println error

2 files changed, 54 insertions, 36 deletions

diff --git a/src/build.gleam b/src/build.gleam
index a999c57..038afe9 100644
--- a/src/build.gleam
+++ b/src/build.gleam
@@ -64,9 +64,11 @@ fn pages_assets() -> List(Asset) {
 }
 
 fn fold_result(r0: Result(Nil, String), r: Result(Nil, String)) -> Result(Nil, String) {
-  case r {
-    Ok(Nil) -> r0
-    Error(_) -> r
+  case r0, r {
+    Ok(Nil), Ok(Nil)          -> r0
+    Error(_), Ok(Nil)         -> r0
+    Ok(Nil), Error(_)         -> r
+    Error(e1), Error(e2)      -> Error(e1 <> e2)
   }
 }
 
@@ -87,6 +89,6 @@ pub fn main() {
 
   [r0, r1, r2]
   |> list.fold(Ok(Nil), fold_result)
-  |> result.map_error(fn (e) { io.println(e) })
+  |> result.map_error(fn (e) { io.println_error(e) })
   |> promise.resolve
 }
diff --git a/src/build_ffi.mjs b/src/build_ffi.mjs
index 52ad01e..4cac382 100644
--- a/src/build_ffi.mjs
+++ b/src/build_ffi.mjs
@@ -4,52 +4,68 @@ import { lessLoader } from 'esbuild-plugin-less';
 
 export function bundle_build(entry, out) {
   return new Promise(resolve => {
-    let b = build({
-      entryPoints: [entry],
-      bundle: true,
-      minify: true,
-      format: 'esm',
-      outfile: out,
-    })
-    resolve(new Ok(undefined))
+    try {
+      let b = build({
+        entryPoints: [entry],
+        bundle: true,
+        minify: true,
+        format: 'esm',
+        outfile: out,
+      })
+      resolve(new Ok(undefined))
+    } catch (e) {
+      resolve(new Error("bundle build error"))
+    }
   })
 }
 
 export function js_build(js, out) {
   return new Promise(resolve => {
-    let b = build({
-      stdin: {
-        contents: js,
-        loader: 'js',
-      },
-      bundle: false,
-      minify: false,
-      format: 'esm',
-      outfile: out,
-    })
-    resolve(new Ok(undefined))
+    try {
+      let b = build({
+        stdin: {
+          contents: js,
+          loader: 'js',
+        },
+        bundle: false,
+        minify: false,
+        format: 'esm',
+        outfile: out,
+      })
+      resolve(new Ok(undefined))
+    } catch (e) {
+      resolve(new Error("js build error"))
+    }
   })
 }
 
 export function copy_build(src, out) {
   return new Promise(resolve => {
-    let b = build({
-      entryPoints: [src],
-      loader: {'.wxml': 'copy', '.json': 'copy'},
-      outfile: out,
-    })
-    resolve(new Ok(undefined))
+    try {
+      let b = build({
+        entryPoints: [src],
+        loader: {'.wxml': 'copy', '.json': 'copy'},
+        outfile: out,
+      })
+      resolve(new Ok(undefined))
+    } catch (e) {
+      resolve(new Error("copy build error"))
+    }
   })
 }
 
 export function less_build(css, out) {
   return new Promise(resolve => {
-    let b = build({
-      entryPoints: [css],
-      plugins: [lessLoader()],
-      loader: {'.less': 'css'},
-      outfile: out,
-    })
-    resolve(new Ok(undefined))
+    try {
+      let b = build({
+        entryPoints: [css],
+        plugins: [lessLoader()],
+        loader: {'.less': 'css'},
+        outfile: out,
+      })
+      resolve(new Ok(undefined))
+    } catch (e) {
+      resolve(new Error("less build error"))
+    }
   })
 }