Add the ".ar x" command to the shell. For extracting the contents of sqlar

archives.

FossilOrigin-Name: 0cc699d14adfe8c7b7be50c180186562861806c47425c80c935bce43ee5c5c12
This commit is contained in:
dan 2017-12-07 21:03:33 +00:00
parent fd0245d771
commit 25c1218e73
4 changed files with 128 additions and 38 deletions

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@ -30,6 +30,17 @@
#include "sqlite3ext.h"
SQLITE_EXTENSION_INIT1
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <time.h>
#include <utime.h>
#define FSDIR_SCHEMA "CREATE TABLE x(name,mode,mtime,data,dir HIDDEN)"
@ -69,44 +80,91 @@ static void readfileFunc(
readFileContents(context, zName);
}
static void ctxErrorMsg(sqlite3_context *ctx, const char *zFmt, ...){
char *zMsg = 0;
va_list ap;
va_start(ap, zFmt);
zMsg = sqlite3_vmprintf(zFmt, ap);
sqlite3_result_error(ctx, zMsg, -1);
sqlite3_free(zMsg);
va_end(ap);
}
/*
** Implementation of the "writefile(X,Y)" SQL function. The argument Y
** is written into file X. The number of bytes written is returned. Or
** NULL is returned if something goes wrong, such as being unable to open
** file X for writing.
** Implementation of the "writefile(W,X[,Y]])" SQL function.
**
** The argument X is written into file W. The number of bytes written is
** returned. Or NULL is returned if something goes wrong, such as being unable
** to open file X for writing.
*/
static void writefileFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
FILE *out;
const char *z;
sqlite3_int64 rc;
const char *zFile;
mode_t mode = 0;
if( argc<2 || argc>3 ){
sqlite3_result_error(context,
"wrong number of arguments to function writefile()", -1
);
return;
}
(void)(argc); /* Unused parameter */
zFile = (const char*)sqlite3_value_text(argv[0]);
if( zFile==0 ) return;
out = fopen(zFile, "wb");
if( out==0 ) return;
z = (const char*)sqlite3_value_blob(argv[1]);
if( z==0 ){
rc = 0;
}else{
rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
if( argc>=3 ){
sqlite3_result_int(context, 0);
mode = sqlite3_value_int(argv[2]);
}
if( S_ISLNK(mode) ){
const char *zTo = (const char*)sqlite3_value_text(argv[1]);
if( symlink(zTo, zFile)<0 ){
ctxErrorMsg(context, "failed to create symlink: %s", zFile);
return;
}
}else{
if( S_ISDIR(mode) ){
if( mkdir(zFile, mode) ){
ctxErrorMsg(context, "failed to create directory: %s", zFile);
return;
}
}else{
sqlite3_int64 nWrite = 0;
const char *z;
int rc = 0;
FILE *out = fopen(zFile, "wb");
if( out==0 ){
if( argc>2 ){
ctxErrorMsg(context, "failed to open file for writing: %s", zFile);
}
return;
}
z = (const char*)sqlite3_value_blob(argv[1]);
if( z ){
sqlite3_int64 n = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
nWrite = sqlite3_value_bytes(argv[1]);
if( nWrite!=n ){
ctxErrorMsg(context, "failed to write file: %s", zFile);
rc = 1;
}
}
fclose(out);
if( rc ) return;
sqlite3_result_int64(context, nWrite);
}
if( argc>2 && chmod(zFile, mode & 0777) ){
ctxErrorMsg(context, "failed to chmod file: %s", zFile);
return;
}
}
fclose(out);
sqlite3_result_int64(context, rc);
}
#ifndef SQLITE_OMIT_VIRTUALTABLE
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
/*
*/
typedef struct fsdir_cursor fsdir_cursor;
@ -463,7 +521,7 @@ int sqlite3_fileio_init(
rc = sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0,
readfileFunc, 0, 0);
if( rc==SQLITE_OK ){
rc = sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
rc = sqlite3_create_function(db, "writefile", -1, SQLITE_UTF8, 0,
writefileFunc, 0, 0);
}
if( rc==SQLITE_OK ){

