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Overview
Comment: | Add the built-in edit(VALUE) and edit(VALUE,EDITOR) function to the CLI. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
ef823c47a0ac4f3b001e6c89c38354b4 |
User & Date: | drh 2018-01-11 00:04:00.842 |
Context
2018-01-11
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00:38 | Update the .help screen in the CLI. Make sure the temporary files for ".open" are not deleted too soon. (check-in: b8d92d8dc2 user: drh tags: trunk) | |
00:04 | Add the built-in edit(VALUE) and edit(VALUE,EDITOR) function to the CLI. (check-in: ef823c47a0 user: drh tags: trunk) | |
2018-01-10
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23:29 | Add the ".once -e" and ".once -x" commands to the CLI, and the ".excel" command that is an alias for ".once -x". (check-in: a6ed5ab9bc user: drh tags: trunk) | |
Changes
Changes to src/shell.c.in.
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1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 | int nVal, sqlite3_value **apVal ){ ShellState *p = (ShellState*)sqlite3_user_data(pCtx); utf8_printf(p->out, "%s\n", sqlite3_value_text(apVal[0])); sqlite3_result_value(pCtx, apVal[0]); } /* ** Save or restore the current output mode */ static void outputModePush(ShellState *p){ p->modePrior = p->mode; memcpy(p->colSepPrior, p->colSeparator, sizeof(p->colSeparator)); | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 | int nVal, sqlite3_value **apVal ){ ShellState *p = (ShellState*)sqlite3_user_data(pCtx); utf8_printf(p->out, "%s\n", sqlite3_value_text(apVal[0])); sqlite3_result_value(pCtx, apVal[0]); } /* ** SQL function: edit(VALUE) ** edit(VALUE,EDITOR) ** ** These steps: ** ** (1) Write VALUE into a temporary file. ** (2) Run program EDITOR on that temporary file. ** (3) Read the temporary file back and return its content as the result. ** (4) Delete the temporary file ** ** If the EDITOR argument is omitted, use the value in the VISUAL ** environment variable. If still there is no EDITOR, through an error. ** ** Also throw an error if the EDITOR program returns a non-zero exit code. */ static void editFunc( sqlite3_context *context, int argc, sqlite3_value **argv ){ const char *zEditor; char *zTempFile = 0; sqlite3 *db; char *zCmd = 0; int bBin; int rc; FILE *f = 0; sqlite3_int64 sz; sqlite3_int64 x; unsigned char *p = 0; if( argc==2 ){ zEditor = (const char*)sqlite3_value_text(argv[1]); }else{ zEditor = getenv("VISUAL"); } if( zEditor==0 ){ sqlite3_result_error(context, "no editor for edit()", -1); return; } if( sqlite3_value_type(argv[0])==SQLITE_NULL ){ sqlite3_result_error(context, "NULL input to edit()", -1); return; } db = sqlite3_context_db_handle(context); zTempFile = 0; sqlite3_file_control(db, 0, SQLITE_FCNTL_TEMPFILENAME, &zTempFile); if( zTempFile==0 ){ sqlite3_uint64 r = 0; sqlite3_randomness(sizeof(r), &r); zTempFile = sqlite3_mprintf("temp%llx", r); if( zTempFile==0 ){ sqlite3_result_error_nomem(context); return; } } bBin = sqlite3_value_type(argv[0])==SQLITE_BLOB; f = fopen(zTempFile, bBin ? "wb" : "w"); if( f==0 ){ sqlite3_result_error(context, "edit() cannot open temp file", -1); goto edit_func_end; } sz = sqlite3_value_bytes(argv[0]); if( bBin ){ x = fwrite(sqlite3_value_blob(argv[0]), 1, sz, f); }else{ x = fwrite(sqlite3_value_text(argv[0]), 1, sz, f); } fclose(f); f = 0; if( x!=sz ){ sqlite3_result_error(context, "edit() could not write the whole file", -1); goto edit_func_end; } zCmd = sqlite3_mprintf("%s \"%s\"", zEditor, zTempFile); if( zCmd==0 ){ sqlite3_result_error_nomem(context); goto edit_func_end; } rc = system(zCmd); sqlite3_free(zCmd); if( rc ){ sqlite3_result_error(context, "EDITOR returned non-zero", -1); goto edit_func_end; } f = fopen(zTempFile, bBin ? "rb" : "r"); if( f==0 ){ sqlite3_result_error(context, "edit() cannot reopen temp file after edit", -1); goto edit_func_end; } fseek(f, 0, SEEK_END); sz = ftell(f); rewind(f); p = sqlite3_malloc64( sz+(bBin==0) ); if( p==0 ){ sqlite3_result_error_nomem(context); goto edit_func_end; } if( bBin ){ x = fread(p, 1, sz, f); }else{ x = fread(p, 1, sz, f); p[sz] = 0; } fclose(f); f = 0; if( x!=sz ){ sqlite3_result_error(context, "could not read back the whole file", -1); goto edit_func_end; } if( bBin ){ sqlite3_result_blob(context, p, sz, sqlite3_free); }else{ sqlite3_result_text(context, (const char*)p, sz, sqlite3_free); } p = 0; edit_func_end: if( f ) fclose(f); unlink(zTempFile); sqlite3_free(zTempFile); sqlite3_free(p); } /* ** Save or restore the current output mode */ static void outputModePush(ShellState *p){ p->modePrior = p->mode; memcpy(p->colSepPrior, p->colSeparator, sizeof(p->colSeparator)); |
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3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 | #endif sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0, shellAddSchemaName, 0, 0); sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0, shellModuleSchema, 0, 0); sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p, shellPutsFunc, 0, 0); if( p->openMode==SHELL_OPEN_ZIPFILE ){ char *zSql = sqlite3_mprintf( "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", p->zDbFilename); sqlite3_exec(p->db, zSql, 0, 0, 0); sqlite3_free(zSql); } } | > > > > | 3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 | #endif sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0, shellAddSchemaName, 0, 0); sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0, shellModuleSchema, 0, 0); sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p, shellPutsFunc, 0, 0); sqlite3_create_function(p->db, "edit", 1, SQLITE_UTF8, 0, editFunc, 0, 0); sqlite3_create_function(p->db, "edit", 2, SQLITE_UTF8, 0, editFunc, 0, 0); if( p->openMode==SHELL_OPEN_ZIPFILE ){ char *zSql = sqlite3_mprintf( "CREATE VIRTUAL TABLE zip USING zipfile(%Q);", p->zDbFilename); sqlite3_exec(p->db, zSql, 0, 0, 0); sqlite3_free(zSql); } } |
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