/*
** 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 to implement the timeline web page
**
*/
#include <string.h>
#include "config.h"
#include "timeline.h"
/*
** Generate a hyperlink to a version.
*/
void hyperlink_to_uuid(const char *zUuid){
char zShortUuid[UUID_SIZE+1];
sprintf(zShortUuid, "%.10s", zUuid);
if( g.okHistory ){
@ <a href="%s(g.zBaseURL)/info/%s(zUuid)">[%s(zShortUuid)]</a>
}else{
@ <b>[%s(zShortUuid)]</b>
}
}
/*
** Generate a hyperlink that invokes javascript to highlight
** a version on mouseover.
*/
void hyperlink_to_uuid_with_mouseover(
const char *zUuid, /* The UUID to display */
const char *zIn, /* Javascript proc for mouseover */
const char *zOut, /* Javascript proc for mouseout */
int id /* Argument to javascript procs */
){
char zShortUuid[UUID_SIZE+1];
sprintf(zShortUuid, "%.10s", zUuid);
if( g.okHistory ){
@ <a onmouseover='%s(zIn)("m%d(id)")' onmouseout='%s(zOut)("m%d(id)")'
@ href="%s(g.zBaseURL)/vinfo/%s(zUuid)">[%s(zShortUuid)]</a>
}else{
@ <b onmouseover='%s(zIn)("m%d(id)")' onmouseout='%s(zOut)("m%d(id)")'>
@ [%s(zShortUuid)]</b>
}
}
/*
** Generate a hyperlink to a diff between two versions.
*/
void hyperlink_to_diff(const char *zV1, const char *zV2){
if( g.okHistory ){
if( zV2==0 ){
@ <a href="%s(g.zBaseURL)/diff?v2=%s(zV1)">[diff]</a>
}else{
@ <a href="%s(g.zBaseURL)/diff?v1=%s(zV1)&v2=%s(zV2)">[diff]</a>
}
}
}
/*
** Output a timeline in the web format given a query. The query
** should return these columns:
**
** 0. rid
** 1. UUID
** 2. Date/Time
** 3. Comment string
** 4. User
** 5. Number of non-merge children
** 6. Number of parents
** 7. True if is a leaf
** 8. background color
*/
void www_print_timeline(
Stmt *pQuery,
int *pFirstEvent,
int *pLastEvent,
int (*xCallback)(int, Blob*),
Blob *pArg
){
char zPrevDate[20];
int cnt = 0;
zPrevDate[0] = 0;
db_multi_exec(
"CREATE TEMP TABLE IF NOT EXISTS seen(rid INTEGER PRIMARY KEY);"
"DELETE FROM seen;"
);
@ <table cellspacing=0 border=0 cellpadding=0>
while( db_step(pQuery)==SQLITE_ROW ){
int rid = db_column_int(pQuery, 0);
const char *zUuid = db_column_text(pQuery, 1);
int nPChild = db_column_int(pQuery, 5);
int nParent = db_column_int(pQuery, 6);
int isLeaf = db_column_int(pQuery, 7);
const char *zBgClr = db_column_text(pQuery, 8);
const char *zDate = db_column_text(pQuery, 2);
if( cnt==0 && pFirstEvent ){
*pFirstEvent = rid;
}
if( pLastEvent ){
*pLastEvent = rid;
}
db_multi_exec("INSERT OR IGNORE INTO seen VALUES(%d)", rid);
if( xCallback ){
xCallback(rid, pArg);
}
if( memcmp(zDate, zPrevDate, 10) ){
sprintf(zPrevDate, "%.10s", zDate);
@ <tr><td colspan=3>
@ <table cellpadding=2 border=0>
@ <tr><td bgcolor="#a0b5f4" class="border1">
@ <table cellpadding=2 cellspacing=0 border=0><tr>
@ <td bgcolor="#d0d9f4" class="bkgnd1">%s(zPrevDate)</td>
@ </tr></table>
@ </td></tr></table>
@ </td></tr>
}
@ <tr>
@ <td valign="top">%s(&zDate[11])</td>
@ <td width="20" align="center" valign="top">
@ <font id="m%d(rid)" size="+1" color="white">*</font></td>
if( zBgClr && zBgClr[0] ){
@ <td valign="top" align="left" bgcolor="%h(zBgClr)">
}else{
@ <td valign="top" align="left">
}
hyperlink_to_uuid_with_mouseover(zUuid, "xin", "xout", rid);
if( nParent>1 ){
@ <b>Merge</b>
}
if( nPChild>1 ){
@ <b>Fork</b>
}
if( isLeaf ){
@ <b>Leaf</b>
}
@ %h(db_column_text(pQuery,3))
