pw-apply: don't use git-pw

There are multiple reasons to steer clear of git pw:

1. The fewer external dependencies the better (although we
   still need to replace the git pw use in -a to get rid
   of the dependency completely).
2. Speed - git-pw takes 1.8s per request, we do a show and
   a download. curl requests take 1s to complete, moreover
   for auto-merge we need to download series json anyway.
   All in all with auto-merge we save 2.6s.
3. Output format of show is cluttered and useless IMHO, we
   can do better.

Example output, before:

Property    Value
----------  --------------------------------------------------------------------------
ID          212566
Date        2020-11-06T03:52:08
Name        [v4,net-next,1/3] ptp: idt82p33: add adjphase support
URL         https://patchwork.ozlabs.org/project/netdev/list/?series=212566
Submitter   Min Li (min.li.xe@renesas.com)
Project     Linux network development
Version     4
Received    3 of 3
Complete    True
Cover
Patches     1395475 [v4,net-next,1/3] ptp: idt82p33: add adjphase support
            1395450 [v4,net-next,2/3] ptp: idt82p33: use i2c_master_send for bus write
            1395474 [v4,net-next,3/3] ptp: idt82p33: optimize _idt82p33_adjfine

After:

By: Min Li  Age: 1d 17h  Tree: net-next  Version: 4  Patches: 3
-----
  ptp: idt82p33: add adjphase support
  ptp: idt82p33: use i2c_master_send for bus write
  ptp: idt82p33: optimize _idt82p33_adjfine

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2 files changed, 110 insertions, 6 deletions

diff --git a/lib.sh b/lib.sh
new file mode 100644
index 0000000..0612701
--- /dev/null
+++ b/lib.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2020 Jakub Kicinski <kuba@kernel.org>
+
+bold()
+{
+  echo -n -e "\e[1m$@"
+  [ ! -z "$@" ] && echo -n -e "\e[0m"
+}
+
+normal()
+{
+  echo -n -e "\e[0m$@"
+}
+
+pr_trunc_n()
+{
+  local len=$1
+  local str="$2"
+
+  if [ ${#str} -le $len ]; then
+    echo -n "$str"
+  else
+    echo -n ${str::len - 3}...
+  fi
+}
+
+date_to_age()
+{
+  local past="$1"
+
+  now=$(date +%s)
+  was=$(date -d "$past" +%s)
+
+  hours=$(( (now - was) / (60 * 60) ))
+
+  echo "$((hours / 24))d $((hours % 24))h"
+}
+
+subject_remove_tag()
+{
+  echo "$@" | sed -e 's/\[.*\] *//'
+}
+
+subject_get_tree()
+{
+  tree=$(echo "$@" |
+	   sed -n 's/\[\(.*\)\].*/\1/p' |
+	   tr , '\n' |
+	   sed -n '/[a-z]$/p')
+  echo ${tree:--}
+}
+
+pw_series_download_mbox()
+{
+  local	series_json="$1"
+  local out_file=${2:-mbox}
+
+  mbox_url=$(echo "$series_json" | jq -r '.mbox')
+  curl -s "$mbox_url" > $out_file
+}
+
+pw_series_print_short()
+{
+  local series_json="$1"
+
+  series_subj=$(echo "$series_json" | jq -r '.name')
+  patch_subj=$(echo "$series_json" | jq -r '.patches[0].name')
+  cover_letter=$(echo "$series_json" | jq -r '.cover_letter')
+  cnt=$(echo "$series_json" | jq -r '.patches | length')
+  author=$(echo "$series_json" | jq -r '.submitter.name')
+  ver=$(echo "$series_json" | jq -r '.version')
+  date=$(echo "$series_json" | jq -r '.date')
+
+  date="$date UTC"
+
+  name=$(subject_remove_tag "$series_subj")
+  tree=$(subject_get_tree "$patch_subj")
+  age=$(date_to_age "$date")
+  resend=$(echo "$patch_subj" | sed -n 's/.*resend.*/r/Ip')
+
+  bold "By: $author  Age: $age  Tree: $tree  Version: $ver$resend  Patches: $cnt\n"
+  echo "-----"
+
+  if [ "$cover_letter" != "null" ]; then
+    bold
+    pr_trunc_n 78 "$name"
+    normal "\n"
+  fi
+
+  echo "$series_json" |
+    jq -r '.patches[].name' |
+    while read -r patch_subj; do
+      patch_name=$(subject_remove_tag "$patch_subj")
+      echo -n "  "
+      pr_trunc_n 77 "$patch_name"
+      echo
+    done
+
+  echo
+}
diff --git a/pw-apply b/pw-apply
index dafa36d..66a581e 100755
--- a/pw-apply
+++ b/pw-apply
@@ -3,6 +3,8 @@
 #
 # Copyright (C) 2019 Daniel Borkmann <daniel@iogearbox.net>
 
+source $(dirname $0)/lib.sh
+
 usage()
 {
   cat <<-EOF
@@ -20,15 +22,15 @@ mbox_from_url()
 
 mbox_from_series()
 {
-  git pw series show $1 -f simple 2> /dev/null | \
-    sed ''/Complete/s//$(printf "\033[1mComplete\033[0m")/''
-  git pw series download $1 mbox.i 2> /dev/null
+  srv=$(git config --get pw.server)
+  series_json=$(curl -s $srv/series/$1/)
+
+  pw_series_print_short "$series_json"
+  pw_series_download_mbox "$series_json" mbox.i
 }
 
 get_cover()
 {
-  srv=$(git config --get pw.server)
-  series_json=$(curl -s $srv/series/$1/)
   cover_json=$(echo "$series_json" | jq '.cover_letter')
   link=$(echo "$cover_json" | jq -r '.mbox' )
 
@@ -114,7 +116,7 @@ done
 body=
 author=XYZ
 if [ ! -z "$auto_branch" ]; then
-    get_cover $series
+    get_cover
     [ -z "$cover_msgid" ] && merge=
 fi