specmgr.cpp #1

/*******************************************************************************

Copyright (c) 2007-2011, Perforce Software, Inc.  All rights reserved.

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modification, are permitted provided that the following conditions are met:

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    notice, this list of conditions and the following disclaimer.

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    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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/*******************************************************************************
 * Name         : specmgr.cc
 *
 * Description  : Ruby bindings for the Perforce API. Class for handling
 *                Perforce specs. This class provides other classes with
 *                generic support for parsing and formatting Perforce
 *                specs.
 *
 ******************************************************************************/
#include <ctype.h>
#include <ruby.h>
#include "p4utils.h"
#include "undefdups.h"
#include <p4/clientapi.h>
#include <p4/strops.h>
#include <p4/spec.h>
#include <p4/strtable.h>
#include "p4rubyconf.h"
#include "gc_hack.h"
#include "p4rubydebug.h"
#include "p4specdata.h"
#include "specmgr.h"

struct defaultspec {
    const char *type;
    const char *spec;
} speclist[] = {
    {
        "branch",
        "Branch;code:301;rq;ro;fmt:L;len:32;;"
        "Update;code:302;type:date;ro;fmt:L;len:20;;"
        "Access;code:303;type:date;ro;fmt:L;len:20;;"
        "Owner;code:304;fmt:R;len:32;;"
        "Description;code:306;type:text;len:128;;"
        "Options;code:309;type:line;len:32;val:"
            "unlocked/locked;;"
        "View;code:311;type:wlist;words:2;len:64;;"
    },
    {
        "changeX",
        "Change;code:201;rq;ro;fmt:L;seq:1;len:10;;"
        "Date;code:202;type:date;ro;fmt:R;seq:3;len:20;;"
        "Client;code:203;ro;fmt:L;seq:2;len:32;;"
        "User;code:204;ro;fmt:L;seq:4;len:32;;"
        "Status;code:205;ro;fmt:R;seq:5;len:10;;"
        "Type;code:211;seq:6;type:select;fmt:L;len:10;"
            "val:public/restricted;;"
        "ImportedBy;code:212;type:line;ro;fmt:L;len:32;;"
        "Identity;code:213;type:line;;"
        "Description;code:206;type:text;rq;;"
        "Jobs;code:209;type:wlist;words:2;len:32;;"
        "Files;code:210;type:llist;len:64;;"
    },
    {
        "change",
        "Change;code:201;rq;ro;fmt:L;seq:1;len:10;;"
        "Date;code:202;type:date;ro;fmt:R;seq:3;len:20;;"
        "Client;code:203;ro;fmt:L;seq:2;len:32;;"
        "User;code:204;ro;fmt:L;seq:4;len:32;;"
        "Status;code:205;ro;fmt:R;seq:5;len:10;;"
        "Type;code:211;seq:6;type:select;fmt:L;len:10;"
            "val:public/restricted;;"
        "Description;code:206;type:text;rq;seq:7;;"
        "JobStatus;code:207;fmt:I;type:select;seq:9;;"
        "Jobs;code:208;type:wlist;seq:8;len:32;;"
        "Files;code:210;type:llist;len:64;;"
    },
    {
        "client",
        "Client;code:301;rq;ro;seq:1;len:32;;"
        "Update;code:302;type:date;ro;seq:2;fmt:L;len:20;;"
        "Access;code:303;type:date;ro;seq:4;fmt:L;len:20;;"
        "Owner;code:304;seq:3;fmt:R;len:32;;"
        "Host;code:305;seq:5;fmt:R;len:32;;"
        "Description;code:306;type:text;len:128;;"
        "Root;code:307;rq;type:line;len:64;;"
        "AltRoots;code:308;type:llist;len:64;;"
        "Options;code:309;type:line;len:64;val:"
            "noallwrite/allwrite,noclobber/clobber,nocompress/compress,"
            "unlocked/locked,nomodtime/modtime,normdir/rmdir;;"
        "SubmitOptions;code:313;type:select;fmt:L;len:25;val:"
            "submitunchanged/submitunchanged+reopen/revertunchanged/"
            "revertunchanged+reopen/leaveunchanged/leaveunchanged+reopen;;"
        "LineEnd;code:310;type:select;fmt:L;len:12;val:"
            "local/unix/mac/win/share;;"
        "Stream;code:314;type:line;len:64;;"
        "StreamAtChange;code:316;type:line;len:64;;"
        "ServerID;code:315;type:line;ro;len:64;;"
        "View;code:311;type:wlist;words:2;len:64;;"
        "ChangeView;code:317;type:llist;len:64;;"
    },
    {
        "clientX",
