From 512ffd902347652b4022ac905ca857b54a58e506 Mon Sep 17 00:00:00 2001
From: rlespinasse <romain.lespinasse@gmail.com>
Date: Thu, 9 Dec 2021 22:47:58 +0100
Subject: [PATCH] feat: enable short sha with specific length

---
 .github/workflows/shortify-git-revision.yaml | 44 ++++++++++++++++++++
 README.md                                    | 23 +++++++++-
 action.yml                                   |  5 +++
 shortify.sh                                  | 14 ++++++-
 4 files changed, 84 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/shortify-git-revision.yaml b/.github/workflows/shortify-git-revision.yaml
index 0ea2a7c..e1fe414 100644
--- a/.github/workflows/shortify-git-revision.yaml
+++ b/.github/workflows/shortify-git-revision.yaml
@@ -93,6 +93,50 @@ jobs:
           [[ -z "${{ env.WRONG_AND_MISSING_REVISION_SHORT }}" ]]
         shell: bash
 
+      # Test 7
+      - name: Shortify a git revision with specific length
+        uses: ./
+        with:
+          name: SIZED_REVISION
+          revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
+          length: 10
+      - name: Validate // Shortify a git revision with specific length
+        run: |
+          [[ "${{ env.SIZED_REVISION }}" == "88428f56bd9d2751c47106bedfd148162dfa50b8" ]]
+          [[ "${{ env.SIZED_REVISION_SHORT }}" == "88428f56bd" ]]
+        shell: bash
+
+      # Test 8
+      - id: test-shortify-git-revision-with-wrong-length
+        name: Shortify a git revision with wrong length
+        uses: ./
+        with:
+          name: WRONGFULLY_SIZED_REVISION
+          revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
+          length: "not_a_number"
+        continue-on-error: true
+      - name: Validate // Shortify a git revision with wrong length
+        run: |
+          [[ -z "${{ env.WRONGFULLY_SIZED_REVISION }}" ]]
+          [[ -z "${{ env.WRONGFULLY_SIZED_REVISION_SHORT }}" ]]
+          [[ "${{ steps.test-shortify-git-revision-with-wrong-length.outcome }}" == "failure" ]]
+          [[ "${{ steps.test-shortify-git-revision-with-wrong-length.conclusion }}" == "success" ]]
+        shell: bash
+
+      # Test 9
+      - name: Shortify a git revision with wrong length without failing
+        uses: ./
+        with:
+          name: WRONGFULLY_SIZED_REVISION
+          revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
+          length: "not_a_number"
+          continue-on-error: true
+      - name: Validate // Shortify a git revision with wrong length without failing
+        run: |
+          [[ "${{ env.WRONGFULLY_SIZED_REVISION }}" == "88428f56bd9d2751c47106bedfd148162dfa50b8" ]]
+          [[ "${{ env.WRONGFULLY_SIZED_REVISION_SHORT }}" == "88428f5" ]]
+        shell: bash
+
   shortify-git-revision-release:
     runs-on: ubuntu-latest
     concurrency:
diff --git a/README.md b/README.md
index 192deab..fe12f60 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ If a revision is a bad revision, this action will produce an error message and f
 - Shortify any revision
 
   ```yaml
-  - uses: rlespinasse/slugify-value@v1.x
+  - uses: rlespinasse/shortify-git-revision@v1.x
     with:
       name: SOME_REVISION
       revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
@@ -49,6 +49,21 @@ If a revision is a bad revision, this action will produce an error message and f
   - `SOME_REVISION`
   - `SOME_REVISION_SHORT`
 
+- Shortify a revision with a specific length
+
+  ```yaml
+  - uses: rlespinasse/shortify-git-revision@v1.x
+    with:
+      name: SIZED_REVISION
+      revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
+      length: 10
+  ```
+
+  Will make available
+
+  - `SIZED_REVISION`
+  - `SIZED_REVISION_SHORT` (with value `88428f56bd`)
+
 ## Inputs
 
 ### `name`
@@ -73,3 +88,9 @@ The default value is `false`.
 The value will be prepend to each generated variable.
 
 This input is _Optional_.
+
+### `length`
+
+the `short` sha produce will have the length defined by the input.
+
+This input is _Optional_.
diff --git a/action.yml b/action.yml
index babc789..29d0178 100644
--- a/action.yml
+++ b/action.yml
@@ -16,6 +16,10 @@ inputs:
     description: "Value to prepend to each generated variable"
     default: ""
     required: false
+  length:
+    description: "Value to configure the length of the shorted sha"
+    default: ""
+    required: false
 branding:
   icon: "crop"
   color: "gray-dark"
@@ -29,3 +33,4 @@ runs:
         INPUT_REVISION: ${{ inputs.revision }}
         INPUT_CONTINUE_ON_ERROR: ${{ inputs.continue-on-error }}
         INPUT_PREFIX: ${{ inputs.prefix }}
+        INPUT_LENGTH: ${{ inputs.length }}
diff --git a/shortify.sh b/shortify.sh
index 0633fc7..f3a5ad0 100755
--- a/shortify.sh
+++ b/shortify.sh
@@ -11,6 +11,18 @@ else
 fi
 REVISION=${INPUT_REVISION:-${!NAME}}
 
+SHORT_LENGTH=""
+if [ "$INPUT_LENGTH" != "" ]; then
+  if [ "$INPUT_LENGTH" -eq "$INPUT_LENGTH" ] 2>/dev/null; then
+    SHORT_LENGTH="=${INPUT_LENGTH}"
+  elif [ "${INPUT_CONTINUE_ON_ERROR}" == "false" ]; then
+    echo "::error ::Invalid length: $INPUT_LENGTH, should be a number"
+    exit 1
+  else
+    echo "::warning ::Invalid length: $INPUT_LENGTH, the default length will be used."
+  fi
+fi
+
 if [ -z "$REVISION" ]; then
   exit 0
 fi
@@ -18,7 +30,7 @@ fi
 if [ "$(git cat-file -e "$REVISION" 2>&1)" == "" ]; then
   {
     echo "${PREFIX}${NAME}=${REVISION}"
-    echo "${PREFIX}${NAME}_SHORT=$(git rev-parse --short "$REVISION")"
+    echo "${PREFIX}${NAME}_SHORT=$(git rev-parse --short"${SHORT_LENGTH}" "$REVISION")"
   } >>"$GITHUB_ENV"
 elif [ "${INPUT_CONTINUE_ON_ERROR}" == "false" ]; then
   echo "::error ::Invalid revision: $REVISION from $NAME"