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How is a .zip compressed archive structured?

由 旧城冷巷雨未停 提交于 2020-01-30 04:07:51
问题 I'm looking into how popular compression algorithms work so I could possibly implement my own zip archiver. Are there any resources about how exactly zip works? How is a .zip compressed archive structured? 回答1: ZIP format documentation DEFLATE algorithm ZLib compressed data format 来源： https://stackoverflow.com/questions/4776815/how-is-a-zip-compressed-archive-structured

Xcode “Build and Archive” button disabled for Mac app. Why?

由 江枫思渺然 提交于 2020-01-24 19:40:27
问题 I am building a Mac app, but the "Build and Archive" menu item is disabled. I am running Xcode 3.2.4 and OS X 10.6.5. Any suggestions? 回答1: Download and install the "Application Tools" package fixed it for me. Links to the Application Tools download can be found on the index page for the Mac developer program. 来源： https://stackoverflow.com/questions/4382804/xcode-build-and-archive-button-disabled-for-mac-app-why

RAC实例启动Stuck Archiver,空间问题清理后正常

由 半世苍凉 提交于 2020-01-19 15:02:11
测试环境，启动DB状态不正常 检查DB ALERT发现无法在+DATA磁盘组空间不足，ASMCMD lsdg确认空间问题，删除归档后，问题处理。 $ srvctl start database -d rac$ crsctl stat res -tora.rac.db 1 ONLINE INTERMEDIATE a1 Stuck Archiver 2 ONLINE ONLINE a2 Open ************************************************************* ARC0: Error 19504 Creating archive log file to '+DATA' Unable to create archive log file '+DATA' Errors in file /picclife/app/oracle/diag/rdbms/liuliu/rac1/trace/rac1_arc1_27479.trc: ORA-19816: WARNING: Files may exist in db_recovery_file_dest that are not known to database. ORA-17502: ksfdcre:4 Failed to create file +DATA ORA-15041:

Rule of thumb: size of boost archive in relation to original serialized object?

由 …衆ロ難τιáo~ 提交于 2020-01-17 13:15:30
问题 For reasons that I will gloss over, I need to set aside space of a fixed size, and then use boost serialization to store an object there. The choice of archive format is arbitrary, and portability is not a concern. The class is fairly complex (members include fundamental types, arrays, pointers, and child classes) and guaranteed to grow over time. Does anyone have worthwhile sizing guestimates they trust? Space is important, but it's not at a premium. I'm looking for relatively simple answers

Tarring only the files of a directory

由 六月ゝ 毕业季﹏ 提交于 2020-01-17 02:28:37
问题 If I have a folder with a bunch of images, how can I tar ONLY the images and not the folder structure leading to the images without having to CD into the directory of images? tar czf images.tgz /path/to/images/* Now when images.tgz is extracted, the contents that are extracted are /path/to/images/... How I can only have the images included into the tgz file (and not the three folders that lead to the images)? 回答1: I know you can use --strip-components when untarring although I'm not sure if

How to change a file inside an archive (.ear) file without extracting entire file

由 萝らか妹 提交于 2020-01-16 04:09:05
问题 I have an .ear file (an archive file like tar / zip) that has a file inside that i want to change. For example myfile.ear contains 1.txt and i want to change 1.txt to 2.txt and possibly also change some of the content inside 1.txt (like sed does) I really want to avoid having to extract myfile.ear , change the file and compress it again. Does anyone know a way to achieve this in linux ? And if it's not possible, I would also like to know why Thanks. 回答1: EAR files are just JAR files which are

Xcode will build/run but archive fails with “No such module Google” - Swift iOS

由 帅比萌擦擦* 提交于 2020-01-14 10:42:46
问题 My app has been working fine until Xcode 7.1. In fact, it still runs on both the simulator and iPhone, but when I archive it, I get the error "No such module Google." I have cocoa pods updated to 0.39 and have tried for hours with tweaking the options, from reinstalling cocoa pods to removing the Google Analytics cocoa pod and adding it manually, etc. However, nothing has worked, and whenever I archive the app, I receive an error, yet it still runs fine. Any thoughts? Thanks! 回答1: Turns out

Extract Directory Inside Zip

由 只愿长相守 提交于 2020-01-13 18:10:57
问题 I'm writing a script to extract files from a zip archive into the directory that the script is located. Here's my code: $zip = new ZipArchive; if ($zip->open('latest.zip') === TRUE) { $zip->extractTo('.'); $zip->close(); unlink('installer.php'); echo 'it works!'; } else { echo 'failed'; } This works fine, but there's one problem. The zip contains an extra layer. (zip/directory/files) which extracts like this directory/files rather then just the files. Is there a way to remove this extra layer

C/C++ Packing and Compression [closed]

由 旧巷老猫 提交于 2020-01-12 21:06:24
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . I'm working on a commercial project that requires a couple of files to be bundled (packed) into an archive and then compressed. Right now we have zlib in our utility library, but it doesn't look like zlib has the functionality to compress multiple files into one archive. Does

C/C++ Packing and Compression [closed]

由 谁说我不能喝 提交于 2020-01-12 21:05:19
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . I'm working on a commercial project that requires a couple of files to be bundled (packed) into an archive and then compressed. Right now we have zlib in our utility library, but it doesn't look like zlib has the functionality to compress multiple files into one archive. Does
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