Simplify docker.#Run

* `cmd` is renamed to `command` for readability
  * `script` is removed. Feature moves up the stack (bash.#Run,
    python.#Run)

Signed-off-by: Solomon Hykes <solomon@dagger.io>

pkg/universe.dagger.io/docker/test/build-multi-steps.cue

@@ -16,19 +16,28 @@ dagger.#Plan & {
 			steps: [
 				alpine.#Build,
 				docker.#Run & {
-					script: """
+					command: {
+						name: "sh"
+						flags: "-c": """
 							echo -n hello > /bar.txt
-						"""
+							"""
+					}
 				},
 				docker.#Run & {
-					script: """
+					command: {
+						name: "sh"
+						flags: "-c": """
 							echo -n $(cat /bar.txt) world > /foo.txt
-						"""
+							"""
+					}
 				},
 				docker.#Run & {
-					script: """
+					command: {
+						name: "sh"
+						flags: "-c": """
 							echo -n $(cat /foo.txt) >> /test.txt
-						"""
+							"""
+					}
 				},
 			]
 		}

pkg/universe.dagger.io/docker/test/build-simple.cue

@@ -17,9 +17,10 @@ dagger.#Plan & {
 			steps: [
 				alpine.#Build,
 				docker.#Run & {
-					script: """
-							echo -n $TEST >> /test.txt
-						"""
+					command: {
+						name: "sh"
+						flags: "-c": "echo -n $TEST >> /test.txt"
+					}
 					env: TEST: #testValue
 				},
 			]

pkg/universe.dagger.io/docker/test/image-config-test.cue

@@ -27,7 +27,7 @@ dagger.#Plan & {
 		}
 		run: docker.#Run & {
 			image: myimage
-			cmd: name: "ls"
+			command: name: "ls"
 			export: files: {
 				"/dagger.txt": _ & {
 					contents: "not hello from dagger"
@@ -57,9 +57,12 @@ dagger.#Plan & {
 
 		verify_working_directory: docker.#Run & {
 			image: myimage
-			script: #"""
-				pwd > dir.txt
-				"""#
+			command: {
+				name: "sh"
+				flags: "-c": #"""
+					pwd > dir.txt
+					"""#
+			}
 			export: files: "/bin/dir.txt": _ & {
 				contents: "/bin\n"
 			}
@@ -67,9 +70,12 @@ dagger.#Plan & {
 		verify_working_directory_is_overridden: docker.#Run & {
 			image:   myimage
 			workdir: "/"
-			script: #"""
-				pwd > dir.txt
-				"""#
+			command: {
+				name: "sh"
+				flags: "-c": #"""
+					pwd > dir.txt
+					"""#
+			}
 			export: files: "/dir.txt": _ & {
 				contents: "/\n"
 			}

pkg/universe.dagger.io/docker/test/multi-nested-build-test.cue

@@ -5,6 +5,7 @@ import (
 	"universe.dagger.io/docker"
 )
 
+// FIXME: this test is currently broken (see docker.bats)
 dagger.#Plan & {
 	actions: build: docker.#Build & {
 		steps: [
@@ -16,17 +17,17 @@ dagger.#Plan & {
 								source: "alpine"
 							},
 							docker.#Run & {
-								cmd: name: "ls"
+								command: name: "ls"
 							},
 						]
 					},
 					docker.#Run & {
-						cmd: name: "ls"
+						command: name: "ls"
 					},
 				]
 			},
 			docker.#Run & {
-				cmd: name: "ls"
+				command: name: "ls"
 			},
 		]
 	}

pkg/universe.dagger.io/docker/test/nested-build-test.cue

@@ -14,12 +14,12 @@ dagger.#Plan & {
 						source: "alpine"
 					},
 					docker.#Run & {
-						cmd: name: "ls"
+						command: name: "ls"
 					},
 				]
 			},
 			docker.#Run & {
-				cmd: name: "ls"
+				command: name: "ls"
 			},
 		]
 	}

pkg/universe.dagger.io/docker/test/run-command-test.cue

@@ -13,7 +13,7 @@ dagger.#Plan & {
 
 		run: docker.#Run & {
 			"image": image.output
-			cmd: {
+			command: {
 				name: "/bin/sh"
 				args: ["-c", "echo -n hello world >> /output.txt"]
 			}

pkg/universe.dagger.io/docker/test/run-export-directory-test.cue

@@ -13,10 +13,13 @@ dagger.#Plan & {
 
 		run: docker.#Run & {
 			"image": image.output
-			script: #"""
-				mkdir -p test
-				echo -n hello world >> /test/output.txt
-				"""#
+			command: {
+				name: "sh"
+				flags: "-c": #"""
+					mkdir -p test
+					echo -n hello world >> /test/output.txt
+					"""#
+			}
 			export: {
 				directories: "/test":      _
 				files: "/test/output.txt": _ & {

pkg/universe.dagger.io/docker/test/run-export-file-test.cue

@@ -12,9 +12,12 @@ dagger.#Plan & {
 
 		run: docker.#Run & {
 			"image": image.output
-			script: #"""
-				echo -n hello world >> /output.txt
-				"""#
+			command: {
+				name: "sh"
+				flags: "-c": #"""
+					echo -n hello world >> /output.txt
+					"""#
+			}
 			export: files: "/output.txt": _ & {
 				contents: "hello world"
 			}

pkg/universe.dagger.io/docker/test/run-script-test.cue

@@ -13,9 +13,12 @@ dagger.#Plan & {
 
 		run: docker.#Run & {
 			"image": image.output
-			script: #"""
-				echo -n $TEST_MESSAGE >> /output.txt
-				"""#
+			command: {
+				name: "sh"
+				flags: "-c": #"""
+					echo -n $TEST_MESSAGE >> /output.txt
+					"""#
+			}
 			env: TEST_MESSAGE: "hello world"
 		}