From 091b3a1a96adf2fe93f59ce86223a04699a36f17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=84min=20Baumeler?= <amin@indyfac.ch>
Date: Wed, 11 Mar 2026 22:17:07 +0100
Subject: [PATCH] initial commit

---
 .gitignore                      |   1 +
 README.md                       |  19 ++++
 scripts/build.sh                |  21 +++++
 src/awk/lastmessageinthread.awk |  49 ++++++++++
 src/awk/threadoverview.awk      |  33 +++++++
 src/main.sh                     | 158 ++++++++++++++++++++++++++++++++
 src/sh/awk.sh                   |  17 ++++
 src/sh/info.sh                  |  11 +++
 src/sh/theme.sh                 |  13 +++
 src/sh/tools.sh                 |  28 ++++++
 10 files changed, 350 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100755 scripts/build.sh
 create mode 100644 src/awk/lastmessageinthread.awk
 create mode 100644 src/awk/threadoverview.awk
 create mode 100755 src/main.sh
 create mode 100644 src/sh/awk.sh
 create mode 100644 src/sh/info.sh
 create mode 100644 src/sh/theme.sh
 create mode 100644 src/sh/tools.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e3dde46
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+nmf
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6cec1e7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,19 @@
+There's [not much](https://notmuchmail.org/) [fuzz](https://junegunn.github.io/fzf/) about emails.
+
+[Yousef Akbar](https://yousef.sh/) developed a lovely [notmuch plugin](https://github.com/yousefakbar/notmuch.nvim) for [neovim.](https://neovim.io/)
+But since lately I find myself preferring [vim](https://www.vim.org/) over neovim, i was left with two options:
+adapt the plugin to vim, or write a shell script instead.
+This application is built around the second route.
+This is a POSIX-compliant script with internal `awk` elements for handling your notmuch-organized emails.
+You are free to choose whatever editor you prefer for writing emails.
+
+
+Requirements and Installation
+------------------------------
+### Requirements
+This is a POSIX-compliant shell script with inline `awk` elements that makes calls to:
+- the command-line fuzzy finder [fzf](https://junegunn.github.io/fzf/),
+- the command-line email system [notmuch](https://notmuchmail.org/)
+
+### Installation
+Run `./scripts/build.sh`, then copy `nmf` to your preferred location, e.g., `~/.local/bin`, and make it executable.
diff --git a/scripts/build.sh b/scripts/build.sh
new file mode 100755
index 0000000..94583fd
--- /dev/null
+++ b/scripts/build.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+BOLD="\033[1m"
+GREEN="\033[0;32m"
+OFF="\033[m"
+NAME="nmf"
+SRC="./src/main.sh"
+
+tmpdir=$(mktemp -d)
+echo "🥚 ${GREEN}Internalize sourced files${OFF}"
+sed -E 's|\. "([^$].+)"$|cat src/\1|e' "$SRC" >"$tmpdir/1.sh"
+echo "🐔 ${GREEN}Internalize awk scripts${OFF}"
+sed -E 's|@@include (.+)$|cat src/\1|e' "$tmpdir/1.sh" >"$tmpdir/2.sh"
+echo "🥚 ${GREEN}Internalize awk libraries${OFF}"
+sed -E 's|@include "(.+)"$|cat src/\1|e' "$tmpdir/2.sh" >"$tmpdir/3.sh"
