New shape for dependency listings

catalog.json

@@ -2,7 +2,7 @@
   "packages": {
     "ctre": {
       "2.7.0": {
-        "depends": {},
+        "depends": [],
         "description": "A compile-time PCRE (almost) compatible regular expression matcher",
         "git": {
           "auto-lib": "hanickadot/ctre",
@@ -13,7 +13,7 @@
     },
     "fmt": {
       "0.10.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -22,7 +22,7 @@
         }
       },
       "0.12.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -31,7 +31,7 @@
         }
       },
       "0.8.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -40,7 +40,7 @@
         }
       },
       "0.9.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -49,7 +49,7 @@
         }
       },
       "1.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -58,7 +58,7 @@
         }
       },
       "1.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -67,7 +67,7 @@
         }
       },
       "2.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -76,7 +76,7 @@
         }
       },
       "2.0.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -85,7 +85,7 @@
         }
       },
       "2.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -94,7 +94,7 @@
         }
       },
       "2.1.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -103,7 +103,7 @@
         }
       },
       "3.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -112,7 +112,7 @@
         }
       },
       "3.0.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -121,7 +121,7 @@
         }
       },
       "3.0.2": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -130,7 +130,7 @@
         }
       },
       "4.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -139,7 +139,7 @@
         }
       },
       "4.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -148,7 +148,7 @@
         }
       },
       "5.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -157,7 +157,7 @@
         }
       },
       "5.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -166,7 +166,7 @@
         }
       },
       "5.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -175,7 +175,7 @@
         }
       },
       "5.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -184,7 +184,7 @@
         }
       },
       "5.3.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -193,7 +193,7 @@
         }
       },
       "6.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -202,7 +202,7 @@
         }
       },
       "6.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -211,7 +211,7 @@
         }
       },
       "6.1.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -220,7 +220,7 @@
         }
       },
       "6.1.2": {
-        "depends": {},
+        "depends": [],
         "description": "A modern formatting library : https://fmt.dev/",
         "git": {
           "auto-lib": "fmt/fmt",
@@ -231,7 +231,7 @@
     },
     "ms-wil": {
       "2020.03.16": {
-        "depends": {},
+        "depends": [],
         "description": "The Windows Implementation Library",
         "git": {
           "ref": "dds/2020.03.16",
@@ -241,7 +241,7 @@
     },
     "neo-concepts": {
       "0.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.1.0",
@@ -249,7 +249,7 @@
         }
       },
       "0.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.2.0",
@@ -257,7 +257,7 @@
         }
       },
       "0.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.2.1",
@@ -265,7 +265,7 @@
         }
       },
       "0.2.2": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.2.2",
@@ -273,7 +273,7 @@
         }
       },
       "0.3.0": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.3.0",
@@ -281,7 +281,7 @@
         }
       },
       "0.3.1": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.3.1",
@@ -289,7 +289,7 @@
         }
       },
       "0.3.2": {
-        "depends": {},
+        "depends": [],
         "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
         "git": {
           "ref": "0.3.2",
@@ -299,7 +299,7 @@
     },
     "neo-fun": {
       "0.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.1.0",
@@ -307,7 +307,7 @@
         }
       },
       "0.1.1": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.1.1",
@@ -315,7 +315,7 @@
         }
       },
       "0.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.2.0",
@@ -323,7 +323,7 @@
         }
       },
       "0.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.2.1",
@@ -331,7 +331,7 @@
         }
       },
       "0.3.0": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.3.0",
