Function apiSnapshotsDiff

api/snapshot.go:524–572

@Summary Snapshot diff @Description **Return the diff between two snapshots (name & withSnapshot)** @Description Provide `onlyMatching=1` to return only packages present in both snapshots. @Description Otherwise, returns a `left` and `right` result providing packages only in the first and second sna

(c *gin.Context)

// @Failure 500 {object} Error "Internal Server Error"
// @Router /api/snapshots/{name}/diff/{withSnapshot} [get]
func apiSnapshotsDiff(c *gin.Context) {
	onlyMatching := c.Request.URL.Query().Get("onlyMatching") == "1"

	collectionFactory := context.NewCollectionFactory()
	collection := collectionFactory.SnapshotCollection()

	snapshotA, err := collection.ByName(c.Params.ByName("name"))
	if err != nil {
		AbortWithJSONError(c, 404, err)
		return
	}

	snapshotB, err := collection.ByName(c.Params.ByName("withSnapshot"))
	if err != nil {
		AbortWithJSONError(c, 404, err)
		return
	}

	err = collection.LoadComplete(snapshotA)
	if err != nil {
		AbortWithJSONError(c, 500, err)
		return
	}

	err = collection.LoadComplete(snapshotB)
	if err != nil {
		AbortWithJSONError(c, 500, err)
		return
	}

	// Calculate diff
	diff, err := snapshotA.RefList().Diff(snapshotB.RefList(), collectionFactory.PackageCollection())
	if err != nil {
		AbortWithJSONError(c, 500, err)
		return
	}

	result := []deb.PackageDiff{}

	for _, pdiff := range diff {
		if onlyMatching && (pdiff.Left == nil || pdiff.Right == nil) {
			continue
		}

		result = append(result, pdiff)
	}

	c.JSON(200, result)
}

// @Summary List Snapshot Packages
// @Description **List all packages in snapshot or perform search on snapshot contents and return results**