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generateJson.js
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247 lines (200 loc) · 6.98 KB
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const path = require("path");
const utils = require("./utils");
var _;
var libgit2 = require("../input/libgit2-docs.json");
var descriptor = require("../input/descriptor.json");
var supplement = require("../input/libgit2-supplement.json");
module.exports = function generateJson() {
var helpers = require("./helpers");
_ = require("lodash");
// libgit2's docs aren't complete so we'll add in what they're missing here
libgit2.types.forEach(function(type) {
if (supplement.types[type[0]]) {
_.merge(type[1], supplement.types[type[0]]);
}
});
libgit2.groups.forEach(function(group) {
if (supplement.groups[group[0]]) {
Array.prototype.push.apply(group[1], supplement.groups[group[0]]);
}
});
Array.prototype.push.apply(libgit2.types, supplement.new.types);
Array.prototype.push.apply(libgit2.groups, supplement.new.groups);
_.merge(libgit2.functions, supplement.new.functions);
var output = [];
var dependencyLookup = {};
var types = [];
var enums = [];
// reduce all of the groups into a hashmap and a name array for easy lookup
var groups = libgit2.groups.reduce(function(memo, group) {
var groupName = group[0];
// Some functions are in the wrong group so we can't just ignore them.
// We have to completely remove them from one group and manually add them
// into the other.
var functionNames = group[1].filter(function(fnName) {
return !supplement.remove[groupName] ||
!supplement.remove[groupName].functions ||
!~supplement.remove[groupName].functions.indexOf(fnName);
});
// If we've already found some functions for this group lets add the new
// ones we found instead of overwriting the old ones
if (memo[groupName]) {
memo[groupName] = memo[groupName].concat(functionNames);
}
// if we have an empty group then just ignore it
else if (functionNames.length) {
memo[groupName] = functionNames;
}
return memo;
}, {});
// Split each type from the array into classes/structs and enums
// each entry is of type ['name', {definingobject}]
libgit2.types.forEach(function(current) {
current[1].typeName = current[0];
// just log these out to a file for fun
if (current[1].type === "enum") {
enums.push(current[1]);
}
else {
types.push(current[1]);
}
});
var previous = "";
enums = _(enums).sortBy("name").reduce(function(enumMemo, enumerable) {
if (previous == enumerable.typeName) {
if (process.env.BUILD_ONLY) {
console.warn('Duplicate definition for enum ' + enumerable.typeName +
". skipped.");
}
}
else if (!enumerable.fields) {
if (process.env.BUILD_ONLY) {
console.warn('Incomplete definition for enum ' + enumerable.typeName +
". skipped.");
}
}
else {
enumMemo[enumerable.typeName] = {
typeName: enumerable.typeName.replace(/^git_/, "").replace(/_t$/, ""),
type: "enum",
cType: enumerable.typeName,
isMask: (/_t$/).test(enumerable.typeName),
values: enumerable.fields.map(function(field) {
return {
name: field.name,
value: field.value
}
})
};
}
previous = enumerable.typeName;
return enumMemo;
}, {}).valueOf();
// decorate the definitions with required data to build the C++ files
types.forEach(function(typeDef) {
var typeName = typeDef.typeName;
typeDef.cType = typeName;
typeName = typeName.replace("git_", "");
typeDef.typeName = typeName;
dependencyLookup[typeName] = typeName;
typeDef.functions = groups[typeName] || [];
helpers.decoratePrimaryType(typeDef, enums);
groups[typeName] = false;
typeDef.type = typeDef.hasConstructor ? "struct" : "class";
output.push(typeDef);
});
// Loop over the groups in case we missed anything (eg the types are missing in the docs);
for (var groupName in groups) {
var groupDef = groups[groupName];
if (groupDef === false) {
continue;
}
groupDef = {
functions: groupDef
};
groupDef.type = "class";
groupDef.cType = (descriptor.types[groupName] || {}).cType || groupDef.cType;
groupDef.typeName = groupName;
dependencyLookup[groupName] = groupName;
helpers.decoratePrimaryType(groupDef, enums);
output.push(groupDef);
}
// Calculate dependencies
output.forEach(function (def) {
if (def.ignore) {
return;
}
var dependencies = {};
var addDependencies = function (prop) {
if (prop.ignore) {
return;
}
var type = helpers.normalizeCtype(prop.type || prop.cType).replace("git_", "");
var dependencyFilename = dependencyLookup[type];
if (dependencyFilename && dependencyFilename !== def.filename) {
dependencies[dependencyFilename] = dependencyFilename;
}
(prop.args || []).forEach(addDependencies);
if (prop.return) {
addDependencies(prop.return);
}
};
var addSelfReferentialField = function(prop){
if (helpers.isSelfReferential(prop.type)) {
prop.isSelfReferential = true;
def.isExtendedStruct = true;
}
};
def.fields.forEach(addDependencies);
def.fields.forEach(addSelfReferentialField);
def.functions.forEach(addDependencies);
Object.keys(dependencies).forEach(function (dependencyFilename) {
def.dependencies.push("../include/" + dependencyFilename + ".h");
});
// Additionally provide a friendly name to the actual filename.
def.name = path.basename(def.filename, ".h");
def.functions.forEach(function(fn) {
fn.cppClassName = def.cppClassName;
});
});
// Process enums
_(enums).forEach(function(enumerable) {
output.some(function(obj) {
if (enumerable.typeName.indexOf(obj.typeName) == 0) {
enumerable.owner = obj.jsClassName;
}
else if (enumerable.owner) {
return true;
}
});
var override = descriptor.enums[enumerable.typeName] || {};
enumerable.owner = override.owner || enumerable.owner || "Enums";
enumerable.JsName = enumerable.typeName
.replace(new RegExp("^" + enumerable.owner.toLowerCase()), "")
.replace(/^_/, "")
.toUpperCase();
enumerable.values.forEach(function(value) {
value.JsName = value.name
.replace(/^GIT_/, "")
.replace(override.removeString || "", "")
.replace(new RegExp("^" + enumerable.owner.toUpperCase()), "")
.replace(/^_/, "")
.replace(new RegExp("^" + enumerable.JsName), "")
.replace(/^_/, "")
.toUpperCase();
if (override.values && override.values[value.name]) {
_.merge(value, override.values[value.name]);
}
});
_.merge(enumerable, _.omit(override, ["values"]));
output.push(enumerable);
});
output = _.sortBy(output, "typeName");
if (process.argv[2] != "--documentation") {
helpers.filterDocumentation(output);
}
utils.writeLocalFile("output/idefs.json", output);
};
if (require.main === module) {
module.exports();
}