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In the ".sha3sum" command, if there is a LIKE pattern, show the hashes for

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each table separately.  Without a LIKE pattern, show a single hash over the
entire database.

FossilOrigin-Name: 30f878832820ce7ccc4627c4f0f98fbe82f8b0f6
This commit is contained in:
drh
2017-03-08 17:56:54 +00:00
parent 1554bc8a2e
commit 3ee83efec1
3 changed files with 40 additions and 11 deletions
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37
src/shell.c
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@@ -1260,6 +1260,10 @@ static void sha3QueryFunc(
}
nCol = sqlite3_column_count(pStmt);
z = sqlite3_sql(pStmt);
if( z==0 ){
sqlite3_finalize(pStmt);
continue;
}
n = (int)strlen(z);
hash_step_vformat(&cx,"S%d:",n);
SHA3Update(&cx,(unsigned char*)z,n);
@@ -5701,10 +5705,13 @@ static int do_meta_command(char *zLine, ShellState *p){
const char *zLike = 0; /* Which table to checksum. 0 means everything */
int i; /* Loop counter */
int bSchema = 0; /* Also hash the schema */
int bSeparate = 0; /* Hash each table separately */
int iSize = 224; /* Hash algorithm to use */
int bDebug = 0; /* Only show the query that would have run */
sqlite3_stmt *pStmt; /* For querying tables names */
char *zSql; /* SQL to be run */
char *zSep; /* Separator */
ShellText sSql; /* Complete SQL for the query to run the hash */
ShellText sQuery; /* Set of queries used to read all content */
for(i=1; i<nArg; i++){
const char *z = azArg[i];
@@ -5724,7 +5731,7 @@ static int do_meta_command(char *zLine, ShellState *p){
}else
{
utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
azArg[0], azArg[i]);
azArg[i], azArg[0]);
raw_printf(stderr, "Should be one of: --schema"
" --sha3-224 --sha3-255 --sha3-384 --sha3-512\n");
rc = 1;
@@ -5736,7 +5743,8 @@ static int do_meta_command(char *zLine, ShellState *p){
goto meta_command_exit;
}else{
zLike = z;
if( sqlite3_strlike("sqlite3_%", zLike, 0)==0 ) bSchema = 1;
bSeparate = 1;
if( sqlite3_strlike("sqlite_%", zLike, 0)==0 ) bSchema = 1;
}
}
if( bSchema ){
@@ -5752,6 +5760,9 @@ static int do_meta_command(char *zLine, ShellState *p){
}
sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
initText(&sQuery);
initText(&sSql);
appendText(&sSql, "WITH [sha3sum$query](a,b) AS(",0);
zSep = "VALUES(";
while( SQLITE_ROW==sqlite3_step(pStmt) ){
const char *zTab = (const char*)sqlite3_column_text(pStmt,0);
if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue;
@@ -5774,11 +5785,29 @@ static int do_meta_command(char *zLine, ShellState *p){
appendText(&sQuery, zTab, 0);
appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0);
}
appendText(&sSql, zSep, 0);
appendText(&sSql, sQuery.z, '\'');
sQuery.n = 0;
appendText(&sSql, ",", 0);
appendText(&sSql, zTab, '\'');
zSep = "),(";
}
sqlite3_finalize(pStmt);
zSql = sqlite3_mprintf("SELECT lower(hex(sha3_query(%Q,%d))) AS hash;",
sQuery.z, iSize);
if( bSeparate ){
zSql = sqlite3_mprintf(
"%s))"
" SELECT lower(hex(sha3_query(a,%d))) AS hash, b AS label"
" FROM [sha3sum$query]",
sSql.z, iSize);
}else{
zSql = sqlite3_mprintf(
"%s))"
" SELECT lower(hex(sha3_query(group_concat(a,''),%d))) AS hash"
" FROM [sha3sum$query]",
sSql.z, iSize);
}
freeText(&sQuery);
freeText(&sSql);
if( bDebug ){
utf8_printf(p->out, "%s\n", zSql);
}else{