thodg/got/include/got_opentemp.h

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• Hash : a558dd1b
  Author :
  Date : 2022-06-08T10:56:53
  

  reuse a temporary file across commits during got log -p -S suggested by + ok op@

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• include/got_opentemp.h

• /*
   * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   */
  
  /* Utilities for opening temporary files. */
  
  #ifndef GOT_TMPDIR
  #define GOT_TMPDIR /tmp
  #endif
  #define GOT_STRINGIFY_TMP(x) #x
  #define GOT_STRINGVAL_TMP(x) GOT_STRINGIFY_TMP(x)
  #define GOT_TMPDIR_STR GOT_STRINGVAL_TMP(GOT_TMPDIR)
  
  /* Open a file descriptor to a new temporary file for writing.
   * The file is not visible in the filesystem. */
  int got_opentempfd(void);
  
  /* Open a new temporary file for writing.
   * The file is not visible in the filesystem. */
  FILE *got_opentemp(void);
  
  /* Open a new temporary file for writing.
   * The file is visible in the filesystem. */
  const struct got_error *got_opentemp_named(char **, FILE **, const char *);
  
  /* Like got_opentemp_named() but returns a file descriptor instead of a FILE. */
  const struct got_error *got_opentemp_named_fd(char **, int *, const char *);
  
  /* Truncate a file. This is useful for re-using open temporary files. */
  const struct got_error *got_opentemp_truncate(FILE *);
  

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