scripts/git/git-install-tools.sh

   1 #!/usr/bin/env bash
   2
   3 SCRIPT_NAME=$(basename "$0")
   4 SCRIPTS_DIR=$(dirname "$0")
   5
   6 TOOL_NAMES=(push-all pull-all merge-forward list-tor-branches resquash)
   7
   8 function usage()
   9 {
  10     echo "$SCRIPT_NAME [-h] [-n] [-v] [-f] <all|hooks|tools|aliases>"
  11     echo
  12     echo "  flags:"
  13     echo "    -h: show this help text"
  14     echo "    -n: dry-run"
  15     echo "    -v: verbose mode"
  16     echo "    -f: force-install even if \$TOR_DEVTOOLS_DIR looks fishy"
  17     echo
  18     echo "  modes:"
  19     echo "    hooks:   install git hooks in this repository."
  20     echo "    tools:   install scripts in \$TOR_DEVTOOLS_DIR"
  21     echo "    aliases: set up global git aliases for git tools in \$TOR_DEVTOOLS_DIR"
  22     echo "    all:     all of the above."
  23 }
  24
  25 INSTALL_HOOKS=0
  26 INSTALL_TOOLS=0
  27 INSTALL_ALIASES=0
  28
  29 DRY_RUN=0
  30 VERBOSE=0
  31 FORCE=0
  32
  33 while getopts "hnfv" opt; do
  34     case "$opt" in
  35         h) usage
  36            exit 0
  37            ;;
  38         n) DRY_RUN=1
  39            ;;
  40         v) VERBOSE=1
  41            ;;
  42         f) FORCE=1
  43            ;;
  44         *) echo
  45            usage
  46            exit 1
  47            ;;
  48     esac
  49 done
  50
  51 for item in "${@:$OPTIND}"; do
  52     case "$item" in
  53         hooks) INSTALL_HOOKS=1
  54                ;;
  55         tools) INSTALL_TOOLS=1
  56                ;;
  57         aliases) INSTALL_ALIASES=1
  58                  ;;
  59         all) INSTALL_HOOKS=1
  60              INSTALL_TOOLS=1
  61              INSTALL_ALIASES=1
  62              ;;
  63         *) echo "Unrecognized mode '$item'"
  64            usage
  65            exit 1
  66            ;;
  67     esac
  68 done
  69
  70 if [[ $VERBOSE = 1 ]]; then
  71     function note()
  72     {
  73         echo "$@"
  74     }
  75 else
  76     function note()
  77     {
  78         true
  79     }
  80 fi
  81
  82 function fail()
  83 {
  84     echo "$@" 1>&2
  85     exit 1
  86 }
  87
  88 if [[ $INSTALL_HOOKS = 0 && $INSTALL_TOOLS = 0 && $INSTALL_ALIASES = 0 ]]; then
  89    echo "Nothing to do. Try $SCRIPT_NAME -h for a list of commands."
  90    exit 0
  91 fi
  92
  93 if [[ $INSTALL_TOOLS = 1 || $INSTALL_ALIASES = 1 ]]; then
  94     if [[ -z "$TOR_DEVTOOLS_DIR" ]] ; then
  95         fail "\$TOR_DEVTOOLS_DIR was not set."
  96     fi
  97     note "Checking whether \$TOR_DEVTOOLS_DIR ($TOR_DEVTOOLS_DIR) is a git repo..."
  98     GITDIR=$(cd "$TOR_DEVTOOLS_DIR" && git rev-parse --git-dir 2>/dev/null)
  99     note "GITDIR is $GITDIR"
 100     if [[ -n "$GITDIR" ]] ; then
 101         cat <<EOF
 102 You have asked me to install to \$TOR_DEVTOOLS_DIR ($TOR_DEVTOOLS_DIR).
 103 That is inside a git repository, so you might not want to install there:
 104 depending on what you pull or push, you might find yourself giving somebody
 105 else write access to your scripts.  I think you should just use ~/bin or
 106 something.
 107 EOF
 108
 109         echo
 110         if [[ "$FORCE" = 1 ]] ; then
 111             echo "I will install anyway, since you said '-f'."
 112         else
 113             echo "I will not install. You can tell me -f if you are really sure."
 114             exit 1
 115         fi
 116     else
 117         note "It was not."
 118     fi
 119 fi
 120
 121 if [[ ! -d "$SCRIPTS_DIR" || ! -e "$SCRIPTS_DIR/git-push-all.sh" ]]; then
 122     fail "Couldn't find scripts in '$SCRIPTS_DIR'"
 123 fi
 124
 125 if [[ $DRY_RUN = 1 ]]; then
 126     echo "** DRY RUN **"
 127     RUN="echo >>"
 128 else
 129     RUN=
 130 fi
 131
 132 set -e
 133
 134 # ======================================================================
 135 if [[ $INSTALL_HOOKS = 1 ]]; then
 136        HOOKS_DIR=$(git rev-parse --git-path hooks)
 137
 138        note "Looking for hooks directory"
 139
 140        if [[ -z "$HOOKS_DIR" || ! -d "$HOOKS_DIR" ]]; then
 141            fail "Couldn't find git hooks directory."
 142        fi
 143
 144        note "Found hooks directory in $HOOKS_DIR"
 145
 146        note "Installing hooks"
 147        for fn in "$SCRIPTS_DIR"/*.git-hook; do
 148            name=$(basename "$fn")
 149            $RUN install -b "$fn" "${HOOKS_DIR}/${name%.git-hook}"
 150        done
 151 fi
 152
 153
 154 # ======================================================================
 155 if [[ $INSTALL_TOOLS = 1 ]]; then
 156     note "Installing tools."
 157     note "Looking for \$TOR_DEVTOOLS_DIR ($TOR_DEVTOOLS_DIR)"
 158
 159     if [[ ! -d "$TOR_DEVTOOLS_DIR" ]]; then
 160         note "Creating directory"
 161         $RUN mkdir -p "$TOR_DEVTOOLS_DIR"
 162     fi
 163
 164     note "Copying scripts"
 165     for tool in "${TOOL_NAMES[@]}"; do
 166         $RUN install -b "${SCRIPTS_DIR}/git-${tool}.sh" "${TOR_DEVTOOLS_DIR}/"
 167     done
 168 fi
 169
 170 # ======================================================================
 171 if [[ $INSTALL_ALIASES = 1 ]]; then
 172     note "Installing aliases."
 173     note "Looking for \$TOR_DEVTOOLS_DIR ($TOR_DEVTOOLS_DIR)"
 174
 175     note "Checking for ${TOR_DEVTOOLS_DIR}/git-push-all.sh"
 176     if [[ ! -x "${TOR_DEVTOOLS_DIR}/git-push-all.sh" ]]; then
 177         if [[ $DRY_RUN = 0 ]]; then
 178             fail "Could not find scripts in \$TOR_DEVTOOLS_DIR"
 179         fi
 180     fi
 181
 182     note "Setting aliases"
 183     for tool in "${TOOL_NAMES[@]}"; do
 184         $RUN git config --global "alias.$tool" \!"${TOR_DEVTOOLS_DIR}/git-${tool}.sh"
 185     done
 186
 187 fi
 188
 189 note Done.