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paths.go
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paths.go
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// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package workspace
import (
"fmt"
"os"
"os/user"
"path/filepath"
"strings"
"github.com/pkg/errors"
"github.com/pulumi/pulumi/pkg/encoding"
"github.com/pulumi/pulumi/pkg/tokens"
"github.com/pulumi/pulumi/pkg/util/fsutil"
)
const (
// BackupDir is the name of the folder where backup stack information is stored.
BackupDir = "backups"
// BookkeepingDir is the name of our bookeeping folder, we store state here (like .git for git).
BookkeepingDir = ".pulumi"
// ConfigDir is the name of the folder that holds local configuration information.
ConfigDir = "config"
// GitDir is the name of the folder git uses to store information.
GitDir = ".git"
// HistoryDir is the name of the directory that holds historical information for projects.
HistoryDir = "history"
// PluginDir is the name of the directory containing plugins.
PluginDir = "plugins"
// StackDir is the name of the directory that holds stack information for projects.
StackDir = "stacks"
// TemplateDir is the name of the directory containing templates.
TemplateDir = "templates"
// WorkspaceDir is the name of the directory that holds workspace information for projects.
WorkspaceDir = "workspaces"
// ProjectFile is the base name of a project file.
ProjectFile = "Pulumi"
// RepoFile is the name of the file that holds information specific to the entire repository.
RepoFile = "settings.json"
// WorkspaceFile is the name of the file that holds workspace information.
WorkspaceFile = "workspace.json"
// CachedVersionFile is the name of the file we use to store when we last checked if the CLI was out of date
CachedVersionFile = ".cachedVersionInfo"
)
// DetectProjectPath locates the closest project from the current working directory, or an error if not found.
func DetectProjectPath() (string, error) {
dir, err := os.Getwd()
if err != nil {
return "", err
}
path, err := DetectProjectPathFrom(dir)
if err != nil {
return "", err
}
return path, nil
}
// DetectProjectStackPath returns the name of the file to store stack specific project settings in. We place stack
// specific settings next to the Pulumi.yaml file, named like: Pulumi.<stack-name>.yaml
func DetectProjectStackPath(stackName tokens.QName) (string, error) {
proj, projPath, err := DetectProjectAndPath()
if err != nil {
return "", err
}
return filepath.Join(filepath.Dir(projPath), proj.Config, fmt.Sprintf("%s.%s%s", ProjectFile, qnameFileName(stackName),
filepath.Ext(projPath))), nil
}
// DetectProjectPathFrom locates the closest project from the given path, searching "upwards" in the directory
// hierarchy. If no project is found, an empty path is returned.
func DetectProjectPathFrom(path string) (string, error) {
return fsutil.WalkUp(path, isProject, func(s string) bool {
return true
})
}
// DetectProject loads the closest project from the current working directory, or an error if not found.
func DetectProject() (*Project, error) {
proj, _, err := DetectProjectAndPath()
return proj, err
}
func DetectProjectStack(stackName tokens.QName) (*ProjectStack, error) {
path, err := DetectProjectStackPath(stackName)
if err != nil {
return nil, err
}
return LoadProjectStack(path)
}
// DetectProjectAndPath loads the closest package from the current working directory, or an error if not found. It
// also returns the path where the package was found.
func DetectProjectAndPath() (*Project, string, error) {
path, err := DetectProjectPath()
if err != nil {
return nil, "", err
} else if path == "" {
return nil, "", errors.Errorf("no Pulumi project found in the current working directory")
}
proj, err := LoadProject(path)
return proj, path, err
}
// SaveProject saves the project file on top of the existing one, using the standard location.
func SaveProject(proj *Project) error {
path, err := DetectProjectPath()
if err != nil {
return err
}
return proj.Save(path)
}
func SaveProjectStack(stackName tokens.QName, stack *ProjectStack) error {
path, err := DetectProjectStackPath(stackName)
if err != nil {
return err
}
return stack.Save(path)
}
// isProject returns true if the path references what appears to be a valid project. If problems are detected -- like
// an incorrect extension -- they are logged to the provided diag.Sink (if non-nil).
func isProject(path string) bool {
return isMarkupFile(path, ProjectFile)
}
func isMarkupFile(path string, expect string) bool {
info, err := os.Stat(path)
if err != nil || info.IsDir() {
// Missing files and directories can't be markup files.
return false
}
// Ensure the base name is expected.
name := info.Name()
ext := filepath.Ext(name)
base := strings.TrimSuffix(name, ext)
if base != expect {
return false
}
// Check all supported extensions.
for _, mext := range encoding.Exts {
if name == expect+mext {
return true
}
}
return false
}
// GetCachedVersionFilePath returns the location where the CLI caches information from pulumi.com on the newest
// available version of the CLI
func GetCachedVersionFilePath() (string, error) {
user, err := user.Current()
if err != nil {
return "", err
}
return filepath.Join(user.HomeDir, BookkeepingDir, CachedVersionFile), nil
}