New config flag: snapshot.prereleaseTemplate, and make snapshot feature stable

.changeset/olive-ducks-camp.md

@@ -0,0 +1,28 @@
+---
+"@changesets/cli": patch
+"@changesets/config": patch
+---
+
+A possibility to use the calculated version for snapshot releases is now stable 🥳 All snapshot-related config parameters are now grouped under a single config property called `snapshot`.
+
+To migrate, make sure to update your `config.json`.
+
+Old usage (still works, but comes with a deprecated warning):
+
+```json
+{
+  "___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH": {
+    "useCalculatedVersionForSnapshots": true
+  }
+}
+```
+
+New usage:
+
+```json
+{
+  "snapshot": {
+    "useCalculatedVersion": true
+  }
+}
+```

.changeset/quick-squids-dance.md

@@ -0,0 +1,5 @@
+---
+"@changesets/cli": minor
+---
+
+Added a new config flag for `changesets version --snapshot` mode: `--snapshot-prerelease-template`

.changeset/short-cats-invent.md

@@ -0,0 +1,5 @@
+---
+"@changesets/git": minor
+---
+
+Added a new helper function: `getCurrentCommitId`

.changeset/strong-geckos-divide.md

@@ -0,0 +1,8 @@
+---
+"@changesets/assemble-release-plan": minor
+"@changesets/cli": minor
+"@changesets/config": minor
+"@changesets/types": minor
+---
+
+Added a new config option: `snapshot.prereleaseTemplate` for customizing the way snapshot release numbers are being composed.

.vscode/settings.json

@@ -1,3 +1,9 @@
 {
-    "typescript.tsdk": "node_modules/typescript/lib"
-}
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "grammarly.selectors": [
+    {
+      "language": "markdown",
+      "scheme": "file"
+    }
+  ]
+}

README.md

@@ -55,6 +55,7 @@ To make releasing easier, you can use [this changesets github action](https://gi
 - [Prereleases](./docs/prereleases.md)
 - [Problems publishing in monorepos](./docs/problems-publishing-in-monorepos.md)
 - [Snapshot releases](./docs/snapshot-releases.md)
+- [Experimental Options](./docs/experimental-options.md)
 
 ## Cool Projects already using Changesets for versioning and changelogs
 

docs/config-file-options.md

@@ -14,7 +14,7 @@ Changesets has a minimal amount of configuration options. Mostly these are for w
 }
 ```
 
-> NOTE: the `linked`, `updateInternalDependencies`, and `ignore` options are only for behaviour in monorepos.
+> NOTE: the `linked`, `fixed`, `updateInternalDependencies`, `bumpVersionsWithWorkspaceProtocolOnly`, and `ignore` options are only for behaviour in monorepos.
 
 ## `commit` (`boolean`, or module path as a `string`, or a tuple like `[modulePath: string, options: any]`)
 
@@ -156,3 +156,40 @@ You would specify our github changelog generator with:
 ```
 
 For more details on these functions and information on how to write your own see [changelog-functions](./modifying-changelog-format.md)
+
+## `bumpVersionsWithWorkspaceProtocolOnly` (boolean)
+
+Determines whether Changesets should only bump dependency ranges that use workspace protocol of packages that are part of the workspace.
+
+## `snapshot` (object or undefined)
+
+Default value: `undefined`
+
+### `useCalculatedVersion` (optional boolean)
+
+Default value: `false`
+
+When `changesets version --snapshot` is used, the default behavior is to use `0.0.0` as the base version for the snapshot release.
+
+Setting `useCalculatedVersion: true` will change the default behavior and will use the calculated version, based on the changeset files.
+
+### `prereleaseTemplate` (optional string)
+
+Default value: `undefined` (see note below)
+
+Configures the suffix for the snapshot releases, using a template with placeholders.
+
+**Available placeholders:**
+
+You can use the following placeholders for customizing the snapshot release version:
+
+- `{tag}` - the name of the snapshot tag, as specified in `--snapshot something`
+- `{commit}` - the Git commit ID
+- `{timestamp}` - Unix timestamp of the time of the release
+- `{datetime}` - date and time of the release (14 characters, for example, `20211213000730`)
+
+> Note: if you are using `--snapshot` with empty tag name, you cannot use `{tag}` as placeholder - this will result in error.
+
+**Default behavior**
+
+If you are not specifying `prereleaseTemplate`, the default behavior will fall back to using the following template: `{tag}-{datetime}`, and in cases where the tag is empty (`--snapshot` with no tag name), it will use `{datetime}` only.