        "Client;code:301;rq;ro;seq:1;len:32;;"
        "Update;code:302;type:date;ro;seq:2;fmt:L;len:20;;"
        "Access;code:303;type:date;ro;seq:4;fmt:L;len:20;;"
        "Owner;code:304;seq:3;fmt:R;len:32;;"
        "Host;code:305;seq:5;fmt:R;len:32;;"
        "Description;code:306;type:text;len:128;;"
        "Root;code:307;rq;type:line;len:64;;"
        "AltRoots;code:308;type:llist;len:64;;"
        "Options;code:309;type:line;len:64;val:"
            "noallwrite/allwrite,noclobber/clobber,nocompress/compress,"
            "unlocked/locked,nomodtime/modtime,normdir/rmdir;;"
        "SubmitOptions;code:313;type:select;fmt:L;len:25;val:"
            "submitunchanged/submitunchanged+reopen/revertunchanged/"
            "revertunchanged+reopen/leaveunchanged/leaveunchanged+reopen;;"
        "LineEnd;code:310;type:select;fmt:L;len:12;val:"
            "local/unix/mac/win/share;;"
        "View;code:311;type:wlist;words:2;len:64;;"
    },
    {
        "clientSpecing021",
        "Client;code:301;rq;ro;len:32;;"
        "Update;code:302;type:date;ro;len:20;;"
        "Access;code:303;type:date;ro;len:20;;"
        "Owner;code:304;len:32;;"
        "Host;code:305;len:32;;"
        "Description;code:306;type:text;len:128;;"
        "Root;code:307;rq;type:line;len:64;;"
        "AltRoots;code:308;type:text;len:64;;"
        "Options;code:309;type:line;len:64;val:"
            "noallwrite/allwrite,noclobber/clobber,nocompress/compress,"
            "unlocked/locked,nomodtime/modtime,normdir/rmdir;;"
        "LineEnd;code:310;type:select;len:12;val:local/unix/mac/win/share;;"
        "View;code:311;type:wlist;words:2;len:64;;"
    },
    {
        "depot",
        "Depot;code:251;rq;ro;len:32;;"
        "Owner;code:252;len:32;;"
        "Date;code:253;type:date;ro;len:20;;"
        "Description;code:254;type:text;len:128;;"
        "Type;code:255;rq;len:10;;"
        "Address;code:256;len:64;;"
        "Suffix;code:258;len:64;;"
        "Map;code:257;rq;len:64;;"
        "SpecMap;code:259;type:wlist;len:64;;"
    },
    {
        "group",
        "Group;code:401;rq;ro;len:32;;"
        "MaxResults;code:402;type:word;len:12;;"
        "MaxScanRows;code:403;type:word;len:12;;"
        "MaxLockTime;code:407;type:word;len:12;;"
        "Timeout;code:406;type:word;len:12;;"
        "PasswordTimeout;code:409;type:word;len:12;;"
        "LdapConfig;code:410;type:line;len:128;;"
        "LdapSearchQuery;code:411;type:line;len:128;;"
        "LdapUserAttribute;code:412;type:line;len:128;;"
        "Subgroups;code:404;type:wlist;len:32;opt:default;;"
        "Owners;code:408;type:wlist;len:32;opt:default;;"
        "Users;code:405;type:wlist;len:32;opt:default;;"
    },
    {
        "job",
        "Job;code:101;rq;len:32;;"
        "Status;code:102;type:select;rq;len:10;"
            "pre:open;val:open/suspended/closed;;"
        "User;code:103;rq;len:32;pre:$user;;"
        "Date;code:104;type:date;ro;len:20;pre:$now;;"
        "Description;code:105;type:text;rq;pre:$blank;;"
    },
    {
        "label",
        "Label;code:301;rq;ro;fmt:L;len:32;;"
        "Update;code:302;type:date;ro;fmt:L;len:20;;"
        "Access;code:303;type:date;ro;fmt:L;len:20;;"
        "Owner;code:304;fmt:R;len:32;;"
        "Description;code:306;type:text;len:128;;"
        "Options;code:309;type:line;len:64;val:"
            "unlocked/locked,noautoreload/autoreload;;"
        "Revision;code:312;type:word;words:1;len:64;;"
        "ServerID;code:315;type:line;ro;len:64;;"
        "View;code:311;type:wlist;len:64;;"
    },
    {
        "ldap",
        "Name;code:801;rq;len:32;;"
        "Host;code:802;rq;type:word;words:1;len:128;;"
        "Port;code:803;rq;type:word;words:1;len:5;;"
        "Encryption;code:804;rq;len:10;val:"
            "none/ssl/tls;;"
        "BindMethod;code:805;rq;len:10;val:"
            "simple/search/sasl;;"
        "SimplePattern;code:806;type:line;len:128;;"
        "SearchBaseDN;code:807;type:line;len:128;;"
        "SearchFilter;code:808;type:line;len:128;;"
        "SearchScope;code:809;len:10;val:"
            "baseonly/children/subtree;;"
        "SearchBindDN;code:810;type:line;len:128;;"
        "SearchPasswd;code:811;type:line;len:128;;"
