Run exitscripts in original dir (#2352)

* Modify testcase

* Run exitscript in the folder it was specified

* Update documentation

* Add comment

* Borrow instead of clone

* Does this just... work on windows?

* fmt

* as_str

* Collapse if by order of clippy

* Support windows

* fmt

* refactor tests

* fmt

* This time it will work on windows FOR SURE

* Remove debug prints

* Comment

* Refactor tests

* fmt

* fix spelling

* update comment

crates/nu-cli/src/commands/autoenv.rs

@@ -55,7 +55,7 @@ impl WholeStreamCommand for Autoenv {
 The file can contain several optional sections:
     env: environment variables to set when visiting the directory. The variables are unset after leaving the directory and any overwritten values are restored.
     scriptvars: environment variables that should be set to the return value of a script. After they have been set, they behave in the same way as variables set in the env section.
-    scripts: scripts to run when entering the directory or leaving it. Note that exitscripts are not run in the directory they are declared in."#
+    scripts: scripts to run when entering the directory or leaving it."#
     }
 
     fn signature(&self) -> Signature {

crates/nu-cli/src/env/directory_specific_environment.rs

@@ -112,7 +112,7 @@ impl DirectorySpecificEnvironment {
 
                 if let Some(es) = nu_env_doc.entryscripts {
                     for s in es {
-                        run(s.as_str())?;
+                        run(s.as_str(), None)?;
                     }
                 }
 
@@ -147,7 +147,7 @@ impl DirectorySpecificEnvironment {
                 new_exitscripts.insert(dir, scripts);
             } else {
                 for s in scripts {
-                    run(s.as_str())?;
+                    run(s.as_str(), Some(&dir))?;
                 }
             }
         }
@@ -215,9 +215,23 @@ impl DirectorySpecificEnvironment {
     }
 }
 
-fn run(cmd: &str) -> Result<(), ShellError> {
+fn run(cmd: &str, dir: Option<&PathBuf>) -> Result<(), ShellError> {
     if cfg!(target_os = "windows") {
+        if let Some(dir) = dir {
+            let command = format!("cd {} & {}", dir.to_string_lossy(), cmd);
+            Command::new("cmd")
+                .args(&["/C", command.as_str()])
+                .output()?
+        } else {
             Command::new("cmd").args(&["/C", cmd]).output()?
+        }
+    } else if let Some(dir) = dir {
+        // FIXME: When nu scripting is added, cding like might not be a good idea. If nu decides to execute entryscripts when entering the dir this way, it will cause troubles.
+        // For now only standard shell scripts are used, so this is an issue for the future.
+        Command::new("sh")
+            .arg("-c")
+            .arg(format!("cd {:?}; {}", dir, cmd))
+            .output()?
     } else {
         Command::new("sh").arg("-c").arg(&cmd).output()?
     };

tests/shell/pipeline/commands/internal.rs

@@ -48,9 +48,8 @@ fn autoenv() {
         sandbox.mkdir("bizz/buzz");
         sandbox.mkdir("foob");
 
-        let scriptfile = if cfg!(target_os = "windows") {
+        // Windows uses a different command to create an empty file so we need to have different content on windows.
-            FileWithContent(
+        let full_nu_env = if cfg!(target_os = "windows") {
-                ".nu-env",
             r#"[env]
                 testkey = "testvalue"
 
@@ -59,11 +58,8 @@ fn autoenv() {
 
                 [scripts]
                 entryscripts = ["echo nul > hello.txt"]
-                    exitscripts = ["echo nul > bye.txt"]"#,
+                exitscripts = ["echo nul > bye.txt"]"#
-            )
         } else {
-            FileWithContent(
-                ".nu-env",
             r#"[env]
                 testkey = "testvalue"
 
@@ -72,12 +68,11 @@ fn autoenv() {
 
                 [scripts]
                 entryscripts = ["touch hello.txt"]
-                    exitscripts = ["touch bye.txt"]"#,
+                exitscripts = ["touch bye.txt"]"#
-            )
         };
 
         sandbox.with_files(vec![
-            scriptfile,
+            FileWithContent(".nu-env", full_nu_env),
             FileWithContent(
                 "foo/.nu-env",
                 r#"[env]
@@ -89,14 +84,28 @@ fn autoenv() {
                 r#"[env]
                     overwrite_me = "set_in_bar""#,
             ),
-            FileWithContent(
+            FileWithContent("bizz/.nu-env", full_nu_env),
-                "bizz/.nu-env",
-                r#"[scripts]
-                    entryscripts = ["touch hello.txt"]
-                    exitscripts = ["touch bye.txt"]"#,
-            ),
         ]);
 
+        //Make sure basic keys are set
+        let actual = nu!(
+            cwd: dirs.test(),
+            r#"autoenv trust
+               echo $nu.env.testkey"#
+        );
+        assert!(actual.out.ends_with("testvalue"));
+
+        // Make sure exitscripts are run in the directory they were specified.
+        let actual = nu!(
+            cwd: dirs.test(),
+            r#"autoenv trust
+               cd ..
+               cd autoenv_test
+               ls
+               ls | where name == "bye.txt" | get name"#
+        );
+        assert!(actual.out.contains("bye.txt"));
+
         // Make sure entry scripts are run
         let actual = nu!(
             cwd: dirs.test(),
@@ -138,14 +147,6 @@ fn autoenv() {
         );
         assert!(!actual.out.ends_with("hello.txt"));
 
-        //Make sure basic keys are set
-        let actual = nu!(
-            cwd: dirs.test(),
-            r#"autoenv trust
-               echo $nu.env.testkey"#
-        );
-        assert!(actual.out.ends_with("testvalue"));
-
         //Backing out of the directory should unset the keys
         let actual = nu!(
             cwd: dirs.test(),
@@ -189,14 +190,6 @@ fn autoenv() {
         );
         assert!(actual.out.contains("hello.txt"));
 
-        // Make sure exit scripts are run
-        let actual = nu!(
-            cwd: dirs.test(),
-            r#"cd ..
-               ls | where name == "bye.txt" | get name"#
-        );
-        assert!(actual.out.contains("bye.txt"));
-
         //Variables set in parent directories should be set even if you directly cd to a subdir
         let actual = nu!(
             cwd: dirs.test(),