@@ -339,7 +339,7 @@
         }
       },
       "0.3.1": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.3.1",
@@ -347,7 +347,7 @@
         }
       },
       "0.3.2": {
-        "depends": {},
+        "depends": [],
         "description": "Some library fundamentals that you might find useful",
         "git": {
           "ref": "0.3.2",
@@ -357,7 +357,7 @@
     },
     "neo-sqlite3": {
       "0.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern and low-level C++ SQLite API",
         "git": {
           "ref": "0.1.0",
@@ -365,7 +365,7 @@
         }
       },
       "0.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "A modern and low-level C++ SQLite API",
         "git": {
           "ref": "0.2.0",
@@ -373,7 +373,7 @@
         }
       },
       "0.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "A modern and low-level C++ SQLite API",
         "git": {
           "ref": "0.2.1",
@@ -381,7 +381,7 @@
         }
       },
       "0.2.2": {
-        "depends": {},
+        "depends": [],
         "description": "A modern and low-level C++ SQLite API",
         "git": {
           "ref": "0.2.2",
@@ -389,7 +389,7 @@
         }
       },
       "0.2.3": {
-        "depends": {},
+        "depends": [],
         "description": "A modern and low-level C++ SQLite API",
         "git": {
           "ref": "0.2.3",
@@ -399,7 +399,7 @@
     },
     "nlohmann-json": {
       "3.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.0.0",
@@ -407,7 +407,7 @@
         }
       },
       "3.0.1": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.0.1",
@@ -415,7 +415,7 @@
         }
       },
       "3.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.1.0",
@@ -423,7 +423,7 @@
         }
       },
       "3.1.1": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.1.1",
@@ -431,7 +431,7 @@
         }
       },
       "3.1.2": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.1.2",
@@ -439,7 +439,7 @@
         }
       },
       "3.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.2.0",
@@ -447,7 +447,7 @@
         }
       },
       "3.3.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.3.0",
@@ -455,7 +455,7 @@
         }
       },
       "3.4.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.4.0",
@@ -463,7 +463,7 @@
         }
       },
       "3.5.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.5.0",
@@ -471,7 +471,7 @@
         }
       },
       "3.6.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.6.0",
@@ -479,7 +479,7 @@
         }
       },
       "3.6.1": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.6.1",
@@ -487,7 +487,7 @@
         }
       },
       "3.7.0": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.7.0",
@@ -495,7 +495,7 @@
         }
       },
       "3.7.1": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.7.1",
@@ -503,7 +503,7 @@
         }
       },
       "3.7.2": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.7.2",
@@ -511,7 +511,7 @@
         }
       },
       "3.7.3": {
-        "depends": {},
+        "depends": [],
         "description": "JSON for Modern C++",
         "git": {
           "ref": "dds/3.7.3",
@@ -521,7 +521,7 @@
     },
     "pubgrub": {
       "0.1.2": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ implementation of the Pubgrub version solving algorithm",
         "git": {
           "ref": "0.1.2",
@@ -529,7 +529,7 @@
         }
       },
       "0.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ implementation of the Pubgrub version solving algorithm",
         "git": {
           "ref": "0.2.0",
@@ -537,7 +537,7 @@
         }
       },
       "0.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ implementation of the Pubgrub version solving algorithm",
         "git": {
           "ref": "0.2.1",
@@ -547,7 +547,7 @@
     },
     "range-v3": {
       "0.10.0": {
-        "depends": {},
+        "depends": [],
         "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
         "git": {
           "auto-lib": "range-v3/range-v3",
@@ -556,7 +556,7 @@
         }
       },
       "0.5.0": {
-        "depends": {},
+        "depends": [],
         "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
         "git": {
           "auto-lib": "range-v3/range-v3",
@@ -565,7 +565,7 @@
         }
       },
       "0.9.0": {
-        "depends": {},
+        "depends": [],
         "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
         "git": {
           "auto-lib": "range-v3/range-v3",
@@ -574,7 +574,7 @@
         }
       },
       "0.9.1": {
