/
writeStats.go
266 lines (217 loc) · 9.03 KB
/
writeStats.go
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/*
Copyright 2018 The pdfcpu Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package pdfcpu
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/pdfcpu/pdfcpu/pkg/log"
"github.com/pkg/errors"
)
func logWriteStats(ctx *Context) {
xRefTable := ctx.XRefTable
if len(xRefTable.Table) != *xRefTable.Size {
if count, mstr := xRefTable.MissingObjects(); count > 0 {
log.Stats.Printf("%d missing objects: %s\n", count, *mstr)
}
}
var nonRefObjs []int
for i := 0; i < *xRefTable.Size; i++ {
entry, found := xRefTable.Find(i)
if !found || entry.Free || ctx.Write.HasWriteOffset(i) {
continue
}
nonRefObjs = append(nonRefObjs, i)
}
// Non referenced objects
ctx.Optimize.NonReferencedObjs = nonRefObjs
l, str := ctx.Optimize.NonReferencedObjsString()
log.Stats.Printf("%d original empty xref entries:\n%s", l, str)
// Duplicate font objects
l, str = ctx.Optimize.DuplicateFontObjectsString()
log.Stats.Printf("%d original redundant font entries: %s", l, str)
// Duplicate image objects
l, str = ctx.Optimize.DuplicateImageObjectsString()
log.Stats.Printf("%d original redundant image entries: %s", l, str)
// Duplicate info objects
l, str = ctx.Optimize.DuplicateInfoObjectsString()
log.Stats.Printf("%d original redundant info entries: %s", l, str)
// ObjectStreams
l, str = ctx.Read.ObjectStreamsString()
log.Stats.Printf("%d original objectStream entries: %s", l, str)
// XRefStreams
l, str = ctx.Read.XRefStreamsString()
log.Stats.Printf("%d original xrefStream entries: %s", l, str)
// Linearization objects
l, str = ctx.LinearizationObjsString()
log.Stats.Printf("%d original linearization entries: %s", l, str)
}
func statsHeadLine() *string {
hl := "name;version;author;creator;producer;src_size (bin|text);src_bin:imgs|fonts|other;dest_size (bin|text);dest_bin:imgs|fonts|other;"
hl += "linearized;hybrid;xrefstr;objstr;pages;objs;missing;garbage;"
hl += "R_Version;R_Extensions;R_PageLabels;R_Names;R_Dests;R_ViewerPrefs;R_PageLayout;R_PageMode;"
hl += "R_Outlines;R_Threads;R_OpenAction;R_AA;R_URI;R_AcroForm;R_Metadata;R_StructTreeRoot;R_MarkInfo;"
hl += "R_Lang;R_SpiderInfo;R_OutputIntents;R_PieceInfo;R_OCProperties;R_Perms;R_Legal;R_Requirements;"
hl += "R_Collection;R_NeedsRendering;"
hl += "P_LastModified;P_Resources;P_MediaBox;P_CropBox;P_BleedBox;P_TrimBox;P_ArtBox;"
hl += "P_BoxColorInfo;P_Contents;P_Rotate;P_Group;P_Thumb;P_B;P_Dur;P_Trans;P_Annots;"
hl += "P_AA;P_Metadata;P_PieceInfo;P_StructParents;P_ID;P_PZ;P_SeparationInfo;P_Tabs;"
hl += "P_TemplateInstantiated;P_PresSteps;P_UserUnit;P_VP;\n"
return &hl
}
func statsLine(ctx *Context) *string {
xRefTable := ctx.XRefTable
version := xRefTable.HeaderVersion.String()
if xRefTable.RootVersion != nil {
version = fmt.Sprintf("%s,%s", version, xRefTable.RootVersion.String())
}
sourceFileSize := ctx.Read.FileSize
sourceBinarySize := ctx.Read.BinaryTotalSize
sourceNonBinarySize := sourceFileSize - sourceBinarySize
sourceSizeStats := fmt.Sprintf("%s (%4.1f%% | %4.1f%%)",
ByteSize(sourceFileSize),
float32(sourceBinarySize)/float32(sourceFileSize)*100,
float32(sourceNonBinarySize)/float32(sourceFileSize)*100)
sourceBinaryImageSize := ctx.Read.BinaryImageSize + ctx.Read.BinaryImageDuplSize
sourceBinaryFontSize := ctx.Read.BinaryFontSize + ctx.Read.BinaryFontDuplSize
sourceBinaryOtherSize := sourceBinarySize - sourceBinaryImageSize - sourceBinaryFontSize
sourceBinaryStats := fmt.Sprintf("%4.1f%% | %4.1f%% | %4.1f%%",
float32(sourceBinaryImageSize)/float32(sourceBinarySize)*100,
float32(sourceBinaryFontSize)/float32(sourceBinarySize)*100,
float32(sourceBinaryOtherSize)/float32(sourceBinarySize)*100)
destFileSize := ctx.Write.FileSize
destBinarySize := ctx.Write.BinaryTotalSize
destNonBinarySize := destFileSize - destBinarySize
destSizeStats := fmt.Sprintf("%s (%4.1f%% | %4.1f%%)",
ByteSize(destFileSize),
float32(destBinarySize)/float32(destFileSize)*100,
float32(destNonBinarySize)/float32(destFileSize)*100)
destBinaryImageSize := ctx.Write.BinaryImageSize
destBinaryFontSize := ctx.Write.BinaryFontSize
destBinaryOtherSize := destBinarySize - destBinaryImageSize - destBinaryFontSize
