Rename pio to periph. (google#27)

Ran:
    git sed 's/pio/periph/g
    git sed 's/gperiph/gpio/g'
    git sed 's/Gperiph/Gpio/g'
    git sed 's/PIO/Periph/g'
    git sed 's/GPeriph/GPIO/g'
    git mv pio.go periph.go
    git mv pio_test.go periph_test.go
    cd cmd
    git mv pio-info periph-info
    git mv pio-setup periph-setup

where 'git sed' is an alias to run sed over all files in git ls-files.

Fixes google#11.

AUTHORS

@@ -1,4 +1,4 @@
-# This is the list of The PIO Authors for copyright purposes.
+# This is the list of The Periph Authors for copyright purposes.
 #
 # This does not necessarily list everyone who has contributed code, since in
 # some cases, their employer may be the copyright holder.  To see the full list

CONTRIBUTORS

@@ -1,5 +1,5 @@
 # This is the official list of people who can contribute
-# (and typically have contributed) code to the pio repository.
+# (and typically have contributed) code to the periph repository.
 # The AUTHORS file lists the copyright holders; this file
 # lists people.  For example, Google employees are listed here
 # but not in AUTHORS, because Google holds the copyright.

Makefile

@@ -1,8 +1,8 @@
-# Copyright 2016 The PIO Authors. All rights reserved.
+# Copyright 2016 The Periph Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
-# This Makefile captures common tasks for the pio library. The hope is that this Makefile can remain
+# This Makefile captures common tasks for the periph library. The hope is that this Makefile can remain
 # simple and straightforward...
 
 # *** This Makefile is a work in progress, please help impove it! ***
@@ -34,13 +34,13 @@ depend:
 # this relatively simple and not descend into makefile hell...
 
 # Get a list of all main.go in cmd subdirs
-# MAINS becomes: cmd/pio-setup/main.go cmd/pio-info/main.go ...
+# MAINS becomes: cmd/periph-setup/main.go cmd/periph-info/main.go ...
 MAINS := $(wildcard cmd/*/main.go)
 # Get a list of all the commands, i.e. names of dirs that contain a main.go
-# CMDS becomes: pio-setup pio-info ...
+# CMDS becomes: periph-setup periph-info ...
 CMDS  := $(patsubst cmd/%/main.go,%,$(MAINS))
 # Get a list of binaries to build
-# BINS becomes: bin/pio-setup-arm bin/pio-info-arm ... bin/pio-setup-arm64 bin/pio-info-arm64 ...
+# BINS becomes: bin/periph-setup-arm bin/periph-info-arm ... bin/periph-setup-arm64 bin/periph-info-arm64 ...
 ARCHS := arm arm64 amd64 win64.exe
 BINS=$(foreach arch,$(ARCHS),$(foreach cmd,$(CMDS),bin/$(cmd)-$(arch)))
 

README.md

@@ -1,27 +1,27 @@
-# pio - Peripherals I/O in Go
+# periph - Peripherals I/O in Go
 
 * [doc/users/](doc/users/) for ready-to-use tools.
-* [doc/apps/](doc/apps/) to use `pio` as a library. The complete API
+* [doc/apps/](doc/apps/) to use `periph` as a library. The complete API
   documentation, including examples, is at
-  [![GoDoc](https://godoc.org/github.com/google/pio?status.svg)](https://godoc.org/github.com/google/pio).
+  [![GoDoc](https://godoc.org/github.com/google/periph?status.svg)](https://godoc.org/github.com/google/periph).
 * [doc/drivers/](doc/drivers/) to expand the list of supported hardware.
 
