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Comment:Refinement to the URL-to-basename algorithm used to construct a repository filename from a clone URL so that the "www." prefix is not omitted if it is immediately followed by the suffix. forum post 74e111a2ee.
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SHA3-256: 380aa578a8ecbc952672b9dad5b4d8a90a09a93be1948c6602d097183d6eb756
User & Date: drh 2021-05-13 19:38:51
Original Comment: Refinement to the URL-to-basename algorithm used to construct a repository filename from a clone URL so that the "www." prefix is not omitted if it is immediately followed by the suffix. [forum/forumpost/74e111a2ee|forum post 74e111a2ee].
Context
2021-05-14
18:52
When doing a clone that automatically does an open, run the "fossil open" command as a subprocess (usingn fossil_system()) to avoid problems with misconfigured database connections in the event that the clone uses the "file:" scheme. See forum post b1da662b00 for the bug report. ... (check-in: ebd604f8 user: drh tags: trunk)
2021-05-13
19:38
Refinement to the URL-to-basename algorithm used to construct a repository filename from a clone URL so that the "www." prefix is not omitted if it is immediately followed by the suffix. forum post 74e111a2ee. ... (check-in: 380aa578 user: drh tags: trunk)
2021-05-12
02:14
Change log updates. ... (check-in: 705d519f user: stephan tags: trunk)
Changes
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Changes to src/url.c.

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** reasonable basename of a local clone of that repository.
**
**    *  If the URL has a path, use the tail of the path, with any suffix
**       elided.
**
**    *  If the URL is just a domain name, without a path, then use the
**       first element of the domain name, except skip over "www." if 
**       present.
**
** The string returned is obtained from fossil_malloc().  NULL might be
** returned if there is an error.
*/
char *url_to_repo_basename(const char *zUrl){
  const char *zTail = 0;
  int i;
  if( zUrl==0 ) return 0;
  for(i=0; zUrl[i]; i++){
    if( zUrl[i]=='?' ) break;
    if( (zUrl[i]=='/' || zUrl[i]=='@') && zUrl[i+1]!=0 ) zTail = &zUrl[i+1];
  }
  if( zTail==0 ) return 0;
  if( sqlite3_strnicmp(zTail, "www.", 4)==0 ) zTail += 4;





  if( zTail[0]==0 ) return 0;
  for(i=0; zTail[i] && zTail[i]!='.' && zTail[i]!='?'; i++){}
  if( i==0 ) return 0;
  return mprintf("%.*s", i, zTail);
}

/*








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** reasonable basename of a local clone of that repository.
**
**    *  If the URL has a path, use the tail of the path, with any suffix
**       elided.
**
**    *  If the URL is just a domain name, without a path, then use the
**       first element of the domain name, except skip over "www." if 
**       present and if there is a ".com" or ".org" or similar suffix.
**
** The string returned is obtained from fossil_malloc().  NULL might be
** returned if there is an error.
*/
char *url_to_repo_basename(const char *zUrl){
  const char *zTail = 0;
  int i;
  if( zUrl==0 ) return 0;
  for(i=0; zUrl[i]; i++){
    if( zUrl[i]=='?' ) break;
    if( (zUrl[i]=='/' || zUrl[i]=='@') && zUrl[i+1]!=0 ) zTail = &zUrl[i+1];
  }
  if( zTail==0 ) return 0;
  if( sqlite3_strnicmp(zTail, "www.", 4)==0 && strchr(zTail+4,'.')!=0 ){
    /* Remove the "www." prefix if there are more "." characters later.
    ** But don't remove the "www." prefix if what follows is the suffix.
    ** forum:/forumpost/74e111a2ee */
    zTail += 4;
  }
  if( zTail[0]==0 ) return 0;
  for(i=0; zTail[i] && zTail[i]!='.' && zTail[i]!='?'; i++){}
  if( i==0 ) return 0;
  return mprintf("%.*s", i, zTail);
}

/*
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