-        "depends": {},
+        "depends": [],
         "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
         "git": {
           "auto-lib": "range-v3/range-v3",
@@ -585,7 +585,7 @@
     },
     "semver": {
       "0.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ library that implements Semantic Versioning parsing, emitting, types, ordering, and operations. See https://semver.org/",
         "git": {
           "ref": "0.2.1",
@@ -593,7 +593,7 @@
         }
       },
       "0.2.2": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ library that implements Semantic Versioning parsing, emitting, types, ordering, and operations. See https://semver.org/",
         "git": {
           "ref": "0.2.2",
@@ -603,7 +603,7 @@
     },
     "spdlog": {
       "0.10.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -612,7 +612,7 @@
         }
       },
       "0.11.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -621,7 +621,7 @@
         }
       },
       "0.12.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -630,7 +630,7 @@
         }
       },
       "0.13.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -639,7 +639,7 @@
         }
       },
       "0.14.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -648,7 +648,7 @@
         }
       },
       "0.16.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -657,7 +657,7 @@
         }
       },
       "0.16.1": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -666,7 +666,7 @@
         }
       },
       "0.16.2": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -675,7 +675,7 @@
         }
       },
       "0.17.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -684,7 +684,7 @@
         }
       },
       "0.9.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -693,7 +693,7 @@
         }
       },
       "1.0.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -702,7 +702,7 @@
         }
       },
       "1.1.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -711,7 +711,7 @@
         }
       },
       "1.2.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -720,7 +720,7 @@
         }
       },
       "1.2.1": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -729,7 +729,7 @@
         }
       },
       "1.3.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -738,7 +738,7 @@
         }
       },
       "1.3.1": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -747,7 +747,7 @@
         }
       },
       "1.4.0": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -756,7 +756,7 @@
         }
       },
       "1.4.1": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -765,7 +765,7 @@
         }
       },
       "1.4.2": {
-        "depends": {},
+        "depends": [],
         "description": "Fast C++ logging library",
         "git": {
           "auto-lib": "spdlog/spdlog",
@@ -776,7 +776,7 @@
     },
     "vob-json5": {
       "0.1.5": {
-        "depends": {},
+        "depends": [],
         "description": "A C++ implementation of a JSON5 parser",
         "git": {
           "ref": "0.1.5",
@@ -786,10 +786,10 @@
     },
     "vob-semester": {
       "0.1.0": {
-        "depends": {
-          "neo-concepts": "^0.2.1",
-          "neo-fun": "^0.1.0"
-        },
+        "depends": [
+          "neo-fun^0.1.0",
+          "neo-concepts^0.2.1"
+        ],
         "description": "A C++ library to process recursive dynamic data",
         "git": {
           "ref": "0.1.0",
@@ -797,10 +797,10 @@
         }
       },
       "0.1.1": {
-        "depends": {
-          "neo-concepts": "^0.2.2",
-          "neo-fun": "^0.1.1"
-        },
+        "depends": [
+          "neo-fun^0.1.1",
+          "neo-concepts^0.2.2"
+        ],
         "description": "A C++ library to process recursive dynamic data",
         "git": {
           "ref": "0.1.1",
@@ -808,10 +808,10 @@
         }
       },
       "0.2.0": {
-        "depends": {
-          "neo-concepts": "^0.3.2",
-          "neo-fun": "^0.3.2"
-        },
+        "depends": [
+          "neo-fun^0.3.2",
+          "neo-concepts^0.3.2"
+        ],
         "description": "A C++ library to process recursive dynamic data",
         "git": {
           "ref": "0.2.0",
@@ -819,10 +819,10 @@
         }
       },
       "0.2.1": {
-        "depends": {
-          "neo-concepts": "^0.3.2",
-          "neo-fun": "^0.3.2"
-        },
+        "depends": [
+          "neo-fun^0.3.2",
+          "neo-concepts^0.3.2"
+        ],
         "description": "A C++ library to process recursive dynamic data",
         "git": {
           "ref": "0.2.1",