        "SaslRealm;code:812;type:word;words:1;len:128;;"
        "GroupBaseDN;code:813;type:line;len:128;;"
        "GroupSearchFilter;code:814;type:line;len:128;;"
        "GroupSearchScope;code:815;len:10;val:"
            "baseonly/children/subtree;;"
    },
    {
        "license",
        "License;code:451;len:32;;"
        "License-Expires;code:452;len:10;;"
        "Support-Expires;code:453;len:10;;"
        "Customer;code:454;type:line;len:128;;"
        "Application;code:455;len:32;;"
        "IPaddress;code:456;len:24;;"
        "IPservice;code:461;type:wlist;len:24;;"
        "Platform;code:457;len:32;;"
        "Clients;code:458;len:8;;"
        "Users;code:459;len:8;;"
        "Files;code:460;len:8;;"
    },
    {
        "protect",
        "Protections;code:501;type:wlist;words:5;opt:default;len:64;;"
    },
    {
        "remote",
        "RemoteID;code:851;rq;ro;len:32;;"
        "Address;code:852;rq;type:line;len:32;;"
        "Owner;code:853;fmt:R;len:32;;"
        "Options;code:854;type:line;len:32;val:"
            "unlocked/lockednocompress/compress;;"
        "Update;code:855;type:date;ro;fmt:L;len:20;;"
        "Access;code:856;type:date;ro;fmt:L;len:20;;"
        "Description;code:857;type:text;len:128;;"
        "LastFetch;code:858;fmt:L;len:10;;"
        "LastPush;code:859;fmt:L;len:10;;"
        "DepotMap;code:860;type:wlist;words:2;len:64;;"
    },
    {
        "specW",
        "Fields;code:351;type:wlist;words:5;rq;;"
        "Required;code:357;type:wlist;;"
        "Readonly;code:358;type:wlist;;"
        "Words;code:352;type:wlist;words:2;;"
        "Formats;code:353;type:wlist;words:3;;"
        "Values;code:354;type:wlist;words:2;;"
        "Presets;code:355;type:wlist;words:2;;"
        "Comments;code:356;type:text;;"
    },
    {
        "spec",
        "Fields;code:351;type:wlist;words:5;rq;;"
        "Words;code:352;type:wlist;words:2;;"
        "Formats;code:353;type:wlist;words:3;;"
        "Values;code:354;type:wlist;words:2;;"
        "Presets;code:355;type:wlist;words:2;;"
        "Comments;code:356;type:text;;"
    },
    {
        "stream",
        "Stream;code:701;rq;ro;len:64;;"
        "Update;code:705;type:date;ro;fmt:L;len:20;;"
        "Access;code:706;type:date;ro;fmt:L;len:20;;"
        "Owner;code:704;len:32;;"
        "Name;code:703;rq;type:line;len:32;;"
        "Parent;code:702;rq;len:64;;"
        "Type;code:708;rq;len:32;;"
        "Description;code:709;type:text;len:128;;"
        "Options;code:707;type:line;len:64;val:"
            "allsubmit/ownersubmit,unlocked/locked,"
            "toparent/notoparent,fromparent/nofromparent,"
            "mergedown/mergeany;;"
        "Paths;code:710;rq;type:wlist;words:2;maxwords:3;len:64;;"
        "Remapped;code:711;type:wlist;words:2;len:64;;"
        "Ignored;code:712;type:wlist;words:1;len:64;;"
        "View;code:713;type:wlist;words:2;len:64;;"
        "ChangeView;code:714;type:llist;ro;len:64;;"
    },
    {
        "triggers",
        "Triggers;code:551;type:wlist;words:4;len:64;opt:default;"
    },
    {
       "typemap",
        "TypeMap;code:601;type:wlist;words:2;len:64;opt:default;"
    },
    {
        "user",
        "User;code:651;rq;ro;seq:1;len:32;;"
        "Type;code:659;ro;fmt:R;len:10;;"
        "Email;code:652;fmt:R;rq;seq:3;len:32;;"
        "Update;code:653;fmt:L;type:date;ro;seq:2;len:20;;"
        "Access;code:654;fmt:L;type:date;ro;len:20;;"
        "FullName;code:655;fmt:R;type:line;rq;len:32;;"
        "JobView;code:656;type:line;len:64;;"
        "Password;code:657;len:32;;"
        "AuthMethod;code:662;fmt:L;len:10;val:perforce/ldap;;"
        "Reviews;code:658;type:wlist;len:64;;"
    },
    {
        "server",
        "ServerID;code:751;rq;ro;len:32;;"
        "Type;code:752;rq;len:32;;"
        "Name;code:753;type:line;len:32;;"
        "Address;code:754;type:line;len:32;;"
        "ExternalAddress;code:755;type:line;len:32;;"
        "Services;code:756;rq;len:128;;"
        "Description;code:757;type:text;len:128;;"
        "User;code:761;type:line;len:64;;"
        "ClientDataFilter;code:758;type:wlist;len:64;;"
        "RevisionDataFilter;code:759;type:wlist;len:64;;"
        "ArchiveDataFilter;code:760;type:wlist;len:64;;"
    },
    { 0, 0 }
};