destBinaryStats := fmt.Sprintf("%4.1f%% | %4.1f%% | %4.1f%%",
float32(destBinaryImageSize)/float32(destBinarySize)*100,
float32(destBinaryFontSize)/float32(destBinarySize)*100,
float32(destBinaryOtherSize)/float32(destBinarySize)*100)
var missingObjs string
if count, mstr := xRefTable.MissingObjects(); count > 0 {
missingObjs = fmt.Sprintf("%d:%s", count, *mstr)
}
var nonreferencedObjs string
if len(ctx.Optimize.NonReferencedObjs) > 0 {
var s []string
for _, o := range ctx.Optimize.NonReferencedObjs {
s = append(s, fmt.Sprintf("%d", o))
}
nonreferencedObjs = fmt.Sprintf("%d:%s", len(ctx.Optimize.NonReferencedObjs), strings.Join(s, ","))
}
line := fmt.Sprintf("%s;%s;%s;%s;%s;%s;%s;%s;%s;%v;%v;%v;%v;%d;%d;%s;%s;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v;%v\n",
filepath.Base(ctx.Read.FileName),
version,
xRefTable.Author,
xRefTable.Creator,
xRefTable.Producer,
sourceSizeStats,
sourceBinaryStats,
destSizeStats,
destBinaryStats,
ctx.Read.Linearized,
ctx.Read.Hybrid,
ctx.Read.UsingXRefStreams,
ctx.Read.UsingObjectStreams,
xRefTable.PageCount,
*xRefTable.Size,
missingObjs,
nonreferencedObjs,
xRefTable.Stats.UsesRootAttr(RootVersion),
xRefTable.Stats.UsesRootAttr(RootExtensions),
xRefTable.Stats.UsesRootAttr(RootPageLabels),
xRefTable.Stats.UsesRootAttr(RootNames),
xRefTable.Stats.UsesRootAttr(RootDests),
xRefTable.Stats.UsesRootAttr(RootViewerPrefs),
xRefTable.Stats.UsesRootAttr(RootPageLayout),
xRefTable.Stats.UsesRootAttr(RootPageMode),
xRefTable.Stats.UsesRootAttr(RootOutlines),
xRefTable.Stats.UsesRootAttr(RootThreads),
xRefTable.Stats.UsesRootAttr(RootOpenAction),
xRefTable.Stats.UsesRootAttr(RootAA),
xRefTable.Stats.UsesRootAttr(RootURI),
xRefTable.Stats.UsesRootAttr(RootAcroForm),
xRefTable.Stats.UsesRootAttr(RootMetadata),
xRefTable.Stats.UsesRootAttr(RootStructTreeRoot),
xRefTable.Stats.UsesRootAttr(RootMarkInfo),
xRefTable.Stats.UsesRootAttr(RootLang),
xRefTable.Stats.UsesRootAttr(RootSpiderInfo),
xRefTable.Stats.UsesRootAttr(RootOutputIntents),
xRefTable.Stats.UsesRootAttr(RootPieceInfo),
xRefTable.Stats.UsesRootAttr(RootOCProperties),
xRefTable.Stats.UsesRootAttr(RootPerms),
xRefTable.Stats.UsesRootAttr(RootLegal),
xRefTable.Stats.UsesRootAttr(RootRequirements),
xRefTable.Stats.UsesRootAttr(RootCollection),
xRefTable.Stats.UsesRootAttr(RootNeedsRendering),
xRefTable.Stats.UsesPageAttr(PageLastModified),
xRefTable.Stats.UsesPageAttr(PageResources),
xRefTable.Stats.UsesPageAttr(PageMediaBox),
xRefTable.Stats.UsesPageAttr(PageCropBox),
xRefTable.Stats.UsesPageAttr(PageBleedBox),
xRefTable.Stats.UsesPageAttr(PageTrimBox),
xRefTable.Stats.UsesPageAttr(PageArtBox),
xRefTable.Stats.UsesPageAttr(PageBoxColorInfo),
xRefTable.Stats.UsesPageAttr(PageContents),
xRefTable.Stats.UsesPageAttr(PageRotate),
xRefTable.Stats.UsesPageAttr(PageGroup),
xRefTable.Stats.UsesPageAttr(PageThumb),
xRefTable.Stats.UsesPageAttr(PageB),
xRefTable.Stats.UsesPageAttr(PageDur),
xRefTable.Stats.UsesPageAttr(PageTrans),
xRefTable.Stats.UsesPageAttr(PageAnnots),
xRefTable.Stats.UsesPageAttr(PageAA),
xRefTable.Stats.UsesPageAttr(PageMetadata),
xRefTable.Stats.UsesPageAttr(PagePieceInfo),
xRefTable.Stats.UsesPageAttr(PageStructParents),
xRefTable.Stats.UsesPageAttr(PageID),
xRefTable.Stats.UsesPageAttr(PagePZ),
xRefTable.Stats.UsesPageAttr(PageSeparationInfo),
xRefTable.Stats.UsesPageAttr(PageTabs),
xRefTable.Stats.UsesPageAttr(PageTemplateInstantiated),
xRefTable.Stats.UsesPageAttr(PagePresSteps),
xRefTable.Stats.UsesPageAttr(PageUserUnit),
xRefTable.Stats.UsesPageAttr(PageVP))
return &line
}
// AppendStatsFile appends a stats line for this xRefTable to the configured csv file name.
func AppendStatsFile(ctx *Context) error {
fileName := ctx.StatsFileName
// if file does not exist, create file
file, err := os.OpenFile(fileName, os.O_APPEND|os.O_WRONLY, 0600)
if err != nil {
if os.IsExist(err) {
return errors.Errorf("can't open %s\n%s", fileName, err)
}
file, err = os.OpenFile(fileName, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
return errors.Errorf("can't create %s\n%s", fileName, err)
}
_, err = file.WriteString(*statsHeadLine())
if err != nil {
return err
}
}
defer func() {
file.Close()
}()
_, err = file.WriteString(*statsLine(ctx))
return err
}