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A reasonably complete implementation of the "changeset" command-line tool

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and the ".sessions" command in the command-line shell.

FossilOrigin-Name: 7b12f1f9c012f33d376242920583807b014b3287
This commit is contained in:
drh
2014-08-18 20:01:31 +00:00
parent 3a67b0453e
commit 03168cacd5
4 changed files with 191 additions and 13 deletions
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80
src/shell.c
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@@ -1788,6 +1788,21 @@ static void session_close_all(ShellState *p){
#endif
}
/*
** Implementation of the xFilter function for an open session. Omit
** any tables named by ".session filter" but let all other table through.
*/
#if defined(SQLITE_ENABLE_SESSION)
static int session_filter(void *pCtx, const char *zTab){
OpenSession *pSession = (OpenSession*)pCtx;
int i;
for(i=0; i<pSession->nFilter; i++){
if( sqlite3_strglob(pSession->azFilter[i], zTab)==0 ) return 0;
}
return 1;
}
#endif
/*
** Make sure the database is open. If it is not, then open it. If
** the database fails to open, print an error message and exit.
@@ -3235,12 +3250,75 @@ static int do_meta_command(char *zLine, ShellState *p){
** Close the identified session
*/
if( strcmp(azCmd[0], "close")==0 ){
if( nCmd!=1 ) goto session_syntax_error;
if( p->nSession ){
session_close(pSession);
p->aSession[iSes] = p->aSession[--p->nSession];
}
}else
/* .session enable ?BOOLEAN?
** Query or set the enable flag
*/
if( strcmp(azCmd[0], "enable")==0 ){
int ii;
if( nCmd>2 ) goto session_syntax_error;
ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
if( p->nSession ){
ii = sqlite3session_enable(pSession->p, ii);
fprintf(p->out, "session %s enable flag = %d\n", pSession->zName, ii);
}
}else
/* .session filter GLOB ....
** Set a list of GLOB patterns of table names to be excluded.
*/
if( strcmp(azCmd[0], "filter")==0 ){
int ii, nByte;
if( nCmd<2 ) goto session_syntax_error;
if( p->nSession ){
for(ii=0; ii<pSession->nFilter; ii++){
sqlite3_free(pSession->azFilter[ii]);
}
sqlite3_free(pSession->azFilter);
nByte = sizeof(pSession->azFilter[0])*(nCmd-1);
pSession->azFilter = sqlite3_malloc( nByte );
if( pSession->azFilter==0 ){
fprintf(stderr, "Error: out or memory\n");
exit(1);
}
for(ii=1; ii<nCmd; ii++){
pSession->azFilter[ii-1] = sqlite3_mprintf("%s", azCmd[ii]);
}
pSession->nFilter = ii-1;
}
}else
/* .session indirect ?BOOLEAN?
** Query or set the indirect flag
*/
if( strcmp(azCmd[0], "indirect")==0 ){
int ii;
if( nCmd>2 ) goto session_syntax_error;
ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
if( p->nSession ){
ii = sqlite3session_indirect(pSession->p, ii);
fprintf(p->out, "session %s indirect flag = %d\n", pSession->zName,ii);
}
}else
/* .session isempty
** Determine if the session is empty
*/
if( strcmp(azCmd[0], "isempty")==0 ){
int ii;
if( nCmd!=1 ) goto session_syntax_error;
if( p->nSession ){
ii = sqlite3session_isempty(pSession->p);
fprintf(p->out, "session %s isempty flag = %d\n", pSession->zName, ii);
}
}else
/* .session list
** List all currently open sessions
*/
@@ -3276,6 +3354,8 @@ static int do_meta_command(char *zLine, ShellState *p){
rc = 0;
goto meta_command_exit;
}
pSession->nFilter = 0;
sqlite3session_table_filter(pSession->p, session_filter, pSession);
p->nSession++;
pSession->zName = sqlite3_mprintf("%s", zName);
}else