feat!: add crawl-software command and remove one (#398)

Add a new `crawl-software` command that replaces the non functional
`one` command.

Fix #122.

README.md

@@ -9,15 +9,15 @@
 Developers Italia provides [a catalog of Free and Open Source](https://developers.italia.it/en/search)
 software aimed to Public Administrations.
 
-This **crawler** retrieves the `publiccode.yml` files from the
+`publiccode-crawler` retrieves the `publiccode.yml` files from the
 repositories of publishers found in the [Developers Italia API](https://github.com/italia/developers-italia-api).
 
 ## Setup and deployment processes
 
-The crawler can either run manually on the target machine or it can be deployed
+`publiccode-crawler` can either run manually on the target machine or it can be deployed
 from a Docker container.
 
-### Manually configure and build the crawler
+### Manually configure and build
 
 1. Rename `config.toml.example` to `config.toml` and set the variables
 
@@ -43,16 +43,23 @@ docker run -it italia/publiccode-crawler
 
 ## Commands
 
-### `crawler crawl`
+### `publiccode-crawler crawl`
 
 Gets the list of publishers from `https://api.developers.italia.it/v1/publishers`
 and starts to crawl their repositories.
 
-### `crawler crawl publishers*.yml`
+### `publiccode-crawler crawl publishers*.yml`
 
 Gets the list of publishers in `publishers*.yml` and starts to crawl
 their repositories.
 
+### `publiccode-crawler crawl-software <software> <publisher>`
+
+Crawl just the software specified as paramenter.
+It takes the software URL and its publisher id as parameters.
+
+Ex. `publiccode-crawler crawl-software https://api.developers.italia.it/v1/software/a2ea59b0-87cd-4419-b93f-00bed8a7b859 edb66b3d-3e36-4b69-aba9-b7c4661b3fdd"
+
 ### Other commands
 
 * `crawler download-publishers` downloads organizations and repositories from

apiclient/apiclient.go

@@ -192,6 +192,25 @@ page:
 	return publishers, nil
 }
 
+// GetSoftware returns the software with the given id or any error encountered.
+func (clt APIClient) GetSoftware(id string) (*Software, error) {
+	var softwareResponse Software
+
+	res, err := clt.retryableClient.Get(joinPath(clt.baseURL, "/software") + "/" + id)
+	if err != nil {
+		return nil, fmt.Errorf("can't GET /software/%s: %w", id, err)
+	}
+
+	defer res.Body.Close()
+
+	err = json.NewDecoder(res.Body).Decode(&softwareResponse)
+	if err != nil {
+		return nil, fmt.Errorf("can't parse GET /software/%s response: %w", id, err)
+	}
+
+	return &softwareResponse, nil
+}
+
 // GetSoftwareByURL returns the software matching the given repo URL and
 // any error encountered.
 // In case no software is found and no error occours, (nil, nil) is returned.

cmd/crawl-software.go

@@ -0,0 +1,43 @@
+package cmd
+
+import (
+	"github.com/italia/publiccode-crawler/v4/common"
+	"github.com/italia/publiccode-crawler/v4/crawler"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+func init() {
+	crawlSoftwareCmd.Flags().BoolVarP(&dryRun, "dry-run", "n", false, "perform a dry run with no changes made")
+
+	rootCmd.AddCommand(crawlSoftwareCmd)
+}
+
+var crawlSoftwareCmd = &cobra.Command{
+	Use:   "crawl-software [SOFTWARE_ID | SOFTWARE_URL] PUBLISHER_ID",
+	Short: "Crawl a single software by its id.",
+	Long: `Crawl a single software by its id.
+
+Crawl a single software given its API id and its publisher.`,
+	Example: "# Crawl just the specified software\n" +
+		"publiccode-crawler crawl-software" +
+		" https://api.developers.italia.it/v1/software/af6056fc-b2b2-4d31-9961-c9bd94e32bd4 PCM",
+
+	Args: cobra.ExactArgs(2),
+	Run: func(_ *cobra.Command, args []string) {
+		if token := viper.GetString("GITHUB_TOKEN"); token == "" {
+			log.Fatal("Please set GITHUB_TOKEN, it's needed to use the GitHub API'")
+		}
+
+		c := crawler.NewCrawler(dryRun)
+
+		publisher := common.Publisher{
+			ID: args[1],
+		}
+
+		if err := c.CrawlSoftwareByID(args[0], publisher); err != nil {
+			log.Fatal(err)
+		}
+	},
+}

