upstream/mercurial-mirror Files · contrib/chg/hgclient.h

lfs: verify lfs object content when transferring to and from the remote store...

lfs: verify lfs object content when transferring to and from the remote store This avoids inserting corrupt files into the usercache, and local and remote stores. One down side is that the bad file won't be available locally for forensic purposes after a remote download. I'm thinking about adding an 'incoming' directory to the local lfs store to handle the download, and then move it to the 'objects' directory after it passes verification. That would have the additional benefit of not concatenating each transfer chunk in memory until the full file is transferred. Verification isn't needed when the data is passed back through the revlog interface or when the oid was just calculated, but otherwise it is on by default. The additional overhead should be well worth avoiding problems with file based remote stores, or buggy lfs servers. Having two different verify functions is a little sad, but the full data of the blob is mostly passed around in memory, because that's what the revlog interface wants. The upload function, however, chunks up the data. It would be ideal if that was how the content is always handled, but that's probably a huge project. I don't really like printing the long hash, but `hg debugdata` isn't a public interface, and is the only way to get it. The filelog and revision info is nowhere near this area, so recommending `hg verify` is the easiest thing to do.

Jun Wu - - Load All Authors

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        Yuya Nishihara
    
chg: import frontend sources...

              r28060
            
      /*

       * A command server client that uses Unix domain socket

       *

       * Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>

       *

       * This software may be used and distributed according to the terms of the

       * GNU General Public License version 2 or any later version.

       */

      #ifndef HGCLIENT_H_

      #define HGCLIENT_H_

      #include <sys/types.h>

      struct hgclient_tag_;

      typedef struct hgclient_tag_ hgclient_t;

      hgclient_t *hgc_open(const char *sockname);

      void hgc_close(hgclient_t *hgc);

        Jun Wu
    
chg: add pgid to hgclient struct...

              r29581
            
      pid_t hgc_peerpgid(const hgclient_t *hgc);

        Yuya Nishihara
    
chg: import frontend sources...

              r28060
            
      pid_t hgc_peerpid(const hgclient_t *hgc);

        Jun Wu
    
chg: implement validate in hgclient...

              r28356
            
      const char **hgc_validate(hgclient_t *hgc, const char *const args[],

      			  size_t argsize);

        Yuya Nishihara
    
chg: import frontend sources...

              r28060
            
      int hgc_runcommand(hgclient_t *hgc, const char *const args[], size_t argsize);

      void hgc_attachio(hgclient_t *hgc);

      void hgc_setenv(hgclient_t *hgc, const char *const envp[]);

      #endif  /* HGCLIENT_H_ */

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Yuya Nishihara chg: import frontend sources...	r28060	/*
		* A command server client that uses Unix domain socket
		*
		* Copyright (c) 2011 Yuya Nishihara <yuya@tcha.org>
		*
		* This software may be used and distributed according to the terms of the
		* GNU General Public License version 2 or any later version.
		*/

		#ifndef HGCLIENT_H_
		#define HGCLIENT_H_

		#include <sys/types.h>

		struct hgclient_tag_;
		typedef struct hgclient_tag_ hgclient_t;

		hgclient_t hgc_open(const char sockname);
		void hgc_close(hgclient_t *hgc);

Jun Wu chg: add pgid to hgclient struct...	r29581	pid_t hgc_peerpgid(const hgclient_t *hgc);
Yuya Nishihara chg: import frontend sources...	r28060	pid_t hgc_peerpid(const hgclient_t *hgc);

Jun Wu chg: implement validate in hgclient...	r28356	const char *hgc_validate(hgclient_t hgc, const char *const args[],
		size_t argsize);
Yuya Nishihara chg: import frontend sources...	r28060	int hgc_runcommand(hgclient_t hgc, const char const args[], size_t argsize);
		void hgc_attachio(hgclient_t *hgc);
		void hgc_setenv(hgclient_t hgc, const char const envp[]);

		#endif /* HGCLIENT_H_ */