git 状态 2.011
25

早上第一个到的人 git status 任何喜欢边打字边喝咖啡的人都会爱上这个小助手。尤其是在并行开发多个 Web 项目时，简洁明了的概览至关重要：工作树的哪些部分是干净的？哪些部分存在未合并的更改？哪些部分有待处理的拉取/推送操作？你只需要一个小型 shell 工具——前提是它能够稳健地处理路径中的空格/Unicode 字符，并且不会因为远程连接卡住而崩溃。

#!/usr/bin/env bash

set -Eeuo pipefail
export LC_ALL=C

# Check if a command exists (no output).
have() { command -v "$1" >/dev/null 2>&1; }

# Ensure we have a `sort` that supports -z (NUL-delimited) input.
SORT_BIN="sort"
if ! "$SORT_BIN" -z </dev/null 2>/dev/null; then
  if have gsort && gsort -z </dev/null 2>/dev/null; then
    SORT_BIN="gsort"
  else
    printf 'Error: This script requires "sort -z" (GNU coreutils). Install coreutils (gsort).\n' >&2
    exit 1
  fi
fi

# Use GNU `timeout` if available; otherwise try `gtimeout` (macOS); otherwise no timeout.
TIMEOUT_BIN="timeout"
if ! have "$TIMEOUT_BIN"; then
  if have gtimeout; then
    TIMEOUT_BIN="gtimeout"
  else
    TIMEOUT_BIN=""
  fi
fi

# Require git.
if ! have git; then
  printf 'Error: "git" not found.\n' >&2
  exit 1
fi

# Remove a leading "./" from a path for cleaner output.
trim_dot_slash() {
  case "$1" in
    ./*) printf '%s\n' "${1#./}" ;;
    *)   printf '%s\n' "$1" ;;
  esac
}

# Legend + divider (as requested)
printf '\n🟢: clean\n🟡: behind/ahead\n🔴: modified\n\n----------------------------------\n\n'

# Find all .git directories, NUL-delimited; sort NUL-delimited; iterate safely.
find . -type d -name .git -print0 \
| "$SORT_BIN" -z \
| while IFS= read -r -d '' gitdir; do
    repo="${gitdir%/.git}"
    display_path="$(trim_dot_slash "$repo")"

    # Skip anything that isn't a proper work tree (safety check).
    if ! git -C "$repo" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
      continue
    fi

    # Working tree status; include untracked files for a strict "red" signal.
    status_out="$(git -C "$repo" status --porcelain=v1 || true)"

    # Upstream divergence check (only if an upstream is configured).
    ahead=0
    behind=0
    if git -C "$repo" rev-parse --abbrev-ref --symbolic-full-name '@{u}' >/dev/null 2>&1; then
      # Refresh refs; protect with timeout so a hanging remote doesn't stall the loop.
      if [ -n "$TIMEOUT_BIN" ]; then
        "$TIMEOUT_BIN" 10s git -C "$repo" fetch --all --prune >/dev/null 2>&1 || true
      else
        git -C "$repo" fetch --all --prune >/dev/null 2>&1 || true
      fi
      # Count commits only on our side (ahead) and only on upstream's side (behind).
      ahead="$(git  -C "$repo" rev-list --count --left-only  HEAD...@{u} 2>/dev/null || echo 0)"
      behind="$(git -C "$repo" rev-list --count --right-only HEAD...@{u} 2>/dev/null || echo 0)"
    fi

    # Decide the signal:
    # - RED if the working tree isn't clean
    # - YELLOW if clean but ahead/behind of upstream
    # - GREEN otherwise
    if [ -n "$status_out" ]; then
      printf '🔴 %s\n' "$display_path"
    else
      if [ "${ahead:-0}" -gt 0 ] || [ "${behind:-0}" -gt 0 ]; then
        printf '🟡 %s\n' "$display_path"
      else
        printf '🟢 %s\n' "$display_path"
      fi
    fi
  done

剧本还需要修改…… chmod +x ~/path/to/script.sh 使其可执行，并可设置别名以节省宝贵的输入：在这里，您可以添加到他的 ~/.bashrc / ~/.zshrc / ~/.bash_profile 入口 alias gscan='bash /path/to/script.sh' 此外，从那时起，一个简单的 gscan 在所需的根目录中。

第二次运行速度明显更快的原因之一是：第一次运行时，文件系统仍然需要扫描所有内容；之后，元数据和许多其他内容已经处理完毕。 .git结构体已加载到操作系统内核的页面缓存中，引用和提交图也已准备就绪。下一步…… fetch 现在它主要只传输小幅变化。没有仪表盘，没有额外开销——直接在终端上快速显示状态快照。

背部

git 状态 2.01125

git 状态 2.011
25