9f82b75e57
* removed packer.Cache and references since packer.Cache is never used except in the download step. The download step now uses the new func packer.CachePath(targetPath) for this, the behavior is the same. * removed download code from packer that was reimplemented into the go-getter library: progress bar, http download restart, checksuming from file, skip already downloaded files, symlinking, make a download cancellable by context. * on windows if packer is running without symlinking rights and we are getting a local file, the file will be copied instead to avoid errors. * added unit tests for step_download that are now CI tested on windows, mac & linux. * files are now downloaded under cache dir `sha1(filename + "?checksum=" + checksum) + file_extension` * since the output dir is based on the source url and the checksum, when the checksum fails, the file is auto deleted. * a download file is protected and locked by a file lock, * updated docs * updated go modules and vendors
19 lines
405 B
Go
19 lines
405 B
Go
// +build linux
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// +build !appengine,!ppc64,!ppc64le
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package isatty
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import (
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"syscall"
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"unsafe"
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)
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const ioctlReadTermios = syscall.TCGETS
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// IsTerminal return true if the file descriptor is terminal.
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func IsTerminal(fd uintptr) bool {
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var termios syscall.Termios
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_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
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return err == 0
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}
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