@ (by %h(db_column_text(pQuery,4)))</td></tr>
}
@ </table>
}
/*
** Generate javascript code that records the parents and children
** of the version rid.
*/
static int save_parentage_javascript(int rid, Blob *pOut){
const char *zSep;
Stmt q;
db_prepare(&q, "SELECT pid FROM plink WHERE cid=%d", rid);
zSep = "";
blob_appendf(pOut, "parentof[\"m%d\"] = [", rid);
while( db_step(&q)==SQLITE_ROW ){
int pid = db_column_int(&q, 0);
blob_appendf(pOut, "%s\"m%d\"", zSep, pid);
zSep = ",";
}
db_finalize(&q);
blob_appendf(pOut, "];\n");
db_prepare(&q, "SELECT cid FROM plink WHERE pid=%d", rid);
zSep = "";
blob_appendf(pOut, "childof[\"m%d\"] = [", rid);
while( db_step(&q)==SQLITE_ROW ){
int pid = db_column_int(&q, 0);
blob_appendf(pOut, "%s\"m%d\"", zSep, pid);
zSep = ",";
}
db_finalize(&q);
blob_appendf(pOut, "];\n");
return 0;
}
/*
** Return a pointer to a constant string that forms the basis
** for a timeline query for the WWW interface.
*/
const char *timeline_query_for_www(void){
static const char zBaseSql[] =
@ SELECT
@ blob.rid,
@ uuid,
@ datetime(event.mtime,'localtime'),
@ coalesce(ecomment, comment),
@ coalesce(euser, user),
@ (SELECT count(*) FROM plink WHERE pid=blob.rid AND isprim=1),
@ (SELECT count(*) FROM plink WHERE cid=blob.rid),
@ NOT EXISTS (SELECT 1 FROM plink WHERE pid=blob.rid),
@ coalesce(bgcolor, brbgcolor)
@ FROM event JOIN blob
@ WHERE blob.rid=event.objid
;
return zBaseSql;
}
/*
** WEBPAGE: timeline
**
** Query parameters:
**
** d=STARTDATE date in iso8601 notation. dflt: newest event
** n=INTEGER number of events to show. dflt: 25
** e=INTEGER starting event id. dflt: nil
** u=NAME show only events from user. dflt: nil
** a show events after and including. dflt: false
** r show only related events. dflt: false
*/
void page_timeline(void){
Stmt q;
char *zSQL;
Blob scriptInit;
char zDate[100];
const char *zStart = P("d");
int nEntry = atoi(PD("n","20"));
const char *zUser = P("u");
int objid = atoi(PD("e","0"));
int relatedEvents = P("r")!=0;
int afterFlag = P("a")!=0;
int firstEvent;
int lastEvent;
/* To view the timeline, must have permission to read project data.
*/
login_check_credentials();
if( !g.okRead ){ login_needed(); return; }
style_header("Timeline");
if( !g.okHistory &&
db_exists("SELECT 1 FROM user"
" WHERE login='anonymous'"
" AND cap LIKE '%%h%%'") ){
@ <p><b>Note:</b> You will be able to access <u>much</u> more
@ historical information if <a href="%s(g.zBaseURL)/login">login</a>.</p>
}
zSQL = mprintf("%s", timeline_query_for_www());
if( zUser ){
zSQL = mprintf("%z AND event.user=%Q", zSQL, zUser);
}
if( objid ){
char *z = db_text(0, "SELECT datetime(event.mtime) FROM event"
" WHERE objid=%d", objid);
if( z ){
zStart = z;
}
}
if( zStart ){
while( isspace(zStart[0]) ){ zStart++; }
if( zStart[0] ){
zSQL = mprintf("%z AND event.mtime %s julianday(%Q, 'localtime')",
zSQL, afterFlag ? ">=" : "<=", zStart);
}
}
if( relatedEvents && objid ){
db_multi_exec(
"CREATE TEMP TABLE IF NOT EXISTS ok(rid INTEGER PRIMARY KEY)"
);
if( afterFlag ){
compute_descendents(objid, nEntry);
}else{
compute_ancestors(objid, nEntry);
}
zSQL = mprintf("%z AND event.objid IN ok", zSQL);
}
zSQL = mprintf("%z ORDER BY event.mtime DESC LIMIT %d", zSQL, nEntry);
db_prepare(&q, zSQL);
free(zSQL);
zDate[0] = 0;
blob_zero(&scriptInit);
zDate[0] = 0;
www_print_timeline(&q, &firstEvent, &lastEvent,
save_parentage_javascript, &scriptInit);
db_finalize(&q);
if( zStart==0 ){
zStart = zDate;
}
@ <script>
