335 lines
11 KiB
VimL
335 lines
11 KiB
VimL
" cache.vim
|
|
" @Author: Tom Link (micathom AT gmail com?subject=[vim])
|
|
" @Website: http://www.vim.org/account/profile.php?user_id=4037
|
|
" @License: GPL (see http://www.gnu.org/licenses/gpl.txt)
|
|
" @Created: 2007-06-30.
|
|
" @Last Change: 2013-09-25.
|
|
" @Revision: 0.1.243
|
|
|
|
|
|
" The cache directory. If empty, use |tlib#dir#MyRuntime|.'/cache'.
|
|
" You might want to delete old files from this directory from time to
|
|
" time with a command like: >
|
|
" find ~/vimfiles/cache/ -atime +31 -type f -print -delete
|
|
TLet g:tlib_cache = ''
|
|
|
|
" |tlib#cache#Purge()|: Remove cache files older than N days.
|
|
TLet g:tlib#cache#purge_days = 31
|
|
|
|
" Purge the cache every N days. Disable automatic purging by setting
|
|
" this value to a negative value.
|
|
TLet g:tlib#cache#purge_every_days = 31
|
|
|
|
" The encoding used for the purge-cache script.
|
|
" Default: 'enc'
|
|
TLet g:tlib#cache#script_encoding = &enc
|
|
|
|
" Whether to run the directory removal script:
|
|
" 0 ... No
|
|
" 1 ... Query user
|
|
" 2 ... Yes
|
|
TLet g:tlib#cache#run_script = 1
|
|
|
|
" Verbosity level:
|
|
" 0 ... Be quiet
|
|
" 1 ... Display informative message
|
|
" 2 ... Display detailed messages
|
|
TLet g:tlib#cache#verbosity = 1
|
|
|
|
" A list of regexps that are matched against partial filenames of the
|
|
" cached files. If a regexp matches, the file won't be removed by
|
|
" |tlib#cache#Purge()|.
|
|
TLet g:tlib#cache#dont_purge = ['[\/]\.last_purge$']
|
|
|
|
" If the cache filename is longer than N characters, use
|
|
" |pathshorten()|.
|
|
TLet g:tlib#cache#max_filename = 200
|
|
|
|
|
|
" :display: tlib#cache#Dir(?mode = 'bg')
|
|
" The default cache directory.
|
|
function! tlib#cache#Dir(...) "{{{3
|
|
TVarArg ['mode', 'bg']
|
|
let dir = tlib#var#Get('tlib_cache', mode)
|
|
if empty(dir)
|
|
let dir = tlib#file#Join([tlib#dir#MyRuntime(), 'cache'])
|
|
endif
|
|
return dir
|
|
endf
|
|
|
|
|
|
" :def: function! tlib#cache#Filename(type, ?file=%, ?mkdir=0, ?dir='')
|
|
function! tlib#cache#Filename(type, ...) "{{{3
|
|
" TLogDBG 'bufname='. bufname('.')
|
|
let dir0 = a:0 >= 3 && !empty(a:3) ? a:3 : tlib#cache#Dir()
|
|
let dir = dir0
|
|
if a:0 >= 1 && !empty(a:1)
|
|
let file = a:1
|
|
else
|
|
if empty(expand('%:t'))
|
|
return ''
|
|
endif
|
|
let file = expand('%:p')
|
|
let file = tlib#file#Relative(file, tlib#file#Join([dir, '..']))
|
|
endif
|
|
" TLogVAR file, dir
|
|
let mkdir = a:0 >= 2 ? a:2 : 0
|
|
let file = substitute(file, '\.\.\|[:&<>]\|//\+\|\\\\\+', '_', 'g')
|
|
let dirs = [dir, a:type]
|
|
let dirf = fnamemodify(file, ':h')
|
|
if dirf != '.'
