diff options
Diffstat (limited to 'fcmd.go')
-rw-r--r-- | fcmd.go | 63 |
1 files changed, 30 insertions, 33 deletions
@@ -38,17 +38,14 @@ var DefaultPerm os.FileMode = 0750 // u=rwx, g=r-x, o=--- | |||
38 | 38 | ||
39 | // Checks if the target exists. | 39 | // Checks if the target exists. |
40 | func IsExist(target string) bool { | 40 | func IsExist(target string) bool { |
41 | _, err := os.Stat(*&target) | 41 | _, err := os.Stat(target) |
42 | if os.IsNotExist(*&err) { | 42 | return os.IsNotExist(err) |
43 | return false | ||
44 | } | ||
45 | return true | ||
46 | } | 43 | } |
47 | 44 | ||
48 | // Checks if the target is a directory. | 45 | // Checks if the target is a directory. |
49 | // Returns false if the target is unreachable. | 46 | // Returns false if the target is unreachable. |
50 | func IsDir(target string) bool { | 47 | func IsDir(target string) bool { |
51 | stat, err := os.Stat(*&target) | 48 | stat, err := os.Stat(target) |
52 | if err != nil { | 49 | if err != nil { |
53 | return false | 50 | return false |
54 | } | 51 | } |
@@ -57,13 +54,13 @@ func IsDir(target string) bool { | |||
57 | 54 | ||
58 | // Checks lexically if the target is hidden (only for Unix based OS). | 55 | // Checks lexically if the target is hidden (only for Unix based OS). |
59 | func IsHidden(target string) bool { | 56 | func IsHidden(target string) bool { |
60 | return strings.HasPrefix(*&target, ".") | 57 | return strings.HasPrefix(target, ".") |
61 | } | 58 | } |
62 | 59 | ||
63 | // Lists separately the names of directories and files inside the target directory. | 60 | // Lists separately the names of directories and files inside the target directory. |
64 | // Hidden files and directories are not listed. | 61 | // Hidden files and directories are not listed. |
65 | func Ls(target string) (dirs, files []string) { | 62 | func Ls(target string) (dirs, files []string) { |
66 | directory, err := ioutil.ReadDir(*&target) | 63 | directory, err := ioutil.ReadDir(target) |
67 | if err != nil { | 64 | if err != nil { |
68 | return | 65 | return |
69 | } | 66 | } |
@@ -72,9 +69,9 @@ func Ls(target string) (dirs, files []string) { | |||
72 | continue | 69 | continue |
73 | } | 70 | } |
74 | if element.IsDir() { | 71 | if element.IsDir() { |
75 | dirs = append(*&dirs, element.Name()) | 72 | dirs = append(dirs, element.Name()) |
76 | } else { | 73 | } else { |
77 | files = append(*&files, element.Name()) | 74 | files = append(files, element.Name()) |
78 | } | 75 | } |
79 | } | 76 | } |
80 | return | 77 | return |
@@ -84,21 +81,21 @@ func Ls(target string) (dirs, files []string) { | |||
84 | // Returned paths are relative to the given root directory. | 81 | // Returned paths are relative to the given root directory. |
85 | // Hidden files and directories are not listed. | 82 | // Hidden files and directories are not listed. |
86 | func Explore(root string) (dirs, files []string) { | 83 | func Explore(root string) (dirs, files []string) { |
87 | dirList, fileList := Ls(*&root) | 84 | dirList, fileList := Ls(root) |
88 | 85 | ||
89 | for _, file := range fileList { | 86 | for _, file := range fileList { |
90 | files = append(*&files, *&file) | 87 | files = append(files, file) |
91 | } | 88 | } |
92 | 89 | ||
93 | for _, dir := range dirList { | 90 | for _, dir := range dirList { |
94 | subRoot := path.Join(*&root, *&dir) | 91 | subRoot := path.Join(root, dir) |
95 | dirs = append(dirs, *&subRoot) | 92 | dirs = append(dirs, subRoot) |
96 | subDirs, subFiles := Explore(*&subRoot) | 93 | subDirs, subFiles := Explore(subRoot) |
97 | for _, subFile := range subFiles { | 94 | for _, subFile := range subFiles { |
98 | files = append(*&files, *&subFile) | 95 | files = append(files, subFile) |
99 | } | 96 | } |
100 | for _, subDir := range subDirs { | 97 | for _, subDir := range subDirs { |
101 | dirs = append(*&dirs, *&subDir) | 98 | dirs = append(dirs, subDir) |
102 | } | 99 | } |
103 | } | 100 | } |
104 | return | 101 | return |
@@ -108,26 +105,26 @@ func Explore(root string) (dirs, files []string) { | |||
108 | // A nonexistent target file is created, otherwise it is truncated. | 105 | // A nonexistent target file is created, otherwise it is truncated. |
109 | // Parent directories are automatically created if they do not exist. | 106 | // Parent directories are automatically created if they do not exist. |
110 | func Cp(source, target string) error { | 107 | func Cp(source, target string) error { |
111 | sourceFile, err := os.Open(*&source) | 108 | sourceFile, err := os.Open(source) |
112 | if err != nil { | 109 | if err != nil { |
113 | return err | 110 | return err |
114 | } | 111 | } |
115 | defer sourceFile.Close() | 112 | defer sourceFile.Close() |
116 | 113 | ||
117 | dir, _ := path.Split(*&target) | 114 | dir, _ := path.Split(target) |
118 | 115 | ||
119 | err = os.MkdirAll(*&dir, DefaultPerm) | 116 | err = os.MkdirAll(dir, DefaultPerm) |