@ var parentof = new Object();
@ var childof = new Object();
cgi_append_content(blob_buffer(&scriptInit), blob_size(&scriptInit));
blob_reset(&scriptInit);
@ function setall(value){
@ for(var x in parentof){
@ setone(x,value);
@ }
@ }
@ setall("#ffffff");
@ function setone(id, clr){
@ if( parentof[id]==null ) return 0;
@ var w = document.getElementById(id);
@ if( w.style.color==clr ){
@ return 0
@ }else{
@ w.style.color = clr
@ return 1
@ }
@ }
@ function xin(id) {
@ setall("#ffffff");
@ setone(id,"#ff0000");
@ set_children(id, "#b0b0b0");
@ set_parents(id, "#b0b0b0");
@ for(var x in parentof[id]){
@ var pid = parentof[id][x]
@ var w = document.getElementById(pid);
@ if( w!=null ){
@ w.style.color = "#000000";
@ }
@ }
@ for(var x in childof[id]){
@ var cid = childof[id][x]
@ var w = document.getElementById(cid);
@ if( w!=null ){
@ w.style.color = "#000000";
@ }
@ }
@ }
@ function xout(id) {
@ /* setall("#000000"); */
@ }
@ function set_parents(id, clr){
@ var plist = parentof[id];
@ if( plist==null ) return;
@ for(var x in plist){
@ var pid = plist[x];
@ if( setone(pid,clr)==1 ){
@ set_parents(pid,clr);
@ }
@ }
@ }
@ function set_children(id,clr){
@ var clist = childof[id];
@ if( clist==null ) return;
@ for(var x in clist){
@ var cid = clist[x];
@ if( setone(cid,clr)==1 ){
@ set_children(cid,clr);
@ }
@ }
@ }
@ </script>
@ <hr>
@ <form method="GET" action="%s(g.zBaseURL)/timeline">
@ Start Date:
@ <input type="text" size="30" value="%h(zStart)" name="d">
@ Number Of Entries:
@ <input type="text" size="4" value="%d(nEntry)" name="n">
@ <br><input type="submit" value="Submit">
@ </form>
@ <form method="GET" action="%s(g.zBaseURL)/timeline">
@ <input type="hidden" value="%d(lastEvent)" name="e">
@ <input type="hidden" value="%d(nEntry)" name="n">
@ <input type="submit" value="Next %d(nEntry) Rows">
@ </form>
@ <form method="GET" action="%s(g.zBaseURL)/timeline">
@ <input type="hidden" value="%d(firstEvent)" name="e">
@ <input type="hidden" value="1" name="a">
@ <input type="hidden" value="%d(nEntry)" name="n">
@ <input type="submit" value="Previous %d(nEntry) Rows">
@ </form>
style_footer();
}
/*
** The input query q selects various records. Print a human-readable
** summary of those records.
**
** Limit the number of entries printed to nLine.
**
** The query should return these columns:
**
** 0. rid
** 1. uuid
** 2. Date/Time
** 3. Comment string and user
** 4. Number of non-merge children
** 5. Number of parents
*/
void print_timeline(Stmt *q, int mxLine){
int nLine = 0;
char zPrevDate[20];
zPrevDate[0] = 0;
while( db_step(q)==SQLITE_ROW && nLine<=mxLine ){
const char *zId = db_column_text(q, 1);
const char *zDate = db_column_text(q, 2);
const char *zCom = db_column_text(q, 3);
int nChild = db_column_int(q, 4);
int nParent = db_column_int(q, 5);
char *zFree = 0;
char zUuid[UUID_SIZE+1];
sprintf(zUuid, "%.10s", zId);
if( memcmp(zDate, zPrevDate, 10) ){
printf("=== %.10s ===\n", zDate);
memcpy(zPrevDate, zDate, 10);
nLine++;
}
if( zCom==0 ) zCom = "";
printf("%.8s ", &zDate[11]);
if( nChild>1 || nParent>1 ){
int n = 0;
char zPrefix[50];
if( nParent>1 ){
sqlite3_snprintf(sizeof(zPrefix), zPrefix, "*MERGE* ");
n = strlen(zPrefix);
}
if( nChild>1 ){
sqlite3_snprintf(sizeof(zPrefix)-n, &zPrefix[n], "*FORK* ");
n = strlen(zPrefix);
}
zFree = sqlite3_mprintf("[%.10s] %s%s", zUuid, zPrefix, zCom);
}else{
zFree = sqlite3_mprintf("[%.10s] %s", zUuid, zCom);
}
nLine += comment_print(zFree, 9, 79);
sqlite3_free(zFree);
