From 512235002614e8c0eff1fd9961262b8eb3e828c2 Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Tue, 17 Apr 2018 10:49:32 +0200
Subject: [PATCH] Add make-jenkins filter to find Makefiles with `jenkins`
 target

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 .gitignore |  1 +
 filters.go | 38 +++++++++++++++++++++++++++++++++-----
 2 files changed, 34 insertions(+), 5 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bc47dbd
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+repo-template
diff --git a/filters.go b/filters.go
index 2db2002..684eaf1 100644
--- a/filters.go
+++ b/filters.go
@@ -2,7 +2,9 @@ package main
 
 import (
 	"context"
+	"strings"
 
+	"github.com/Luzifer/go_helpers/str"
 	"github.com/google/go-github/github"
 	log "github.com/sirupsen/logrus"
 )
@@ -10,10 +12,11 @@ import (
 type filterFunc func(*github.Repository) bool
 
 var filters = map[string]filterFunc{
-	"archived":   filterArchived,
-	"fork":       filterFork,
-	"dockerfile": filterDockerfile,
-	"public":     filterPublic,
+	"archived":     filterArchived,
+	"dockerfile":   filterDockerfile,
+	"fork":         filterFork,
+	"make-jenkins": filterMakeJenkins,
+	"public":       filterPublic,
 }
 
 func filterArchived(repo *github.Repository) bool { return repo.Archived != nil && *repo.Archived }
@@ -33,5 +36,30 @@ func filterDockerfile(repo *github.Repository) bool {
 	return true
 }
 
-func filterFork(repo *github.Repository) bool   { return repo.Fork != nil && *repo.Fork }
+func filterFork(repo *github.Repository) bool { return repo.Fork != nil && *repo.Fork }
+
+func filterMakeJenkins(repo *github.Repository) bool {
+	ctx := context.Background()
+	fc, _, resp, err := client.Repositories.GetContents(ctx, *repo.Owner.Login, *repo.Name, "Makefile", nil)
+	if err != nil {
+		if resp.StatusCode == 404 {
+			return false
+		}
+
+		log.WithError(err).Error("Error while looking for Dockerfile")
+		return false
+	}
+
+	if fc.Content == nil {
+		log.Error("File content had no content")
+		return false
+	}
+
+	if str.StringInSlice("jenkins:", strings.Split(*fc.Content, "\n")) {
+		return true
+	}
+
+	return false
+}
+
 func filterPublic(repo *github.Repository) bool { return repo.Private != nil && !*repo.Private }