+echo "🐔 ${GREEN}Strip comments${OFF}"
+grep -v "^ *# " "$tmpdir/3.sh" | grep -v "^ *#$" >"$NAME"
+echo "🥚 ${GREEN}Make executable and cleanup${OFF}"
+chmod +x "$NAME"
+rm -rf "$tmpdir"
+echo "🍳 ${GREEN}Done:${OFF} Sucessfully built ${BOLD}${GREEN}$NAME${OFF}"
diff --git a/src/awk/lastmessageinthread.awk b/src/awk/lastmessageinthread.awk
new file mode 100644
index 0000000..b2a3780
--- /dev/null
+++ b/src/awk/lastmessageinthread.awk
@@ -0,0 +1,49 @@
+BEGIN {
+  RS = "\x0c"
+  FS = "\n"
+}
+
+/^message}/ {
+  mheader = header
+  mpart = part
+  mparts = parts
+  level = 0
+  multipart = ""
+  header = ""
+  part = ""
+  parts = ""
+}
+/^header{/ {
+  header = $0
+}
+/^part}/ {
+  level--
+}
+/^part{/ {
+  parts = sprintf("%s\n%"(2*level)"s%s", parts, "", substr($1, 7))
+  level++
+}
+# /^part{ ID: [[:digit:]]+, Content-type: multipart\/alternative/ {
+#   multipart = "alternative"
+# }
+# /^part{ ID: [[:digit:]]+, Content-type: multipart\/mixed/ {
+#   multipart = "mixed"
+# }
+/^part{ ID: [[:digit:]]+, Content-type: text\/plain/ {
+  part = $0
+}
+
+END {
+  split(mheader, a, "\n")
+  delete a[1]
+  # delete a[2]
+  for (line in a) {
+    print a[line]
+  }
+  split(mpart, a, "\n")
+  delete a[1]
+  for (line in a) {
+    print a[line]
+  }
+  print "Parts:"mparts
+}
diff --git a/src/awk/threadoverview.awk b/src/awk/threadoverview.awk
new file mode 100644
index 0000000..a1aec45
--- /dev/null
+++ b/src/awk/threadoverview.awk
@@ -0,0 +1,33 @@
+BEGIN {
+  RS = "\x0c"
+  FS = "\n"
+}
+
+# message{ id:eb93d845-6fc7-4181-9848-7411ed999b3c@indyfac.ch depth:0 match:1 excluded:0 filename:/home/amin/.email/indyfac/INBOX/cur/1773225033.821818_4.fredkin,U=4172:2,S
+
+# header{
+# lobo loco <loboloco@indyfac.ch> (Today 10:12) (inbox)
+
+/^message{/ {
+  id = ""
+  depth = -1
+  split($1, a, " ")
+  for (i in a) {
+    if (id && depth >= 0)
+      continue
+    if (substr(a[i], 1, 3) == "id:")
+      id = substr(a[i], 4)
+    else if (substr(a[i], 1, 6) == "depth:")
+      depth = substr(a[i], 7) + 0
+  }
+}
+/^header{/ {
+  subj = ""
+  for (i=3; i<=NF; i++) {
+    if (substr($i, 1, 9) == "Subject: ") {
+      subj = substr($i, 10)
+      break
+      }
+    }
+  printf "%s\t%s\t%"(2*depth)"s%s\n", id, subj, "", $2
+}
diff --git a/src/main.sh b/src/main.sh
new file mode 100755
index 0000000..2e40163
--- /dev/null
+++ b/src/main.sh
@@ -0,0 +1,158 @@
+#!/bin/sh
+
+set -eu
+
+# Application info
+. "sh/info.sh"
+
+# Theme
+. "sh/theme.sh"
+
+# awk scripts
+. "sh/awk.sh"
+
+# tools
+. "sh/tools.sh"
+
+__notmuch_search() {
+  $NOTMUCH search "$*" \
+    | sed "s/^thread:\([[:xdigit:]]\+\)\s\+\([^[]\+\)\s\+\[\([^]]\+\)\]\([^;]*\); \(.*\) (\([^(]*\))$/${COLDATE}\2${RESET}\t${COLCNTS}\3${RESET}\t${COLFROM}\4${RESET}\t${COLSUBJ}\5${RESET}\t${COLTAGS}\6${RESET}\t\1/" \
+    | column -s "$(printf '\t')" -t -l 3 -R 1,2
+}
+
+__notmuch_thread() {
+  $NOTMUCH show thread:"$1" \
+    | awk "$AWK_THREADOVERVIEW" \
