annotate contrib/git-viz/hg-viz @ 4198:9e3121017fb2

Optimize return value of util._matcher for common command line case

This will trigger every time somebody runs something like "hg diff"
or "hg status" without any arguments.

The important part here is returning util.always as the match function,
which is a much simpler (and faster) function than the usual return
value, and allows other code to just skip the filtering if it knows
all files will match.

#!/bin/sh

set -e

if test x"$1" != x ; then
  cd $1
fi

if [ ! -d ".hg" ]; then
    echo "${1:-.} is not a mercurial repository" 1>&2
    echo "Aborting" 1>&2
    exit 1
fi
if [ ! -d ".git" ]; then
    mkdir -v ".git"
fi
if [ -e ".git/HEAD" ]; then
    if [ ! -e ".git/HEAD.hg-viz-save" ]; then
        mv -v ".git/HEAD" ".git/HEAD.hg-viz-save"
    else
        rm -vf ".git/HEAD"
    fi
fi
hg history | head -1 | awk -F: '{print $3}' > .git/HEAD
git-viz