在Laravel中找到目录中的最小文件大小？

分类：编程问答

如何解决在Laravel中找到目录中的最小文件大小？

我需要从目录中找到最小的文件大小。用Laravel做到并保持代码最少的最佳方法是什么？

我正在使用此代码，但是我确信有一种更好，更有效的方法。

$files = Storage::files("videos");

$files = Arr::where($files,function ($value,$key) {
    return Str::contains($value,'string..') && Str::endsWith($value,'.mp4');
}); // keep only certain files from videos directory in the files array

foreach ($files as $key => $file)
{
    $files[$key] = ['file' => $file,'size' => Storage::size($file)]; 
}

$min = collect($files)->min('size'); // 1000000

// find file by size...

解决方法

在循环文件时保持最小：

-- The C compiler identification is GNU 8.3.0
-- The CXX compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonLibs: /usr/lib/python3.7/config-3.7m-arm-linux-gnueabihf/libpython3.7.so (found suitable version "3.7.3",minimum required is "3.5") 
-- Using libclang archive: /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/cpp/../clang_archives/libclang-10.0.0-armv7a-linux-gnueabihf.tar.bz2
-- Using libclang to provide semantic completion for C/C++/ObjC
-- Using external libclang: /tmp/ycm_build_zcxr6q5l/lib/libclang.so.10
-- NOT using clang-tidy for static analysis.
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/ycm_build_zcxr6q5l
Scanning dependencies of target BoostParts
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-- The C compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Found PythonLibs: /usr/lib/python3.7/config-3.7m-arm-linux-gnueabihf/libpython3.7.so (found version "3.7.3") 
-- Configuring done
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Scanning dependencies of target _regex
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[100%] Linking C shared library /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/cregex/regex_3/_regex.so
[100%] Built target _regex
running build
running build_py
creating /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3
creating /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog
copying src/watchdog/events.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog
copying src/watchdog/watchmedo.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog
copying src/watchdog/__init__.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog
copying src/watchdog/version.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog
creating /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/compat.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/win32stat.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/dirsnapshot.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/delayed_queue.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/echo.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/bricks.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/unicode_paths.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/__init__.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
copying src/watchdog/utils/platform.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/utils
creating /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/tricks
copying src/watchdog/tricks/__init__.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/tricks
creating /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/inotify_c.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/inotify_buffer.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/fsevents.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/polling.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/inotify.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/api.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/read_directory_changes.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/kqueue.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/__init__.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/fsevents2.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
copying src/watchdog/observers/winapi.py -> /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/watchdog_deps/watchdog/build/lib3/watchdog/observers
running egg_info
writing src/watchdog.egg-info/PKG-INFO
writing dependency_links to src/watchdog.egg-info/dependency_links.txt
writing entry points to src/watchdog.egg-info/entry_points.txt
writing requirements to src/watchdog.egg-info/requires.txt
writing top-level names to src/watchdog.egg-info/top_level.txt
reading manifest file 'src/watchdog.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching '*.h' under directory 'src'
writing manifest file 'src/watchdog.egg-info/SOURCES.txt'
Searching Python 3.7 libraries...
Found Python library: /usr/lib/python3.7/config-3.7m-arm-linux-gnueabihf/libpython3.7.so
Found Python headers folder: /usr/include/python3.7m
Installing Omnisharp v1.35.3
Using cached Omnisharp: omnisharp.http-linux-x86.tar.gz
Extracting Omnisharp to /home/pi/.vim/plugged/youcompleteme/third_party/ycmd/third_party/omnisharp-roslyn...DONE
Done installing Omnisharp
go: finding github.com/kr/pty v1.1.1
go: finding golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e
go: finding gopkg.in/errgo.v2 v2.1.0
go: finding golang.org/x/tools v0.0.0-20200701133321-6ddc6be4d35f
go: finding golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d
go: finding golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529
go: finding gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127
go: finding golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3
go: finding golang.org/x/sys v0.0.0-20190412213103-97732733099d
go: finding golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
go: finding golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a
go: finding golang.org/x/text v0.3.0
go: finding golang.org/x/mod v0.2.0
go: finding golang.org/x/net v0.0.0-20200226121028-0de0cce0169b
go: finding golang.org/x/net v0.0.0-20190620200207-3b0461eec859
go: finding github.com/yuin/goldmark v1.1.27
go: finding golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e
go: finding golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550
go: finding golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543
go: finding golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
go: finding golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898
go: finding golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
go: finding golang.org/x/sync v0.0.0-20190423024810-112230192c58
go: downloading golang.org/x/tools v0.0.0-20200701133321-6ddc6be4d35f
go: downloading golang.org/x/tools/gopls v0.4.2
go: downloading honnef.co/go/tools v0.0.1-2020.1.4
go: downloading github.com/sergi/go-diff v1.1.0
go: downloading golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543
go: downloading mvdan.cc/xurls/v2 v2.2.0
go: downloading golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
go: downloading golang.org/x/mod v0.2.0
go: downloading github.com/BurntSushi/toml v0.3.1
# golang.org/x/tools/internal/lsp/analysis/fillstruct
third_party/go/pkg/mod/golang.org/x/tools@v0.0.0-20200701133321-6ddc6be4d35f/internal/lsp/analysis/fillstruct/fillstruct.go:141:14: tok.LineStart undefined (type *token.File has no field or method LineStart)
third_party/go/pkg/mod/golang.org/x/tools@v0.0.0-20200701133321-6ddc6be4d35f/internal/lsp/analysis/fillstruct/fillstruct.go:170:15: tok.LineStart undefined (type *token.File has no field or method LineStart)
third_party/go/pkg/mod/golang.org/x/tools@v0.0.0-20200701133321-6ddc6be4d35f/internal/lsp/analysis/fillstruct/fillstruct.go:172:15: tok.LineStart undefined (type *token.File has no field or method LineStart)
# golang.org/x/tools/internal/jsonrpc2
third_party/go/pkg/mod/golang.org/x/tools@v0.0.0-20200701133321-6ddc6be4d35f/internal/jsonrpc2/messages.go:171:5: undefined: errors.As
third_party/go/pkg/mod/golang.org/x/tools@v0.0.0-20200701133321-6ddc6be4d35f/internal/jsonrpc2/serve.go:129:5: undefined: errors.Is
,

我认为您可以将sortBy与回调一起使用，以根据文件大小对文件进行排序。也许是这样的

//after Arr::where
$fileWithSmallestSize = collect($files)->sortBy(function($file){
    return Storage::size($file);
})->first();

另一种选择是减少收集。

//after Arr::where
$fileWithSmallestSize = collect($files)->reduce(function($smallestFile,$file){
    return ( Storage::size($file) < Storage::size($smallestFile) )? $file : $smallestFile;
},$files[0]);

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