 
 ## Users
 
-pio includes [many ready-to-use tools](cmd/)! See [doc/users/](doc/users/) for
+periph includes [many ready-to-use tools](cmd/)! See [doc/users/](doc/users/) for
 more info on configuring the host and using the included tools.
 
 ```bash
-go get github.com/google/pio/cmd/...
-pio-info
+go get github.com/google/periph/cmd/...
+periph-info
 headers-list
 ```
 
 
 ## Application developers
 
-For [application developers](doc/apps/), `pio` provides OS-independent bus
+For [application developers](doc/apps/), `periph` provides OS-independent bus
 interfacing. The following gets the current temperature, barometric pressure and
 relative humidity using a bme280:
 
@@ -32,9 +32,9 @@ import (
     "fmt"
     "log"
 
-    "github.com/google/pio/devices"
-    "github.com/google/pio/devices/bme280"
-    "github.com/google/pio/host"
+    "github.com/google/periph/devices"
+    "github.com/google/periph/devices/bme280"
+    "github.com/google/periph/host"
 )
 
 func main() {
@@ -72,10 +72,11 @@ See more examples at [doc/apps/SAMPLES.md](doc/apps/SAMPLES.md)!
 
 ## Contributions
 
-`pio` provides an extensible driver registry and common bus interfaces which are
-explained in more details at [doc/drivers/](doc/drivers/). `pio` is designed to
-work well with drivers living in external repositories so you are not _required_
-to fork the pio repository to load out-of-tree drivers for your platform.
+`periph` provides an extensible driver registry and common bus interfaces which
+are explained in more details at [doc/drivers/](doc/drivers/). `periph` is
+designed to work well with drivers living in external repositories so you are
+not _required_ to fork the periph repository to load out-of-tree drivers for
+your platform.
 
 We gladly accept contributions from device driver developers via GitHub pull
 requests, as long as the author has signed the Google Contributor License.
@@ -95,15 +96,15 @@ details.
      on each platform.
 3. ... yet doesn't get in the way of platform specific code.
    * e.g. A user can use statically typed global variables
-     [rpi.P1_3](https://godoc.org/github.com/google/pio/host/rpi#pkg-variables),
-     [bcm283x.GPIO2](https://godoc.org/github.com/google/pio/host/bcm283x#Pin)
+     [rpi.P1_3](https://godoc.org/github.com/google/periph/host/rpi#pkg-variables),
+     [bcm283x.GPIO2](https://godoc.org/github.com/google/periph/host/bcm283x#Pin)
      or
-     [bcm283x.I2C1_SDA](https://godoc.org/github.com/google/pio/host/bcm283x#pkg-variables)
+     [bcm283x.I2C1_SDA](https://godoc.org/github.com/google/periph/host/bcm283x#pkg-variables)
      to refer to the exact same pin when I²C bus #1 is enabled on a Raspberry
      Pi.
 3. The user can chose to optimize for performance instead of usability.
    * e.g.
-     [apa102.Dev](https://godoc.org/github.com/google/pio/devices/apa102#Dev)
+     [apa102.Dev](https://godoc.org/github.com/google/periph/devices/apa102#Dev)
      exposes both high level
      [draw.Image](https://golang.org/pkg/image/draw/#Image) to draw an image and
      low level [io.Writer](https://golang.org/pkg/io/#Writer) to write raw RGB
@@ -114,15 +115,15 @@ details.
      "component": one for the CPU, one for the board headers, one for each
      bus and sensor, etc.
 5. Extensible via a [driver
-   registry](https://godoc.org/github.com/google/pio#Register).
+   registry](https://godoc.org/github.com/google/periph#Register).
    * e.g. a user can inject a custom driver to expose more pins, headers, etc.
      A USB device (like an FT232H) can expose headers _in addition_ to the
      headers found on the host.
 6. The drivers must use the fastest possible implementation.
    * e.g. both
-     [allwinner](https://godoc.org/github.com/google/pio/host/allwinner)
+     [allwinner](https://godoc.org/github.com/google/periph/host/allwinner)
      and
-     [bcm283x](https://godoc.org/github.com/google/pio/host/bcm283x)
+     [bcm283x](https://godoc.org/github.com/google/periph/host/bcm283x)
      leverage sysfs gpio to expose interrupt driven edge detection, yet use
      memory mapped GPIO registers to perform single-cycle reads and writes.
 

cmd/README.md

@@ -1,15 +1,15 @@
-# pio/cmd - read-to-use executables
+# periph/cmd - read-to-use executables
 
 This directory contains directly usable tools installable via `go get
-github.com/google/pio/cmd/...`.
+github.com/google/periph/cmd/...`.
 
