go(report_base): add in-text timestamp

report/report.go

@@ -20,8 +20,8 @@ const (
 )
 
 var (
-	//go:embed report_base.tex
+	//go:embed report_base.tmpl
-	reportBase []byte
+	tmplReportBaseFile []byte
 	//go:embed meta.sty
 	metaSty []byte
 	//go:embed report.tmpl
@@ -38,6 +38,32 @@ func GetPicsDir() string {
 	return outPrefix + picsDir
 }
 
+func emitReportBaseTex() error {
+	fname := GetTexDir() + "report_base.tex"
+
+	f, err := os.Create(fname)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	defer f.Close()
+
+	tmplReportBase := template.New("report_base")
+	tmplReportBase = template.Must(tmplReportBase.Parse(string(tmplReportBaseFile)))
+
+	err = tmplReportBase.Execute(f, struct {
+		Timestamp time.Time
+	}{
+		Timestamp: time.Now(),
+	})
+
+	if err != nil {
+		log.Println(err)
+	}
+
+	return nil
+}
+
 func emitReportTex(fname string) error {
 	f, err := os.Create(fname)
 	if err != nil {
@@ -50,11 +76,9 @@ func emitReportTex(fname string) error {
 	tmplReport = template.Must(tmplReport.Parse(string(tmplReportFile)))
 
 	err = tmplReport.Execute(f, struct {
-		ReportBase string
+		Timestamp time.Time
-		Timestamp  time.Time
 	}{
-		ReportBase: string(reportBase),
+		Timestamp: time.Now(),
-		Timestamp:  time.Now(),
 	})
 
 	if err != nil {
@@ -81,9 +105,14 @@ func saveMetaSty() error {
 // SaveAndPrint emits the tex files necessary to compile the report in full
 // (report.tex, meta.sty) and prints the report.tex file to console.
 func SaveAndPrint(doPrint bool) {
-	fname := "report.tex"
+	err := emitReportBaseTex()
+	if err != nil {
+		log.Fatal(err)
+	}
 
-	err := emitReportTex(fname)
+	reportFname := "report.tex"
+
+	err = emitReportTex(reportFname)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -96,7 +125,7 @@ func SaveAndPrint(doPrint bool) {
 	if doPrint {
 		fmt.Fprint(os.Stderr, "\n* printing the report...\n\n")
 
-		fh, err := os.Open(fname)
+		fh, err := os.Open(reportFname)
 		if err != nil {
 			log.Fatal(err)
 		}

report/report.tmpl

@@ -1,4 +1,4 @@
-% Code generated by go generate; DO NOT EDIT.
+% Code generated by math-optim; DO NOT EDIT.
 % This file was generated by robots at
 % {{ .Timestamp }}
 % source: git.dotya.ml/wanderer/math-optim/report/report.tmpl
@@ -8,7 +8,7 @@
 
 % begin report.tmpl
 
-{{ .ReportBase -}}
+\input{out/tex/report_base.tex}
 
 % end report.tmpl
 

report/report_base.tmpl

@@ -36,8 +36,9 @@
 \vspace*{\fill}
 \begin{center}
   \Large
-  This file was generated by robots.\\source:
+  The template of this file was generated by robots at\\
-  \href{https://git.dotya.ml/wanderer/math-optim/}{\texttt{math-optim} project page}
+  \texttt{ {{- .Timestamp -}} }\\
+  source: \href{https://git.dotya.ml/wanderer/math-optim/}{\texttt{math-optim} project page}
 \end{center}
 \vspace*{\fill}