mirror of
https://github.com/dolthub/dolt.git
synced 2026-01-30 10:45:18 -06:00
52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
// Copyright 2019 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package utils contains utility functions for use throughout git-dolt.
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package utils
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import (
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"fmt"
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"os/exec"
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"regexp"
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"strings"
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)
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// EnsureSuffix adds a suffix to a string if not already present.
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func EnsureSuffix(s string, suffix string) string {
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if !strings.HasSuffix(s, suffix) {
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return s + suffix
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}
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return s
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}
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// LastSegment gets the last segment of a slash-separated string.
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func LastSegment(s string) string {
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tokens := strings.Split(s, "/")
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return tokens[len(tokens)-1]
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}
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var hashRegex = regexp.MustCompile(`[0-9a-v]{32}`)
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// CurrentRevision gets the commit hash of the currently checked-out revision of
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// the dolt repo at the given dirname.
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func CurrentRevision(dirname string) (string, error) {
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cmd := exec.Command("dolt", "log", "-n", "1")
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cmd.Dir = dirname
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out, err := cmd.Output()
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if err != nil {
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return "", fmt.Errorf("error running dolt log to find current revision: %v", err)
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}
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return hashRegex.FindString(string(out)), nil
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}
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