 
 ## Recommended first use
 
-Try first `pio-info`. It will print out if any driver failed to run, for example
-if you have to run as root to access certain drivers.
+Try first `periph-info`. It will print out if any driver failed to run, for
+example if you have to run as root to access certain drivers.
 
-`pio-setup` is a rule based configuration tool that will modify the host to
+`periph-setup` is a rule based configuration tool that will modify the host to
 enable more functionality.
 
 Then run `headers-list` to list all the headers on your board and confirm that
@@ -31,10 +31,10 @@ it](../doc/drivers/CONTRIBUTING.md).
 
 ## Buses
 
-* [gpio-list](gpio-list): Looking for the GPIO pins per functionality? Prints
-  the state of each GPIO pin.
-* [gpio-read](gpio-read): Read the input value of a GPIO pin and change input
-  resistor.
+* [gpio-list](gpio-list): Looking for the GPIO pins per functionality?
+  Prints the state of each GPIO pin.
+* [gpio-read](gpio-read): Read the input value of a GPIO pin and change
+  input resistor.
 * [gpio-write](gpio-write): Change the output value of a GPIO pin.
 * [headers-list](headers-list): Pinrts the location of the pin on the header to
   connect your GPIO. This is the perfect tool to know where to connect the
@@ -48,9 +48,10 @@ it](../doc/drivers/CONTRIBUTING.md).
 
 ## Other
 
-* [pio-info](pio-info): Lists which pio drivers loaded and which failed.
-* [pio-setup](pio-setup): Modifies the host to enable more functionality (load
-  drivers, install udev rules, etc).
+* [periph-info](periph-info): Lists which periph drivers loaded and which
+  failed.
+* [periph-setup](periph-setup): Modifies the host to enable more functionality
+  (load drivers, install udev rules, etc).
 
 
 ## Troubleshooting

cmd/apa102/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -21,12 +21,12 @@ import (
 	"strings"
 	"time"
 
-	"github.com/google/pio/conn/gpio"
-	"github.com/google/pio/conn/spi"
-	"github.com/google/pio/devices"
-	"github.com/google/pio/devices/apa102"
-	"github.com/google/pio/experimental/devices/bitbang"
-	"github.com/google/pio/host"
+	"github.com/google/periph/conn/gpio"
+	"github.com/google/periph/conn/spi"
+	"github.com/google/periph/devices"
+	"github.com/google/periph/devices/apa102"
+	"github.com/google/periph/experimental/devices/bitbang"
+	"github.com/google/periph/host"
 	"github.com/nfnt/resize"
 )
 
@@ -41,7 +41,7 @@ func findFile(name string) string {
 	}
 	for _, p := range strings.Split(os.Getenv("GOPATH"), ":") {
 		if len(p) != 0 {
-			if p2 := filepath.Join(p, "src/github.com/google/pio/cmd/apa102", name); access(p2) {
+			if p2 := filepath.Join(p, "src/github.com/google/periph/cmd/apa102", name); access(p2) {
 				return p2
 			}
 		}

cmd/bme280/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -13,14 +13,14 @@ import (
 	"os"
 	"time"
 
-	"github.com/google/pio/conn/i2c"
-	"github.com/google/pio/conn/i2c/i2ctest"
-	"github.com/google/pio/conn/pins"
-	"github.com/google/pio/conn/spi"
-	"github.com/google/pio/devices"
-	"github.com/google/pio/devices/bme280"
-	"github.com/google/pio/host"
-	"github.com/google/pio/host/headers"
+	"github.com/google/periph/conn/i2c"
+	"github.com/google/periph/conn/i2c/i2ctest"
+	"github.com/google/periph/conn/pins"
+	"github.com/google/periph/conn/spi"
+	"github.com/google/periph/devices"
+	"github.com/google/periph/devices/bme280"
+	"github.com/google/periph/host"
+	"github.com/google/periph/host/headers"
 )
 
 func printPin(fn string, p pins.Pin) {

cmd/gpio-list/README.md

@@ -5,7 +5,7 @@ I²C or SPI pin).
 