cmd/crawl.go

@@ -16,12 +16,21 @@ func init() {
 }
 
 var crawlCmd = &cobra.Command{
-	Use:   "crawl publishers.yml [directory/*.yml ...]",
+	Use:   "crawl [publishers.yml] [directory/*.yml ...]",
 	Short: "Crawl publiccode.yml files in publishers' repos.",
 	Long: `Crawl publiccode.yml files in publishers' repos.
 
 When run with no arguments, the publishers are fetched from the API,
 otherwise the passed YAML files are used.`,
+	Example: `
+# Crawl publishers fetched from the API
+crawl
+
+# Crawl using a specific publishers.yml file
+crawl publishers.yml
+
+# Crawl all YAML files in a specific directory
+crawl directory/*.yml`,
 
 	Args: cobra.MinimumNArgs(0),
 	Run: func(_ *cobra.Command, args []string) {

cmd/root.go

@@ -8,7 +8,7 @@ import (
 var (
 	dryRun  bool
 	rootCmd = &cobra.Command{
-		Use:   "crawler",
+		Use:   "publiccode-crawler",
 		Short: "A crawler for publiccode.yml files.",
 		Long: `A fast and robust publiccode.yml file crawler.
 Complete documentation is available at https://github.com/italia/publiccode-crawler`,

crawler/crawler.go

@@ -6,6 +6,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"path"
 	"regexp"
 	"runtime"
 	"strings"
@@ -83,18 +84,38 @@ func NewCrawler(dryRun bool) *Crawler {
 	return &c
 }
 
-// CrawlRepo crawls a single repository (only used by the 'one' command).
-func (c *Crawler) CrawlRepo(repoURL url.URL, publisher common.Publisher) error {
-	log.Infof("Processing repository: %s", repoURL.String())
+// CrawlSoftwareByAPIURL crawls a single software.
+func (c *Crawler) CrawlSoftwareByID(software string, publisher common.Publisher) error {
+	var id string
+
+	softwareURL, err := url.Parse(software)
+	if err != nil {
+		id = software
+	} else {
+		id = path.Base(softwareURL.Path)
+	}
+
+	s, err := c.apiClient.GetSoftware(id)
+	if err != nil {
+		return err
+	}
+
+	s.URL = strings.TrimSuffix(s.URL, ".git")
+
+	repoURL, err := url.Parse(s.URL)
+	if err != nil {
+		return err
+	}
+
+	log.Infof("Processing repository: %s", softwareURL.String())
 
-	var err error
 	switch {
-	case vcsurl.IsGitHub(&repoURL):
-		err = c.gitHubScanner.ScanRepo(repoURL, publisher, c.repositories)
-	case vcsurl.IsBitBucket(&repoURL):
-		err = c.bitBucketScanner.ScanRepo(repoURL, publisher, c.repositories)
-	case vcsurl.IsGitLab(&repoURL):
-		err = c.gitLabScanner.ScanRepo(repoURL, publisher, c.repositories)
+	case vcsurl.IsGitHub(repoURL):
+		err = c.gitHubScanner.ScanRepo(*repoURL, publisher, c.repositories)
+	case vcsurl.IsBitBucket(repoURL):
+		err = c.bitBucketScanner.ScanRepo(*repoURL, publisher, c.repositories)
+	case vcsurl.IsGitLab(repoURL):
+		err = c.gitLabScanner.ScanRepo(*repoURL, publisher, c.repositories)
 	default:
 		err = fmt.Errorf(
 			"publisher %s: unsupported code hosting platform for %s",