remove fetch_files command as it's not needed

docs/debugging.md

@@ -10,15 +10,10 @@ Next, clone https://github.com/dependabot/dependabot-core. This project contains
 
 Try opening a terminal and run `script/dependabot update go_modules dependabot/cli --debug` in the `dependabot-core` project directory. This will drop you in an interactive session with the update ready to proceed.
 
-To perform the update, you need to run two commands:
+To perform the update, you need to run:
 
-- `bin/run fetch_files`
 - `bin/run update_files`
 
-If the problem you are debugging is during the fetch step, the fetch_files command will be all you need to run.
-
-If the problem is after the fetch step, you can repeatedly run update_files while you're debugging. 
-
 In the example `script/dependabot` command above, try running an update in the container. 
 
 Next, let's try adding a `debugger` statement. Open the `dependabot-core` project in your favorite editor. For example, we can open the file `go_modules/lib/dependabot/go_modules/update_checker.rb`. Then in `latest_resolvable_version` we can add a `debugger` statement like this:
@@ -32,7 +27,7 @@ Next, let's try adding a `debugger` statement. Open the `dependabot-core` projec
 
 > **Note** You don't have to restart your CLI session, the changes are automatically synced to the container!
 
-In the interactive debugging session, run `bin/run fetch_files` and `bin/run update_files`. During the update_files command, the Ruby debugger will open. It should look something like this:
+In the interactive debugging session, run `bin/run update_files`. During the update_files command, the Ruby debugger will open. It should look something like this:
 
 ```ruby
 [11, 20] in ~/go_modules/lib/dependabot/go_modules/update_checker.rb
@@ -60,7 +55,7 @@ At this prompt, you can run [debugger commands](https://github.com/ruby/debug) t
 
 If your Dependabot job is hanging and would like to figure out why, the CLI is the perfect tool for the job. 
 
-Start by running the update that recreates the hang with `dependabot update <ecosystem> <org/repo>`. Once the hang is reproducible, run with the `--debug` flag and the run the `fetch_files` and `update_files` commands and wait until the job hangs.
+Start by running the update that recreates the hang with `dependabot update <ecosystem> <org/repo>`. Once the hang is reproducible, run with the `--debug` flag and the run the `update_files` command and wait until the job hangs.
 
 Once it does hang, hit CTL-C, and you'll get a stack trace leading you to the problematic code.
 

internal/infra/run.go

@@ -31,8 +31,8 @@ import (
 )
 
 var runCmds = map[model.RunCommand]string{
-	model.UpdateFilesCommand: "bin/run fetch_files && bin/run update_files",
-	model.UpdateGraphCommand: "bin/run fetch_files && bin/run update_graph",
+	model.UpdateFilesCommand: "bin/run update_files",
+	model.UpdateGraphCommand: "bin/run update_graph",
 }
 
 type RunParams struct {

internal/infra/updater.go

@@ -34,7 +34,6 @@ const (
 
 const (
 	guestInputDir = "/home/dependabot/dependabot-updater/job.json"
-	guestOutput   = "/home/dependabot/dependabot-updater/output.json"
 	guestRepoDir  = "/home/dependabot/dependabot-updater/repo"
 
 	caseSensitiveContainerRoot    = "/dpdbot"
@@ -315,10 +314,8 @@ func userEnv(proxyURL string, apiUrl string, job *model.Job, additionalEnvVars [
 		fmt.Sprintf("DEPENDABOT_JOB_ID=%v", firstNonEmpty(os.Getenv("DEPENDABOT_JOB_ID"), jobID)),
 		fmt.Sprintf("DEPENDABOT_JOB_TOKEN=%v", ""),
 		fmt.Sprintf("DEPENDABOT_JOB_PATH=%v", guestInputDir),
-		fmt.Sprintf("DEPENDABOT_OUTPUT_PATH=%v", guestOutput),
 		fmt.Sprintf("DEPENDABOT_API_URL=%s", apiUrl),
 		fmt.Sprintf("SSL_CERT_FILE=%v/ca-certificates.crt", certsPath),
-		"UPDATER_ONE_CONTAINER=true",
 		"UPDATER_DETERMINISTIC=true",
 	}
 

testdata/scripts/basic.txt

@@ -5,7 +5,6 @@ exec docker build -qt dummy-updater .
 dependabot update go_modules dependabot/cli --updater-image dummy-updater
 
 # assert the dummy is working
-stderr 'bin/run arguments: fetch_files'
 stderr 'bin/run arguments: update_files'
 
 exec docker rmi -f dummy-updater

testdata/scripts/graph.txt

@@ -5,14 +5,12 @@ exec docker build -qt graph-updater .
 dependabot graph go_modules dependabot/cli -o out.yml --updater-image graph-updater
 
 # assert the dummy is working
-stderr 'bin/run arguments: fetch_files'
 stderr 'bin/run arguments: update_graph'
 stderr '"enable_dependency_submission_poc":true'
 
 # Verify the smoke test can run the graph command
 dependabot test -f out.yml --updater-image graph-updater
 
-stderr 'bin/run arguments: fetch_files'
 stderr 'bin/run arguments: update_graph'
 
 exec docker rmi -f graph-updater

testdata/scripts/smb-mount.txt

@@ -25,11 +25,8 @@ echo "Updated those certificates for ya"
 -- run --
 #!/usr/bin/env bash
 
-if [ "$1" = "fetch_files" ]; then
-  # git clone would have created this directory
-  mkdir -p "$DEPENDABOT_REPO_CONTENTS_PATH"
-  exit 0
-fi
+# git clone would have created this directory
+mkdir -p "$DEPENDABOT_REPO_CONTENTS_PATH"
 
 echo "test file" > "$DEPENDABOT_REPO_CONTENTS_PATH/test.txt"
 if [ -e "$DEPENDABOT_CASE_INSENSITIVE_REPO_CONTENTS_PATH/TEST.TXT" ]; then