catalog.old.json

@@ -0,0 +1,835 @@
+{
+  "packages": {
+    "ctre": {
+      "2.7.0": {
+        "depends": {},
+        "description": "A compile-time PCRE (almost) compatible regular expression matcher",
+        "git": {
+          "auto-lib": "hanickadot/ctre",
+          "ref": "v2.7",
+          "url": "https://github.com/hanickadot/compile-time-regular-expressions.git"
+        }
+      }
+    },
+    "fmt": {
+      "0.10.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "0.10.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "0.12.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "0.12.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "0.8.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "0.8.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "0.9.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "0.9.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "1.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "1.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "1.1.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "1.1.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "2.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "2.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "2.0.1": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "2.0.1",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "2.1.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "2.1.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "2.1.1": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "2.1.1",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "3.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "3.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "3.0.1": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "3.0.1",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "3.0.2": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "3.0.2",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "4.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "4.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "4.1.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "4.1.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "5.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "5.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "5.1.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "5.1.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "5.2.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "5.2.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "5.2.1": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "5.2.1",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "5.3.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "5.3.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "6.0.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "6.0.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "6.1.0": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "6.1.0",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "6.1.1": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "6.1.1",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      },
+      "6.1.2": {
+        "depends": {},
+        "description": "A modern formatting library : https://fmt.dev/",
+        "git": {
+          "auto-lib": "fmt/fmt",
+          "ref": "6.1.2",
+          "url": "https://github.com/fmtlib/fmt.git"
+        }
+      }
+    },
+    "ms-wil": {
+      "2020.03.16": {
+        "depends": {},
+        "description": "The Windows Implementation Library",
+        "git": {
+          "ref": "dds/2020.03.16",
+          "url": "https://github.com/vector-of-bool/wil.git"
+        }
+      }
+    },
+    "neo-concepts": {
+      "0.1.0": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.1.0",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.2.0": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.2.0",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.2.1": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.2.2": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.2.2",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.3.0": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.3.0",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.3.1": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.3.1",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      },
+      "0.3.2": {
+        "depends": {},
+        "description": "Minimal C++ concepts library. Contains many definitions from C++20.",
+        "git": {
+          "ref": "0.3.2",
+          "url": "https://github.com/vector-of-bool/neo-concepts.git"
+        }
+      }
+    },
+    "neo-fun": {
+      "0.1.0": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.1.0",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.1.1": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.1.1",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.2.0": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.2.0",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.2.1": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.3.0": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.3.0",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.3.1": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.3.1",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      },
+      "0.3.2": {
+        "depends": {},
+        "description": "Some library fundamentals that you might find useful",
+        "git": {
+          "ref": "0.3.2",
+          "url": "https://github.com/vector-of-bool/neo-fun.git"
+        }
+      }
+    },
+    "neo-sqlite3": {
+      "0.1.0": {
+        "depends": {},
+        "description": "A modern and low-level C++ SQLite API",
+        "git": {
+          "ref": "0.1.0",
+          "url": "https://github.com/vector-of-bool/neo-sqlite3.git"
+        }
+      },
+      "0.2.0": {
+        "depends": {},
+        "description": "A modern and low-level C++ SQLite API",
+        "git": {
+          "ref": "0.2.0",
+          "url": "https://github.com/vector-of-bool/neo-sqlite3.git"
+        }
+      },
+      "0.2.1": {
+        "depends": {},
+        "description": "A modern and low-level C++ SQLite API",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/neo-sqlite3.git"
+        }
+      },
+      "0.2.2": {
+        "depends": {},
+        "description": "A modern and low-level C++ SQLite API",
+        "git": {
+          "ref": "0.2.2",
+          "url": "https://github.com/vector-of-bool/neo-sqlite3.git"
+        }
+      },
+      "0.2.3": {
+        "depends": {},
+        "description": "A modern and low-level C++ SQLite API",
+        "git": {
+          "ref": "0.2.3",
+          "url": "https://github.com/vector-of-bool/neo-sqlite3.git"
+        }
+      }
+    },
+    "nlohmann-json": {