SpecMgr::SpecMgr()
{
    debug = 0;
    specs = 0;
    Reset();
}

SpecMgr::~SpecMgr()
{
    delete specs;
}

void
SpecMgr::AddSpecDef( const char *type, StrPtr &specDef )
{
    if( specs->GetVar( type ) )
        specs->RemoveVar( type );
    specs->SetVar( type, specDef );
}

void
SpecMgr::AddSpecDef( const char *type, const char *specDef )
{
    if( specs->GetVar( type ) )
        specs->RemoveVar( type );
    specs->SetVar( type, specDef );
}


void
SpecMgr::Reset()
{
    delete specs;
    specs = new StrBufDict;

    for( struct defaultspec *sp = &speclist[ 0 ]; sp->type; sp++ )
        AddSpecDef( sp->type, sp->spec );

}

int
SpecMgr::HaveSpecDef( const char *type )
{
    return specs->GetVar( type ) != 0;
}

//
// Convert a Perforce StrDict into a Ruby hash. Convert multi-level
// data (Files0, Files1 etc. ) into (nested) array members of the hash.
//

VALUE
SpecMgr::StrDictToHash( StrDict *dict, VALUE hash )
{
    StrRef      var, val;
    int         i;

    if( hash == Qnil )
        hash = rb_hash_new();

    for ( i = 0; dict->GetVar( i, var, val ); i++ )
    {
        if ( var == "specdef" || var == "func" || var == "specFormatted" )
            continue;

        InsertItem( hash, &var, &val );
    }
    return hash;
}

//
// Convert a Perforce StrDict into a P4::Spec object
//

VALUE
SpecMgr::StrDictToSpec( StrDict *dict, StrPtr *specDef )
{

    // This converts it to a string, and then to a hash, so we go from one
    // type of dictionary to another, via an intermediate form (a StrBuf).

