still gets better

package-lock.json

@@ -52,6 +52,41 @@
         "tslib": "^1.9.0"
       }
     },
+    "@sindresorhus/df": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/@sindresorhus/df/-/df-2.1.0.tgz",
+      "integrity": "sha1-0gjPJ+BvC7R20U197M19cm6ao4k=",
+      "requires": {
+        "execa": "^0.2.2"
+      },
+      "dependencies": {
+        "execa": {
+          "version": "0.2.2",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.2.2.tgz",
+          "integrity": "sha1-4urUcsLDGq1vc/GslW7vReEjIMs=",
+          "requires": {
+            "cross-spawn-async": "^2.1.1",
+            "npm-run-path": "^1.0.0",
+            "object-assign": "^4.0.1",
+            "path-key": "^1.0.0",
+            "strip-eof": "^1.0.0"
+          }
+        },
+        "npm-run-path": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-1.0.0.tgz",
+          "integrity": "sha1-9cMr9ZX+ga6Sfa7FLoL4sACsPI8=",
+          "requires": {
+            "path-key": "^1.0.0"
+          }
+        },
+        "path-key": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/path-key/-/path-key-1.0.0.tgz",
+          "integrity": "sha1-XVPVeAGWRsDWiADbThRua9wqx68="
+        }
+      }
+    },
     "@types/body-parser": {
       "version": "1.17.1",
       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.17.1.tgz",
@@ -478,6 +513,19 @@
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     },
+    "array-union": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
+      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
+      "requires": {
+        "array-uniq": "^1.0.1"
+      }
+    },
+    "array-uniq": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
+      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY="
+    },
     "array-unique": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
@@ -1195,6 +1243,25 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "cp-file": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/cp-file/-/cp-file-6.2.0.tgz",
+      "integrity": "sha512-fmvV4caBnofhPe8kOcitBwSn2f39QLjnAnGq3gO9dfd75mUytzKNZB1hde6QHunW2Rt+OwuBOMc3i1tNElbszA==",
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "make-dir": "^2.0.0",
+        "nested-error-stacks": "^2.0.0",
+        "pify": "^4.0.1",
+        "safe-buffer": "^5.0.1"
+      },
+      "dependencies": {
+        "pify": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g=="
+        }
+      }
+    },
     "create-ecdh": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/create-ecdh/-/create-ecdh-4.0.3.tgz",
@@ -1241,6 +1308,15 @@
         "which": "^1.2.9"
       }
     },
+    "cross-spawn-async": {
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/cross-spawn-async/-/cross-spawn-async-2.2.5.tgz",
+      "integrity": "sha1-hF/wwINKPe2dFg2sptOQkGuyiMw=",
+      "requires": {
+        "lru-cache": "^4.0.0",
+        "which": "^1.2.8"
+      }
+    },
     "crypto-browserify": {
       "version": "3.12.0",
       "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz",
@@ -1397,6 +1473,14 @@
         "randombytes": "^2.0.0"
       }
     },
+    "dir-glob": {
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-2.2.2.tgz",
+      "integrity": "sha512-f9LBi5QWzIW3I6e//uxZoLBlUt9kcp66qo0sSCxL6YZKc75R1c4MFCoe/LaZiBGmgujvQdxc5Bn3QhfyvK5Hsw==",
+      "requires": {
+        "path-type": "^3.0.0"
+      }
+    },
     "domain-browser": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/domain-browser/-/domain-browser-1.2.0.tgz",
@@ -2780,6 +2864,19 @@
         "which": "^1.2.14"
       }
     },
+    "globby": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/globby/-/globby-7.1.1.tgz",
+      "integrity": "sha1-+yzP+UAfhgCUXfral0QMypcrhoA=",
+      "requires": {
+        "array-union": "^1.0.1",
+        "dir-glob": "^2.0.0",
+        "glob": "^7.1.2",
+        "ignore": "^3.3.5",
+        "pify": "^3.0.0",
+        "slash": "^1.0.0"
+      }
+    },
     "graceful-fs": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.2.tgz",
@@ -2931,6 +3028,11 @@
       "integrity": "sha1-xg7taebY/bazEEofy8ocGS3FtQE=",
       "dev": true
     },
+    "ignore": {
