Initial commit

bootstrap.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+
+SCRIPT=$(basename $0)
+SCRIPT_DIR=$(cd $(dirname $0) && pwd)
+SOURCE_DIR=$SCRIPT_DIR/config
+BIN_DIR=$SCRIPT_DIR/bin
+TARGET_DIR=$HOME
+
+MANIFEST=$SCRIPT_DIR/manifest
+
+args=("$@")
+dryrun=false
+
+function green {
+  echo "\033[32m$1\033[0m"
+} 
+
+function yellow {
+  echo "\033[33m$1\033[0m"
+}
+
+function red {
+  echo "\033[31m$1\033[0m"
+}
+
+# Sanely and safely creates symlinks.
+# Arguments: $1 = source, $2 = target
+function create_symlink {
+  source=$1
+  target=$2
+  if [ -h $target ]; then
+    echo -e $(yellow "Existing symlink: $target")
+  elif [ ! -e $source ]; then
+    echo -e $(red "Error - source does not exist: $source")
+    echo -e "Correct path or remove from $MANIFEST to continue."
+    exit
+  elif [ -e $target ]; then
+    echo -e $(red "Error - regular file at target location $target exists")
+    echo -e $(red "Remove the obstruction and re-run this script to continue.")
+    exit
+  else
+    echo -e $(green "Creating symlink: $target")
+
+    if ! $dryrun; then
+      ln -s $source $target
+    fi
+  fi
+}
+
+# Sanely removes symlinks.
+# Arguments: $1 = target
+function rm_symlink {
+  target=$1
+
+  if [ -h $target ]; then
+    echo -e $(green "Removing symlink: $target")
+
+    if ! $dryrun; then
+      rm $target
+    fi
+  elif [ -e $target ]; then
+    echo -e $(red "Warning - Regular file at target location: $target")
+  else
+    echo -e $(yellow "Nothing to do for: $target")
+  fi
+}
+
+# 'Installs' the symlinks to the user's home directory.
+function install {
+  echo "Installing dotfile symlinks..."
+  while read path; do
+    # If dotfile lives in subdirectory, check that it exists/create it
+    target_subdir=$TARGET_DIR/.$(dirname $path)
+    if [ ! -d $target_subdir ] && ! $dryrun; then
+      mkdir -p $target_subdir
+    fi
+    create_symlink $SOURCE_DIR/$path $TARGET_DIR/.$path
+  done < $MANIFEST
+
+  # gnupg permissions
+  #echo -e $(yellow "Setting permissions to 0600 for gpg.conf..")
+  #chmod 700 ~/.gnupg
+
+  echo "Installing binary symlinks..."
+  for file in $(ls $BIN_DIR); do
+    # Check that bin directory exists/create it
+    if [ ! -d $TARGET_DIR/bin/ ] && ! $dryrun; then
+      mkdir $TARGET_DIR/bin/
+    fi
+    create_symlink $BIN_DIR/$file $TARGET_DIR/bin/$file
+  done
+
+  echo "Initializing git submodules..."
+  if ! $dryrun; then
+    cd $SCRIPT_DIR
+    git submodule update --init --recursive
+  fi
+  echo "Done"
+
+  echo "Tightening permissions on \$HOME..."
+  if ! $dryrun; then
+    chmod o-rx $HOME
+  fi
+  echo "Done"
+}
+
+# Checks for symlinks this script might have created and cleans them up.
+function uninstall {
+  echo "Uninstalling dotfile symlinks..."
+  while read path; do
+    rm_symlink $TARGET_DIR/.$path
+  done < manifest
+
+  echo "Uninstalling binary symlinks..."
+  for file in $(ls $BIN_DIR); do
+    rm_symlink $TARGET_DIR/bin/$file
+  done
+  echo "Done"
+}
+
+function usage {
+  echo "Usage: $SCRIPT [<command>] [-h|--help] [-d|--dry-run] [-s|--sandbox]"
+  echo "Where <command> is 'install', or 'uninstall'"
+  exit 0
+}
+
+# Parse flags
+for (( i = ${#args[@]} - 1; i >= 0; i-- )); do
+  case ${args[i]} in
+    -d | --dry-run)
+      echo "(DRY RUN: No changes will be made)"
+      dryrun=true
+      unset args[i];;
+    -s | --sandbox)
+      echo "(SANDBOX: Symlinking in sandbox folder)"
+      TARGET_DIR=$SCRIPT_DIR/sandbox
+      if [ ! -d $TARGET_DIR ]; then
+        mkdir $TARGET_DIR
+      fi
+      unset args[i];;
+    -h | --help)
+      usage
+      unset args[i];;
+    -*)
+      echo "Unrecognized option: ${args[i]}"
+      usage
+      unset args[i];;
+  esac
+done
+
+# Check number of arguments
+if [ ${#args[@]} -gt 1 ]; then
+  usage
+fi
+
+# Script start
+case ${args[0]} in
+  ''         ) install;;
+  'install'  ) install;;
+  'uninstall') uninstall;;
+  *          ) usage;;
+esac