+      "3.0.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.0.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.0.1": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.0.1",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.1.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.1.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.1.1": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.1.1",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.1.2": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.1.2",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.2.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.2.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.3.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.3.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.4.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.4.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.5.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.5.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.6.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.6.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.6.1": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.6.1",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.7.0": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.7.0",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.7.1": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.7.1",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.7.2": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.7.2",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      },
+      "3.7.3": {
+        "depends": {},
+        "description": "JSON for Modern C++",
+        "git": {
+          "ref": "dds/3.7.3",
+          "url": "https://github.com/vector-of-bool/json.git"
+        }
+      }
+    },
+    "pubgrub": {
+      "0.1.2": {
+        "depends": {},
+        "description": "A C++ implementation of the Pubgrub version solving algorithm",
+        "git": {
+          "ref": "0.1.2",
+          "url": "https://github.com/vector-of-bool/pubgrub.git"
+        }
+      },
+      "0.2.0": {
+        "depends": {},
+        "description": "A C++ implementation of the Pubgrub version solving algorithm",
+        "git": {
+          "ref": "0.2.0",
+          "url": "https://github.com/vector-of-bool/pubgrub.git"
+        }
+      },
+      "0.2.1": {
+        "depends": {},
+        "description": "A C++ implementation of the Pubgrub version solving algorithm",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/pubgrub.git"
+        }
+      }
+    },
+    "range-v3": {
+      "0.10.0": {
+        "depends": {},
+        "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
+        "git": {
+          "auto-lib": "range-v3/range-v3",
+          "ref": "0.10.0",
+          "url": "https://github.com/ericniebler/range-v3.git"
+        }
+      },
+      "0.5.0": {
+        "depends": {},
+        "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
+        "git": {
+          "auto-lib": "range-v3/range-v3",
+          "ref": "0.5.0",
+          "url": "https://github.com/ericniebler/range-v3.git"
+        }
+      },
+      "0.9.0": {
+        "depends": {},
+        "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
+        "git": {
+          "auto-lib": "range-v3/range-v3",
+          "ref": "0.9.0",
+          "url": "https://github.com/ericniebler/range-v3.git"
+        }
+      },
+      "0.9.1": {
+        "depends": {},
+        "description": "Range library for C++14/17/20, basis for C++20's std::ranges",
+        "git": {
+          "auto-lib": "range-v3/range-v3",
+          "ref": "0.9.1",
+          "url": "https://github.com/ericniebler/range-v3.git"
+        }
+      }
+    },
+    "semver": {
+      "0.2.1": {
+        "depends": {},
+        "description": "A C++ library that implements Semantic Versioning parsing, emitting, types, ordering, and operations. See https://semver.org/",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/semver.git"
+        }
+      },
+      "0.2.2": {
+        "depends": {},
+        "description": "A C++ library that implements Semantic Versioning parsing, emitting, types, ordering, and operations. See https://semver.org/",
+        "git": {
+          "ref": "0.2.2",
+          "url": "https://github.com/vector-of-bool/semver.git"
+        }
+      }
+    },
+    "spdlog": {
+      "0.10.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.10.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.11.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.11.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.12.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.12.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.13.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.13.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.14.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.14.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.16.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.16.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.16.1": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.16.1",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.16.2": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.16.2",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.17.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.17.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "0.9.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v0.9.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.0.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.0.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.1.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.1.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.2.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.2.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.2.1": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.2.1",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.3.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.3.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.3.1": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.3.1",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.4.0": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.4.0",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.4.1": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.4.1",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      },
+      "1.4.2": {
+        "depends": {},
+        "description": "Fast C++ logging library",
+        "git": {
+          "auto-lib": "spdlog/spdlog",
+          "ref": "v1.4.2",
+          "url": "https://github.com/gabime/spdlog.git"
+        }
+      }
+    },
+    "vob-json5": {
+      "0.1.5": {
+        "depends": {},
+        "description": "A C++ implementation of a JSON5 parser",
+        "git": {
+          "ref": "0.1.5",
+          "url": "https://github.com/vector-of-bool/json5.git"
+        }
+      }
+    },
+    "vob-semester": {
+      "0.1.0": {
+        "depends": {
+          "neo-concepts": "^0.2.1",
+          "neo-fun": "^0.1.0"
+        },
+        "description": "A C++ library to process recursive dynamic data",
+        "git": {
+          "ref": "0.1.0",
+          "url": "https://github.com/vector-of-bool/semester.git"
+        }
+      },
+      "0.1.1": {
+        "depends": {
+          "neo-concepts": "^0.2.2",
+          "neo-fun": "^0.1.1"
+        },
+        "description": "A C++ library to process recursive dynamic data",
+        "git": {
+          "ref": "0.1.1",
+          "url": "https://github.com/vector-of-bool/semester.git"
+        }
+      },
+      "0.2.0": {
+        "depends": {
+          "neo-concepts": "^0.3.2",
+          "neo-fun": "^0.3.2"
+        },
+        "description": "A C++ library to process recursive dynamic data",
+        "git": {
+          "ref": "0.2.0",
+          "url": "https://github.com/vector-of-bool/semester.git"
+        }
+      },
+      "0.2.1": {
+        "depends": {
+          "neo-concepts": "^0.3.2",
+          "neo-fun": "^0.3.2"
+        },
+        "description": "A C++ library to process recursive dynamic data",
+        "git": {
+          "ref": "0.2.1",
+          "url": "https://github.com/vector-of-bool/semester.git"
+        }
+      }
+    }
+  },
+  "version": 1
+}