+      "version": "3.3.10",
+      "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.10.tgz",
+      "integrity": "sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug=="
+    },
     "ignore-walk": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
@@ -3131,6 +3233,14 @@
         }
       }
     },
+    "is-path-inside": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/is-path-inside/-/is-path-inside-2.1.0.tgz",
+      "integrity": "sha512-wiyhTzfDWsvwAW53OBWF5zuvaOGlZ6PwYxAbPVDhpm+gM09xKQGjBq/8uYN12aDvMxnAnq3dxTyoSoRNmg5YFg==",
+      "requires": {
+        "path-is-inside": "^1.0.2"
+      }
+    },
     "is-plain-object": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-2.0.4.tgz",
@@ -3431,7 +3541,6 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-2.1.0.tgz",
       "integrity": "sha512-LS9X+dc8KLxXCb8dni79fLIIUA5VyZoyjSMCwTluaXA0o27cCK0bhXkpgw+sTXVpPy/lSO57ilRixqk0vDmtRA==",
-      "dev": true,
       "requires": {
         "pify": "^4.0.1",
         "semver": "^5.6.0"
@@ -3440,8 +3549,7 @@
         "pify": {
           "version": "4.0.1",
           "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
-          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g=="
-          "dev": true
         }
       }
     },
@@ -3683,6 +3791,28 @@
         }
       }
     },
+    "mount-point": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/mount-point/-/mount-point-3.0.0.tgz",
+      "integrity": "sha1-Zly57evoDREOZY21bDHQrvUaj5c=",
+      "requires": {
+        "@sindresorhus/df": "^1.0.1",
+        "pify": "^2.3.0",
+        "pinkie-promise": "^2.0.1"
+      },
+      "dependencies": {
+        "@sindresorhus/df": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/@sindresorhus/df/-/df-1.0.1.tgz",
+          "integrity": "sha1-xptm9S9vzdKHyAffIQMF2694UA0="
+        },
+        "pify": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
+        }
+      }
+    },
     "move-concurrently": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/move-concurrently/-/move-concurrently-1.0.1.tgz",
@@ -3708,6 +3838,31 @@
         }
       }
     },
+    "move-file": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/move-file/-/move-file-1.2.0.tgz",
+      "integrity": "sha512-USHrRmxzGowUWAGBbJPdFjHzEqtxDU03pLHY0Rfqgtnq+q8FOIs8wvkkf+Udmg77SJKs47y9sI0jJvQeYsmiCA==",
+      "requires": {
+        "cp-file": "^6.1.0",
+        "make-dir": "^3.0.0",
+        "path-exists": "^3.0.0"
+      },
+      "dependencies": {
+        "make-dir": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.0.0.tgz",
+          "integrity": "sha512-grNJDhb8b1Jm1qeqW5R/O63wUo4UXo2v2HMic6YT9i/HBlF93S8jkMgH7yugvY9ABDShH4VZMn8I+U8+fCNegw==",
+          "requires": {
+            "semver": "^6.0.0"
+          }
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -3783,6 +3938,11 @@
       "integrity": "sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==",
       "dev": true
     },
+    "nested-error-stacks": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/nested-error-stacks/-/nested-error-stacks-2.1.0.tgz",
+      "integrity": "sha512-AO81vsIO1k1sM4Zrd6Hu7regmJN1NSiAja10gc4bX3F0wd+9rQmcuHQaHVQCYIEC8iFXnE+mavh23GOt7wBgug=="
+    },
     "nice-try": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
@@ -4090,11 +4250,15 @@
         "p-limit": "^2.0.0"
       }
     },
+    "p-map": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/p-map/-/p-map-2.1.0.tgz",
+      "integrity": "sha512-y3b8Kpd8OAN444hxfBbFfj1FY/RjtTd8tzYwhUqNYXx0fXx2iX4maP4Qr6qhIKbQXI02wTLAda4fYUbDagTUFw=="
+    },
     "p-try": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
-      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ=="
-      "dev": true
     },
     "packet-reader": {
       "version": "1.0.0",
@@ -4181,14 +4345,18 @@
     "path-exists": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
-      "dev": true
     },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
+    "path-is-inside": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/path-is-inside/-/path-is-inside-1.0.2.tgz",
+      "integrity": "sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM="