+    | sed "s/^\(\S*\)\t\([^\t]*\)\t\(.*\) (\([^()]*\)) (\([^()]*\))$/${COLFROM}\3${RESET}\t${COLSUBJ}\2${RESET}\t${COLDATE}\4${RESET}\t${COLTAGS}\5${RESET}\t\1/"
+}
+
+__notmuch_list_tags() {
+  $NOTMUCH search --output=tags tag:/./
+}
+
+__notmuch_list_address() {
+  $NOTMUCH address '*'
+}
+
+if [ "${1:-}" = "--preview-thread" ]; then
+  shift
+  thread="$1"
+  $NOTMUCH show thread:$thread \
+    | awk "$AWK_LASTMESSAGEINTHREAD" \
+    | tail -n +2 \
+    | $CAT
+  exit
+fi
+
+if [ "${1:-}" = "--preview-message" ]; then
+  shift
+  messageid="$1"
+  $NOTMUCH show id:$messageid \
+    | awk "$AWK_LASTMESSAGEINTHREAD" \
+    | tail -n +2 \
+    | $CAT
+  exit
+fi
+
+# FZF default configs
+FZF_DEFAULT_PREVIEW_WINDOW="right,80,border-line,wrap-word"
+FZF_DEFAULT_THREAD_LINE="{1}  {3} ({4})"
+
+if [ "${1:-}" = "--show-thread" ]; then
+  shift
+  thread="$1"
+  res=$(__notmuch_thread "$thread" | fzf \
+    --raw \
+    --ansi \
+    --reverse \
+    --multi \
+    --delimiter="$(printf '\t')" \
+    --with-nth="$FZF_DEFAULT_THREAD_LINE" \
+    --bind="alt-s:change-with-nth({1}  {2} {3} ({4})|$FZF_DEFAULT_THREAD_LINE)" \
+    --accept-nth=5 \
+    --bind='alt-j:preview-down,alt-k:preview-up' \
+    --bind='page-up:preview-half-page-up,page-down:preview-half-page-down' \
+    --bind="enter:" \
+    --bind="ctrl-h,backward-eof:abort" \
+    --bind="alt-/:change-preview-window(right,90%,border-line,wrap-word|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --preview="$0 --preview-message {5}" \
+    --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" || true)
+  exit
+fi
+
+# Modes
+APPEND="append"
+NWSRCH="search"
+CMD_SEARCH_TAG="tag-"
+ADDRESS_TO="to-"
+ADDRESS_FROM="from-"
+CMD_SEARCH_ADDRESS="address-"
+
+while true; do
+  nmquery="${nmquery:-tag:inbox}"
+  cmd=$(__notmuch_search "$nmquery" | fzf \
+    --header="$nmquery" --footer="FOOTER" \
+    --ansi \
+    --tiebreak=index \
+    --reverse \
+    --multi \
+    --delimiter="$(printf '\t')" \
+    --with-nth="{1}  {2} ({3})" \
+    --bind="alt-t:print($CMD_SEARCH_TAG$NWSRCH)+accept" \
+    --bind="alt-T:print($CMD_SEARCH_TAG$APPEND)+accept" \
+    --bind="alt-s:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$NWSRCH)+accept" \
+    --bind="alt-S:print($CMD_SEARCH_ADDRESS$ADDRESS_FROM$APPEND)+accept" \
+    --bind="alt-r:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$NWSRCH)+accept" \
+    --bind="alt-R:print($CMD_SEARCH_ADDRESS$ADDRESS_TO$APPEND)+accept" \
+    --bind='alt-j:preview-down,alt-k:preview-up' \
+    --bind='page-up:preview-half-page-up,page-down:preview-half-page-down' \
+    --bind="enter,ctrl-l:execute:$0 --show-thread {4}" \
+    --bind="alt-/:change-preview-window(right,90%,border-line,wrap-word|$FZF_DEFAULT_PREVIEW_WINDOW)" \
+    --preview="$0 --preview-thread {4}" \
+    --preview-window="$FZF_DEFAULT_PREVIEW_WINDOW" | head -1 || true)
+  [ -n "$cmd" ] || exit 0
+  case "$cmd" in
+    $CMD_SEARCH_TAG*)
+      tag=$(__notmuch_list_tags | fzf \
+	--ansi \
+	--cycle \
+	--margin='20%' \
+	--bind='enter:accept-or-print-query' \
+	--border=double \
