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os file builtins refactored with the package 'file'

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This commit is contained in:
Celestino Amoroso
2026-05-08 10:16:03 +02:00
parent a3c7cf2efa
commit c10053253c
14 changed files with 1011 additions and 221 deletions
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file/coverage.html
+322
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@@ -0,0 +1,322 @@
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>file: Go Coverage Report</title>
<style>
body {
background: black;
color: rgb(80, 80, 80);
}
body, pre, #legend span {
font-family: Menlo, monospace;
font-weight: bold;
}
#topbar {
background: black;
position: fixed;
top: 0; left: 0; right: 0;
height: 42px;
border-bottom: 1px solid rgb(80, 80, 80);
}
#content {
margin-top: 50px;
}
#nav, #legend {
float: left;
margin-left: 10px;
}
#legend {
margin-top: 12px;
}
#nav {
margin-top: 10px;
}
#legend span {
margin: 0 5px;
}
.cov0 { color: rgb(192, 0, 0) }
.cov1 { color: rgb(128, 128, 128) }
.cov2 { color: rgb(116, 140, 131) }
.cov3 { color: rgb(104, 152, 134) }
.cov4 { color: rgb(92, 164, 137) }
.cov5 { color: rgb(80, 176, 140) }
.cov6 { color: rgb(68, 188, 143) }
.cov7 { color: rgb(56, 200, 146) }
.cov8 { color: rgb(44, 212, 149) }
.cov9 { color: rgb(32, 224, 152) }
.cov10 { color: rgb(20, 236, 155) }
</style>
</head>
<body>
<div id="topbar">
<div id="nav">
<select id="files">
<option value="file0">git.portale-stac.it/go-pkg/expr/file/file.go (88.9%)</option>
<option value="file1">git.portale-stac.it/go-pkg/expr/file/reader.go (77.8%)</option>
<option value="file2">git.portale-stac.it/go-pkg/expr/file/writer.go (100.0%)</option>
</select>
</div>
<div id="legend">
<span>not tracked</span>
<span class="cov0">not covered</span>
<span class="cov8">covered</span>
</div>
</div>
<div id="content">
<pre class="file" id="file0" style="display: none">// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// file.go
package file
import (
"os"
"git.portale-stac.it/go-pkg/expr/kern"
)
type Handle interface {
kern.Typer
GetFile() *os.File
GetName() string
Valid() bool
Close() error
}
type handleBase struct {
fh *os.File
}
func (h *handleBase) GetFile() *os.File <span class="cov0" title="0">{
return h.fh
}</span>
func (h *handleBase) GetName() (name string) <span class="cov8" title="1">{
if h.fh != nil </span><span class="cov8" title="1">{
name = h.fh.Name()
}</span>
<span class="cov8" title="1">return</span>
}
func (h *handleBase) Valid() bool <span class="cov8" title="1">{
return h.fh != nil
}</span>
func (h *handleBase) Close() (err error) <span class="cov8" title="1">{
if h.fh != nil </span><span class="cov8" title="1">{
err = h.fh.Close()
h.fh = nil
}</span>
<span class="cov8" title="1">return</span>
}
</pre>
<pre class="file" id="file1" style="display: none">// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// reader.go
package file
import (
"bufio"
"io"
"os"
)
type Reader struct {
// fh *os.File
handleBase
reader *bufio.Reader
}
func NewReader(fh *os.File) *Reader <span class="cov8" title="1">{
return &amp;Reader{handleBase: handleBase{fh: fh}, reader: bufio.NewReader(fh)}
}</span>
func OpenReader(filePath string) (r *Reader, err error) <span class="cov8" title="1">{
var fh *os.File
if fh, err = os.Open(filePath); err == nil </span><span class="cov8" title="1">{
r = NewReader(fh)
}</span>
<span class="cov8" title="1">return</span>
}
func (h *Reader) TypeName() string <span class="cov8" title="1">{
return "fileReader"
}</span>
func (h *Reader) String() string <span class="cov8" title="1">{
return "reader"
}</span>
func (h *Reader) Valid() bool <span class="cov8" title="1">{
