Update skel, common functions.

dotfiles/commonrc.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+# shellcheck disable=SC1090
+
+# common functions for use in shell scripts
+
+find_first() {
+  while [ "$#" -gt 0 ]; do
+    if test -e "${1}" ; then
+      echo "${1}"
+      return 0
+    fi
+    shift
+  done
+  return 1
+}
+
+have_command() {
+  command -v "$1" >/dev/null 2>&1
+}
+
+# Helper function: Returns 0 if the directory is in PATH, 1 otherwise
+path_contains() {
+  case ":${PATH}:" in
+    *:"$1":*) return 0 ;;
+    *)        return 1 ;;
+  esac
+}
+
+# Prepend a directory to PATH if it's not already there
+path_prepend() {
+  if [ -d "$1" ] && ! path_contains "$1"; then
+    PATH="$1:${PATH}"
+  fi
+}
+
+# Append a directory to PATH if it's not already there
+path_append() {
+  if [ -d "$1" ] && ! path_contains "$1"; then
+    PATH="${PATH}:$1"
+  fi
+}
+
+source_first_existing() {
+  _sfe_script="$(find_first "$@")"
+  _sfe_status=$?
+
+  if [ "$_sfe_status" -eq 0 ]; then
+    . "$_sfe_script"
+    # Clean up our temporary variables before returning success
+    unset -v _sfe_script _sfe_status
+    return 0
+  fi
+
+  # Clean up our temporary variables before returning failure
+  unset -v _sfe_script _sfe_status
+  return 1
+}
+
+source_if_existing() {
+  if [ -f "$1" ]; then
+    . "$1"
+  fi
+}

dotfiles/zshrc

@@ -59,6 +59,8 @@ DIRSTACKSIZE=16
 
 export OS="$(uname 2>/dev/null || echo "Unknown")"
 
+source ~/.commonrc.sh
+
 # Set terminal title
 case $TERM in
   # Only set the title for terminals that are likely to support it
@@ -163,25 +165,6 @@ bindkey '^r' history-incremental-search-backward
 # delete really deletes
 bindkey "^[[3~" delete-char
 
-source_if_existing() {
-  [[ -f "${1}" ]] && source "${1}"
-}
-
-source_first_existing() {
-  while (($#)); do
-    if test -e "${1}" ; then
-      source "${1}"
-      return
-    fi
-    shift
-  done
-  return 1
-}
-
-have_command() {
-  command -v "${1}" &>/dev/null
-}
-
 if test -d ${HOME}/.local/bin ; then
   export PATH="${HOME}/.local/bin:${PATH}"
 fi

dotfiles/zshrc.d/functions.zsh

@@ -2,31 +2,18 @@ function dumpenv {
   if [ "$(uname)" = "Linux" ]; then
     tr '\0' '\n' < /proc/${1}/environ
   elif [ "$(uname)" = "Darwin" ]; then
-    # macOS doesn't have /proc, use ps instead. 
+    # macOS doesn't have /proc, use ps instead.
     # Note: this may truncate if environment is very large.
     ps -p ${1} -wwwe -o command= | tr ' ' '\n' | grep '='
   fi
 }
 
-if test -x "/sbin/starship" ; then
+_STARSHIP_PATH="$(find_first "$(command -v starship)" /sbin/starship "${HOME}/tools/starship/starship" "${HOME}/.local/bin/starship" /usr/local/bin/starship)"
-  _STARSHIP_PATH="/sbin/starship"
+if test -n "$_STARSHIP_PATH" ; then
   function starship_prompt {
-    eval "$(/sbin/starship init zsh)"
+    eval "$($_STARSHIP_PATH init zsh)"
-  }
-elif test -x "${HOME}/tools/starship/starship" ; then
-  _STARSHIP_PATH="${HOME}/tools/starship/starship"
-  function starship_prompt {
-    eval "$($HOME/tools/starship/starship init zsh)"
   }
 fi
-if test -f ${HOME}/.zprompt ; then
-  if test "$(cat ${HOME}/.zprompt)" = "starship" ; then
-    if test -n "${_STARSHIP_PATH:-}" ; then
-      eval "$(${_STARSHIP_PATH} init zsh)"
-    fi
-  fi
-fi
-unset _STARSHIP_PATH
 
 function hashall {
   tee >(md5sum) | tee >(sha1sum) | sha256sum

install.sh

@@ -7,14 +7,30 @@ set -o errexit
 set -o shwordsplit 2>/dev/null || true  # Make zsh behave like bash
 