}
}
/*
** Return a pointer to a static string that forms the basis for
** a timeline query for display on a TTY.
*/
const char *timeline_query_for_tty(void){
static const char zBaseSql[] =
@ SELECT
@ blob.rid,
@ uuid,
@ datetime(event.mtime,'localtime'),
@ coalesce(ecomment,comment) || ' (by ' || coalesce(euser,user) || ')',
@ (SELECT count(*) FROM plink WHERE pid=blob.rid AND isprim),
@ (SELECT count(*) FROM plink WHERE cid=blob.rid)
@ FROM event, blob
@ WHERE blob.rid=event.objid
;
return zBaseSql;
}
/*
** COMMAND: timeline
**
** Usage: %fossil timeline ?WHEN? ?UUID|DATETIME? ?-n|--count N?
**
** Print a summary of activity going backwards in date and time
** specified or from the current date and time if no arguments
** are given. Show as many as N (default 20) check-ins. The
** WHEN argument can be any unique abbreviation of one of these
** keywords:
**
** before
** after
** descendents | children
** ancestors | parents
**
** The UUID can be any unique prefix of 4 characters or more.
** The DATETIME should be in the ISO8601 format. For
** examples: "2007-08-18 07:21:21". You can also say "current"
** for the current version or "now" for the current time.
*/
void timeline_cmd(void){
Stmt q;
int n, k;
const char *zCount;
char *zOrigin;
char *zDate;
char *zSQL;
int objid = 0;
Blob uuid;
int mode = 1 ; /* 1: before 2:after 3:children 4:parents */
db_find_and_open_repository();
zCount = find_option("n","count",1);
if( zCount ){
n = atoi(zCount);
}else{
n = 20;
}
if( g.argc==4 ){
k = strlen(g.argv[2]);
if( strncmp(g.argv[2],"before",k)==0 ){
mode = 1;
}else if( strncmp(g.argv[2],"after",k)==0 && k>1 ){
mode = 2;
}else if( strncmp(g.argv[2],"descendents",k)==0 ){
mode = 3;
}else if( strncmp(g.argv[2],"children",k)==0 ){
mode = 3;
}else if( strncmp(g.argv[2],"ancestors",k)==0 && k>1 ){
mode = 4;
}else if( strncmp(g.argv[2],"parents",k)==0 ){
mode = 4;
}else{
usage("?WHEN? ?UUID|DATETIME?");
}
zOrigin = g.argv[3];
}else if( g.argc==3 ){
zOrigin = g.argv[2];
}else{
zOrigin = "now";
}
k = strlen(zOrigin);
blob_zero(&uuid);
blob_append(&uuid, zOrigin, -1);
if( strcmp(zOrigin, "now")==0 ){
if( mode==3 || mode==4 ){
fossil_fatal("cannot compute descendents or ancestors of a date");
}
zDate = mprintf("(SELECT julianday('now','utc'))");
}else if( strncmp(zOrigin, "current", k)==0 ){
objid = db_lget_int("checkout",0);
zDate = mprintf("(SELECT mtime FROM plink WHERE cid=%d)", objid);
}else if( name_to_uuid(&uuid, 0)==0 ){
objid = db_int(0, "SELECT rid FROM blob WHERE uuid=%B", &uuid);
zDate = mprintf("(SELECT mtime FROM plink WHERE cid=%d)", objid);
}else{
if( mode==3 || mode==4 ){
fossil_fatal("cannot compute descendents or ancestors of a date");
}
zDate = mprintf("(SELECT julianday(%Q, 'utc'))", zOrigin);
}
zSQL = mprintf("%s AND event.mtime %s %s",
timeline_query_for_tty(),
(mode==1 || mode==4) ? "<=" : ">=",
zDate
);
if( mode==3 || mode==4 ){
db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY)");
if( mode==3 ){
compute_descendents(objid, n);
}else{
compute_ancestors(objid, n);
}
zSQL = mprintf("%z AND blob.rid IN ok", zSQL);
}
zSQL = mprintf("%z ORDER BY event.mtime DESC", zSQL);
db_prepare(&q, zSQL);
print_timeline(&q, n);
db_finalize(&q);
}