file-util.go: nuova funzione IsNamedPipe()

LICENSE

@@ -0,0 +1,29 @@
+Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Celestino Amoroso, nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+

file-util.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // file_util.go
 package utils
 
@@ -20,6 +23,13 @@ func FileSize(filePath string) (size int64) {
 	return
 }
 
+// Return true if filePath exists
+func FileExists(filePath string) bool {
+	_, osErr := os.Stat(filePath)
+	return osErr == nil || osErr == os.ErrExist
+}
+
+// Return true if filePath exists and it is a regular file
 func IsRegularFile(filePath string) bool {
 	if filePath != "" {
 		info, err := os.Stat(filePath)
@@ -45,6 +55,22 @@ func IsSymLink(filePath string) bool {
 	return false
 }
 
+func IsSocket(filePath string) bool {
+	if filePath != "" {
+		info, err := os.Stat(filePath)
+		return (err == nil || errors.Is(err, os.ErrExist)) && (info.Mode()&os.ModeSocket != 0)
+	}
+	return false
+}
+
+func IsNamedPipe(filePath string) bool {
+	if filePath != "" {
+		info, err := os.Stat(filePath)
+		return (err == nil || errors.Is(err, os.ErrExist)) && (info.Mode()&os.ModeNamedPipe != 0)
+	}
+	return false
+}
+
 func IsSymLinkByDirEntry(e os.DirEntry) bool {
 	info, _ := e.Info()
 	return info.Mode()&os.ModeSymlink != 0

gzip-util.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // gzip-util.go
 package utils
 

misc-util.go

@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// misc-utis.go
 package utils
 
 import (

os-util.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // os-util.go
 package utils
 

string.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // string
 package utils
 

text-util.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // text-util.go
 package utils
 

time.go

@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// time.go
 package utils
 
 import (

tty-util.go

@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// tty-utils.go
 package utils
 
 import (