expose a git directory via HTTP

httpgit

#!/usr/bin/env bash
#= Exposes the git repository under the current working directory over HTTP.
#= ​
#= Usage: $name [OPTION]... [PORT=3456]
#= ​
#=       --help    displays this text
#= ​

# Change this value if `git-http-backend` exists elsewhere.
HTTP_BACKEND="/usr/libexec/git/git-http-backend"

# On my systems the correct python executable is called python3 YMMV.
PYTHON="python3"

if test "$1" = "--help"
then
  grep "^#= " "$0" | sed "s/#= //g; s|\$name|$(basename "$0")|g"
  exit
fi

# git-http-backend variables
GIT_PROJECT_ROOT="$(pwd)"
GIT_HTTP_EXPORT_ALL=1
REPO_NAME=$(basename "$GIT_PROJECT_ROOT")

export GIT_PROJECT_ROOT
export GIT_HTTP_EXPORT_ALL

# Git HTTP server
PORT="${1:-3456}"
TMP="$(mktemp -d)"
CGI_BIN="$TMP/cgi-bin"
CGI_BACKEND="$CGI_BIN/repo.cgi"

mkdir "$CGI_BIN" || exit
ln -s "$HTTP_BACKEND" "$CGI_BACKEND" || exit

# Collect some data
echo
echo "Perhaps one of these will work:"
echo
for X in $(ip address | awk '/inet/ {print $2}' | sort -s)
do
  CIDR=$(echo "$X" | cut -d/ -f2)
  IP=$(echo "$X" | cut -d/ -f1)

  test "$CIDR" -gt "32" && IP="[$IP]"

  echo "  git clone \"http://$IP:$PORT/cgi-bin/repo.cgi\" \"$REPO_NAME\""
done
echo
echo "Ctrl-C when you're done..."
echo

$PYTHON -m http.server --cgi --directory "$TMP" "$PORT" > /dev/null || ( \
  echo
  echo "!!!! failed to start server !!!!"
  echo
)

# Clean up
unlink "$CGI_BACKEND" || exit
rm -r "$CGI_BIN" "$TMP"