From 1d3e221a7a20bfd03517e3ae1e35e4a309a69b6a Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sun, 10 Dec 2017 01:10:48 +0100
Subject: Add support for dependencies in global lib dir

Global lib dir is located at ~/.sibs/lib
TODO: If global lib dir doesn't exist, download it from github/server
---
 src/GlobalLib.cpp | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 src/GlobalLib.cpp

(limited to 'src/GlobalLib.cpp')

diff --git a/src/GlobalLib.cpp b/src/GlobalLib.cpp
new file mode 100644
index 0000000..0ed34c7
--- /dev/null
+++ b/src/GlobalLib.cpp
@@ -0,0 +1,143 @@
+#include "../include/GlobalLib.hpp"
+#include "../include/FileUtil.hpp"
+#include "../backend/ninja/Ninja.hpp"
+#include "../include/Conf.hpp"
+
+using namespace std;
+
+namespace sibs
+{
+    Result<bool> GlobalLib::validatePackageExists(const string &globalLibRootDir, const string &name)
+    {
+        string packageDir = globalLibRootDir + "/";
+        packageDir += name;
+        FileType packageDirFileType = getFileType(packageDir.c_str());
+        switch(packageDirFileType)
+        {
+            case FileType::FILE_NOT_FOUND:
+            {
+                string errMsg = "Global lib dependency not found: ";
+                errMsg += name;
+                return Result<bool>::Err(errMsg);
+            }
+            case FileType::REGULAR:
+            {
+                string errMsg = "Corrupt library directory. ";
+                errMsg += packageDir;
+                errMsg += " is a file, expected it to be a directory";
+                return Result<bool>::Err(errMsg);
+            }
+            case FileType::DIRECTORY:
+            {
+                return Result<bool>::Ok(true);
+            }
+            default:
+            {
+                return Result<bool>::Err("Unexpected error!");
+            }
+        }
+    }
+
+    const char *sourceFileExtensions[] = { "c", "cc", "cpp", "cxx" };
+    bool isSourceFile(tinydir_file *file)
+    {
+        if(!file->is_reg)
+            return false;
+
+        for(const char *sourceFileExtension : sourceFileExtensions)
+        {
+            if(_tinydir_strcmp(sourceFileExtension, file->extension) == 0)
+                return true;
+        }
+
+        return false;
+    }
+
+    Result<string> GlobalLib::getDynamicLibsLinkerFlags(const string &globalLibRootDir, const string &name, const string &version)
+    {
+        Result<bool> packageExistsResult = validatePackageExists(globalLibRootDir, name);
+        if(packageExistsResult.isErr())
+            return Result<string>::Err(packageExistsResult.getErrMsg());
+
+        string packageDir = globalLibRootDir + "/";
+        packageDir += name;
+
+        // TODO: Instead of checking if version is exact match, check if package has same major version
+        // and same or newer minor version
+        string foundVersion;
+        walkDir(packageDir.c_str(), [&foundVersion, &version](tinydir_file *file)
+        {
+            if(file->is_dir)
+            {
+                printf("version: %s\n", file->name);
+                if(_tinydir_strcmp(version.c_str(), file->name) == 0)
+                    foundVersion = file->name;
+            }
+        });
+
+        if(foundVersion.empty())
+            return Result<string>::Err("Global lib dependency found, but version doesn't match dependency version");
+
+        packageDir += "/";
+        packageDir += version;
+
+        string projectConfFilePath = packageDir;
+        projectConfFilePath += "/project.conf";
+
+        FileType projectConfFileType = getFileType(projectConfFilePath.c_str());
+        switch(projectConfFileType)
+        {
+            case FileType::FILE_NOT_FOUND:
+            {
+                string errMsg = "Global lib dependency found: ";
+                errMsg += packageDir;
+                errMsg += ", but it's missing a project.conf file";
+                return Result<string>::Err(errMsg);
+            }
+            case FileType::DIRECTORY:
+            {
+                string errMsg = "Global lib dependency found: ";
+                errMsg += packageDir;
+                errMsg += ", but it's corrupt (Found directory instead of file)";
+                return Result<string>::Err(errMsg);
+            }
+        }
+
+        SibsConfig sibsConfig;
+        Result<bool> result = Config::readFromFile(projectConfFilePath.c_str(), sibsConfig);
+        if(result.isErr())
+            return Result<string>::Err(result.getErrMsg());
+
+        if(sibsConfig.getPackageName().empty())
+            return Result<string>::Err("project.conf is missing required field package.name");
+
+        backend::Ninja ninja(backend::Ninja::LibraryType::STATIC);
+        walkDirFilesRecursive(packageDir.c_str(), [&ninja, &packageDir](tinydir_file *file)
+        {
+            if (isSourceFile(file))
+            {
+                printf("Adding source file: %s\n", file->path + packageDir.size() + 1);
+                ninja.addSourceFile(file->path + packageDir.size() + 1);
+            } else
+            {
+                //printf("Ignoring non-source file: %s\n", file->path + packageDir.size() + 1);
+            }
+        });
+
+        // TODO: Create build path if it doesn't exist
+        string debugBuildPath = packageDir + "/build/debug";
+        Result<bool> buildFileResult = ninja.createBuildFile(sibsConfig.getPackageName(), sibsConfig.getDependencies(), debugBuildPath.c_str());
+        if(buildFileResult.isErr())
+            return Result<string>::Err(buildFileResult.getErrMsg());
+
+        Result<bool> buildResult = ninja.build(debugBuildPath.c_str());
+        if(buildResult.isErr())
+            return Result<string>::Err(buildResult.getErrMsg());
+
+        string staticLibPath = debugBuildPath;
+        staticLibPath += "/lib";
+        staticLibPath += name;
+        staticLibPath += ".a";
+        return Result<string>::Ok(staticLibPath);
+    }
+}
\ No newline at end of file
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