src/dds/package/manifest.cpp

@@ -7,107 +7,108 @@
 #include <range/v3/view/split.hpp>
 #include <range/v3/view/split_when.hpp>
 #include <range/v3/view/transform.hpp>
-#include <semester/decomp.hpp>
+#include <semester/walk.hpp>
 #include <spdlog/spdlog.h>
 
 #include <json5/parse_data.hpp>
 
 using namespace dds;
 
-package_manifest package_manifest::load_from_file(const fs::path& fpath) {
-    auto content = slurp_file(fpath);
-    auto data    = json5::parse_data(content);
+namespace {
 
-    if (!data.is_object()) {
-        throw_user_error<errc::invalid_pkg_manifest>("Root value must be an object");
-    }
+using require_obj   = semester::require_type<json5::data::mapping_type>;
+using require_array = semester::require_type<json5::data::array_type>;
+using require_str   = semester::require_type<std::string>;
 
+package_manifest parse_json(const json5::data& data, std::string_view fpath) {
     package_manifest ret;
-    using namespace semester::decompose_ops;
-    auto res = semester::decompose(  //
-        data,
-        try_seq{
-            require_type<json5::data::mapping_type>{
-                "The root of a package manifest must be an object (mapping)"},
-            mapping{
-                if_key{"$schema", just_accept},
-                if_key{
-                    "name",
-                    require_type<std::string>{"`name` must be a string"},
-                    put_into{ret.pkg_id.name},
-                },
-                if_key{
-                    "namespace",
-                    require_type<std::string>{"`namespace` must be a string"},
-                    put_into{ret.namespace_},
-                },
-                if_key{
-                    "version",
-                    require_type<std::string>{"`version` must be a string"},
-                    [&](auto&& version_str_) {
-                        auto& version      = version_str_.as_string();
-                        ret.pkg_id.version = semver::version::parse(version);
-                        return semester::dc_accept;
-                    },
-                },
-                if_key{
-                    "depends",
-                    require_type<json5::data::mapping_type>{
-                        "`depends` must be a mapping between package names and version ranges"},
-                    mapping{[&](auto pkg_name, auto&& range_str_) {
-                        if (!range_str_.is_string()) {
-                            throw_user_error<errc::invalid_pkg_manifest>(
-                                "Dependency for '{}' must be a range string", pkg_name);
-                        }
-                        try {
-                            auto rng = semver::range::parse_restricted(range_str_.as_string());
-                            dependency dep{std::string(pkg_name), {rng.low(), rng.high()}};
-                            ret.dependencies.push_back(std::move(dep));
-                        } catch (const semver::invalid_range&) {
-                            throw_user_error<errc::invalid_version_range_string>(
-                                "Invalid version range string '{}' in dependency declaration for "
-                                "'{}'",
-                                range_str_.as_string(),
-                                pkg_name);
+
+    using namespace semester::walk_ops;
+    auto push_depends_obj_kv = [&](std::string key, auto&& dat) {
+        dependency pending_dep;
+        if (!dat.is_string()) {
+            return walk.reject("Dependency object values should be strings");
+        }
+        try {
+            auto       rng = semver::range::parse_restricted(dat.as_string());
+            dependency dep{std::move(key), {rng.low(), rng.high()}};
+            ret.dependencies.push_back(std::move(dep));
+        } catch (const semver::invalid_range&) {
+            throw_user_error<errc::invalid_version_range_string>(
+                "Invalid version range string '{}' in dependency declaration for "
+                "'{}'",
+                dat.as_string(),
+                key);
+        }
+        return walk.accept;
+    };
+
+    walk(data,
+         require_obj{"Root of package manifest should be a JSON object"},
+         mapping{
+             if_key{"$schema", just_accept},
+             required_key{"name",
+                          "A string 'name' is required",
+                          require_str{"'name' must be a string"},
+                          put_into{ret.pkg_id.name}},
+             required_key{"namespace",
+                          "A string 'namespace' is a required ",
+                          require_str{"'namespace' must be a string"},
+                          put_into{ret.namespace_}},
+             required_key{"version",
+                          "A 'version' string is requried",
+                          require_str{"'version' must be a string"},
+                          put_into{ret.pkg_id.version,
+                                   [](std::string s) { return semver::version::parse(s); }}},
+             if_key{"depends",
+                    [&](auto&& dat) {
+                        if (dat.is_object()) {
+                            spdlog::warn(
+                                "{}: Using a JSON object for 'depends' is deprecated. Use an"
+                                "array of strings instead.",
+                                fpath);
+                            return mapping{push_depends_obj_kv}(dat);
+                        } else if (dat.is_array()) {
+                            return for_each{put_into{std::back_inserter(ret.dependencies),
+                                                     [](const std::string& depstr) {
+                                                         return dependency::parse_depends_string(
+                                                             depstr);
+                                                     }}}(dat);
+                        } else {
+                            return walk.reject(
+                                "'depends' should be an array of dependency strings");
                         }
-                        return semester::dc_accept;
                     }},
-                },
-                if_key{"test_driver",
-                       require_type<std::string>{"`test_driver` must be a string"},
-                       [&](auto&& test_driver_str_) {
-                           auto& test_driver = test_driver_str_.as_string();
-                           if (test_driver == "Catch-Main") {
-                               ret.test_driver = test_lib::catch_main;
-                           } else if (test_driver == "Catch") {
-                               ret.test_driver = test_lib::catch_;
-                           } else {
-                               auto dym = *did_you_mean(test_driver, {"Catch-Main", "Catch"});
-                               throw_user_error<errc::unknown_test_driver>(
-                                   "Unknown 'test_driver' '{}' (Did you mean '{}'?)",
-                                   test_driver,
-                                   dym);
-                           }
-                           return semester::dc_accept;
-                       }},
-                [&](auto key, auto&&) {
-                    return semester::dc_reject_t{
-                        fmt::format("Unknown key `{}` in package manifest", key)};
-                }}});
-    auto rej = std::get_if<semester::dc_reject_t>(&res);
-    if (rej) {
-        throw_user_error<errc::invalid_pkg_manifest>(rej->message);
-    }
+             if_key{"test_driver",
+                    require_str{"'test_driver' must be a string"},
+                    put_into{ret.test_driver,
+                             [](std::string const& td_str) {
+                                 if (td_str == "Catch-Main") {
+                                     return test_lib::catch_main;
+                                 } else if (td_str == "Catch") {
+                                     return test_lib::catch_;
+                                 } else {
+                                     auto dym = *did_you_mean(td_str, {"Catch-Main", "Catch"});
+                                     throw_user_error<errc::unknown_test_driver>(
+                                         "Unknown 'test_driver' '{}' (Did you mean '{}'?)",
+                                         td_str,
+                                         dym);
+                                 }
+                             }}},
+         });
+    return ret;
+}
 
