gitforgefs/main.go

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package main
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import (
"flag"
"fmt"
"os"
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"path/filepath"
"strings"
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"github.com/badjware/gitlabfs/fstree"
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"github.com/badjware/gitlabfs/git"
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"github.com/badjware/gitlabfs/platforms/gitlab"
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"gopkg.in/yaml.v2"
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)
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type (
Config struct {
FS FSConfig `yaml:"fs,omitempty"`
Gitlab gitlab.GitlabClientConfig `yaml:"gitlab,omitempty"`
Git git.GitClientParam `yaml:"git,omitempty"`
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}
FSConfig struct {
Mountpoint string `yaml:"mountpoint,omitempty"`
MountOptions string `yaml:"mountoptions,omitempty"`
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}
)
func loadConfig(configPath string) (*Config, error) {
// defaults
dataHome := os.Getenv("XDG_DATA_HOME")
if dataHome == "" {
dataHome = filepath.Join(os.Getenv("HOME"), ".local/share")
}
defaultCloneLocation := filepath.Join(dataHome, "gitlabfs")
config := &Config{
FS: FSConfig{
Mountpoint: "",
MountOptions: "nodev,nosuid",
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},
Gitlab: gitlab.GitlabClientConfig{
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URL: "https://gitlab.com",
Token: "",
GroupIDs: []int{9970},
UserIDs: []int{},
IncludeCurrentUser: true,
PullMethod: "http",
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},
Git: git.GitClientParam{
CloneLocation: defaultCloneLocation,
Remote: "origin",
OnClone: "init",
AutoPull: false,
Depth: 0,
QueueSize: 200,
QueueWorkerCount: 5,
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},
}
if configPath != "" {
f, err := os.Open(configPath)
if err != nil {
return nil, fmt.Errorf("failed to open config file: %v", err)
}
defer f.Close()
d := yaml.NewDecoder(f)
if err := d.Decode(config); err != nil {
return nil, fmt.Errorf("failed to parse config file: %v", err)
}
}
return config, nil
}
func makeGitlabConfig(config *Config) (*gitlab.GitlabClientConfig, error) {
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// parse pull_method
if config.Gitlab.PullMethod != gitlab.PullMethodHTTP && config.Gitlab.PullMethod != gitlab.PullMethodSSH {
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return nil, fmt.Errorf("pull_method must be either \"%v\" or \"%v\"", gitlab.PullMethodHTTP, gitlab.PullMethodSSH)
}
return &config.Gitlab, nil
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}
func makeGitConfig(config *Config) (*git.GitClientParam, error) {
// parse on_clone
if config.Git.OnClone != "init" && config.Git.OnClone != "clone" {
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return nil, fmt.Errorf("on_clone must be either \"init\" or \"clone\"")
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}
return &config.Git, nil
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}
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func main() {
configPath := flag.String("config", "", "The config file")
mountoptionsFlag := flag.String("o", "", "Filesystem mount options. See mount.fuse(8)")
debug := flag.Bool("debug", false, "Enable debug logging")
flag.Usage = func() {
fmt.Println("USAGE:")
fmt.Printf(" %s MOUNTPOINT\n\n", os.Args[0])
fmt.Println("OPTIONS:")
flag.PrintDefaults()
}
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flag.Parse()
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config, err := loadConfig(*configPath)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
// Configure mountpoint
mountpoint := config.FS.Mountpoint
if flag.NArg() == 1 {
mountpoint = flag.Arg(0)
}
if mountpoint == "" {
fmt.Println("Mountpoint is not configured in config file and missing from command-line arguments")
flag.Usage()
os.Exit(2)
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}
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// Configure mountoptions
mountoptions := config.FS.MountOptions
if *mountoptionsFlag != "" {
mountoptions = *mountoptionsFlag
}
parsedMountoptions := make([]string, 0)
if mountoptions != "" {
parsedMountoptions = strings.Split(mountoptions, ",")
}
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// Create the git client
gitClientParam, err := makeGitConfig(config)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
}
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gitClient, _ := git.NewClient(*gitClientParam)
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// Create the gitlab client
GitlabClientConfig, err := makeGitlabConfig(config)
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if err != nil {
fmt.Println(err)
os.Exit(1)
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}
gitlabClient, _ := gitlab.NewClient(config.Gitlab.URL, config.Gitlab.Token, *GitlabClientConfig)
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// Start the filesystem
err = fstree.Start(
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mountpoint,
parsedMountoptions,
&fstree.FSParam{GitClient: gitClient, GitPlatform: gitlabClient},
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*debug,
)
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if err != nil {
fmt.Println(err)
os.Exit(1)
}
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}