// Discover discovers plugins.
//
// Search the directory of the executable, then the plugins directory, and
// finally the CWD, in that order. Any conflicts will overwrite previously
// found plugins, in that order.
// Hence, the priority order is the reverse of the search order - i.e., the
// CWD has the highest priority.
func (c *config) Discover() error {
// First, look in the same directory as the executable.
exePath, err := osext.Executable()
if err != nil {
log.Printf("[ERR] Error loading exe directory: %s", err)
} else {
if err := c.discover(filepath.Dir(exePath)); err != nil {
return err
}
}
// Next, look in the plugins directory.
dir, err := packer.ConfigDir()
if err != nil {
log.Printf("[ERR] Error loading config directory: %s", err)
} else {
if err := c.discover(filepath.Join(dir, "plugins")); err != nil {
return err
}
}
// Next, look in the CWD.
if err := c.discover("."); err != nil {
return err
}
// Finally, try to use an internal plugin. Note that this will not override
// any previously-loaded plugins.
if err := c.discoverInternal(); err != nil {
return err
}
return nil
}
// Discover discovers plugins.
//
// Search the directory of the executable, then the plugins directory, and
// finally the CWD, in that order. Any conflicts will overwrite previously
// found plugins, in that order.
// Hence, the priority order is the reverse of the search order - i.e., the
// CWD has the highest priority.
func (c *config) Discover() error {
// If we are already inside a plugin process we should not need to
// discover anything.
if os.Getenv(plugin.MagicCookieKey) == plugin.MagicCookieValue {
return nil
}
// First, look in the same directory as the executable.
exePath, err := osext.Executable()
if err != nil {
log.Printf("[ERR] Error loading exe directory: %s", err)
} else {
if err := c.discover(filepath.Dir(exePath)); err != nil {
return err
}
}
// Next, look in the plugins directory.
dir, err := packer.ConfigDir()
if err != nil {
log.Printf("[ERR] Error loading config directory: %s", err)
} else {
if err := c.discover(filepath.Join(dir, "plugins")); err != nil {
return err
}
}
// Next, look in the CWD.
if err := c.discover("."); err != nil {
return err
}
// Finally, try to use an internal plugin. Note that this will not override
// any previously-loaded plugins.
if err := c.discoverInternal(); err != nil {
return err
}
return nil
}
// runCheckpoint runs a HashiCorp Checkpoint request. You can read about
// Checkpoint here: https://github.com/hashicorp/go-checkpoint.
func runCheckpoint(c *config) {
// If the user doesn't want checkpoint at all, then return.
if c.DisableCheckpoint {
log.Printf("[INFO] Checkpoint disabled. Not running.")
checkpointResult <- nil
return
}
configDir, err := packer.ConfigDir()
if err != nil {
log.Printf("[ERR] Checkpoint setup error: %s", err)
checkpointResult <- nil
return
}
version := Version
if VersionPrerelease != "" {
version += fmt.Sprintf("-%s", VersionPrerelease)
}
signaturePath := filepath.Join(configDir, "checkpoint_signature")
if c.DisableCheckpointSignature {
log.Printf("[INFO] Checkpoint signature disabled")
signaturePath = ""
}
resp, err := checkpoint.Check(&checkpoint.CheckParams{
Product: "packer",
Version: version,
SignatureFile: signaturePath,
CacheFile: filepath.Join(configDir, "checkpoint_cache"),
})
if err != nil {
log.Printf("[ERR] Checkpoint error: %s", err)
resp = nil
}
checkpointResult <- resp
}
func TestStepTempDir_notmpdir(t *testing.T) {
tempenv := "PACKER_TMP_DIR"
oldenv := os.Getenv(tempenv)
defer os.Setenv(tempenv, oldenv)
os.Setenv(tempenv, "")
dir1 := testStepTempDir_impl(t)
cd, err := packer.ConfigDir()
if err != nil {
t.Fatalf("bad ConfigDir")
}
td := filepath.Join(cd, "tmp")
os.Setenv(tempenv, td)
dir2 := testStepTempDir_impl(t)
if filepath.Dir(dir1) != filepath.Dir(dir2) {
t.Fatalf("temp base directories do not match: %s %s", filepath.Dir(dir1), filepath.Dir(dir2))
}
}