-    if (ret.pkg_id.name.empty()) {
-        throw_user_error<errc::invalid_pkg_manifest>("The 'name' field is required.");
-    }
+}  // namespace
 
-    if (ret.namespace_.empty()) {
-        throw_user_error<errc::invalid_pkg_manifest>("The 'namespace'` field is required.");
+package_manifest package_manifest::load_from_file(const fs::path& fpath) {
+    auto content = slurp_file(fpath);
+    auto data    = json5::parse_data(content);
+    try {
+        return parse_json(data, fpath.string());
+    } catch (const semester::walk_error& e) {
+        throw_user_error<errc::invalid_pkg_manifest>(e.what());
     }
-
-    return ret;
 }
 
 std::optional<fs::path> package_manifest::find_in_directory(path_ref dirpath) {
@@ -132,4 +133,4 @@ std::optional<package_manifest> package_manifest::load_from_directory(path_ref d
         return std::nullopt;
     }
     return load_from_file(*found);
-}
+}

tests/deps/git-remote/package.json5

@@ -2,8 +2,8 @@
     name: 'deps-test',
     "namespace": "test",
     version: '0.0.0',
-    depends: {
-        'neo-fun': '0.3.2',
-        'range-v3': '0.9.1',
-    }
+    depends: [
+        'neo-fun@0.3.2',
+        'range-v3@0.9.1',
+    ]
 }

tests/deps/use-catch2/project/package.json5

@@ -2,7 +2,7 @@
     name: 'use-catch2',
     version: '1.0.0',
     namespace: 'test',
-    depends: {
-        'catch2': '2.12.4'
-    }
+    depends: [
+        'catch2@2.12.4'
+    ]
 }

tests/deps/use-cryptopp/project/package.json5

@@ -2,7 +2,7 @@
     name: 'use-cryptopp',
     version: '1.0.0',
     namespace: 'test',
-    depends: {
-        'cryptopp': '8.2.0'
-    }
+    depends: [
+        'cryptopp@8.2.0'
+    ]
 }

tests/deps/use-libsodium/project/package.json5

@@ -2,7 +2,7 @@
     name: 'use-libsodium',
     version: '1.0.0',
     namespace: 'test',
-    depends: {
-        'libsodium': '1.0.18'
-    }
+    depends: [
+        'libsodium@1.0.18'
+    ]
 }

tests/deps/use-remote/package.json5

@@ -2,7 +2,7 @@
     "name": "json-test",
     "version": "0.0.0",
     "namespace": "test",
-    "depends": {
-        "nlohmann-json": "3.7.1"
-    }
+    "depends": [
+        "nlohmann-json@3.7.1"
+    ]
 }

tests/deps/use-spdlog/project/package.json5

@@ -2,7 +2,7 @@
     name: 'test',
     version: '0.0.0',
     "namespace": "test",
-    depends: {
-        'spdlog': '1.4.2',
-    },
+    depends: [
+        'spdlog@1.4.2',
+    ],
 }

tools/ci.py

@@ -4,6 +4,7 @@ import sys
 import pytest
 from pathlib import Path
 from typing import Sequence, NamedTuple
+import multiprocessing
 import subprocess
 import urllib.request
 import shutil
@@ -91,21 +92,16 @@ def main(argv: Sequence[str]) -> int:
     if old_cat_path.is_file():
         old_cat_path.unlink()
 
