Proper support for shell input (#189)

* add options for shell

Signed-off-by: kpenfound <kyle@dagger.io>

assemble dagger command in new step with output

Signed-off-by: kpenfound <kyle@dagger.io>

fixing some inline bash

Signed-off-by: kpenfound <kyle@dagger.io>

wrap conditional inputs in quotes

Signed-off-by: kpenfound <kyle@dagger.io>

use cat for heredoc script file

Signed-off-by: kpenfound <kyle@dagger.io>

missing space in heredoc

Signed-off-by: kpenfound <kyle@dagger.io>

add tab ignore and dagger shebang

Signed-off-by: kpenfound <kyle@dagger.io>

use toJson and jq to safely write the shell input to a file

Signed-off-by: kpenfound <kyle@dagger.io>

put DAGGER_COMMAND in a variable

Signed-off-by: kpenfound <kyle@dagger.io>

missing semicolon for the dagger command

Signed-off-by: kpenfound <kyle@dagger.io>

safely evaluate if shell is set

Signed-off-by: kpenfound <kyle@dagger.io>

extra > in shell file write

Signed-off-by: kpenfound <kyle@dagger.io>

add some logging

Signed-off-by: kpenfound <kyle@dagger.io>

strip extra newline from jq when shell is not set

Signed-off-by: kpenfound <kyle@dagger.io>

debugging

Signed-off-by: kpenfound <kyle@dagger.io>

toJSON and jq will send null instead of empty string with no input

Signed-off-by: kpenfound <kyle@dagger.io>

safely handle all inputs

Signed-off-by: kpenfound <kyle@dagger.io>

did i fix the wrong thing?

Signed-off-by: kpenfound <kyle@dagger.io>

change up the approach a bit for an easier diff

Signed-off-by: kpenfound <kyle@dagger.io>

fix shell test

Signed-off-by: kpenfound <kyle@dagger.io>

single quotes around shell input

Signed-off-by: kpenfound <kyle@dagger.io>

try with piped input

Signed-off-by: kpenfound <kyle@dagger.io>

try single quotes again

Signed-off-by: kpenfound <kyle@dagger.io>

debug

Signed-off-by: kpenfound <kyle@dagger.io>

debug

Signed-off-by: kpenfound <kyle@dagger.io>

fix shell test

Signed-off-by: kpenfound <kyle@dagger.io>

does shell emit a newline?

Signed-off-by: kpenfound <kyle@dagger.io>

remove the trailing newline if its in stdout

Signed-off-by: kpenfound <kyle@dagger.io>

break the trailing output test

Signed-off-by: kpenfound <kyle@dagger.io>

fix shell test

Signed-off-by: kpenfound <kyle@dagger.io>

missed !

Signed-off-by: kpenfound <kyle@dagger.io>

add comment about weird test

Signed-off-by: kpenfound <kyle@dagger.io>

* use echo -n in shell test

Signed-off-by: kpenfound <kyle@dagger.io>

---------

Signed-off-by: kpenfound <kyle@dagger.io>

.github/workflows/test.yml

@@ -120,7 +120,6 @@ jobs:
             exit 1
           fi
 
-
   version:
     runs-on: "ubuntu-latest"
     steps:
@@ -219,6 +218,27 @@ jobs:
             exit 1
           fi
 
+  shell:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v4
+      - name: "Test shell"
+        id: test-shell
+        uses: ./
+        with:
+          shell: 'container | from alpine | with-exec echo,-n,"hello world!" | stdout'
+      - name: "Test shell (check)"
+        run: |
+          target='${{ steps.test-shell.outputs.output }}'
+          result='hello world!'
+          if [[ "$target" == "$result" ]]; then
+            echo "matches"
+            exit 0
+          else
+            echo "does not match"
+            exit 1
+          fi
+
   nocall:
     runs-on: "ubuntu-latest"
     steps:
@@ -228,4 +248,3 @@ jobs:
       - name: "Test Install"
         run: |
           dagger core version
-