 * Looking for the location of the pin on the header to connect your GPIO? Look
   at [headers-list](../headers-list).
-* Looking for pio drivers loaded? Look at [pio-info](../pio-info).
+* Looking for periph drivers loaded? Look at [periph-info](../periph-info).
 
 
 ## Examples
@@ -29,7 +29,7 @@ then running:
     sudo systemctl disable hciuart
 
 For more information for enabling functional pins, see
-[![GoDoc](https://godoc.org/github.com/google/pio/host/rpi?status.svg)](https://godoc.org/github.com/google/pio/host/rpi).
+[![GoDoc](https://godoc.org/github.com/google/periph/host/rpi?status.svg)](https://godoc.org/github.com/google/periph/host/rpi).
 
 
 ### Functional

cmd/gpio-list/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -13,10 +13,10 @@ import (
 	"os"
 	"sort"
 
-	"github.com/google/pio/conn/gpio"
-	"github.com/google/pio/conn/pins"
-	"github.com/google/pio/host"
-	"github.com/google/pio/host/headers"
+	"github.com/google/periph/conn/gpio"
+	"github.com/google/periph/conn/pins"
+	"github.com/google/periph/host"
+	"github.com/google/periph/host/headers"
 )
 
 func printFunc(invalid bool) {

cmd/gpio-read/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -14,8 +14,8 @@ import (
 	"os"
 	"strconv"
 
-	"github.com/google/pio/conn/gpio"
-	"github.com/google/pio/host"
+	"github.com/google/periph/conn/gpio"
+	"github.com/google/periph/host"
 )
 
 func printLevel(l gpio.Level) error {

cmd/gpio-write/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -11,8 +11,8 @@ import (
 	"os"
 	"strconv"
 
-	"github.com/google/pio/conn/gpio"
-	"github.com/google/pio/host"
+	"github.com/google/periph/conn/gpio"
+	"github.com/google/periph/host"
 )
 
 func mainImpl() error {

cmd/headers-list/README.md

@@ -4,7 +4,7 @@ Prints physical headers pins and the associated functionality of each pin.
 
 * Looking for the GPIO pins per functionality? Look at
   [gpio-list](../gpio-list).
-* Looking for pio drivers loaded? Look at [pio-info](../pio-info).
+* Looking for periph drivers loaded? Look at [periph-info](../periph-info).
 
 
 ## Example

cmd/headers-list/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -14,8 +14,8 @@ import (
 	"os"
 	"sort"
 
-	"github.com/google/pio/host"
-	"github.com/google/pio/host/headers"
+	"github.com/google/periph/host"
+	"github.com/google/periph/host/headers"
 )
 
 func printHardware(invalid bool) {

cmd/i2c-list/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -10,10 +10,10 @@ import (
 	"os"
 	"sort"
 
-	"github.com/google/pio/conn/i2c"
-	"github.com/google/pio/conn/pins"
-	"github.com/google/pio/host"
-	"github.com/google/pio/host/headers"
+	"github.com/google/periph/conn/i2c"
+	"github.com/google/periph/conn/pins"
+	"github.com/google/periph/host"
+	"github.com/google/periph/host/headers"
 )
 
 func printPin(fn string, p pins.Pin) {

cmd/i2c/main.go

@@ -1,4 +1,4 @@
-// Copyright 2016 The PIO Authors. All rights reserved.
+// Copyright 2016 The Periph Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
@@ -15,8 +15,8 @@ import (
 	"os"
 	"strconv"
 
-	"github.com/google/pio/conn/i2c"
-	"github.com/google/pio/host"
+	"github.com/google/periph/conn/i2c"
+	"github.com/google/periph/host"
 )
 
 func mainImpl() error {