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@ -1,5 +1,5 @@
C Begin\sadding\ssupport\sfor\sthe\ssqlar\sarchive\sformat\sto\sshell.c.\sThere\sis\sno\n"extract"\scommand\sso\sfar,\sonly\s"create".
D 2017-12-07T15:44:29.604
C Add\sthe\s".ar\sx"\scommand\sto\sthe\sshell.\sFor\sextracting\sthe\scontents\sof\ssqlar\narchives.
D 2017-12-07T21:03:33.903
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F Makefile.in 6a879cbf01e37f9eac131414955f71774b566502d9a57ded1b8585b507503cb8
@ -269,7 +269,7 @@ F ext/misc/compress.c 122faa92d25033d6c3f07c39231de074ab3d2e83
F ext/misc/csv.c 1a009b93650732e22334edc92459c4630b9fa703397cbb3c8ca279921a36ca11
F ext/misc/dbdump.c 3509fa6b8932d04e932d6b6b827b6a82ca362781b8e8f3c77336f416793e215e
F ext/misc/eval.c f971962e92ebb8b0a4e6b62949463ee454d88fa2
F ext/misc/fileio.c bd2dd9bd22a509f972a4658be18bbfef80aec3cbc3e18948c5e8c5e29ece9939
F ext/misc/fileio.c c84ec9c399657bd95914e7c4e9aefcc148cb86fe3ab7f2102e9557c861dd0d51
F ext/misc/fuzzer.c 7c64b8197bb77b7d64eff7cac7848870235d4c25
F ext/misc/ieee754.c f190d0cc5182529acb15babd177781be1ac1718c
F ext/misc/json1.c dbe086615b9546c156bf32b9378fc09383b58bd17513b866cfd24c1e15281984
@ -474,7 +474,7 @@ F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
F src/resolve.c bbee7e31d369a18a2f4836644769882e9c5d40ef4a3af911db06410b65cb3730
F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
F src/select.c 17e220191860a64a18c084141e1a8b7309e166a6f2d42c02021af27ea080d157
F src/shell.c.in 56c4c091c74af2c7858f2d8af962caa632889596435b17bffbc308058fb305cc
F src/shell.c.in 2f9ae0bee09bdd35922ab7ed264d88e1d7fb34d39d37fc633e6a3a1af60036be
F src/sqlite.h.in 8fd97993d48b50b9bade38c52f12d175942c9497c960905610c7b03a3e4b5818
F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
F src/sqlite3ext.h c02d628cca67f3889c689d82d25c3eb45e2c155db08e4c6089b5840d64687d34
@ -1681,7 +1681,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 8155b5ac850327ea76aba2adf624132f3e05024c973afd218b12f186fc7630e8
R 1ffe38726fc0bf4dcb6cd1bf88405c9b
P c9827a01a6e107f38f85c2b2c1c7a599e443067b106217e965b6936441ca619d
R 4b2bb930e9456062f8914cba7a04cf63
U dan
Z f98960131c8a51264c03e5b1a40bd1b7
Z 4726613d4458219c808274490c55a044

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@ -1 +1 @@
c9827a01a6e107f38f85c2b2c1c7a599e443067b106217e965b6936441ca619d
0cc699d14adfe8c7b7be50c180186562861806c47425c80c935bce43ee5c5c12

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@ -4096,8 +4096,16 @@ static void shellFinalize(
int *pRc,
sqlite3_stmt *pStmt
){
int rc = sqlite3_finalize(pStmt);
if( *pRc==SQLITE_OK ) *pRc = rc;
if( pStmt ){
sqlite3 *db = sqlite3_db_handle(pStmt);
int rc = sqlite3_finalize(pStmt);
if( *pRc==SQLITE_OK ){
if( rc!=SQLITE_OK ){
raw_printf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
}
*pRc = rc;
}
}
}
static void shellReset(
@ -4112,16 +4120,40 @@ static void shellReset(
** Implementation of .ar "eXtract" command.
*/
static int arExtractCommand(ShellState *p, int bVerbose){
const char *zSql =
"SELECT name, mode, mtime, sz, data FROM sqlar";
const char *zSql1 =
"SELECT name, writefile(name, "
"CASE WHEN (data AND sz>=0 AND sz!=length(data)) THEN uncompress(data) "
" ELSE data END, "
"mode) FROM sqlar";
const char *zSql2 = "SELECT name, mtime FROM sqlar";
struct timespec times[2];
sqlite3_stmt *pSql = 0;
int rc = SQLITE_OK;
shellPrepare(p, &rc, zSql, &pSql);
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
}
memset(times, 0, sizeof(times));
times[0].tv_sec = time(0);
shellPrepare(p, &rc, zSql1, &pSql);
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
if( bVerbose ){
raw_printf(stdout, "%s\n", sqlite3_column_text(pSql, 0));
}
}
shellFinalize(&rc, pSql);
shellPrepare(p, &rc, zSql2, &pSql);
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
const char *zPath = (const char*)sqlite3_column_text(pSql, 0);
times[1].tv_sec = (time_t)sqlite3_column_int64(pSql, 1);
if( utimensat(AT_FDCWD, zPath, times, AT_SYMLINK_NOFOLLOW) ){
raw_printf(stderr, "failed to set timestamp for %s\n", zPath);
rc = SQLITE_ERROR;
break;
}
}
shellFinalize(&rc, pSql);
return rc;
}