Create lagnoda.zsh-theme

lagnoda.zsh-theme

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+#!/usr/bin/env zsh
+
+# Author: Jubyer Ahmed Shezan <jashezan@gmail.com> 
+# Author Github: https://github.com/jashezan
+# lagnoda Theme - https://github.com/jashezan/lagnoda
+# A theme for ZSH inspired from agnoster and lambda
+#
+# # README
+#
+# In addition, I recommend the
+# [Solarized theme](https://github.com/altercation/solarized/) and, if you're
+# using it on Mac OS X, [iTerm 2](https://iterm2.com/) over Terminal.app -
+# it has significantly better color fidelity.
+#
+# If using with "light" variant of the Solarized color schema, set
+# SOLARIZED_THEME variable to "light". If you don't specify, we'll assume
+# you're using the "dark" variant.
+#
+# # Goals
+#
+# The aim of this theme is to only show you *relevant* information. Like most
+# prompts, it will only show git information when in a git working directory.
+# However, it goes a step further: everything from the current user and
+# hostname to whether the last call exited with an error to whether background
+# jobs are running in this shell will all be displayed automatically when
+# appropriate.
+
+### Segment drawing
+# A few utility functions to make it easy and re-usable to draw segmented prompts
+
+case ${SOLARIZED_THEME:-dark} in
+    light) CURRENT_FG='white';;
+    *)     CURRENT_FG='black';;
+esac
+
+# Begin a segment
+# Takes one arguments, foreground. This can be omitted,
+# rendering default foreground.
+prompt_segment() {
+  local fg
+  [[ -n $1 ]] && fg="%F{$1}" || fg="%f"
+  echo -n "%{$fg%} "
+  [[ -n $2 ]] && echo -n $2
+}
+
+function prompt_toon {
+    # echo -n ""
+    echo -n "%{$fg[magenta]%}λ"
+}
+
+# End the prompt, closing any open segments
+prompt_end() {
+  echo -n "%{%k%}"
+  echo -n "%{%f%}"
+}
+
+### Prompt components
+# Each component will draw itself, and hide itself if no information needs to be shown
+
+# Context: user@hostname (who am I and where am I)
+prompt_context() {
+  if [[ "$USERNAME" != "$DEFAULT_USER" || -n "$SSH_CLIENT" ]]; then
+    prompt_segment white "%F{3}%n%f%F{0}@%f%F{3}%m%f"
+  fi
+}
+
+# Git: branch/detached head, dirty status
+prompt_git() {
+  (( $+commands[git] )) || return
+  if [[ "$(git config --get oh-my-zsh.hide-status 2>/dev/null)" = 1 ]]; then
+    return
+  fi
+  local PL_BRANCH_CHAR
+  () {
+    local LC_ALL="" LC_CTYPE="en_US.UTF-8"
+    PL_BRANCH_CHAR=$'\ue0a0'         # 
+  }
+  local ref dirty mode repo_path
+
+   if [[ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]]; then
+    repo_path=$(git rev-parse --git-dir 2>/dev/null)
+    dirty=$(parse_git_dirty)
+    ref=$(git symbolic-ref HEAD 2> /dev/null) || \
+    ref="◈ $(git describe --exact-match --tags HEAD 2> /dev/null)" || \
+    ref="➦ $(git rev-parse --short HEAD 2> /dev/null)"
+    if [[ -n $dirty ]]; then
+      prompt_segment yellow
+    else
+      prompt_segment green
+    fi
+
+    local ahead behind
+    ahead=$(git log --oneline @{upstream}.. 2>/dev/null)
+    behind=$(git log --oneline ..@{upstream} 2>/dev/null)
+    if [[ -n "$ahead" ]] && [[ -n "$behind" ]]; then
+      PL_BRANCH_CHAR=$'\u21c5'
+    elif [[ -n "$ahead" ]]; then
+      PL_BRANCH_CHAR=$'\u21b1'
+    elif [[ -n "$behind" ]]; then
+      PL_BRANCH_CHAR=$'\u21b0'
+    fi
+
+    if [[ -e "${repo_path}/BISECT_LOG" ]]; then
+      mode=" <B>"
+    elif [[ -e "${repo_path}/MERGE_HEAD" ]]; then
+      mode=" >M<"
+    elif [[ -e "${repo_path}/rebase" || -e "${repo_path}/rebase-apply" || -e "${repo_path}/rebase-merge" || -e "${repo_path}/../.dotest" ]]; then
+      mode=" >R>"
+    fi
+
+    setopt promptsubst
+    autoload -Uz vcs_info
+
+    zstyle ':vcs_info:*' enable git