 HOME=${HOME:-$(cd ~ && pwd)}
-
+LOCAL_BIN="${HOME}/.local/bin"
-
+STARSHIP_INSTALL_HASH="52c64f14a558034ebeb1907ea9364e802b32474576fd3e68265f73bc33cc8fbb"
 
 have_command() {
   command -v "${1}" >/dev/null 2>&1
 }
 
+sudo_group() {
+  if [[ "$(id -u)" -eq 0 ]] ; then
+    return 0
+  fi
+  have_command sudo && ( id -Gn | grep -q '\bsudo\b' )
+}
 
+maybe_sudo() {
+  if [[ "$(id -u)" -eq 0 ]] ; then
+    "$@"
+    return
+  fi
+  if ! have_command sudo ; then
+    return 1
+  fi
+  sudo "$@"
+}
 
 link_directory_contents() {
   local SRCDIR="${1}"
@@ -176,6 +192,41 @@ install_dotfiles() {
   fi
 }
 
+install_starship() {
+  if have_command starship ; then return 0 ; fi
+  if have_command apt-get && sudo_group ; then
+    if maybe_sudo apt-get install -qy starship ; then
+      return 0
+    fi
+    echo "apt-get install starship failed, installing locally" >&2
+  fi
+  local tmpd
+  tmpd="$(mktemp -d tmp.starship.XXXXXX)"
+  local install_path="${tmpd}/install.sh"
+  if have_command curl ; then
+    curl -sSL --show-error -o "${install_path}" https://starship.rs/install.sh
+  elif have_command wget ; then
+    wget -q -O "${install_path}" --https-only https://starship.rs/install.sh
+  else
+    echo "No curl or wget available!!" >&2
+    return 1
+  fi
+  local dl_hash
+  dl_hash="$(sha256sum "${install_path}" | awk '{print $1}')"
+  if [[ "$dl_hash" != "${STARSHIP_INSTALL_HASH}" ]] ; then
+    echo "Hash check failed!!" >&2
+    echo "Expected: ${STARSHIP_INSTALL_HASH}, got ${dl_hash} on ${install_path}" >&2
+    return 1
+  fi
+  if sudo_group ; then
+    if maybe_sudo sh "${install_path}" ; then
+      return 0
+    fi
+    echo "root installation failed, falling back to user-local" >&2
+  fi
+  sh "${install_path}" -b "${LOCAL_BIN}"
+}
+
 install_main() {
   if [[ -d "${BASEDIR}/.git" ]] && have_command git ; then
     if [[ -z "$(git -C "${BASEDIR}" status --porcelain)" ]]; then
@@ -185,6 +236,8 @@ install_main() {
     fi
   fi
   [[ "$MINIMAL" = 1 ]] || {
+    mkdir -p "${LOCAL_BIN}"
+    install_starship
 
     # Install vim-plug if not already present
     local VIM_PLUG_URL="https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim"
@@ -199,22 +252,22 @@ install_main() {
       else
         echo "Error: curl not found. Cannot install vim-plug." >&2
       fi
-        fi
+    fi
 
-        # Install TPM (Tmux Plugin Manager) if not already present
+    # Install TPM (Tmux Plugin Manager) if not already present
-        local TPM_DIR="${HOME}/.tmux/plugins/tpm"
+    local TPM_DIR="${HOME}/.tmux/plugins/tpm"
-        local TPM_REPO="https://github.com/tmux-plugins/tpm"
+    local TPM_REPO="https://github.com/tmux-plugins/tpm"
 
-        if [[ ! -d "${TPM_DIR}" ]]; then
+    if [[ ! -d "${TPM_DIR}" ]]; then
-          verbose "Installing TPM (Tmux Plugin Manager)..."
+      verbose "Installing TPM (Tmux Plugin Manager)..."
-          if have_command git; then
+      if have_command git; then
-            git clone --depth 1 "${TPM_REPO}" "${TPM_DIR}"
+        git clone --depth 1 "${TPM_REPO}" "${TPM_DIR}"
-          else
+      else
-            echo "Error: git not found. Cannot install TPM." >&2
+        echo "Error: git not found. Cannot install TPM." >&2
-          fi
+      fi
-        fi
+    fi
 
-        # try to update dotfile overlays
+    # try to update dotfile overlays
     if [[ -d "${BASEDIR}/dotfile_overlays" ]] ; then
       for dotfiledir in "${BASEDIR}/dotfile_overlays/"* ; do
         if [[ -d "${dotfiledir}/.git" ]] ; then