René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Return promises instead of nesting them","articleBody":"The first example on the documentation reproduces callback hell which promises actually are supposed to prevent =D.\n\nInstead of:\n\n``` javascript\nvar clone = require(\"nodegit\").Clone.clone;\n\n// Clone a given repository into a tmp folder.\nclone(\"git://github.com/nodegit/nodegit\", \"tmp\").then(function(repo) {\n  // Use a known commit sha from this repository.\n  var sha = \"59b20b8d5c6ff8d09518454d4dd8b7b30f095ab5\";\n\n  // Look up this known commit.\n  repo.getCommit(sha).then(function(commit) {\n    // Look up a specific file within that commit.\n    commit.getEntry(\"README.md\").then(function(entry) {\n      // Get the blob contents from the file.\n      entry.getBlob().then(function(blob) {\n        // Show the name, sha, and filesize in byes.\n        console.log(entry.filename(), entry.sha(), blob.rawsize());\n\n        // Show a spacer.\n        console.log(Array(72).join(\"=\") + \"\\n\\n\");\n\n        // Show the entire file.\n        console.log(String(blob));\n      });\n    });\n  });\n});\n```\n\nyou should write\n\n``` javascript\nvar clone = require(\"nodegit\").Clone.clone;\n\n// Clone a given repository into a tmp folder.\nclone(\"git://github.com/nodegit/nodegit\", \"tmp\")\n    .then(function(repo) {\n        // Use a known commit sha from this repository.\n        var sha = \"59b20b8d5c6ff8d09518454d4dd8b7b30f095ab5\";\n\n        // Look up this known commit.\n        return repo.getCommit(sha)\n    })\n    .then(function(commit) {\n        // Look up a specific file within that commit.\n        return commit.getEntry(\"README.md\")\n    })\n    .then(function(entry) {\n        // Get the blob contents from the file.\n        return entry.getBlob()\n    })\n    .then(function(blob) {\n        // Show the name, sha, and filesize in byes.\n        console.log(entry.filename(), entry.sha(), blob.rawsize());\n\n        // Show a spacer.\n        console.log(Array(72).join(\"=\") + \"\\n\\n\");\n\n        // Show the entire file.\n        console.log(String(blob));\n    });\n```\n","author":{"url":"https://github.com/adius","@type":"Person","name":"adius"},"datePublished":"2015-02-15T17:55:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/407/nodegit/issues/407"}