p4result.cpp #5

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/*******************************************************************************
 * Name		: p4result.cc
 *
 * Author	: Tony Smith <tony@perforce.com> or <tony@smee.org>
 *
 * Description	: Ruby class for holding results of Perforce commands 
 *
 ******************************************************************************/

#include <ruby.h>
#include "undefdups.h"
#include <clientapi.h>
#include "gc_hack.h"
#include "p4result.h"

P4Result::P4Result()
{
    output = rb_ary_new();
    warnings = rb_ary_new();
    errors = rb_ary_new();
}


void
P4Result::Reset()
{
    output = rb_ary_new();
    warnings = rb_ary_new();
    errors = rb_ary_new();
}

void
P4Result::AddOutput( const char *msg )
{
    rb_ary_push( output, rb_str_new2( msg ) );

    //
    // Call the ruby thread scheduler to allow another thread to run
    // now. We should perhaps only call this every 'n' times, but I've 
    // no idea what a good value for n might be; so for now at least, n=1
    //
    rb_thread_schedule();
}

void
P4Result::AddOutput( VALUE out )
{
    rb_ary_push( output, out );

    //
    // Call the ruby thread scheduler to allow another thread to run
    // now. We should perhaps only call this every 'n' times, but I've 
    // no idea what a good value for n might be; so for now at least, n=1
    //
    rb_thread_schedule();
}

void
P4Result::AddError( Error *e )
{
    StrBuf	m;
    e->Fmt( &m, EF_PLAIN );

    int s;
    s = e->GetSeverity();

    // 
    // Empty and informational messages are pushed out as output as nothing
    // worthy of error handling has occurred. Warnings go into the warnings
    // list and the rest are lumped together as errors.
    //

    if ( s == E_EMPTY || s == E_INFO )
    {
	AddOutput( m.Text() );
	return;
    }

    if ( s == E_WARN )
	rb_ary_push( warnings, rb_str_new2( m.Text() ) );
    else
	rb_ary_push( errors, rb_str_new2( m.Text() ) );
    //
    // Call the ruby thread scheduler to allow another thread to run
    // now. We should perhaps only call this every 'n' times, but I've 
    // no idea what a good value for n might be; so for now at least, n=1
    //
    rb_thread_schedule();
}

int
P4Result::ErrorCount()
{
    return Length( errors );
}

int
P4Result::WarningCount()
{
    return Length( warnings );
}

void
P4Result::FmtErrors( StrBuf &buf )
{
    Fmt( "[Error]: ", errors, buf );
}

void
P4Result::FmtWarnings( StrBuf &buf )
{
    Fmt( "[Warning]: ", warnings, buf );
}


int
P4Result::Length( VALUE ary )
{
    ID		iLength;
    VALUE 	len;

    iLength = rb_intern( "length" );

    len = rb_funcall( ary, iLength, 0 );
    return NUM2INT( len );
}

void
P4Result::GCMark()
{
    rb_gc_mark( output );
    rb_gc_mark( errors );
    rb_gc_mark( warnings );
}


void
P4Result::Fmt( const char *label, VALUE ary, StrBuf &buf )
{
    ID		idJoin;
    VALUE	s1;
    StrBuf	csep;
    VALUE	rsep;

    buf.Clear();
    // If the array is empty, then we just return
    if( ! Length( ary ) ) return;

    // Not empty, so we'll format it. 
    idJoin 	= rb_intern( "join" );
 
    // This is the string we'll use to prefix each entry in the array
    csep << "\n\t" << label;
    rsep = rb_str_new2( csep.Text() );

    // Since Array#join() won't prefix the first element with the separator
    // we'll have to do it manually.
    buf << csep;

    // Join the array elements together, and append the result to the buffer
    s1 		= rb_funcall( ary, idJoin, 1, rsep );
    buf << STR2CSTR( s1 );

    return;
}