|
|
call add(dirs, dirf)
|
|
endif
|
|
let dir = tlib#file#Join(dirs)
|
|
" TLogVAR dir
|
|
let dir = tlib#dir#PlainName(dir)
|
|
" TLogVAR dir
|
|
let file = fnamemodify(file, ':t')
|
|
" TLogVAR file, dir, mkdir
|
|
let cache_file = tlib#file#Join([dir, file])
|
|
if len(cache_file) > g:tlib#cache#max_filename
|
|
if v:version >= 704
|
|
let shortfilename = pathshorten(file) .'_'. sha256(file)
|
|
else
|
|
let shortfilename = pathshorten(file) .'_'. tlib#hash#Adler32(file)
|
|
endif
|
|
let cache_file = tlib#cache#Filename(a:type, shortfilename, mkdir, dir0)
|
|
else
|
|
if mkdir && !isdirectory(dir)
|
|
try
|
|
call mkdir(dir, 'p')
|
|
catch /^Vim\%((\a\+)\)\=:E739:/
|
|
if filereadable(dir) && !isdirectory(dir)
|
|
echoerr 'TLib: Cannot create directory for cache file because a file with the same name exists (please delete it):' dir
|
|
" call delete(dir)
|
|
" call mkdir(dir, 'p')
|
|
endif
|
|
endtry
|
|
endif
|
|
endif
|
|
" TLogVAR cache_file
|
|
return cache_file
|
|
endf
|
|
|
|
|
|
let s:timestamps = {}
|
|
|
|
|
|
function! s:SetTimestamp(cfile, type) "{{{3
|
|
if !has_key(s:timestamps, a:cfile)
|
|
let s:timestamps[a:cfile] = {}
|
|
endif
|
|
let s:timestamps[a:cfile].atime = getftime(a:cfile)
|
|
let s:timestamps[a:cfile][a:type] = s:timestamps[a:cfile].atime
|
|
endf
|
|
|
|
|
|
function! tlib#cache#Save(cfile, dictionary) "{{{3
|
|
" TLogVAR a:cfile, a:dictionary
|
|
if !empty(a:cfile)
|
|
" TLogVAR a:dictionary
|
|
call writefile([string(a:dictionary)], a:cfile, 'b')
|
|
call s:SetTimestamp(a:cfile, 'write')
|
|
endif
|
|
endf
|
|
|
|
|
|
function! tlib#cache#MTime(cfile) "{{{3
|
|
let mtime = {'mtime': getftime(a:cfile)}
|
|
let mtime = extend(mtime, get(s:timestamps, a:cfile, {}))
|
|
return mtime
|
|
endf
|
|
|
|
|
|
function! tlib#cache#Get(cfile, ...) "{{{3
|
|
call tlib#cache#MaybePurge()
|
|
if !empty(a:cfile) && filereadable(a:cfile)
|
|
let val = readfile(a:cfile, 'b')
|
|
call s:SetTimestamp(a:cfile, 'read')
|
|
return eval(join(val, "\n"))
|
|
else
|
|
let default = a:0 >= 1 ? a:1 : {}
|
|
return default
|
|
endif
|
|
endf
|
|
|
|
|
|
" Get a cached value from cfile. If it is outdated (compared to ftime)
|
|
" or does not exist, create it calling a generator function.
|
|
function! tlib#cache#Value(cfile, generator, ftime, ...) "{{{3
|
|
if !filereadable(a:cfile) || (a:ftime != 0 && getftime(a:cfile) < a:ftime)
|
|
let args = a:0 >= 1 ? a:1 : []
|
|
" TLogVAR a:generator, args
|
|
let val = call(a:generator, args)
|
|
" TLogVAR val
|
|
let cval = {'val': val}
|
|
" TLogVAR cval
|
|
call tlib#cache#Save(a:cfile, cval)
|
|
return val
|
|
else
|
|
let val = tlib#cache#Get(a:cfile)
|
|
return val.val
|
|
endif
|
|
endf
|
|
|
|
|
|
" Call |tlib#cache#Purge()| if the last purge was done before
|
|
" |g:tlib#cache#purge_every_days|.
|
|
function! tlib#cache#MaybePurge() "{{{3
|
|
if g:tlib#cache#purge_every_days < 0
|
|
return
|
|
endif
|
|
let dir = tlib#cache#Dir('g')
|
|
let last_purge = tlib#file#Join([dir, '.last_purge'])
|
|
let last_purge_exists = filereadable(last_purge)
|
|
if last_purge_exists
|
|
let threshold = localtime() - g:tlib#cache#purge_every_days * g:tlib#date#dayshift
|
|
let should_purge = getftime(last_purge) < threshold
|
|
else
|
|
let should_purge = 0 " should ignore empty dirs, like the tmru one: !empty(glob(tlib#file#Join([dir, '**'])))
|
|
endif
|
|
if should_purge
|
|
if last_purge_exists
|
|
let yn = 'y'
|
|
else
|
|
let txt = "TLib: The cache directory '". dir ."' should be purged of old files.\nDelete files older than ". g:tlib#cache#purge_days ." days now?"
|
|
let yn = tlib#input#Dialog(txt, ['yes', 'no'], 'no')
|
|
endif
|
|
if yn =~ '^y\%[es]$'
|
|
call tlib#cache#Purge()
|
|
else
|
|
let g:tlib#cache#purge_every_days = -1
|
|
if !last_purge_exists
|
|
call s:PurgeTimestamp(dir)
|
|
endif
|
|
echohl WarningMsg
|
|
echom "TLib: Please run :call tlib#cache#Purge() to clean up ". dir
|
|
echohl NONE
|
|
endif
|
|
elseif !last_purge_exists
|
|
call s:PurgeTimestamp(dir)
|
|
endif
|
|
endf
|
|
|
|
|
|
" Delete old files.
