Add img2pdf script

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.git_changerelease.yaml

@@ -12,11 +12,11 @@ ignore_messages:
 # Every commit message matching one of the regular expressions defined
 # in here will cause a patch-version increase (1.0.0 -> 1.0.1).
 match_patch:
-  - "^CI"
+  - "\[CI\]"
-  - "^[dD]ep"
+  - "[dD]ep:"
-  - "^[fF]ix"
+  - "[fF]ix:"
-  - "^[lL]int"
+  - "[lL]int:"
-  - "^[rR]efactor"
+  - "[rR]efactor:"
 
 # Every commit message matching one of the regular expressions defined
 # in here will cause a major-version increase (1.0.0 -> 2.0.0).

bin/img2pdf

@@ -0,0 +1,43 @@
+#!/usr/bin/env zsh
+set -euo pipefail
+
+source ~/bin/script_framework.sh
+
+usage="$(basename $0) [-d DPI] [-f] [-h] [-l] <outfile.pdf> <...infile.jpg|png|...>"
+
+A4H=11.7 # inch
+A4W=8.3  # inch
+DPI=150
+
+h=${A4H}
+w=${A4W}
+scalearg=""
+
+while getopts "d:fhl" opt; do
+  case "${opt}" in
+  d) DPI=${OPTARG} ;;
+  f) scalearg="^" ;;
+  h) fatal "${usage}" ;;
+  l)
+    h=${A4W}
+    w=${A4H}
+    ;;
+  esac
+done
+
+shift $((OPTIND - 1))
+
+outfile=${1:-}
+[[ -n $outfile ]] || fatal "${usage}"
+shift
+
+exec convert "$@" \
+  -compress jpeg \
+  -resize $((w * DPI))x$((h * DPI))${scalearg} \
+  -gravity center \
+  -extent $((w * DPI))x$((h * DPI)) \
+  -units PixelsPerInch \
+  -density ${DPI} \
+  "${outfile}"
+
+# vim: set ft=sh :