      else
+        getconf _NPROCESSORS_ONLN # fallback (including apple)
+      fi
+      exit $?
 
 dotenv: ['platform/{{.__TARGET}}/config.env', 'kernel.env']
 
@@ -48,7 +54,7 @@ tasks:
       - mkdir -p build
       - task: platform:build-{{.__TARGET}}
       - echo "Done!"
-      
+
   # Remove compiled files
   clean:
     desc: Cleans up compiled files

go.mod

@@ -1,6 +1,6 @@
 module github.com/u-root/u-bmc
 
-go 1.17
+go 1.19
 
 require (
 	github.com/beevik/ntp v0.3.0
@@ -21,43 +21,45 @@ require (
 	github.com/prometheus/client_golang v1.11.0
 	github.com/spf13/afero v1.6.0
 	github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07
-	github.com/u-root/gobusybox/src v0.0.0-20210529132627-adc854ea4425
-	github.com/u-root/u-root v0.0.0-20210903181157-ff1c8497f204
-	github.com/vishvananda/netlink v1.1.1-0.20200221165523-c79a4b7b4066
+	github.com/u-root/gobusybox/src v0.0.0-20221229083637-46b2883a7f90
+	github.com/u-root/u-root v0.11.1-0.20230209170558-eb85a1aedf89
+	github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54
 	go.uber.org/zap v1.19.1
-	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
-	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+	golang.org/x/net v0.5.0
+	golang.org/x/sync v0.1.0
+	golang.org/x/sys v0.5.0
 	google.golang.org/grpc v1.39.0
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.1.1 // indirect
 	github.com/digitalocean/go-libvirt v0.0.0-20201209184759-e2a69bcd5bd1 // indirect
-	github.com/dustin/go-humanize v1.0.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/google/go-cmp v0.5.6 // indirect
 	github.com/google/goexpect v0.0.0-20210430020637-ab937bf7fd6f // indirect
 	github.com/google/goterm v0.0.0-20200907032337-555d40f16ae2 // indirect
-	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/josharian/native v1.0.1-0.20221213033349-c1e37c09b531 // indirect
 	github.com/klauspost/compress v1.10.6 // indirect
 	github.com/klauspost/pgzip v1.2.4 // indirect
 	github.com/matryer/is v1.4.0 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mdlayher/socket v0.0.0-20210307095302-262dc9984e00 // indirect
+	github.com/pierrec/lz4/v4 v4.1.17 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.26.0 // indirect
 	github.com/prometheus/procfs v0.6.0 // indirect
-	github.com/u-root/uio v0.0.0-20210528151154-e40b768296a7 // indirect
+	github.com/u-root/uio v0.0.0-20221213070652-c3537552635f // indirect
 	github.com/ulikunitz/xz v0.5.8 // indirect
 	github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.7.0 // indirect
-	golang.org/x/mod v0.4.2 // indirect
-	golang.org/x/text v0.3.6 // indirect
-	golang.org/x/tools v0.1.5 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	golang.org/x/mod v0.8.0 // indirect
+	golang.org/x/text v0.6.0 // indirect
+	golang.org/x/tools v0.5.0 // indirect
 	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 // indirect
 	google.golang.org/protobuf v1.26.0 // indirect
 	gopkg.in/square/go-jose.v2 v2.1.9 // indirect