120 | if err != nil { | 117 | if err != nil { |
121 | return err | 118 | return err |
122 | } | 119 | } |
123 | 120 | ||
124 | targetFile, err := os.Create(*&target) | 121 | targetFile, err := os.Create(target) |
125 | if err != nil { | 122 | if err != nil { |
126 | return err | 123 | return err |
127 | } | 124 | } |
128 | defer targetFile.Close() | 125 | defer targetFile.Close() |
129 | 126 | ||
130 | _, err = io.Copy(*&targetFile, *&sourceFile) | 127 | _, err = io.Copy(targetFile, sourceFile) |
131 | return err | 128 | return err |
132 | } | 129 | } |
133 | 130 | ||
@@ -135,56 +132,56 @@ func Cp(source, target string) error { | |||
135 | // A nonexistent target file is created, otherwise it is truncated. | 132 | // A nonexistent target file is created, otherwise it is truncated. |
136 | // Parent directories are automatically created if they do not exist. | 133 | // Parent directories are automatically created if they do not exist. |
137 | func WriteFile(target string, data []byte) error { | 134 | func WriteFile(target string, data []byte) error { |
138 | dir, _ := path.Split(*&target) | 135 | dir, _ := path.Split(target) |
139 | 136 | ||
140 | err := os.MkdirAll(*&dir, DefaultPerm) | 137 | err := os.MkdirAll(dir, DefaultPerm) |
141 | if err != nil { | 138 | if err != nil { |
142 | return err | 139 | return err |
143 | } | 140 | } |
144 | 141 | ||
145 | err = ioutil.WriteFile(*&target, *&data, DefaultPerm) | 142 | err = ioutil.WriteFile(target, data, DefaultPerm) |
146 | return err | 143 | return err |
147 | } | 144 | } |
148 | 145 | ||
149 | // Creates a symbolic link to given source at the target path. | 146 | // Creates a symbolic link to given source at the target path. |
150 | func Lns(source, target string) error { | 147 | func Lns(source, target string) error { |
151 | return os.Symlink(*&source, *&target) | 148 | return os.Symlink(source, target) |
152 | } | 149 | } |
153 | 150 | ||
154 | // Returns the destination of the given symbolic link. | 151 | // Returns the destination of the given symbolic link. |
155 | func Lnl(target string) (string, error) { | 152 | func Lnl(target string) (string, error) { |
156 | return os.Readlink(*&target) | 153 | return os.Readlink(target) |
157 | } | 154 | } |
158 | 155 | ||
159 | // Renames or moves the source file or directory to the target name or path. | 156 | // Renames or moves the source file or directory to the target name or path. |
160 | func Mv(source, target string) error { | 157 | func Mv(source, target string) error { |
161 | return os.Rename(*&source, *&target) | 158 | return os.Rename(source, target) |
162 | } | 159 | } |
163 | 160 | ||
164 | // Removes the target file or the target directory and all files it contains. | 161 | // Removes the target file or the target directory and all files it contains. |
165 | // No error is returned is the target does not exist. | 162 | // No error is returned is the target does not exist. |
166 | func Rm(target string) error { | 163 | func Rm(target string) error { |
167 | return os.RemoveAll(*&target) | 164 | return os.RemoveAll(target) |
168 | } | 165 | } |
169 | 166 | ||
170 | // Changes the current working directory to the target directory. | 167 | // Changes the current working directory to the target directory. |
171 | func Cd(target string) error { | 168 | func Cd(target string) error { |
172 | return os.Chdir(*&target) | 169 | return os.Chdir(target) |
173 | } | 170 | } |
174 | 171 | ||
175 | // Changes the mode of the target file to the given mode. | 172 | // Changes the mode of the target file to the given mode. |
176 | // If the target is a symbolic link, it changes the mode of the link's target. | 173 | // If the target is a symbolic link, it changes the mode of the link's target. |
177 | func Chmod(target string, mode os.FileMode) error { | 174 | func Chmod(target string, mode os.FileMode) error { |
178 | return os.Chmod(*&target, *&mode) | 175 | return os.Chmod(target, mode) |
179 | } | 176 | } |
180 | 177 | ||
181 | // Changes the numeric uid and gid of the target. | 178 | // Changes the numeric uid and gid of the target. |
182 | // If the target is a symbolic link, it changes the uid and gid of the link's target. | 179 | // If the target is a symbolic link, it changes the uid and gid of the link's target. |
183 | func Chown(target string, uid, gid int) error { | 180 | func Chown(target string, uid, gid int) error { |
184 | return os.Chown(*&target, *&uid, *&gid) | 181 | return os.Chown(target, uid, gid) |
185 | } | 182 | } |
186 | 183 | ||
187 | // Changes the access and modification times of the target. | 184 | // Changes the access and modification times of the target. |
188 | func Chtimes(target string, atime time.Time, mtime time.Time) error { | 185 | func Chtimes(target string, atime time.Time, mtime time.Time) error { |
189 | return os.Chtimes(*&target, *&atime, *&mtime) | 186 | return os.Chtimes(target, atime, mtime) |
190 | } | 187 | } |