/*
** If string z[0...] contains a valid variable name, return
** the number of characters in that name. Otherwise, return 0.
*/
static int validVarName(const char *z){
int i = 0;
int inBracket = 0;
if( z[0]=='<' ){
inBracket = 1;
z++;
}
if( z[0]==':' && z[1]==':' && fossil_isalpha(z[2]) ){
z += 3;
i += 3;
}else if( fossil_isalpha(z[0]) ){
z ++;
i += 1;
}else{
return 0;
}
while( fossil_isalnum(z[0]) || z[0]=='_' ){
z++;
i++;
}
if( inBracket ){
if( z[0]!='>' ) return 0;
i += 2;
}
return i;
}
/*
** COMMAND: export
**
** Usage: %fossil export --git ?OPTIONS? ?REPOSITORY?
**
** Write an export of all check-ins to standard output. The export is
** written in the git-fast-export file format assuming the --git option is
** provided. The git-fast-export format is currently the only VCS
** interchange format supported, though other formats may be added in
** the future.
**
** Run this command within a checkout. Or use the -R or --repository
** option to specify a Fossil repository to be exported.
**
** Only check-ins are exported using --git. Git does not support tickets
** or wiki or events or attachments, so none of those are exported.
**
** If the "--import-marks FILE" option is used, it contains a list of
** rids to skip.
**
** If the "--export-marks FILE" option is used, the rid of all commits and
** blobs written on exit for use with "--import-marks" on the next run.
**
** Options:
** --export-marks FILE export rids of exported data to FILE
** --import-marks FILE read rids of data to ignore from FILE
** --repository|-R REPOSITORY export the given REPOSITORY
**
** See also: import
*/
void export_cmd(void){
Stmt q, q2, q3;
int i;
Bag blobs, vers;
const char *markfile_in;
const char *markfile_out;
bag_init(&blobs);
bag_init(&vers);
find_option("git", 0, 0); /* Ignore the --git option for now */
markfile_in = find_option("import-marks", 0, 1);
markfile_out = find_option("export-marks", 0, 1);
db_find_and_open_repository(0, 2);
verify_all_options();
if( g.argc!=2 && g.argc!=3 ){ usage("--git ?REPOSITORY?"); }
db_multi_exec("CREATE TEMPORARY TABLE oldblob(rid INTEGER PRIMARY KEY)");
db_multi_exec("CREATE TEMPORARY TABLE oldcommit(rid INTEGER PRIMARY KEY)");
if( markfile_in!=0 ){
Stmt qb,qc;
char line[100];
FILE *f;
f = fossil_fopen(markfile_in, "r");
if( f==0 ){
fossil_fatal("cannot open %s for reading", markfile_in);
}
db_prepare(&qb, "INSERT OR IGNORE INTO oldblob VALUES (:rid)");
db_prepare(&qc, "INSERT OR IGNORE INTO oldcommit VALUES (:rid)");
while( fgets(line, sizeof(line), f)!=0 ){
if( *line == 'b' ){
db_bind_text(&qb, ":rid", line + 1);
db_step(&qb);
db_reset(&qb);
bag_insert(&blobs, atoi(line + 1));
}else if( *line == 'c' ){
db_bind_text(&qc, ":rid", line + 1);
db_step(&qc);
db_reset(&qc);
bag_insert(&vers, atoi(line + 1));
}else{
fossil_fatal("bad input from %s: %s", markfile_in, line);
}
}
db_finalize(&qb);
db_finalize(&qc);
fclose(f);
}
/* Step 1: Generate "blob" records for every artifact that is part
** of a check-in
*/
fossil_binary_mode(stdout);
db_multi_exec("CREATE TEMP TABLE newblob(rid INTEGER KEY, srcid INTEGER)");
db_multi_exec("CREATE INDEX newblob_src ON newblob(srcid)");
db_multi_exec(
"INSERT INTO newblob"
" SELECT DISTINCT fid,"
" CASE WHEN EXISTS(SELECT 1 FROM delta"
" WHERE rid=fid"
" AND NOT EXISTS(SELECT 1 FROM oldblob"
" WHERE srcid=fid))"
" THEN (SELECT srcid FROM delta WHERE rid=fid)"
" ELSE 0"
" END"
" FROM mlink"
" WHERE fid>0 AND NOT EXISTS(SELECT 1 FROM oldblob WHERE rid=fid)");
db_prepare(&q,
"SELECT DISTINCT fid FROM mlink"
" WHERE fid>0 AND NOT EXISTS(SELECT 1 FROM oldblob WHERE rid=fid)");
db_prepare(&q2, "INSERT INTO oldblob VALUES (:rid)");
db_prepare(&q3, "SELECT rid FROM newblob WHERE srcid= (:srcid)");
while( db_step(&q)==SQLITE_ROW ){
int rid = db_column_int(&q, 0);
Blob content;
while( !bag_find(&blobs, rid) ){
content_get(rid, &content);
db_bind_int(&q2, ":rid", rid);
db_step(&q2);
db_reset(&q2);
printf("blob\nmark :%d\ndata %d\n", BLOBMARK(rid), blob_size(&content));
bag_insert(&blobs, rid);
fwrite(blob_buffer(&content), 1, blob_size(&content), stdout);
printf("\n");
blob_reset(&content);
db_bind_int(&q3, ":srcid", rid);
if( db_step(&q3) != SQLITE_ROW ){
db_reset(&q3);
break;
}
rid = db_column_int(&q3, 0);
db_reset(&q3);
}
}
db_finalize(&q);
db_finalize(&q2);
db_finalize(&q3);
/* Output the commit records.