    Error               e;
    SpecDataTable       dictData( dict );
#if P4APIVER_ID >= 513538
    Spec                s( specDef->Text(), "", &e );
#else
    Spec                s( specDef->Text(), "" );
#endif
    StrBuf              form;

    if( e.Test() ) return Qfalse;

    // Format the StrDict into a StrBuf object
    s.Format( &dictData, &form );

    // Now parse the StrBuf into a new P4::Spec object
    VALUE               spec = NewSpec( specDef );
    SpecDataRuby        hashData( spec );

    s.ParseNoValid( form.Text(), &hashData, &e );
    if( e.Test() ) return Qfalse;

    // Now see if there are any extraTag fields as we'll need to
    // add those fields into our output. Just iterate over them
    // extracting the fields and inserting them as we go.
    int i = 0;
    StrRef et("extraTag" );
    for( i = 0; ; i++ )
    {
        StrBuf tag;
        StrPtr *var;
        StrPtr *val;

        tag << et << i;
        if( !(var = dict->GetVar( tag ) ) )
            break;

        val = dict->GetVar( *var );
        if( !val ) continue;

        InsertItem( spec, var, val );
    }

    return spec;
}

VALUE
SpecMgr::StringToSpec( const char *type, const char *form, Error *e )
{

    StrPtr *            specDef = specs->GetVar( type );
    VALUE               hash = NewSpec( specDef );
    SpecDataRuby        specData( hash );
#if P4APIVER_ID >= 513538
    Spec                s( specDef->Text(), "", e );
#else
    Spec                s( specDef->Text(), "" );
#endif

    if( !e->Test() )
        s.ParseNoValid( form, &specData, e );

    if ( e->Test() )
        return Qfalse;

    return hash;
}


//
// Format routine. updates a StrBuf object with the form content.
// The StrBuf can then be converted to a Ruby string where required.
//
void
SpecMgr::SpecToString( const char *type, VALUE hash, StrBuf &b, Error *e )
{

    StrBuf      buf;
    StrPtr *    specDef = specs->GetVar( type );
    if ( !specDef )
    {
        e->Set( E_FAILED, "No specdef available. Cannot convert hash to a "
                          "Perforce form" );
        return;
    }

    SpecDataRuby        specData( hash );
#if P4APIVER_ID >= 513538
    Spec                s( specDef->Text(), "", e );
#else
    Spec                s( specDef->Text(), "" );
#endif

    if( e->Test() ) return;

    s.Format( &specData, &b );
}

//
// This method returns a hash describing the valid fields in the spec. To
// make it easy on our users, we map the lowercase name to the name defined
// in the spec. Thus, the users can always user lowercase, and if the field
// should be in mixed case, it will be. See P4::Spec::method_missing
//

VALUE
SpecMgr::SpecFields( const char *type )
{
    return SpecFields( specs->GetVar( type ) );
}

VALUE
SpecMgr::SpecFields( StrPtr *specDef )
{
    if( !specDef ) return Qnil;

    //
    // Here we abuse the fact that SpecElem::tag is public, even though it's
    // only supposed to be public to SpecData's subclasses. It's hard to
    // see that changing anytime soon, and it makes this so simple and
    // reliable. So...
    //
    VALUE       hash = rb_hash_new();
    Error       e;

#if P4APIVER_ID >= 513538
    Spec        s( specDef->Text(), "", &e );
#else
    Spec        s( specDef->Text(), "" );
#endif
    if( e.Test() ) return Qnil;

    for( int i = 0; i < s.Count(); i++ )
    {
        StrBuf          k;
        StrBuf          v;
        SpecElem *      se = s.Get( i );

        v = se->tag;
        k = v;
        StrOps::Lower( k );

        rb_hash_aset(hash,
                    P4Utils::ruby_string( k.Text(), k.Length() ),
                    P4Utils::ruby_string( v.Text(), v.Length() ) );
    }
    return hash;
}

//
// Split a key into its base name and its index. i.e. for a key "how1,0"
// the base name is "how" and they index is "1,0". We work backwards from
// the end of the key looking for the first char that is neither a
// digit, nor a comma.
//

void
SpecMgr::SplitKey( const StrPtr *key, StrBuf &base, StrBuf &index )
{
    int i = 0;

    base = *key;
    index = "";
    for ( i = key->Length(); i; i-- )
    {
        char    prev = (*key)[ i-1 ];
        if ( !isdigit( prev ) && prev != ',' )
        {
            base.Set( key->Text(), i );
            index.Set( key->Text() + i );
            break;
        }
    }
}

