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Diffstat (limited to 'vendor/github.com/mrunalp/fileutils')
| -rw-r--r-- | vendor/github.com/mrunalp/fileutils/LICENSE | 191 | ||||
| -rw-r--r-- | vendor/github.com/mrunalp/fileutils/README.md | 5 | ||||
| -rw-r--r-- | vendor/github.com/mrunalp/fileutils/fileutils.go | 158 | ||||
| -rw-r--r-- | vendor/github.com/mrunalp/fileutils/idtools.go | 49 |
4 files changed, 403 insertions, 0 deletions
diff --git a/vendor/github.com/mrunalp/fileutils/LICENSE b/vendor/github.com/mrunalp/fileutils/LICENSE new file mode 100644 index 000000000..27448585a --- /dev/null +++ b/vendor/github.com/mrunalp/fileutils/LICENSE @@ -0,0 +1,191 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + Copyright 2014 Docker, Inc. + + 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. diff --git a/vendor/github.com/mrunalp/fileutils/README.md b/vendor/github.com/mrunalp/fileutils/README.md new file mode 100644 index 000000000..6cb4140ea --- /dev/null +++ b/vendor/github.com/mrunalp/fileutils/README.md @@ -0,0 +1,5 @@ +# fileutils + +Collection of utilities for file manipulation in golang + +The library is based on docker pkg/archive pkg/idtools but does copies instead of handling archive formats. diff --git a/vendor/github.com/mrunalp/fileutils/fileutils.go b/vendor/github.com/mrunalp/fileutils/fileutils.go new file mode 100644 index 000000000..5a9818a24 --- /dev/null +++ b/vendor/github.com/mrunalp/fileutils/fileutils.go @@ -0,0 +1,158 @@ +package fileutils + +import ( + "fmt" + "io" + "os" + "path/filepath" + "syscall" +) + +// CopyFile copies the file at source to dest +func CopyFile(source string, dest string) error { + si, err := os.Lstat(source) + if err != nil { + return err + } + + st, ok := si.Sys().(*syscall.Stat_t) + if !ok { + return fmt.Errorf("could not convert to syscall.Stat_t") + } + + uid := int(st.Uid) + gid := int(st.Gid) + + // Handle symlinks + if si.Mode()&os.ModeSymlink != 0 { + target, err := os.Readlink(source) + if err != nil { + return err + } + if err := os.Symlink(target, dest); err != nil { + return err + } + } + + // Handle device files + if st.Mode&syscall.S_IFMT == syscall.S_IFBLK || st.Mode&syscall.S_IFMT == syscall.S_IFCHR { + devMajor := int64(major(uint64(st.Rdev))) + devMinor := int64(minor(uint64(st.Rdev))) + mode := uint32(si.Mode() & 07777) + if st.Mode&syscall.S_IFMT == syscall.S_IFBLK { + mode |= syscall.S_IFBLK + } + if st.Mode&syscall.S_IFMT == syscall.S_IFCHR { + mode |= syscall.S_IFCHR + } + if err := syscall.Mknod(dest, mode, int(mkdev(devMajor, devMinor))); err != nil { + return err + } + } + + // Handle regular files + if si.Mode().IsRegular() { + sf, err := os.Open(source) + if err != nil { + return err + } + defer sf.Close() + + df, err := os.Create(dest) + if err != nil { + return err + } + defer df.Close() + + _, err = io.Copy(df, sf) + if err != nil { + return err + } + } + + // Chown the file + if err := os.Lchown(dest, uid, gid); err != nil { + return err + } + + // Chmod the file + if !(si.Mode()&os.ModeSymlink == os.ModeSymlink) { + if err := os.Chmod(dest, si.Mode()); err != nil { + return err + } + } + + return nil +} + +// CopyDirectory copies the files under the source directory +// to dest directory. The dest directory is created if it +// does not exist. +func CopyDirectory(source string, dest string) error { + fi, err := os.Stat(source) + if err != nil { + return err + } + + // Get owner. + st, ok := fi.Sys().(*syscall.Stat_t) + if !ok { + return fmt.Errorf("could not convert to syscall.Stat_t") + } + + // We have to pick an owner here anyway. + if err := MkdirAllNewAs(dest, fi.Mode(), int(st.Uid), int(st.Gid)); err != nil { + return err + } + + return filepath.Walk(source, func(path string, info os.FileInfo, err error) error { + if err != nil { + return err + } + + // Get the relative path + relPath, err := filepath.Rel(source, path) + if err != nil { + return nil + } + + if info.IsDir() { + // Skip the source directory. + if path != source { + // Get the owner. + st, ok := info.Sys().(*syscall.Stat_t) + if !ok { + return fmt.Errorf("could not convert to syscall.Stat_t") + } + + uid := int(st.Uid) + gid := int(st.Gid) + + if err := os.Mkdir(filepath.Join(dest, relPath), info.Mode()); err != nil { + return err + } + + if err := os.Lchown(filepath.Join(dest, relPath), uid, gid); err != nil { + return err + } + } + return nil + } + + return CopyFile(path, filepath.Join(dest, relPath)) + }) +} + +// Gives a number indicating the device driver to be used to access the passed device +func major(device uint64) uint64 { + return (device >> 8) & 0xfff +} + +// Gives a number that serves as a flag to the device driver for the passed device +func minor(device uint64) uint64 { + return (device & 0xff) | ((device >> 12) & 0xfff00) +} + +func mkdev(major int64, minor int64) uint32 { + return uint32(((minor & 0xfff00) << 12) | ((major & 0xfff) << 8) | (minor & 0xff)) +} diff --git a/vendor/github.com/mrunalp/fileutils/idtools.go b/vendor/github.com/mrunalp/fileutils/idtools.go new file mode 100644 index 000000000..161aec8f5 --- /dev/null +++ b/vendor/github.com/mrunalp/fileutils/idtools.go @@ -0,0 +1,49 @@ +package fileutils + +import ( + "os" + "path/filepath" +) + +// MkdirAllNewAs creates a directory (include any along the path) and then modifies +// ownership ONLY of newly created directories to the requested uid/gid. If the +// directories along the path exist, no change of ownership will be performed +func MkdirAllNewAs(path string, mode os.FileMode, ownerUID, ownerGID int) error { + // make an array containing the original path asked for, plus (for mkAll == true) + // all path components leading up to the complete path that don't exist before we MkdirAll + // so that we can chown all of them properly at the end. If chownExisting is false, we won't + // chown the full directory path if it exists + var paths []string + if _, err := os.Stat(path); err != nil && os.IsNotExist(err) { + paths = []string{path} + } else if err == nil { + // nothing to do; directory path fully exists already + return nil + } + + // walk back to "/" looking for directories which do not exist + // and add them to the paths array for chown after creation + dirPath := path + for { + dirPath = filepath.Dir(dirPath) + if dirPath == "/" { + break + } + if _, err := os.Stat(dirPath); err != nil && os.IsNotExist(err) { + paths = append(paths, dirPath) + } + } + + if err := os.MkdirAll(path, mode); err != nil && !os.IsExist(err) { + return err + } + + // even if it existed, we will chown the requested path + any subpaths that + // didn't exist when we called MkdirAll + for _, pathComponent := range paths { + if err := os.Chown(pathComponent, ownerUID, ownerGID); err != nil { + return err + } + } + return nil +} |