Add diffstat case for deleted file

Fixes bug when using removeFile in postprocessing script

Author: Irene Alvarado

dist/index.js

@@ -357,20 +357,31 @@ async function getHeadSize(path) {
     }
 }
 async function diffSize(file) {
-    const stat = fs_1.statSync(file.path);
-    core.debug(`Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`);
     switch (file.flag) {
-        case 'M':
+        case 'M': {
+            const stat = fs_1.statSync(file.path);
+            core.debug(`Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`);
             // get old size and compare
             const oldSize = await getHeadSize(file.path);
             const delta = oldSize === undefined ? stat.size : stat.size - oldSize;
             core.debug(` ==> ${file.path} modified: old ${oldSize}, new ${stat.size}, delta ${delta}b `);
             return delta;
-        case 'A':
+        }
+        case 'A': {
+            const stat = fs_1.statSync(file.path);
+            core.debug(`Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`);
             core.debug(` ==> ${file.path} added: delta ${stat.size}b`);
             return stat.size;
-        default:
+        }
+        case 'D': {
+            const oldSize = await getHeadSize(file.path);
+            const delta = oldSize === undefined ? 0 : oldSize;
+            core.debug(` ==> ${file.path} deleted: delta ${delta}b`);
+            return delta;
+        }
+        default: {
             throw new Error(`Encountered an unexpected file status in git: ${file.flag} ${file.path}`);
+        }
     }
 }
 async function diff(filename) {

dist/index.js.map

@@ -1,7 +1,8 @@
 import { exec, ExecOptions } from '@actions/exec'
-import { statSync } from 'fs'
+import { statSync, existsSync } from 'fs'
 import path from 'path'
 import * as core from '@actions/core'
+import { CONNREFUSED } from 'node:dns'
 
 export type GitStatus = {
   flag: string
@@ -46,29 +47,42 @@ async function getHeadSize(path: string): Promise<number | undefined> {
   }
 }
 
-async function diffSize(file: GitStatus): Promise<number> {
-  const stat = statSync(file.path)
-  core.debug(
-    `Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`
-  )
-  switch (file.flag) {
-    case 'M':
+async function diffSize(file: GitStatus): Promise<number> {  
+  switch (file.flag) {    
+    case 'M': {
+      const stat = statSync(file.path)
+      core.debug(
+        `Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`
+      )
+
       // get old size and compare
       const oldSize = await getHeadSize(file.path)
       const delta = oldSize === undefined ? stat.size : stat.size - oldSize
       core.debug(
         ` ==> ${file.path} modified: old ${oldSize}, new ${stat.size}, delta ${delta}b `
       )
       return delta
+    }
+    case 'A': {
+      const stat = statSync(file.path)
+      core.debug(
+        `Calculating diff for ${JSON.stringify(file)}, with size ${stat.size}b`
+      )
 
-    case 'A':
       core.debug(` ==> ${file.path} added: delta ${stat.size}b`)
       return stat.size
-
-    default:
+    }
+    case 'D': {
+      const oldSize = await getHeadSize(file.path)
+      const delta = oldSize === undefined ? 0 : oldSize
+      core.debug(` ==> ${file.path} deleted: delta ${delta}b`)
+      return delta
+    }
+    default: {
       throw new Error(
         `Encountered an unexpected file status in git: ${file.flag} ${file.path}`
       )
+    }
   }
 }
 
@@ -84,3 +98,4 @@ export async function diff(filename: string): Promise<number> {
   }
   return await diffSize(status)
 }
+