在SublimeText编辑器中显示文件状态

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文章目录[隐藏]

SublimeText可以在无须将文件存盘、保存更改的情况下将软件关闭,而不丢失会话状态,我养成了打开N个文件的习惯,其中很多都是未存盘的、未保存更改的;想要清理的时候发现不能方便地判断一些处于“未保存”状态的文件是否已被删除,所以写了个小插件,在状态栏显示已打开多少个文件,以及当前文件的具体状态:未存盘、已删除、已保存、未保存。

效果预览:

只显示打开数量和文件状态

显示格式为[当前window打开的文件数量 ~ 文件状态],SAVED / UNSAVED / NONE / DEL 分别代表已保存、文件存在但未保存更改、文件不再盘上、文件之前在盘上但已被删除。当然,格式和代号你可以根据喜好修改。

本文插件以及更多插件已在github开源,此repo中还有表格转换、html处理、时间转换等一些小工具,欢迎使用、反馈。

实现方案

SublimeText3\Data\Packages\User\目录下新建show_file_status.py文件,内容如下:

import os.path import sublime import sublime_plugin class ShowFileStatus(sublime_plugin.EventListener): def update_file_status(self, view): if not view.file_name(): status = "NONE" elif not os.path.exists(view.file_name()): status = "DEL" elif view.is_dirty(): status = "UNSAVED" else: status = "SAVED" window = sublime.active_window() status = str(len(window.views())) + " ~ " + status view.set_status(self.KEY_SIZE, "[%s]" % status) on_post_save_async = update_file_status on_modified_async = update_file_status on_activated_async = update_file_status

另一种方案:

官方repo中的StatusBarFileSize这个package可以在状态栏显示当前文件的体积,它是结合文件编码进行计算的,稍微有一点耗性能,如果你需要它提供的这个功能的话,可在安装完成后,参考下面的代码进行一些修改,也可以实现本文主题的功能。

效果预览:

显示打开数量、文件状态和文件体积

安装完毕后,替换SublimeText3\Data\Packages\StatusBarFileSize\下的StatusBarFileSize.py为以下内容:

import os.path import sublime import sublime_plugin # Format a size in bytes into a nicer string value. Defaults to 1024 convention. def file_size_str(size, divisor=1024): sizes = ["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"] if size < divisor: return "%d %s" % (size, "Bytes" if size != 1 else "Byte") else: size_val = size / divisor for unit in sizes: if size_val >= divisor: size_val /= divisor else: return "%.2f %s" % (size_val, unit) return "%.2f %s" % (size_val * divisor, sizes[-1]) # Far from a perfect system, but seems to be the only way to get a usable Python # encoding from Sublime Text. SPECIAL_HEXADECIMAL = "special-hexadecimal" ENCODING_MAP = { "Undefined": "ascii", "Hexadecimal": SPECIAL_HEXADECIMAL, "UTF-8": "utf-8", "UTF-16 LE": "utf-16le", "UTF-16 BE": "utf-16be", "Western (Windows 1252)": "windows-1252", "Western (ISO 8859-1)": "iso-8859-1", "Western (ISO 8859-3)": "iso-8859-3", "Western (ISO 8859-15)": "iso-8859-15", "Western (Mac Roman)": "mac_roman", "DOS (CP 437)": "cp-437", "Arabic (Windows 1256)": "windows-1256", "Arabic (ISO 8859-6)": "iso-8859-6", "Baltic (Windows 1257)": "windows-1257", "Baltic (ISO 8859-4)": "iso-8859-4", "Celtic (ISO 8859-14)": "iso-8859-14", "Central European (Windows 1250)": "windows-1250", "Central European (ISO 8859-2)": "iso-8859-2", "Cyrillic (Windows 1251)": "windows-1251", "Cyrillic (Windows 866)": "windows-866", "Cyrillic (ISO 8859-5)": "iso-8859-5", "Cyrillic (KOI8-R)": "koi8_r", "Cyrillic (KOI8-U)": "koi8_u", "Estonian (ISO 8859-13)": "iso-8859-13", "Greek (Windows 1253)": "windows-1253", "Greek (ISO 8859-7)": "iso-8859-7", "Hebrew (Windows 1255)": "windows-1255", "Hebrew (ISO 8859-8)": "iso-8859-8", "Nordic (ISO 8859-10)": "iso-8859-10", "Romanian (ISO 8859-16)": "iso-8859-16", "Turkish (Windows 1254)": "windows-1254", "Turkish (ISO 8859-9)": "iso-8859-9", "Vietnamese (Windows 1258)": "windows-1258", } CONSTANT_OVERHEAD = { # Apparently ST doesn't add BOMs. # "UTF-16 LE": 2, # "UTF-16 BE": 2, } # Ditto for line endings. At least there's only three forms here. LINE_ENDINGS_MAP = { "Unix": "\n", "Windows": "\r\n", "CR": "\r", } BLOCK_SIZE = 1000 def ranges(start, end, bs): i = 0 while i < end: yield (i, min(i + bs, end)) i += bs def count_hex_digits(s): # Count hexadecimal digits in s. return sum(1 for x in s if x in "abcdefABCDEF0123456789") def estimate_file_size(view): tag = view.change_count() try: line_endings = LINE_ENDINGS_MAP[view.line_endings()] encoding = ENCODING_MAP[view.encoding()] overhead = CONSTANT_OVERHEAD.get(view.encoding(), 0) except KeyError: # Unknown encoding or line ending, so we fail. return None size = overhead for start, end in ranges(0, view.size(), BLOCK_SIZE): if view.change_count() != tag: # Buffer was changed, we abort our mission. return None r = sublime.Region(start, end) text = view.substr(r) if encoding == SPECIAL_HEXADECIMAL: # Special-case handling for the special-case Hexadecimal encoding. # The division doesn't truncate on purpose, to count half-bytes when # we have uneven numbers of hex digits. The result gets forced into # an int on return. size += count_hex_digits(text) / 2 else: try: size += len(text.replace("\n", line_endings).encode(encoding)) except UnicodeError: # Encoding failed, we just fail here. return None return int(size) class StatusBarFileSize(sublime_plugin.EventListener): KEY_SIZE = "FileSize" SETTINGS = "StatusBarFileSize.sublime-settings" ESTIMATE_DEFAULT = True @property def setting_estimate_file_size(self): settings = sublime.load_settings(self.SETTINGS) return settings.get("estimate_file_size", self.ESTIMATE_DEFAULT) def update_file_size(self, view): if not view.file_name(): status = "NONE" elif not os.path.exists(view.file_name()): status = "DEL" elif view.is_dirty(): status = "UNSAVED" else: status = "SAVED" window = sublime.active_window() status = str(len(window.views())) + " ~ " + status if not view.file_name() or view.is_dirty(): if self.setting_estimate_file_size: # Try to estimate the file size based on encoding and line # endings. size = estimate_file_size(view) pattern = "~%s" else: size = None else: try: size = os.path.getsize(view.file_name()) pattern = "%s" except OSError: size = None if size is not None: view.set_status(self.KEY_SIZE, ("[%s] " % status + pattern % file_size_str(size))) else: view.set_status(self.KEY_SIZE, "[%s]" % status) on_post_save_async = update_file_size on_modified_async = update_file_size on_activated_async = update_file_size

参考资料

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本文最后修改于4年前 (2018-09-18)

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