*/
db_prepare(&q,
"SELECT strftime('%%s',mtime), objid, coalesce(comment,ecomment),"
" coalesce(user,euser),"
" (SELECT value FROM tagxref WHERE rid=objid AND tagid=%d)"
" FROM event"
" WHERE type='ci' AND NOT EXISTS (SELECT 1 FROM oldcommit WHERE objid=rid)"
" ORDER BY mtime ASC",
TAG_BRANCH
);
db_prepare(&q2, "INSERT INTO oldcommit VALUES (:rid)");
while( db_step(&q)==SQLITE_ROW ){
Stmt q4;
const char *zSecondsSince1970 = db_column_text(&q, 0);
int ckinId = db_column_int(&q, 1);
const char *zComment = db_column_text(&q, 2);
const char *zUser = db_column_text(&q, 3);
const char *zBranch = db_column_text(&q, 4);
char *zBr;
bag_insert(&vers, ckinId);
db_bind_int(&q2, ":rid", ckinId);
db_step(&q2);
db_reset(&q2);
if( zBranch==0 ) zBranch = "trunk";
zBr = mprintf("%s", zBranch);
for(i=0; zBr[i]; i++){
if( !fossil_isalnum(zBr[i]) ) zBr[i] = '_';
}
printf("commit refs/heads/%s\nmark :%d\n", zBr, COMMITMARK(ckinId));
free(zBr);
printf("committer");
print_person(zUser);
printf(" %s +0000\n", zSecondsSince1970);
if( zComment==0 ) zComment = "null comment";
printf("data %d\n%s\n", (int)strlen(zComment), zComment);
db_prepare(&q3,
"SELECT pid FROM plink"
" WHERE cid=%d AND isprim"
" AND pid IN (SELECT objid FROM event)",
ckinId
);
if( db_step(&q3) == SQLITE_ROW ){
printf("from :%d\n", COMMITMARK(db_column_int(&q3, 0)));
db_prepare(&q4,
"SELECT pid FROM plink"
" WHERE cid=%d AND NOT isprim"
" AND NOT EXISTS(SELECT 1 FROM phantom WHERE rid=pid)"
" ORDER BY pid",
ckinId);
while( db_step(&q4)==SQLITE_ROW ){
printf("merge :%d\n", COMMITMARK(db_column_int(&q4,0)));
}
db_finalize(&q4);
}else{
printf("deleteall\n");
}
db_prepare(&q4,
"SELECT filename.name, mlink.fid, mlink.mperm FROM mlink"
" JOIN filename ON filename.fnid=mlink.fnid"
" WHERE mlink.mid=%d",
ckinId
);
while( db_step(&q4)==SQLITE_ROW ){
const char *zName = db_column_text(&q4,0);
int zNew = db_column_int(&q4,1);
int mPerm = db_column_int(&q4,2);
if( zNew==0)
printf("D %s\n", zName);
else if( bag_find(&blobs, zNew) ) {
const char *zPerm;
switch( mPerm ){
case PERM_LNK: zPerm = "120000"; break;
case PERM_EXE: zPerm = "100755"; break;
default: zPerm = "100644"; break;
}
printf("M %s :%d %s\n", zPerm, BLOBMARK(zNew), zName);
}
}
db_finalize(&q4);
db_finalize(&q3);
printf("\n");
}
db_finalize(&q2);
db_finalize(&q);
bag_clear(&blobs);
manifest_cache_clear();
/* Output tags */
db_prepare(&q,
"SELECT tagname, rid, strftime('%%s',mtime)"
" FROM tagxref JOIN tag USING(tagid)"
" WHERE tagtype=1 AND tagname GLOB 'sym-*'"
);
while( db_step(&q)==SQLITE_ROW ){
const char *zTagname = db_column_text(&q, 0);
char *zEncoded = 0;
int rid = db_column_int(&q, 1);
const char *zSecSince1970 = db_column_text(&q, 2);
int i;
if( rid==0 || !bag_find(&vers, rid) ) continue;
zTagname += 4;
zEncoded = mprintf("%s", zTagname);
for(i=0; zEncoded[i]; i++){
if( !fossil_isalnum(zEncoded[i]) ) zEncoded[i] = '_';
}
printf("tag %s\n", zEncoded);
printf("from :%d\n", COMMITMARK(rid));
printf("tagger <tagger> %s +0000\n", zSecSince1970);
printf("data 0\n");
fossil_free(zEncoded);
}
db_finalize(&q);
bag_clear(&vers);
if( markfile_out!=0 ){
FILE *f;
f = fossil_fopen(markfile_out, "w");
if( f == 0 ){
fossil_fatal("cannot open %s for writing", markfile_out);
}
db_prepare(&q, "SELECT rid FROM oldblob");
while( db_step(&q)==SQLITE_ROW ){
fprintf(f, "b%d\n", db_column_int(&q, 0));
}
db_finalize(&q);
db_prepare(&q, "SELECT rid FROM oldcommit");
while( db_step(&q)==SQLITE_ROW ){
fprintf(f, "c%d\n", db_column_int(&q, 0));
}
db_finalize(&q);
if( ferror(f)!=0 || fclose(f)!=0 ) {
fossil_fatal("error while writing %s", markfile_out);
}
}
}
