improvements and fixes

[distro-setup] / brc2

diff --git a/brc2 b/brc2
index 491dcada8e562e33990a96b50427ab9cf1af16a2..7d94df1fc12e1011bc08fe6adaf3078fbad89a78 100644 (file)
--- a/brc2
+++ b/brc2
@@ -6,7 +6,9 @@
 
 # * settings
 
-HISTFILE=$HOME/.bh
+if [[ $HISTFILE ]]; then
+  HISTFILE=$HOME/.bh
+fi
 
 source /a/bin/distro-setup/path-add-function
 path-add /a/exe
@@ -1074,9 +1076,11 @@ jrf() { journalctl -n 200 -f "$@" ; }
 
 ccomp journalctl jtail jr jrf
 
-kff() { # keyboardio firmware flash
-  pushd /a/bin/distro-setup/Arduino/Model01-Firmware
-  yes $'\n' | make flash
+kff() { # keyboardio firmware flash. you must hold down the tilde key
+  pushd /a/opt/Model01-Firmware
+  # if we didn't want this yes hack, then remove "shell read" from
+  # /a/opt/Kaleidoscope/etc/makefiles/sketch.mk
+  yes $'\n' | VERBOSE=1 make flash
   popd
 }
 
@@ -1134,11 +1138,37 @@ EOF
 }
 
 
+mns() { # mount namespace
+  ns=$1
+  shift
+  s mkdir -p /root/mount_namespaces
+  if ! sudo mountpoint /root/mount_namespaces >/dev/null; then
+    m sudo mount --bind /root/mount_namespaces /root/mount_namespaces
+  fi
+  m sudo mount --make-private /root/mount_namespaces
+  if [[ ! -e /root/mount_namespaces/$ns ]]; then
+    m sudo touch /root/mount_namespaces/$ns
+  fi
+  if ! sudo mountpoint /root/mount_namespaces/$ns >/dev/null; then
+    m sudo unshare --propagation slave --mount=/root/mount_namespaces/$ns /bin/true
+  fi
+  m sudo -E /usr/bin/nsenter --mount=/root/mount_namespaces/$ns "$@"
+}
+
+mnsnonet() {
+  ns=$1
+  if ! s ip netns list | grep -Fx nonet &>/dev/null; then
+    s ip netns add nonet
+  fi
+  mns $ns --net=/var/run/netns/nonet sudo -E -u iank /bin/bash
+}
+
+
 lom() {
   local l base
   if [[ $1 == /* ]]; then
     base=${1##*/}
-    if mountpoint -q /mnt/$base; then
+    if mns $base mountpoint -q /mnt/$base; then
       return 0
     fi
     l=$(losetup -j $1 | sed -rn 's/^([^ ]+): .*/\1/p' | head -n1 ||:)
@@ -1153,12 +1183,12 @@ lom() {
       fi
     fi
     m sudo mkdir -p /mnt/$base
-    m sudo mount /dev/mapper/$base /mnt/$base
-    m sudo chown $USER:$USER /mnt/$base
+    m mns $base mount /dev/mapper/$base /mnt/$base
+    m mns $base chown $USER:$USER /mnt/$base
   else
     base=$1
-    if mountpoint /mnt/$base &>/dev/null; then
-      m sudo umount /mnt/$base
+    if mns $base mountpoint /mnt/$base &>/dev/null; then
+      m mns $base umount /mnt/$base
     fi
     if sudo cryptsetup status /dev/mapper/$base &>/dev/null; then
       if ! m sudo cryptsetup luksClose /dev/mapper/$base; then
@@ -1249,6 +1279,54 @@ mo() { xset dpms force off; } # monitor off
 mpvd() {
   mpv --profile=d "$@";
 }
+# mpv all media files in . or $1
+mpvm() {
+  local -a extensions arg
+  # get page source of https://en.wikipedia.org/w/index.php?title=Video_file_format&action=edit
+  # into /a/x.log, then
+  # grep '^| *\.' /a/x.log | sed 's/| *//;s/,//g'
+  extensions=(
+    .webm
+    .mkv
+    .flv
+    .flv
+    .vob
+    .ogv .ogg
+    .drc
+    .gif
+    .gifv
+    .mng
+    .avi
+    .MTS .M2TS .TS
+    .mov .qt
+    .wmv
+    .yuv
+    .rm
+    .rmvb
+    .viv
+    .asf
+    .amv
+    .mp4 .m4p .m4v
+    .mpg .mp2 .mpeg .mpe .mpv
+    .mpg .mpeg .m2v
+    .m4v
+    .svi
+    .3gp
+    .3g2
+    .mxf
+    .roq
+    .nsv
+  )
+  arg=("(" -iname "*${extensions[0]}")
+  for (( i=1 ; i < ${#extensions[@]}; i++ )); do
+    arg+=(-o -iname "*${extensions[i]}")
+  done
+  arg+=(")")
+  dir=${1:-.}
+  # debug:
+  #find $dir "${arg[@]}" -size +1M
+  find $dir "${arg[@]}" -size +1M -exec mpv --profile=d '{}' +
+}
 mpvs() {
   mpv --profile=s "$@";
 }
@@ -1754,14 +1832,9 @@ mailnncheck() {
 
 
 vpncmd() {
-  m sudo -E env "PATH=$PATH" nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*client.conf") -n -m "$@"
-}
-vpnf() {
-  sudo -v
-  vpncmd sudo -E -u iank env "PATH=$PATH" abrowser -no-remote -P vpn &
-  sleep 5
-  r
+  m sudo -E env "PATH=$PATH" nsenter -t $(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*client.conf") -n "$@"
 }
+
 vpn2f() {
   sudo -v
   vpncmd sudo -u iank env "PATH=$PATH" abrowser -no-remote -P vpn2 & r
@@ -2018,7 +2091,9 @@ path-add /usr/local/go/bin
 # I have both because I was trying to solve an issue that
 # turned out to be unrelated.
 # ARDUINO_PATH=/a/opt/Arduino/build/linux/work
-export ARDUINO_PATH=/a/opt/arduino-1.8.15
+
+## i should have documented this...
+# based on https://github.com/keyboardio/Kaleidoscope
 export KALEIDOSCOPE_DIR=/a/opt/Kaleidoscope
 
 # They want to be added to the start, but i think