+    },
     "path-key": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
@@ -4218,6 +4386,14 @@
       "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
       "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
     },
+    "path-type": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+      "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
+      "requires": {
+        "pify": "^3.0.0"
+      }
+    },
     "pbkdf2": {
       "version": "3.0.17",
       "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.17.tgz",
@@ -4315,6 +4491,19 @@
       "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
       "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY="
     },
+    "pinkie": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
+      "integrity": "sha1-clVrgM+g1IqXToDnckjoDtT3+HA="
+    },
+    "pinkie-promise": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
+      "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
+      "requires": {
+        "pinkie": "^2.0.0"
+      }
+    },
     "pkg-dir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-3.0.0.tgz",
@@ -4909,6 +5098,11 @@
         }
       }
     },
+    "slash": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
+      "integrity": "sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU="
+    },
     "snapdragon": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
@@ -5250,8 +5444,7 @@
     "strip-eof": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
-      "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
+      "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8="
-      "dev": true
     },
     "strip-json-comments": {
       "version": "2.0.1",
@@ -5421,6 +5614,36 @@
         }
       }
     },
+    "trash": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/trash/-/trash-6.0.0.tgz",
+      "integrity": "sha512-5/ZF/7yPYX9Q8e4Dop2WMClV8VRJiWybUV2FhPovkm0I2csNlmY2DXpcCa50UObXx2+SE6421ViTa4sTpEA4WA==",
+      "requires": {
+        "globby": "^7.1.1",
+        "is-path-inside": "^2.0.0",
+        "make-dir": "^3.0.0",
+        "move-file": "^1.1.0",
+        "p-map": "^2.0.0",
+        "p-try": "^2.2.0",
+        "uuid": "^3.3.2",
+        "xdg-trashdir": "^2.1.1"
+      },
+      "dependencies": {
+        "make-dir": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-3.0.0.tgz",
+          "integrity": "sha512-grNJDhb8b1Jm1qeqW5R/O63wUo4UXo2v2HMic6YT9i/HBlF93S8jkMgH7yugvY9ABDShH4VZMn8I+U8+fCNegw==",
+          "requires": {
+            "semver": "^6.0.0"
+          }
+        },
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "ts-loader": {
       "version": "5.4.5",
       "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-5.4.5.tgz",
@@ -5601,6 +5824,14 @@
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
       "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ=="
     },
+    "user-home": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/user-home/-/user-home-2.0.0.tgz",
+      "integrity": "sha1-nHC/2Babwdy/SGBODwS4tJzenp8=",
+      "requires": {
+        "os-homedir": "^1.0.0"
+      }
+    },
     "util": {
       "version": "0.10.4",
       "resolved": "https://registry.npmjs.org/util/-/util-0.10.4.tgz",
@@ -5825,6 +6056,33 @@
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
+    "xdg-basedir": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-2.0.0.tgz",
+      "integrity": "sha1-7byQPMOF/ARSPZZqM1UEtVBNG9I=",
+      "requires": {
+        "os-homedir": "^1.0.0"
+      }
+    },
+    "xdg-trashdir": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/xdg-trashdir/-/xdg-trashdir-2.1.1.tgz",
+      "integrity": "sha512-KcVhPaOu2ZurYNHSRTf1+ZHORkTZGCQ+u0JHN17QixRISJq4pXOnjt/lQcehvtHL5QAKhSzKgyjrcNnPdkPBHA==",
+      "requires": {
+        "@sindresorhus/df": "^2.1.0",
+        "mount-point": "^3.0.0",
+        "pify": "^2.2.0",
+        "user-home": "^2.0.0",
+        "xdg-basedir": "^2.0.0"
+      },
+      "dependencies": {
+        "pify": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
+        }
+      }
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",

