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branch.go
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branch.go
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package keeper
import (
"encoding/binary"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/gitopia/gitopia/v2/x/gitopia/types"
)
// GetBranchCount get the total number of branch
func (k Keeper) GetBranchCount(ctx sdk.Context) uint64 {
store := prefix.NewStore(ctx.KVStore(k.storeKey), []byte{})
byteKey := types.KeyPrefix(types.BranchCountKey)
bz := store.Get(byteKey)
// Count doesn't exist: no element
if bz == nil {
return 0
}
// Parse bytes
return binary.BigEndian.Uint64(bz)
}
// SetBranchCount set the total number of branch
func (k Keeper) SetBranchCount(ctx sdk.Context, count uint64) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), []byte{})
byteKey := types.KeyPrefix(types.BranchCountKey)
bz := make([]byte, 8)
binary.BigEndian.PutUint64(bz, count)
store.Set(byteKey, bz)
}
// AppendBranch appends a branch in the store with a new id and update the count
func (k Keeper) AppendBranch(
ctx sdk.Context,
branch types.Branch,
) uint64 {
// Create the branch
count := k.GetBranchCount(ctx)
// Set the ID of the appended value
branch.Id = count
store := prefix.NewStore(
ctx.KVStore(k.storeKey),
types.KeyPrefix(types.GetBranchKeyForRepositoryId(branch.RepositoryId)),
)
appendedValue := k.cdc.MustMarshal(&branch)
store.Set([]byte(branch.Name), appendedValue)
// Update branch count
k.SetBranchCount(ctx, count+1)
return count
}
// SetBranch set a specific branch in the store for repository-id
func (k Keeper) SetRepositoryBranch(ctx sdk.Context, branch types.Branch) {
store := prefix.NewStore(
ctx.KVStore(k.storeKey),
types.KeyPrefix(types.GetBranchKeyForRepositoryId(branch.RepositoryId)),
)
b := k.cdc.MustMarshal(&branch)
store.Set([]byte(branch.Name), b)
}
// GetRepositoryBranch returns a branch from its name
func (k Keeper) GetRepositoryBranch(ctx sdk.Context, repositoryId uint64, branch string) (val types.Branch, found bool) {
store := prefix.NewStore(
ctx.KVStore(k.storeKey),
types.KeyPrefix(types.GetBranchKeyForRepositoryId(repositoryId)),
)
b := store.Get([]byte(branch))
if b == nil {
return val, false
}
k.cdc.MustUnmarshal(b, &val)
return val, true
}
// RemoveBranch removes a branch from the store
func (k Keeper) RemoveRepositoryBranch(ctx sdk.Context, repositoryId uint64, branchName string) {
store := prefix.NewStore(
ctx.KVStore(k.storeKey),
types.KeyPrefix(types.GetBranchKeyForRepositoryId(repositoryId)),
)
store.Delete([]byte(branchName))
}
// GetAllBranch returns all branch
func (k Keeper) GetAllBranch(ctx sdk.Context) (list []types.Branch) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.BranchKey))
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var val types.Branch
k.cdc.MustUnmarshal(iterator.Value(), &val)
list = append(list, val)
}
return
}
// GetAllRepositoryBranch returns all branch for repository-id
func (k Keeper) GetAllRepositoryBranch(ctx sdk.Context, repositoryId uint64) (list []types.Branch) {
store := prefix.NewStore(
ctx.KVStore(k.storeKey),
types.KeyPrefix(types.GetBranchKeyForRepositoryId(repositoryId)),
)
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var val types.Branch
k.cdc.MustUnmarshal(iterator.Value(), &val)
list = append(list, val)
}
return
}
// GetBranchIDBytes returns the byte representation of the ID
func GetBranchIDBytes(id uint64) []byte {
bz := make([]byte, 8)
binary.BigEndian.PutUint64(bz, id)
return bz
}
// GetBranchIDFromBytes returns ID in uint64 format from a byte array
func GetBranchIDFromBytes(bz []byte) uint64 {
return binary.BigEndian.Uint64(bz)
}