/*
** Copyright (c) 2007 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public
** License version 2 as published by the Free Software Foundation.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
**
** You should have received a copy of the GNU General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA 02111-1307, USA.
**
** Author contact information:
** drh@hwaci.com
** http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file contains code used to create new branches within a repository.
*/
#include "config.h"
#include "branch.h"
#include <assert.h>
void branch_new(void){
int vid, nvid, noSign;
Stmt q;
char *zBranch, *zUuid, *zDate, *zComment;
const char *zColor;
Blob manifest;
Blob mcksum; /* Self-checksum on the manifest */
Blob cksum1, cksum2; /* Before and after commit checksums */
Blob cksum1b; /* Checksum recorded in the manifest */
noSign = find_option("nosign","",0)!=0;
db_must_be_within_tree();
noSign = db_get_int("omit-ci-sig", 0)|noSign;
zColor = find_option("bgcolor","c",1);
verify_all_options();
/* fossil branch new name */
if( g.argc<3 ){
usage("branch new ?-bgcolor COLOR BRANCH-NAME");
}
zBranch = g.argv[3];
if( zBranch==0 || zBranch[0]==0 ){
fossil_panic("branch name cannot be empty");
}
user_select();
db_begin_transaction();
if( unsaved_changes() ){
fossil_panic("there are uncommitted changes. please commit first");
}
vid = db_lget_int("checkout", 0);
vfile_aggregate_checksum_disk(vid, &cksum1);
/* Create our new manifest */
blob_zero(&manifest);
zComment = mprintf("Branch created %s", zBranch);
blob_appendf(&manifest, "C %F\n", zComment);
zDate = db_text(0, "SELECT datetime('now')");
zDate[10] = 'T';
blob_appendf(&manifest, "D %s\n", zDate);
db_prepare(&q,
"SELECT pathname, uuid FROM vfile JOIN blob ON vfile.mrid=blob.rid"
" WHERE NOT deleted AND vfile.vid=%d"
" ORDER BY 1", vid);
while( db_step(&q)==SQLITE_ROW ){
const char *zName = db_column_text(&q, 0);
const char *zUuid = db_column_text(&q, 1);
blob_appendf(&manifest, "F %F %s\n", zName, zUuid);
}
db_finalize(&q);
zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", vid);
blob_appendf(&manifest, "P %s\n", zUuid);
blob_appendf(&manifest, "R %b\n", &cksum1);
if( zColor!=0 ){
if( strcmp("bgcolor",zBranch)>=0 ){
blob_appendf(&manifest, "T *%F *\n", zBranch);
blob_appendf(&manifest, "T *bgcolor * %F\n", zColor);
}else{
blob_appendf(&manifest, "T *bgcolor * %F\n", zColor);
blob_appendf(&manifest, "T *%F *\n", zBranch);
}
}else{
blob_appendf(&manifest, "T *%F *\n", zBranch);
}
/* Cancel any tags that propagate */
db_prepare(&q,
"SELECT tagname"
" FROM tagxref JOIN tag ON tagxref.tagid=tag.tagid"
" WHERE rid=%d AND tagtype=2", vid);
while( db_step(&q)==SQLITE_ROW ){
const char *zTagname = db_column_text(&q, 0);
blob_appendf(&manifest, "T -%s *\n", zTagname);
}
db_finalize(&q);
blob_appendf(&manifest, "U %F\n", g.zLogin);
md5sum_blob(&manifest, &mcksum);
blob_appendf(&manifest, "Z %b\n", &mcksum);
if( !noSign && clearsign(&manifest, &manifest) ){
Blob ans;
blob_zero(&ans);
prompt_user("unable to sign manifest. continue [y/N]? ", &ans);
if( blob_str(&ans)[0]!='y' ){
db_end_transaction(1);
exit(1);
}
}
/*blob_write_to_file(&manifest, "manifest.new");*/
nvid = content_put(&manifest, 0, 0);
if( nvid==0 ){
fossil_panic("trouble committing manifest: %s", g.zErrMsg);
}
db_multi_exec("INSERT OR IGNORE INTO unsent VALUES(%d)", nvid);
manifest_crosslink(nvid, &manifest);
content_deltify(vid, nvid, 0);
zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", nvid);
printf("Branch Version: %s\n", zUuid);
printf("\n");
printf("Notice: working copy not updated to the new branch. If\n");
printf(" you wish to work on the new branch, update to\n");
printf(" that branch first:\n");
printf("\n");
printf(" fossil update %s\n", zBranch);
/* Verify that the manifest checksum matches the expected checksum */
vfile_aggregate_checksum_repository(nvid, &cksum2);
vfile_aggregate_checksum_manifest(nvid, &cksum2, &cksum1b);
if( blob_compare(&cksum1, &cksum1b) ){
fossil_panic("manifest checksum does not agree with manifest: "
"%b versus %b", &cksum1, &cksum1b);
}
/* Verify that the commit did not modify any disk images. */
vfile_aggregate_checksum_disk(vid, &cksum2);
if( blob_compare(&cksum1, &cksum2) ){
fossil_panic("tree checksums before and after commit do not match");
}
/* Clear the undo/redo stack */
undo_reset();
/* Commit */
db_end_transaction(0);
}
/*
** COMMAND: branch
**
** Usage: %fossil branch SUBCOMMAND ... ?-R|--repository FILE?
**
** Run various subcommands on the branches of the open repository o
** of the repository identified by the -R or --repository option.
**
** %fossil branch new ?-bgcolor COLOR BRANCH-NAME
**
** Create a new branch BRANCH-NAME. You can optionally give
** a commit message and branch color.
**
** %fossil branch list
**
** List all branches
**
*/
void branch_cmd(void){
int n;
db_find_and_open_repository();
if( g.argc<3 ){
usage("new|list ...");
}
n = strlen(g.argv[2]);
if( n>=2 && strncmp(g.argv[2],"new",n)==0 ){
branch_new();
}else if( n>=2 && strncmp(g.argv[2],"list",n)==0 ){
fossil_panic("branch list is not yet completed");
}else{
fossil_panic("branch subcommand should be one of: "
"new list");
}
}