//
// Insert an element into the response structure. The element may need to
// be inserted into an array nested deeply within the enclosing hash.
//

void
SpecMgr::InsertItem( VALUE hash, const StrPtr *var, const StrPtr *val )
{
    VALUE       ary = 0;
    VALUE       tary = 0;
    VALUE       key;
    ID          idLength = rb_intern( "length" );
    StrBuf      base, index;
    StrRef      comma( "," );

    SplitKey( var, base, index );

    // If there's no index, then we insert into the top level hash
    // but if the key is already defined then we need to rename the key. This
    // is probably one of those special keys like otherOpen which can be
    // both an array element and a scalar. The scalar comes last, so we
    // just rename it to "otherOpens" to avoid trashing the previous key
    // value
    if ( index == "" )
{
        ID idHasKey     = rb_intern( "has_key?");
        ID idPlus       = rb_intern( "+" );

        key =  P4Utils::ruby_string( var->Text() );
        if ( rb_funcall( hash, idHasKey, 1, key ) == Qtrue )
            key = rb_funcall( key, idPlus, 1,  P4Utils::ruby_string( "s" ) );

        if( P4RDB_DATA )
            fprintf( stderr, "... %s -> %s\n", StringValuePtr( key ), val->Text() );

        rb_hash_aset( hash, key,  P4Utils::ruby_string( val->Text() ) );
        return;
    }

    //
    // Get or create the parent array from the hash.
    //
    key =  P4Utils::ruby_string( base.Text() );
    ary = rb_hash_aref( hash, key );

    if ( Qnil == ary )
    {
        ary = rb_ary_new();
        rb_hash_aset( hash, key, ary );
    }
    else if( rb_obj_is_kind_of( ary, rb_cArray ) != Qtrue )
    {
        //
        // There's an index in our var name, but the name is already defined
        // and the value it contains is not an array. This means we've got a
        // name collision. This can happen in 'p4 diff2' for example, when
        // one file gets 'depotFile' and the other gets 'depotFile2'. In
        // these cases it makes sense to keep the structure flat so we
        // just use the raw variable name.
        //
        if( P4RDB_DATA )
            fprintf( stderr, "... %s -> %s\n", var->Text(), val->Text() );

        rb_hash_aset( hash,  P4Utils::ruby_string( var->Text() ) ,
                             P4Utils::ruby_string( val->Text() ) );
        return;
}

    // The index may be a simple digit, or it could be a comma separated
    // list of digits. For each "level" in the index, we need a containing
    // array.
    if( P4RDB_DATA )
        fprintf( stderr, "... %s -> [", base.Text() );

    for( const char *c = 0 ; ( c = index.Contains( comma ) ); )
    {
        StrBuf  level;
        level.Set( index.Text(), c - index.Text() );
        index.Set( c + 1 );

        // Found another level so we need to get/create a nested array
        // under the current entry. We use the level as an index so that
        // missing entries are left empty deliberately.

        tary = rb_ary_entry( ary, level.Atoi() );
        if ( ! RTEST( tary ) )
{
            tary = rb_ary_new();
            rb_ary_store( ary, level.Atoi(), tary );
        }
        if( P4RDB_DATA )
            fprintf( stderr, "%s][", level.Text() );
        ary = tary;
    }
    int pos = index.Atoi();

    if( P4RDB_DATA )
        fprintf( stderr, "%d] = %s\n", pos, val->Text() );

    rb_ary_store( ary, pos,  P4Utils::ruby_string( val->Text() )  );
}

//
// Create a new P4::Spec object and return it.
//

VALUE
SpecMgr::NewSpec( StrPtr *specDef )
{
    ID          idNew           = rb_intern( "new" );
    ID          idP4            = rb_intern( "P4" );
    ID          idP4Spec        = rb_intern( "Spec" );
    VALUE       cP4             = rb_const_get_at( rb_cObject, idP4 );
    VALUE       cP4Spec         = rb_const_get_at( cP4, idP4Spec );
    VALUE       fields          = SpecFields( specDef );

    return rb_funcall( cP4Spec, idNew, 1, fields );
}