+    zstyle ':vcs_info:*' get-revision true
+    zstyle ':vcs_info:*' check-for-changes true
+    zstyle ':vcs_info:*' stagedstr '✚'
+    zstyle ':vcs_info:*' unstagedstr '±'
+    zstyle ':vcs_info:*' formats ' %u%c'
+    zstyle ':vcs_info:*' actionformats ' %u%c'
+    vcs_info
+    echo -n "${${ref:gs/%/%%}/refs\/heads\//$PL_BRANCH_CHAR }${vcs_info_msg_0_%% }${mode}"
+  fi
+}
+
+prompt_bzr() {
+  (( $+commands[bzr] )) || return
+
+  # Test if bzr repository in directory hierarchy
+  local dir="$PWD"
+  while [[ ! -d "$dir/.bzr" ]]; do
+    [[ "$dir" = "/" ]] && return
+    dir="${dir:h}"
+  done
+
+  local bzr_status status_mod status_all revision
+  if bzr_status=$(bzr status 2>&1); then
+    status_mod=$(echo -n "$bzr_status" | head -n1 | grep "modified" | wc -m)
+    status_all=$(echo -n "$bzr_status" | head -n1 | wc -m)
+    revision=${$(bzr log -r-1 --log-format line | cut -d: -f1):gs/%/%%}
+    if [[ $status_mod -gt 0 ]] ; then
+      prompt_segment yellow "bzr@$revision ✚"
+    else
+      if [[ $status_all -gt 0 ]] ; then
+        prompt_segment yellow "bzr@$revision"
+      else
+        prompt_segment green "bzr@$revision"
+      fi
+    fi
+  fi
+}
+
+prompt_hg() {
+  (( $+commands[hg] )) || return
+  local rev st branch
+  if $(hg id >/dev/null 2>&1); then
+    if $(hg prompt >/dev/null 2>&1); then
+      if [[ $(hg prompt "{status|unknown}") = "?" ]]; then
+        # if files are not added
+        prompt_segment red
+        st='±'
+      elif [[ -n $(hg prompt "{status|modified}") ]]; then
+        # if any modification
+        prompt_segment yellow
+        st='±'
+      else
+        # if working copy is clean
+        prompt_segment green
+      fi
+      echo -n ${$(hg prompt "☿ {rev}@{branch}"):gs/%/%%} $st
+    else
+      st=""
+      rev=$(hg id -n 2>/dev/null | sed 's/[^-0-9]//g')
+      branch=$(hg id -b 2>/dev/null)
+      if `hg st | grep -q "^\?"`; then
+        prompt_segment red
+        st='±'
+      elif `hg st | grep -q "^[MA]"`; then
+        prompt_segment yellow
+        st='±'
+      else
+        prompt_segment green
+      fi
+      echo -n "☿ ${rev:gs/%/%%}@${branch:gs/%/%%}" $st
+    fi
+  fi
+}
+
+# Dir: current working directory
+prompt_dir() {
+  # local dir_name='%~'
+  local dir_name='%{$fg_bold[yellow]%}%3~'
+  prompt_segment blue "[${${dir_name}: -3}]"
+}
+
+# Virtualenv: current working virtualenv
+prompt_virtualenv() {
+  if [[ -n "$VIRTUAL_ENV" && -n "$VIRTUAL_ENV_DISABLE_PROMPT" ]]; then
+    prompt_segment blue "(${VIRTUAL_ENV:t:gs/%/%%})"
+  fi
+}
+
+# Status:
+# - was there an error
+# - am I root
+# - are there background jobs?
+prompt_status() {
+  local -a symbols
+
+  [[ $RETVAL -ne 0 ]] && symbols+="%{%F{red}%}✘ "
+  [[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}⚡ "
+  [[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}⚙ "
+
+  [[ -n "$symbols" ]] && prompt_segment black "$symbols "
+}
+
+#AWS Profile:
+# - display current AWS_PROFILE name
+# - displays yellow if profile name contains 'production' or
+#   ends in '-prod'
+# - displays green otherwise
+prompt_aws() {
+  [[ -z "$AWS_PROFILE" || "$SHOW_AWS_PROMPT" = false ]] && return
+  case "$AWS_PROFILE" in
+    *-prod|*production*) prompt_segment yellow  "AWS: ${AWS_PROFILE:gs/%/%%}" ;;
+    *) prompt_segment green "AWS: ${AWS_PROFILE:gs/%/%%}" ;;
+  esac
+}
+
+prompt_newline(){
+  local PROMPT_DEFAULT_END=❯
+  echo "
+%F{2}${PROMPT_DEFAULT_END}%f"
+}
+
+## Main prompt
+build_prompt() {
+  RETVAL=$?
+  echo -n '\n'
+  prompt_status
+  prompt_toon
+  prompt_virtualenv
+  prompt_aws
+  prompt_context
+  prompt_dir
+  prompt_git
+  prompt_bzr
+  prompt_hg
+  prompt_end
+  prompt_newline
+}
+
+PROMPT='%{%f%b%k%}$(build_prompt) '