+	--border-label='Select tag' || true)
+      [ -n "$tag" ] || continue
+      [ "$cmd" = "$CMD_SEARCH_TAG$APPEND" ] && nmquery="$nmquery and tag:$tag" || nmquery="tag:$tag"
+      ;;
+    $CMD_SEARCH_ADDRESS*)
+      case "$cmd" in
+	*$ADDRESS_FROM*)
+	  label_text='Select sender'
+	  field='from'
+	  ;;
+	*)
+	  label_text='Select recipient'
+	  field='to'
+	  ;;
+      esac
+      address=$(__notmuch_list_address | fzf \
+	--ansi \
+	--tiebreak=index \
+	--cycle \
+	--margin='20%' \
+	--bind='enter:accept-or-print-query' \
+	--border=double \
+	--border-label="$label_text" || true)
+      [ -n "$address" ] || continue
+      case "$cmd" in
+	*$APPEND)
+	nmquery="$nmquery and $field:$address"
+	  ;;
+	*)
+	nmquery="$field:$address"
+	  ;;
+      esac
+      ;;
+    *)
+      ;;
+  esac
+done
diff --git a/src/sh/awk.sh b/src/sh/awk.sh
new file mode 100644
index 0000000..2d3b43f
--- /dev/null
+++ b/src/sh/awk.sh
@@ -0,0 +1,17 @@
+if [ ! "${AWK_LOADED:-}" ]; then
+  AWK_LASTMESSAGEINTHREAD=$(
+    cat <<'EOF'
+@@include awk/lastmessageinthread.awk
+EOF
+  )
+  export AWK_LASTMESSAGEINTHREAD
+
+  AWK_THREADOVERVIEW=$(
+    cat <<'EOF'
+@@include awk/threadoverview.awk
+EOF
+  )
+  export AWK_THREADOVERVIEW
+
+  export AWK_LOADED=1
+fi
diff --git a/src/sh/info.sh b/src/sh/info.sh
new file mode 100644
index 0000000..2b556c4
--- /dev/null
+++ b/src/sh/info.sh
@@ -0,0 +1,11 @@
+# Application information
+if [ ! "${INFO_LOADED:-}" ]; then
+  APP_NAME="nmf"
+  APP_VERSION="0.1"
+  APP_WEBSITE="https://git.indyfac.ch/amin/not-much-fuzz/"
+  WINDOW_TITLE="📨 $APP_NAME | not much fuzz"
+  export APP_NAME APP_VERSION APP_WEBSITE WINDOW_TITLE
+
+  export INFO_LOADED=1
+fi
+
diff --git a/src/sh/theme.sh b/src/sh/theme.sh
new file mode 100644
index 0000000..93ae6fb
--- /dev/null
+++ b/src/sh/theme.sh
@@ -0,0 +1,13 @@
+# Default theme
+if [ ! "${THEME_LOADED:-}" ]; then
+  COLDATE="$(printf '\033[38;5;195m')"
+  COLCNTS="$(printf '\033[38;5;244m')"
+  COLFROM="$(printf '\033[38;5;208m')"
+  COLSUBJ="$(printf '\033[38;5;179m\033[3m')"
+  COLTAGS="$(printf '\033[38;5;106m\033[2m')"
+  RESET="$(printf '\033[0m')"
+
+  export COLDATE COLCNTS COLFROM COLSUBJ COLTAGS
+
+  export THEME_LOADED=1
+fi
diff --git a/src/sh/tools.sh b/src/sh/tools.sh
new file mode 100644
index 0000000..118877b
--- /dev/null
+++ b/src/sh/tools.sh
@@ -0,0 +1,28 @@
+if [ ! "${TOOLS_LOADED:-}" ]; then
+  if command -v "fzf" >/dev/null; then
+    FZF="fzf --black --ansi --cycle --tiebreak=chunk,index"
+  else
+    err "Did not find the command-line fuzzy finder fzf."
+    exit 1
+  fi
+  export FZF
+
+  if command -v "notmuch" >/dev/null; then
+    NOTMUCH="notmuch"
+  else
+    err "Did not find the command-line email system notmuch."
+    exit 1
+  fi
+  export NOTMUCH
+
+  if command -v "bat" >/dev/null; then
+    CAT="bat"
+  elif command -v "batcat" >/dev/null; then
+    CAT="batcat"
+  fi
+  CAT=${CAT:+$CAT -l email --style=plain --color=always --wrap}
+  CAT=${CAT:-cat}
+  export CAT
+
+  export TOOLS_LOADED=1
+fi