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：
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
在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：
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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