basic bash script; add 'ga'

Former-commit-id: 866f6c0f2b

forgit.plugin.bash

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+
+__forgit_fzf() {
+    FZF_DEFAULT_OPTS="
+        $FZF_DEFAULT_OPTS
+        --ansi
+        --height '80%'
+        --bind='alt-k:preview-up,alt-p:preview-up'
+        --bind='alt-j:preview-down,alt-n:preview-down'
+        --bind='ctrl-r:toggle-all'
+        --bind='ctrl-s:toggle-sort'
+        --bind='?:toggle-preview'
+        --preview-window='right:60%'
+        --bind='alt-w:toggle-preview-wrap'
+        $FORGIT_FZF_DEFAULT_OPTS
+    " fzf "$@"
+}
+
+__forgit_color_to_grep_code() {
+    case "$1" in
+        black)
+            echo -E '\[30m'
+            ;;
+        red)
+            echo -E '\[31m'
+            ;;
+        green)
+            echo -E '\[32m'
+            ;;
+        yellow)
+            echo -E '\[33m'
+            ;;
+        blue)
+            echo -E '\[34m'
+            ;;
+        magenta)
+            echo -E '\[35m'
+            ;;
+        cyan)
+            echo -E '\[36m'
+            ;;
+        white)
+            echo -E '\[97m'
+            ;;
+    esac
+}
+
+command -v diff-so-fancy >/dev/null 2>&1 && forgit_fancy='|diff-so-fancy'
+command -v emojify >/dev/null 2>&1       && forgit_emojify='|emojify'
+
+__forgit_inside_work_tree() {
+  git rev-parse --is-inside-work-tree >/dev/null 2>&1
+}
+
+__forgit_get_git_color() {
+  local color=$(git config $1);
+  color=${color:-$2}
+  echo $(__forgit_color_to_grep_code $color)
+}
+
+__forgit_add() {
+  if [[ __forgit_inside_work_tree -ne 0 ]]; then
+    return 1
+  fi
+  added=$(__forgit_get_git_color "color.status.untracked" "red")
+  changed=$(__forgit_get_git_color "color.status.changed" "red")
+  unmerged=$(__forgit_get_git_color "color.status.unmerged" "red")
+
+  local files=$(git -c color.status=always status --short |
+        grep -e "$added" -e "$changed" -e "$unmerged" |
+        awk '{printf "[%10s]  ", $1; $1=""; print $0}' |
+        __forgit_fzf -0 -m --nth 2..,.. \
+        --preview="git diff --no-ext-diff --color=always -- {-1} $forgit_emojify $forgit_fancy" |
+        cut -d] -f2 |
+        sed 's/.* -> //' | # for rename case
+        tr '\n' ' ' | tr -s ' ' | sed -e 's/^[[:space:]]*//')
+  if [[ -n "$files" ]]; then
+    cmd="git add $files"
+    bind '"\e[0n": "'"$cmd"'"';
+    printf '\e[5n'
+  else
+    echo 'Nothing to add.'
+  fi
+}
+
+alias ${forgit_add:-ga}=__forgit_add