hgeditor

import-checker: force 'fcntl', 'grp', 'pwd', and 'termios' to stdlib modules

These are Unix only, and caused these additional warnings on Windows if they
aren't hardcoded as stdlib:

  mercurial/posix.py mixed imports
     stdlib:    errno, getpass, os, socket, stat, sys, tempfile
     relative:  grp, pwd, unicodedata
  mercurial/posix.py mixed imports
     stdlib:    re
     relative:  fcntl
  mercurial/posix.py mixed imports
     stdlib:    array
     relative:  termios

Additionally, this was missing on Windows:

  mercurial/crecord.py mixed imports
     stdlib:    fcntl, termios
     relative:  curses


https://docs.python.org/2/library/fcntl.html
https://docs.python.org/2/library/grp.html
https://docs.python.org/2/library/pwd.html
https://docs.python.org/2/library/termios.html

#!/bin/sh
#
# This is an example of using HGEDITOR to create of diff to review the
# changes while commiting.

# If you want to pass your favourite editor some other parameters
# only for Mercurial, modify this:
case "${EDITOR}" in
    "")
        EDITOR="vi"
        ;;
    emacs)
        EDITOR="$EDITOR -nw"
        ;;
    gvim|vim)
        EDITOR="$EDITOR -f -o"
        ;;
esac


HGTMP=""
cleanup_exit() {
    rm -rf "$HGTMP"
}

# Remove temporary files even if we get interrupted
trap "cleanup_exit" 0 # normal exit
trap "exit 255" HUP INT QUIT ABRT TERM

HGTMP=$(mktemp -d ${TMPDIR-/tmp}/hgeditor.XXXXXX)
[ x$HGTMP != x -a -d $HGTMP ] || {
  echo "Could not create temporary directory! Exiting." 1>&2
  exit 1
}

(
    grep '^HG: changed' "$1" | cut -b 13- | while read changed; do
        "$HG" diff "$changed" >> "$HGTMP/diff"
    done
)

cat "$1" > "$HGTMP/msg"

MD5=$(which md5sum 2>/dev/null) || \
    MD5=$(which md5 2>/dev/null)
[ -x "${MD5}" ] && CHECKSUM=`${MD5} "$HGTMP/msg"`
if [ -s "$HGTMP/diff" ]; then
    $EDITOR "$HGTMP/msg" "$HGTMP/diff" || exit $?
else
    $EDITOR "$HGTMP/msg" || exit $?
fi
[ -x "${MD5}" ] && (echo "$CHECKSUM" | ${MD5} -c >/dev/null 2>&1 && exit 13)

mv "$HGTMP/msg" "$1"

exit $?