-    ci_repo_dir = paths.PREBUILT_DIR / '_ci-repo'
+    ci_repo_dir = paths.PREBUILT_DIR / 'ci-repo'
     if ci_repo_dir.exists():
         shutil.rmtree(ci_repo_dir)
 
-    proc.check_run([
+    self_build(
         paths.PREBUILT_DDS,
-        'catalog',
-        'import',
-        ('--catalog', old_cat_path),
-        ('--json', paths.PROJECT_ROOT / 'catalog.json'),
-    ])
-    self_build(paths.PREBUILT_DDS,
-               toolchain=opts.toolchain,
-               cat_path=old_cat_path,
-               dds_flags=[('--repo-dir', ci_repo_dir)])
+        toolchain=opts.toolchain,
+        cat_path=old_cat_path,
+        cat_json_path=Path('catalog.old.json'),
+        dds_flags=[('--repo-dir', ci_repo_dir)])
     print('Main build PASSED!')
     print(f'A `dds` executable has been generated: {paths.CUR_BUILT_DDS}')
 
@@ -115,25 +111,21 @@ def main(argv: Sequence[str]) -> int:
         )
         return 0
 
+    print('Bootstrapping myself:')
     new_cat_path = paths.BUILD_DIR / 'catalog.db'
-    proc.check_run([
+    self_build(
         paths.CUR_BUILT_DDS,
-        'catalog',
-        'import',
-        ('--catalog', new_cat_path),
-        ('--json', paths.PROJECT_ROOT / 'catalog.json'),
-    ])
-    self_build(paths.CUR_BUILT_DDS,
-               toolchain=opts.toolchain,
-               cat_path=new_cat_path,
-               dds_flags=[f'--repo-dir={ci_repo_dir}'])
+        toolchain=opts.toolchain,
+        cat_path=new_cat_path,
+        dds_flags=[f'--repo-dir={ci_repo_dir}'])
     print('Bootstrap test PASSED!')
 
     return pytest.main([
         '-v',
         '--durations=10',
         f'--basetemp={paths.BUILD_DIR / "_tmp"}',
-        '-n4',
+        '-n',
+        str(multiprocessing.cpu_count() + 2),
         'tests/',
     ])
 

tools/gen-catalog-json.py

@@ -1,3 +1,4 @@
+import argparse
 import json
 from typing import NamedTuple, Tuple, List, Sequence, Union, Optional, Mapping
 import sys
@@ -28,11 +29,14 @@ class Version(NamedTuple):
     depends: Mapping[str, str] = {}
     description: str = '(No description provided)'
 
-    def to_dict(self) -> dict:
+    def to_dict(self, new=False) -> dict:
         ret: dict = {
             'description': self.description,
         }
-        ret['depends'] = self.depends
+        if new:
+            ret['depends'] = [k + v for k, v in self.depends.items()]
+        else:
+            ret['depends'] = self.depends
         if isinstance(self.remote, Git):
             ret['git'] = self.remote.to_dict()
         return ret
@@ -60,7 +64,7 @@ def many_versions(name: str,
     ])
 
 
-packages = [
+PACKAGES = [
     many_versions(
         'range-v3',
         (
@@ -289,13 +293,19 @@ packages = [
     ),
 ]
 
-data = {
-    'version': 1,
-    'packages': {
-        pkg.name: {ver.version: ver.to_dict()
-                   for ver in pkg.versions}
-        for pkg in packages
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--new', action='store_true')
+    args = parser.parse_args()
+
+    data = {
+        'version': 1,
+        'packages': {
+            pkg.name:
+            {ver.version: ver.to_dict(new=args.new)
+             for ver in pkg.versions}
+            for pkg in PACKAGES
+        }
     }
-}
 
-print(json.dumps(data, indent=2, sort_keys=True))
+    print(json.dumps(data, indent=2, sort_keys=True))

tools/self_build.py

@@ -16,6 +16,7 @@ def self_build(exe: Path,
                toolchain: str,
                lmi_path: Path = None,
                cat_path: Path = Path('_build/catalog.db'),
+               cat_json_path: Path = Path('catalog.json'),
                dds_flags: proc.CommandLine = ()):
     # Copy the exe to another location, as windows refuses to let a binary be
     # replaced while it is executing
@@ -27,7 +28,7 @@ def self_build(exe: Path,
             'catalog',
             'import',
             f'--catalog={cat_path}',
-            f'--json=catalog.json',
+            f'--json={cat_json_path}',
         )
         proc.check_run(
             new_exe,