package.json

@@ -37,6 +37,7 @@
     "rimraf": "^3.0.0",
     "simple-git": "^1.124.0",
     "spawn-sync": "^2.0.0",
+    "trash": "^6.0.0",
     "uuid": "^3.3.2"
   },
   "devDependencies": {

src/backend/UpdateManger.ts

@@ -9,6 +9,8 @@ import { FrontblockAdmin } from "./FrontblockAdmin";
 import { TableDefiniton } from "frontblock-generic/Admin";
 import { promises as fs, mkdirSync as mkdir } from "fs"
 import { version } from "punycode";
+import * as git from "simple-git/promise"
+import * as trash from "trash"
 
 var exec = require('child-process-promise').exec;
 
@@ -45,8 +47,8 @@ const SharedStatus = <Status>
 
 type SharedStatus = {
     name: string
-    installed: boolean
+    installed?: boolean
-    outdated: boolean
+    outdated?: boolean
 }
 
 abstract class Extension<Status extends SharedStatus>{
@@ -55,80 +57,91 @@ abstract class Extension<Status extends SharedStatus>{
     ){}
 
     /**
-     * promises the generic Status object
+     * the generic Status object
      */
-    abstract async status():Promise<Status>
+    protected async status():Promise<Status>{
+        const installed = await this.isInstalled()
+        const outdated = await this.isOutdated()
+        return <Status>{ name: this.name, installed: installed, outdated: outdated }
+    }
+
     /**
-     * promises a boolean.
+     * true => extension was installed
-     * true => isInstalled should be true afterwards
+     * false => extension was not install
-     * false => an error happend and nothing was installed
+     * undefined => signals error
      */
-    abstract async install():Promise<boolean>
+    abstract async install():Promise<boolean | undefined>
+
     /**
-     * promises a boolean.
+     * reverts the install procedure
-     * true => isInstalled should be false afterwards
-     * false => the function was not able to bring this plugin into an uninstalled state!!!
      */
-    abstract async uninstall():Promise<boolean>
+    abstract async uninstall():Promise<void>
 
     /**
-     * promises a boolean.
      * true => an update was performed
      * false => no update was performed
+     * undefined => signals error
      */
-    abstract async update(): Promise<boolean>
+    abstract async update(force?: boolean): Promise<boolean | undefined>
 
     /**
-     * promises a boolean
      * true => update would install a newer version
-     * false => nothing would happen if update would be called
+     * false => nothing would be updated if update would be performed
+     * undefined => signals error
      */
-    abstract async isOutdated():Promise<boolean>
+    abstract async isOutdated():Promise<boolean | undefined>
 
     /**
      * promises a boolean
      * true => install would do nothing would it be called
      * false => install would try to install the newest extension
+     * undefined => signals error
      */
-    abstract async isInstalled():Promise<boolean>
+    abstract async isInstalled():Promise<boolean | undefined>
 }
 
 export type FSStatus = SharedStatus & {
     prefix: string 
-    empty: boolean
+    empty?: boolean
 }
 
-export abstract class FSExtension<Status extends FSStatus> extends Extension<FSStatus>{
+export abstract class FSExtension<Status extends FSStatus> extends Extension<Status>{
     constructor(
         name: string, 
         protected readonly prefix: string){
             super(name)
-            logger.debug('Creating extension directory', path.resolve(prefix, name))
-            mkdir(path.resolve(prefix, name))
     }
 
-    public async status(): Promise<Status | FSStatus>{
+    public async status(): Promise<Status>{
-        const installed = await this.isInstalled()
+        const shdStatus = await super.status()
-        const outdated = await this.isOutdated()
         const empty = await this.isEmpty()
-        return {
+        return <Status>{...shdStatus, prefix: this.prefix, empty: empty}
-            name: this.name,
-            prefix: this.prefix,
-            installed: installed,
-            outdated: outdated,
-            empty: empty
-        }
     }
 
-    public async uninstall(): Promise<boolean>{
+    public async install():Promise<boolean>{
-        return await rmrf(path.resolve(this.prefix, this.name))
+        const installed = await this.isInstalled()
+        if (!installed) {
+            logger.info('Installing extension to', path.resolve(this.prefix, this.name))
+            mkdir(path.resolve(this.prefix, this.name), {recursive: true})
+            return true
+        }
+        logger.warn('Extension already installed at', path.resolve(this.prefix, this.name))
+        return false
     }
 
-    public async isEmpty(): Promise<boolean>{
+    public async uninstall(): Promise<void>{
-        if (!this.isInstalled) return false
+        logger.info('Uninstalling extension from', path.resolve(this.prefix, this.name))
-        else {
+        return await trash(path.resolve(this.prefix, this.name))
-            const files = await fs.readdir(this.prefix)
+    }
+
+    public async isEmpty(): Promise<boolean | undefined>{
+        if (!this.isInstalled()) return true
+        try {
+            const files = await fs.readdir(path.resolve(this.prefix, this.name))
             return files.length === 0
+        } catch (error) {
+            logger.warn('TODO')
+            return
         }
     }
 
@@ -159,28 +172,8 @@ export class NPMExtension extends FSExtension<NPMStatus>{
     public async status(): Promise<NPMStatus> {
 
         const fsStatus = await super.status()
-        const { 
+        const latest = await this.getLatest()
-            latestError, 
+        const author = await this.getAuthor()
-            latest, 
-            latestStdErr } = await exec('npm view --prefix ' + this.prefix + ' ' + this.name + " version")
-
-        if(latestError){
-            logger.warn(latestStdErr)
-            return fsStatus
-        }
-
-        const { 
-            authorError, 
-            author, 
-            authorStdErr } = await exec('npm author ls --prefix ' + this.prefix + ' ' + this.name)
-
-        if(authorError){
-            logger.warn(authorStdErr)
-            return { 
-                ...fsStatus, 
-                latest: latest} 
-        }
-
         return {  
             ...fsStatus, 
             latest: latest,
@@ -189,6 +182,7 @@ export class NPMExtension extends FSExtension<NPMStatus>{
     }
 
