From 6895dafe975d3332ed77596f80ca2c3df57587ec Mon Sep 17 00:00:00 2001
From: Christophe Dervieux <christophe.dervieux@gmail.com>
Date: Tue, 27 Aug 2024 15:48:43 +0200
Subject: [PATCH] create project can open in positron

---
 news/changelog-1.6.md        |  4 +++
 src/command/create/cmd.ts    |  2 +-
 src/command/create/editor.ts | 67 +++++++++++++++++++++++++++++++++++-
 src/core/platform.ts         |  9 +++++
 4 files changed, 80 insertions(+), 2 deletions(-)

diff --git a/news/changelog-1.6.md b/news/changelog-1.6.md
index db56f3d8ea..4838304ab6 100644
--- a/news/changelog-1.6.md
+++ b/news/changelog-1.6.md
@@ -19,6 +19,10 @@ All changes included in 1.6:
 - ([#10217](https://github.com/quarto-dev/quarto-cli/issues/10217)): Explicitly compute units for image dimensions in `typst` format when they're not given.
 - ([#10212](https://github.com/quarto-dev/quarto-cli/issues/10212)): Moves Pandoc variables to the function declaration for the default template.
 
+## Projects
+
+- ([#10268](https://github.com/quarto-dev/quarto-cli/issues/10268)]): `quarto create` supports opening project in Positron, in addition to VS Code and RStudio IDE.
+
 ## Engines
 
 ### `julia`
diff --git a/src/command/create/cmd.ts b/src/command/create/cmd.ts
index ea5faf7a77..ccaa93af64 100644
--- a/src/command/create/cmd.ts
+++ b/src/command/create/cmd.ts
@@ -30,7 +30,7 @@ export const createCommand = new Command()
   .option(
     "--open [editor:string]",
     `Open new artifact in this editor (${
-      kEditorInfos.map((info) => info.id).join(",")
+      kEditorInfos.map((info) => info.id).join(", ")
     })`,
   )
   .option("--no-open", "Do not open in an editor")
diff --git a/src/command/create/editor.ts b/src/command/create/editor.ts
index 228c74fa56..0b848bd29a 100644
--- a/src/command/create/editor.ts
+++ b/src/command/create/editor.ts
@@ -7,7 +7,11 @@
 import { CreateResult } from "./cmd-types.ts";
 
 import { which } from "../../core/path.ts";
-import { isRStudioTerminal, isVSCodeTerminal } from "../../core/platform.ts";
+import {
+  isPositronTerminal,
+  isRStudioTerminal,
+  isVSCodeTerminal,
+} from "../../core/platform.ts";
 
 import { basename, dirname, join } from "../../deno_ral/path.ts";
 import { existsSync } from "fs/mod.ts";
@@ -29,6 +33,7 @@ export interface Editor {
 }
 
 export const kEditorInfos: EditorInfo[] = [
+  positronEditorInfo(),
   vscodeEditorInfo(),
   rstudioEditorInfo(),
 ];
@@ -141,6 +146,66 @@ function vscodeEditorInfo(): EditorInfo {
   return editorInfo;
 }
 
+function positronEditorInfo(): EditorInfo {
+  const editorInfo: EditorInfo = {
+    id: "positron",
+    name: "positron",
+    open: (path: string, createResult: CreateResult) => {
+      const artifactPath = createResult.path;
+      const cwd = Deno.statSync(artifactPath).isDirectory
+        ? artifactPath
+        : dirname(artifactPath);
+
+      return async () => {
+        const p = Deno.run({
+          cmd: [path, artifactPath],
+          cwd,
+        });
+        await p.status();
+      };
+    },
+    inEditor: isPositronTerminal(),
+    actions: [],
+  };
+
+  if (Deno.build.os === "windows") {
+    editorInfo.actions.push({
+      action: "which",
+      arg: "Positron.exe",
+    });
+    const pathActions = windowsAppPaths("Positron", "Positron.exe").map(
+      (path) => {
+        return {
+          action: "path",
+          arg: path,
+        } as ScanAction;
+      },
+    );
+    editorInfo.actions.push(...pathActions);
+  } else if (Deno.build.os === "darwin") {
+    editorInfo.actions.push({
+      action: "which",
+      arg: "positron",
+    });
+
+    const pathActions = macosAppPaths(
+      "Positron.app/Contents/Resources/app/bin/positron",
+    ).map((path) => {
+      return {
+        action: "path",
+        arg: path,
+      } as ScanAction;
+    });
+    editorInfo.actions.push(...pathActions);
+  } else {
+    editorInfo.actions.push({
+      action: "which",
+      arg: "positron",
+    });
+  }
+  return editorInfo;
+}
+
 function rstudioEditorInfo(): EditorInfo {
   const editorInfo: EditorInfo = {
     id: "rstudio",
diff --git a/src/core/platform.ts b/src/core/platform.ts
index 5178f14633..74c890d4e4 100644
--- a/src/core/platform.ts
+++ b/src/core/platform.ts
@@ -24,6 +24,10 @@ export function isRStudio() {
   return !!Deno.env.get("RSTUDIO");
 }
 
+export function isPositron() {
+  return !!Deno.env.get("POSITRON");
+}
+
 export function isVSCodeOutputChannel() {
   return !!Deno.env.get("VSCODE_PID");
 }
@@ -46,6 +50,11 @@ export function isRStudioTerminal() {
   return !!Deno.env.get("RSTUDIO_TERM");
 }
 
+export function isPositronTerminal() {
+  // it seems there is no POSITRON_TERM variable set
+  return isPositron();
+}
+
 export function isServerSession() {
   return isRStudioServer() || isRStudioWorkbench() || isJupyterServer() ||
     isJupyterHubServer() || isVSCodeServer();