mirror of
https://github.com/hashicorp/packer.git
synced 2026-09-25 01:04:00 -04:00
Adrien Delorme
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
31 lines
891 B
Go
31 lines
891 B
Go
package packer
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
)
|
|
|
|
var DefaultCacheDir = "packer_cache"
|
|
|
|
// CachePath returns an absolute path to a cache file or directory
|
|
//
|
|
// When the directory is not absolute, CachePath will try to get
|
|
// current working directory to be able to return a full path.
|
|
//
|
|
// CachePath can error in case it cannot find the cwd.
|
|
//
|
|
// ex:
|
|
// PACKER_CACHE_DIR="" CacheDir() => "./packer_cache/
|
|
// PACKER_CACHE_DIR="" CacheDir("foo") => "./packer_cache/foo
|
|
// PACKER_CACHE_DIR="bar" CacheDir("foo") => "./bar/foo
|
|
// PACKER_CACHE_DIR="/home/there" CacheDir("foo", "bar") => "/home/there/foo/bar
|
|
func CachePath(paths ...string) (string, error) {
|
|
cacheDir := DefaultCacheDir
|
|
if cd := os.Getenv("PACKER_CACHE_DIR"); cd != "" {
|
|
cacheDir = cd
|
|
}
|
|
|
|
paths = append([]string{cacheDir}, paths...)
|
|
return filepath.Abs(filepath.Join(paths...))
|
|
}
|