     public async install(): Promise<boolean> {
+        super.install()
         logger.info("npm install", this.name, 'to', path.resolve(this.prefix, this.name))
         const { error, stdout, stderr } = await exec('npm install --prefix '+ this.prefix + ' ' + this.name)
         if (error !== null) {
@@ -200,22 +194,21 @@ export class NPMExtension extends FSExtension<NPMStatus>{
         }
     }
     
-    public async uninstall(): Promise<boolean> {
+    public async uninstall(): Promise<void> {
+        super.uninstall()
         logger.info("npm uninstall", this.name, 'from', path.resolve(this.prefix, this.name))
         const { error, stdout, stderr } = await exec('npm uninstall --prefix '+ this.prefix + ' ' + this.name)
-        if (error !== null) {
+        if (error) {
             logger.warn('npm uninstall', this.name, 'from prefix', this.prefix, 'stderr:', stderr)
-            return false
         } else {
             logger.info('npm uninstall', this.name, 'from prefix', this.prefix, 'stdout:', stdout)
-            return true
         }
     }
 
     public async update(): Promise<boolean> {
         logger.info("npm update", path.resolve(this.prefix, this.name))
         const { error, stdout, stderr } = await exec('npm update --prefix '+ this.prefix + ' ' + this.name)
-        if (error !== null) {
+        if (error) {
             logger.warn('npm update', this.name, 'from prefix', this.prefix, 'stderr:', stderr)
             return false
         } else {
@@ -224,26 +217,48 @@ export class NPMExtension extends FSExtension<NPMStatus>{
         }
     }
 
-    public async isOutdated(): Promise<boolean> {
+    public async isOutdated(): Promise<boolean | undefined> {
         try {
             const { 
                 error, 
                 stdout, 
                 stderr } = await exec('npm outdated --prefix ' + this.prefix + " --json" + ' ' + this.name)
-            if (error){
+            if (error) throw new Error(stderr)
-                logger.warn(stderr)
+            if (Object.keys(JSON.parse(stdout)).length > 0) return true
-                return false
+            else return false
-            }
-            const status = JSON.parse(stdout)
-            if (status){
-                const outdated = (Object.keys(status).length > 0)
-                if (outdated){
-                    return true
-                }
-            }
-            return false
         } catch (error) {
-            return false
+            logger.warn('npm outdated', this.name, 'from prefix', this.prefix, 'stderr:', error)
+            return
+        }
+    }
+
+    private async getAuthor(): Promise<string | undefined>{
+        const { 
+            error, 
+            stdout, 
+            stderr } = await exec('npm author ls --prefix ' + this.prefix + ' ' + this.name)
+
+        if(error){
+            logger.warn(stderr)
+            return
+        } else {
+            logger.info(stdout)
+            return stdout
+        }
+    }
+
+    private async getLatest(): Promise<string | undefined>{
+        const { 
+            error, 
+            stdout, 
+            stderr } = await exec('npm view --prefix ' + this.prefix + ' ' + this.name + " version")
+
+        if(error){
+            logger.warn(stderr)
+            return
+        } else {
+            logger.info(stdout)
+            return stdout
         }
     }
 }
@@ -254,21 +269,38 @@ export type GitStatus = FSStatus & {
     latest?: string
 }
 
-export class GitExtension extends FSExtension<GitStatus>{
+export class GitExtension<Status extends GitStatus> extends FSExtension<Status>{
+    protected repo: git.SimpleGit
     constructor(
         name:string,
         prefix:string,
-        protected gitCloneURL: URL
+        protected gitCloneURL: string,
+        protected credentials?: [string, string]
     ){
         super(name, version)
     }
 
-    public async status(): Promise<GitStatus>{
+    public async status(): Promise<Status>{
-        //TODO tomorrow
+        const fsStatus = await super.status()
+
+        return {  
+            ...fsStatus, 
+            branch: 'wat',
+            remote: this.gitCloneURL,
+            latest: 'kek'
+        }
     }
 
     public async install(): Promise<boolean> {
-        return true
+        if (!this.isInstalled()){
+            if (this.credentials){
+
+            } else {
+
+            }
+        } else {
+
+        }
     }