summaryrefslogtreecommitdiff
path: root/src/SMAPI.ModBuildConfig/Framework/ModFileManager.cs
blob: 41e0201da76b7d218f59390e05ec6f2ccff4e3ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web.Script.Serialization;
using StardewModdingAPI.Toolkit;

namespace StardewModdingAPI.ModBuildConfig.Framework
{
    /// <summary>Manages the files that are part of a mod package.</summary>
    internal class ModFileManager
    {
        /*********
        ** Properties
        *********/
        /// <summary>The name of the manifest file.</summary>
        private readonly string ManifestFileName = "manifest.json";

        /// <summary>The files that are part of the package.</summary>
        private readonly IDictionary<string, FileInfo> Files;


        /*********
        ** Public methods
        *********/
        /// <summary>Construct an instance.</summary>
        /// <param name="projectDir">The folder containing the project files.</param>
        /// <param name="targetDir">The folder containing the build output.</param>
        /// <exception cref="UserErrorException">The mod package isn't valid.</exception>
        public ModFileManager(string projectDir, string targetDir)
        {
            this.Files = new Dictionary<string, FileInfo>(StringComparer.InvariantCultureIgnoreCase);

            // validate paths
            if (!Directory.Exists(projectDir))
                throw new UserErrorException("Could not create mod package because the project folder wasn't found.");
            if (!Directory.Exists(targetDir))
                throw new UserErrorException("Could not create mod package because no build output was found.");

            // project manifest
            bool hasProjectManifest = false;
            {
                FileInfo manifest = new FileInfo(Path.Combine(projectDir, "manifest.json"));
                if (manifest.Exists)
                {
                    this.Files[this.ManifestFileName] = manifest;
                    hasProjectManifest = true;
                }
            }

            // project i18n files
            bool hasProjectTranslations = false;
            DirectoryInfo translationsFolder = new DirectoryInfo(Path.Combine(projectDir, "i18n"));
            if (translationsFolder.Exists)
            {
                foreach (FileInfo file in translationsFolder.EnumerateFiles())
                    this.Files[Path.Combine("i18n", file.Name)] = file;
                hasProjectTranslations = true;
            }

            // build output
            DirectoryInfo buildFolder = new DirectoryInfo(targetDir);
            foreach (FileInfo file in buildFolder.EnumerateFiles("*", SearchOption.AllDirectories))
            {
                // get relative paths
                string relativePath = file.FullName.Replace(buildFolder.FullName, "");
                string relativeDirPath = file.Directory.FullName.Replace(buildFolder.FullName, "");

                // prefer project manifest/i18n files
                if (hasProjectManifest && this.EqualsInvariant(relativePath, this.ManifestFileName))
                    continue;
                if (hasProjectTranslations && this.EqualsInvariant(relativeDirPath, "i18n"))
                    continue;

                // ignore release zips
                if (this.ShouldIgnore(file))
                    continue;

                // add file
                this.Files[relativePath] = file;
            }

            // check for missing manifest
            if (!this.Files.ContainsKey(this.ManifestFileName))
                throw new UserErrorException($"Could not create mod package because no {this.ManifestFileName} was found in the project or build output.");

            // check for missing DLL
            // ReSharper disable once SimplifyLinqExpression
            if (!this.Files.Any(p => !p.Key.EndsWith(".dll")))
                throw new UserErrorException("Could not create mod package because no .dll file was found in the project or build output.");
        }

        /// <summary>Get the files in the mod package.</summary>
        public IDictionary<string, FileInfo> GetFiles()
        {
            return new Dictionary<string, FileInfo>(this.Files, StringComparer.InvariantCultureIgnoreCase);
        }

        /// <summary>Get a semantic version from the mod manifest.</summary>
        /// <exception cref="UserErrorException">The manifest is missing or invalid.</exception>
        public string GetManifestVersion()
        {
            // get manifest file
            if (!this.Files.TryGetValue(this.ManifestFileName, out FileInfo manifestFile))
                throw new InvalidOperationException($"The mod does not have a {this.ManifestFileName} file."); // shouldn't happen since we validate in constructor

            // read content
            string json = File.ReadAllText(manifestFile.FullName);
            if (string.IsNullOrWhiteSpace(json))
                throw new UserErrorException("The mod's manifest must not be empty.");

            // parse JSON
            IDictionary<string, object> data;
            try
            {
                data = this.Parse(json);
            }
            catch (Exception ex)
            {
                throw new UserErrorException($"The mod's manifest couldn't be parsed. It doesn't seem to be valid JSON.\n{ex}");
            }

            // get version field
            object versionObj = data.ContainsKey("Version") ? data["Version"] : null;
            if (versionObj == null)
                throw new UserErrorException("The mod's manifest must have a version field.");

            // get version string
            if (versionObj is IDictionary<string, object> versionFields) // SMAPI 1.x
            {
                int major = versionFields.ContainsKey("MajorVersion") ? (int)versionFields["MajorVersion"] : 0;
                int minor = versionFields.ContainsKey("MinorVersion") ? (int)versionFields["MinorVersion"] : 0;
                int patch = versionFields.ContainsKey("PatchVersion") ? (int)versionFields["PatchVersion"] : 0;
                string tag = versionFields.ContainsKey("Build") ? (string)versionFields["Build"] : null;
                return new SemanticVersion(major, minor, patch, tag).ToString();
            }
            return new SemanticVersion(versionObj.ToString()).ToString(); // SMAPI 2.0+
        }


        /*********
        ** Private methods
        *********/
        /// <summary>Get whether a build output file should be ignored.</summary>
        /// <param name="file">The file info.</param>
        private bool ShouldIgnore(FileInfo file)
        {
            return
                // release zips
                this.EqualsInvariant(file.Extension, ".zip")

                // Json.NET (bundled into SMAPI)
                || this.EqualsInvariant(file.Name, "Newtonsoft.Json.dll")
                || this.EqualsInvariant(file.Name, "Newtonsoft.Json.xml")

                // code analysis files
                || file.Name.EndsWith(".CodeAnalysisLog.xml", StringComparison.InvariantCultureIgnoreCase)
                || file.Name.EndsWith(".lastcodeanalysissucceeded", StringComparison.InvariantCultureIgnoreCase)

                // OS metadata files
                || this.EqualsInvariant(file.Name, ".DS_Store")
                || this.EqualsInvariant(file.Name, "Thumbs.db");
        }

        /// <summary>Get a case-insensitive dictionary matching the given JSON.</summary>
        /// <param name="json">The JSON to parse.</param>
        private IDictionary<string, object> Parse(string json)
        {
            IDictionary<string, object> MakeCaseInsensitive(IDictionary<string, object> dict)
            {
                foreach (var field in dict.ToArray())
                {
                    if (field.Value is IDictionary<string, object> value)
                        dict[field.Key] = MakeCaseInsensitive(value);
                }
                return new Dictionary<string, object>(dict, StringComparer.InvariantCultureIgnoreCase);
            }

            IDictionary<string, object> data = (IDictionary<string, object>)new JavaScriptSerializer().DeserializeObject(json);
            return MakeCaseInsensitive(data);
        }

        /// <summary>Get whether a string is equal to another case-insensitively.</summary>
        /// <param name="str">The string value.</param>
        /// <param name="other">The string to compare with.</param>
        private bool EqualsInvariant(string str, string other)
        {
            return str.Equals(other, StringComparison.InvariantCultureIgnoreCase);
        }
    }
}