docs/experimental-options.md

@@ -0,0 +1,17 @@
+# Experimental Options
+
+All experimental options are configured in `config.json` under `___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH` flag.
+
+> Please use these experimental flags with caution, and please pay attention to release notes - these config flags might change in patch versions.
+
+## `updateInternalDependents` (type: `'out-of-range' | 'always'`)
+
+Default value: `out-of-range`.
+
+The config flag can be used to add dependent packages to the release (if they are not already a part of it) with patch bumps.
+
+## `onlyUpdatePeerDependentsWhenOutOfRange` (type: `boolean`)
+
+Default value: `false`
+
+When set to `true`, Changesets will only bump peer dependents when `peerDependencies` are leaving the range.

packages/apply-release-plan/src/index.test.ts

@@ -51,8 +51,11 @@ class FakeReleasePlan {
       ignore: [],
       ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
         onlyUpdatePeerDependentsWhenOutOfRange: false,
-        updateInternalDependents: "out-of-range",
-        useCalculatedVersionForSnapshots: false
+        updateInternalDependents: "out-of-range"
+      },
+      snapshot: {
+        useCalculatedVersion: false,
+        prereleaseTemplate: null
       },
       ...config
     };
@@ -87,10 +90,13 @@ async function testSetup(
       baseBranch: "main",
       updateInternalDependencies: "patch",
       ignore: [],
+      snapshot: {
+        useCalculatedVersion: false,
+        prereleaseTemplate: null
+      },
       ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
         onlyUpdatePeerDependentsWhenOutOfRange: false,
-        updateInternalDependents: "out-of-range",
-        useCalculatedVersionForSnapshots: false
+        updateInternalDependents: "out-of-range"
       }
     };
   }
@@ -490,8 +496,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -553,8 +562,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -743,8 +755,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -828,8 +843,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -905,8 +923,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -982,8 +1003,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -1062,8 +1086,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -1147,8 +1174,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -1224,8 +1254,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -1301,8 +1334,11 @@ describe("apply release plan", () => {
               ignore: [],
               ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
                 onlyUpdatePeerDependentsWhenOutOfRange: false,
-                updateInternalDependents: "out-of-range",
-                useCalculatedVersionForSnapshots: false
+                updateInternalDependents: "out-of-range"
+              },
+              snapshot: {
+                useCalculatedVersion: false,
+                prereleaseTemplate: null
               }
             }
           );
@@ -1382,8 +1418,11 @@ describe("apply release plan", () => {
             ignore: [],
             ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
               onlyUpdatePeerDependentsWhenOutOfRange: true,
-              updateInternalDependents: "out-of-range",
-              useCalculatedVersionForSnapshots: false
+              updateInternalDependents: "out-of-range"
+            },
+            snapshot: {
+              useCalculatedVersion: false,
+              prereleaseTemplate: null
             }
           }
         );
@@ -1544,8 +1583,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -1649,8 +1691,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -1734,8 +1779,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -1823,8 +1871,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );
@@ -1926,8 +1977,11 @@ describe("apply release plan", () => {
           ignore: [],
           ___experimentalUnsafeOptions_WILL_CHANGE_IN_PATCH: {
             onlyUpdatePeerDependentsWhenOutOfRange: false,
-            updateInternalDependents: "out-of-range",
-            useCalculatedVersionForSnapshots: false
+            updateInternalDependents: "out-of-range"
+          },
+          snapshot: {
+            useCalculatedVersion: false,
+            prereleaseTemplate: null
           }
         }
       );