return h.handleBase.Valid() &amp;&amp; h.reader != nil
}</span>
func (w *Reader) Close() (err error) <span class="cov8" title="1">{
w.reader = nil
err = w.handleBase.Close()
return
}</span>
func (h *Reader) ReadByte() (b byte, err error) <span class="cov8" title="1">{
if h.reader != nil </span><span class="cov8" title="1">{
b, err = h.reader.ReadByte()
}</span> else<span class="cov0" title="0"> {
err = io.ErrClosedPipe
}</span>
<span class="cov8" title="1">return</span>
}
func (h *Reader) ReadAll() (p []byte, err error) <span class="cov8" title="1">{
if h.reader != nil </span><span class="cov8" title="1">{
p, err = io.ReadAll(h.reader)
}</span> else<span class="cov0" title="0"> {
err = io.ErrClosedPipe
}</span>
<span class="cov8" title="1">return</span>
}
func (h *Reader) ReadString(delim byte) (s string, err error) <span class="cov0" title="0">{
if h.reader != nil </span><span class="cov0" title="0">{
s, err = h.reader.ReadString(delim)
}</span> else<span class="cov0" title="0"> {
err = io.ErrClosedPipe
}</span>
<span class="cov0" title="0">return</span>
}
func (h *Reader) Reset() (err error) <span class="cov8" title="1">{
if h.fh != nil </span><span class="cov8" title="1">{
if _, err = h.fh.Seek(0, 0); err == nil </span><span class="cov8" title="1">{
h.reader.Reset(h.fh)
}</span>
}
<span class="cov8" title="1">return</span>
}
</pre>
<pre class="file" id="file2" style="display: none">// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// writer.go
package file
import (
"bufio"
"fmt"
"os"
)
type Writer struct {
// fh *os.File
handleBase
writer *bufio.Writer
}
func NewWriter(fh *os.File) *Writer <span class="cov8" title="1">{
return &amp;Writer{handleBase: handleBase{fh: fh}, writer: bufio.NewWriter(fh)}
}</span>
func CreateWriter(filePath string) (w *Writer, err error) <span class="cov8" title="1">{
var fh *os.File
if fh, err = os.Create(filePath); err == nil </span><span class="cov8" title="1">{
w = NewWriter(fh)
}</span>
<span class="cov8" title="1">return</span>
}
func AppendWriter(filePath string) (w *Writer, err error) <span class="cov8" title="1">{
var fh *os.File
if fh, err = os.OpenFile(filePath, os.O_APPEND|os.O_WRONLY, 0644); err == nil </span><span class="cov8" title="1">{
w = NewWriter(fh)
}</span>
<span class="cov8" title="1">return</span>
}
func (w *Writer) TypeName() string <span class="cov8" title="1">{
return "fileWriter"
}</span>
func (w *Writer) String() string <span class="cov8" title="1">{
return "writer"
}</span>
func (w *Writer) Valid() bool <span class="cov8" title="1">{
return w.handleBase.Valid() &amp;&amp; w.writer != nil
}</span>
func (w *Writer) Close() (err error) <span class="cov8" title="1">{
var err1 error
if w.writer != nil </span><span class="cov8" title="1">{
err1 = w.Flush()
w.writer = nil
}</span>
<span class="cov8" title="1">if err = w.handleBase.Close(); err == nil </span><span class="cov8" title="1">{
err = err1
}</span>
<span class="cov8" title="1">return</span>
}
func (w *Writer) Flush() (err error) <span class="cov8" title="1">{
if w.writer != nil </span><span class="cov8" title="1">{
err = w.writer.Flush()
}</span>
<span class="cov8" title="1">return</span>
}
func (w *Writer) Write(args ...any) (n int, err error) <span class="cov8" title="1">{
if w.writer != nil </span><span class="cov8" title="1">{
n, err = fmt.Fprint(w.writer, args...)
}</span>
<span class="cov8" title="1">return</span>
}
func (w *Writer) Writef(format string, args ...any) (n int, err error) <span class="cov8" title="1">{
if w.writer != nil </span><span class="cov8" title="1">{
n, err = fmt.Fprintf(w.writer, format, args...)
}</span>
<span class="cov8" title="1">return</span>
}
</pre>
</div>
</body>
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