fix: handle case where netrc file does not exist

commands/get_command.go

@@ -86,7 +86,20 @@ func (c *GetCommand) Run(args []string) int {
 		return 1
 	}
 
-	n, err := netrc.Parse(filepath.Join(usr.HomeDir, ".netrc"))
+	netrcFile := filepath.Join(usr.HomeDir, ".netrc")
+	if _, err := os.Stat(netrcFile); os.IsNotExist(err) {
+		file, err := os.OpenFile(netrcFile, os.O_RDONLY|os.O_CREATE, 0600)
+		if err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+		if err := file.Close(); err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+	}
+
+	n, err := netrc.Parse(netrcFile)
 	if err != nil {
 		c.Ui.Error(err.Error())
 		return 1

commands/set_command.go

@@ -104,7 +104,20 @@ func (c *SetCommand) Run(args []string) int {
 		return 1
 	}
 
-	n, err := netrc.Parse(filepath.Join(usr.HomeDir, ".netrc"))
+	netrcFile := filepath.Join(usr.HomeDir, ".netrc")
+	if _, err := os.Stat(netrcFile); os.IsNotExist(err) {
+		file, err := os.OpenFile(netrcFile, os.O_RDONLY|os.O_CREATE, 0600)
+		if err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+		if err := file.Close(); err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+	}
+
+	n, err := netrc.Parse(netrcFile)
 	if err != nil {
 		c.Ui.Error(err.Error())
 		return 1

commands/unset_command.go

@@ -86,7 +86,20 @@ func (c *UnsetCommand) Run(args []string) int {
 		return 1
 	}
 
-	n, err := netrc.Parse(filepath.Join(usr.HomeDir, ".netrc"))
+	netrcFile := filepath.Join(usr.HomeDir, ".netrc")
+	if _, err := os.Stat(netrcFile); os.IsNotExist(err) {
+		file, err := os.OpenFile(netrcFile, os.O_RDONLY|os.O_CREATE, 0600)
+		if err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+		if err := file.Close(); err != nil {
+			c.Ui.Error(err.Error())
+			return 1
+		}
+	}
+
+	n, err := netrc.Parse(netrcFile)
 	if err != nil {
 		c.Ui.Error(err.Error())
 		return 1

test.bats

@@ -24,6 +24,24 @@ teardown() {
   assert_success
 }
 
+@test "(get) no netrc" {
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_failure
+
+  run $NETRC_BIN get invalid
+  echo "output: $output"
+  echo "status: $status"
+  assert_failure
+  assert_output_contains "Invalid machine 'invalid' specified"
+
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+}
+
 @test "(get) empty netrc" {
   run $NETRC_BIN get
   echo "output: $output"
@@ -68,6 +86,30 @@ teardown() {
   assert_output_contains "Invalid machine 'invalid' specified"
 }
 
+@test "(set) no netrc" {
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_failure
+
+  run $NETRC_BIN set github.com username password
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output_not_exists
+
+  run cat "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "$(cat fixtures/empty/github.netrc)"
+
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+}
+
 @test "(set) empty netrc" {
   run cp "fixtures/empty/.netrc" "$HOME/.netrc"
   echo "output: $output"
@@ -154,6 +196,29 @@ teardown() {
   assert_output "$(cat fixtures/valid/github-account.netrc)"
 }
 
+@test "(unset) no netrc" {
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_failure
+
+  run $NETRC_BIN unset github.com
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run cat "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "$(cat fixtures/empty/.netrc)"
+
+  run test -f "$HOME/.netrc"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+}
+
 @test "(unset) empty netrc" {
   run cp "fixtures/empty/.netrc" "$HOME/.netrc"
   echo "output: $output"