|
|
function! tlib#cache#Purge() "{{{3
|
|
let threshold = localtime() - g:tlib#cache#purge_days * g:tlib#date#dayshift
|
|
let dir = tlib#cache#Dir('g')
|
|
if g:tlib#cache#verbosity >= 1
|
|
echohl WarningMsg
|
|
echom "TLib: Delete files older than ". g:tlib#cache#purge_days ." days from ". dir
|
|
echohl NONE
|
|
endif
|
|
let files = tlib#cache#ListFilesInCache()
|
|
let deldir = []
|
|
let newer = []
|
|
let msg = []
|
|
let more = &more
|
|
set nomore
|
|
try
|
|
for file in files
|
|
if isdirectory(file)
|
|
if empty(filter(copy(newer), 'strpart(v:val, 0, len(file)) ==# file'))
|
|
call add(deldir, file)
|
|
endif
|
|
else
|
|
if getftime(file) < threshold
|
|
if delete(file)
|
|
call add(msg, "TLib: Could not delete cache file: ". file)
|
|
elseif g:tlib#cache#verbosity >= 2
|
|
call add(msg, "TLib: Delete cache file: ". file)
|
|
endif
|
|
else
|
|
call add(newer, file)
|
|
endif
|
|
endif
|
|
endfor
|
|
finally
|
|
let &more = more
|
|
endtry
|
|
if !empty(msg) && g:tlib#cache#verbosity >= 1
|
|
echo join(msg, "\n")
|
|
endif
|
|
if !empty(deldir)
|
|
if &shell =~ 'sh\(\.exe\)\?$'
|
|
let scriptfile = 'deldir.sh'
|
|
let rmdir = 'rm -rf %s'
|
|
else
|
|
let scriptfile = 'deldir.bat'
|
|
let rmdir = 'rmdir /S /Q %s'
|
|
endif
|
|
let enc = g:tlib#cache#script_encoding
|
|
if has('multi_byte') && enc != &enc
|
|
call map(deldir, 'iconv(v:val, &enc, enc)')
|
|
endif
|
|
let scriptfile = tlib#file#Join([dir, scriptfile])
|
|
if filereadable(scriptfile)
|
|
let script = readfile(scriptfile)
|
|
else
|
|
let script = []
|
|
endif
|
|
let script += map(copy(deldir), 'printf(rmdir, shellescape(v:val, 1))')
|
|
let script = tlib#list#Uniq(script)
|
|
call writefile(script, scriptfile)
|
|
call inputsave()
|
|
if g:tlib#cache#run_script == 0
|
|
if g:tlib#cache#verbosity >= 1
|
|
echohl WarningMsg
|
|
if g:tlib#cache#verbosity >= 2
|
|
echom "TLib: Purged cache. Need to run script to delete directories"
|
|
endif
|
|
echom "TLib: Please review and execute: ". scriptfile
|
|
echohl NONE
|
|
endif
|
|
else
|
|
try
|
|
let yn = g:tlib#cache#run_script == 2 ? 'y' : tlib#input#Dialog("TLib: About to delete directories by means of a shell script.\nDirectory removal script: ". scriptfile ."\nRun script to delete directories now?", ['yes', 'no', 'edit'], 'no')
|
|
if yn =~ '^y\%[es]$'
|
|
exec 'cd '. fnameescape(dir)
|
|
exec '! ' &shell shellescape(scriptfile, 1)
|
|
exec 'cd -'
|
|
call delete(scriptfile)
|
|
elseif yn =~ '^e\%[dit]$'
|
|
exec 'edit '. fnameescape(scriptfile)
|
|
endif
|
|
finally
|
|
call inputrestore()
|
|
endtry
|
|
endif
|
|
endif
|
|
call s:PurgeTimestamp(dir)
|
|
endf
|
|
|
|
|
|
function! s:PurgeTimestamp(dir) "{{{3
|
|
let last_purge = tlib#file#Join([a:dir, '.last_purge'])
|
|
" TLogVAR last_purge
|
|
call writefile([" "], last_purge)
|
|
endf
|
|
|
|
function! tlib#cache#ListFilesInCache(...) "{{{3
|
|
let dir = a:0 >= 1 ? a:1 : tlib#cache#Dir('g')
|
|
if v:version > 702 || (v:version == 702 && has('patch51'))
|
|
let filess = glob(tlib#file#Join([dir, '**']), 1)
|
|
else
|
|
let filess = glob(tlib#file#Join([dir, '**']))
|
|
endif
|
|
let files = reverse(split(filess, '\n'))
|
|
let pos0 = len(tlib#dir#CanonicName(dir))
|
|
call filter(files, 's:ShouldPurge(strpart(v:val, pos0))')
|
|
return files
|
|
endf
|
|
|
|
|
|
function! s:ShouldPurge(partial_filename) "{{{3
|
|
" TLogVAR a:partial_filename
|
|
for rx in g:tlib#cache#dont_purge
|
|
if a:partial_filename =~ rx
|
|
" TLogVAR a:partial_filename, rx
|
|
return 0
|
|
endif
|
|
endfor
|
|
return 1
|
|
endf
|
|
|