From e132c085d2438fec368bdaf26032037bc7e88d00 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Thu, 28 Jun 2018 16:57:37 +0200
Subject: Add compiled files to .gitignore on sibs new and sibs init

---
 src/Conf.cpp |  1 +
 src/main.cpp | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/src/Conf.cpp b/src/Conf.cpp
index 4424551..c71c7bc 100644
--- a/src/Conf.cpp
+++ b/src/Conf.cpp
@@ -458,6 +458,7 @@ namespace sibs
         if(fileContentResult.unwrap().size >= 3 && utf8::is_bom(code))
             code += 3;
 
+        // Do not free file content (fileContentResult) on purpose, since we are using the data and sibs is short lived
         return Parser::parse(code, callback);
     }
 
diff --git a/src/main.cpp b/src/main.cpp
index 2dc1364..22198b5 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2,6 +2,7 @@
 #include <iostream>
 #include <unordered_set>
 #include <chrono>
+#include <algorithm>
 #include "../include/FileUtil.hpp"
 #include "../include/Conf.hpp"
 #include "../include/Exec.hpp"
@@ -97,6 +98,12 @@ using namespace std::chrono;
 #define ferr std::wcerr
 #endif
 
+static string SIBS_GITIGNORE_HEADER = "# Compiled sibs files";
+static string SIBS_GITIGNORE_FILES = 
+    "sibs-build/\n"
+    "tests/sibs-build/\n"
+    "compile_commands.json\n";
+
 void usage()
 {
     printf("Usage: sibs COMMAND\n\n");
@@ -505,6 +512,37 @@ Result<ExecResult> gitInitProject(const FileString &projectPath)
     return exec(cmd.c_str());
 }
 
+bool gitIgnoreContainsSibs(const FileString &gitIgnoreFilePath)
+{
+    Result<StringView> fileContentResult = getFileContent(gitIgnoreFilePath.c_str());
+    if(!fileContentResult) return false;
+    StringView fileContent = fileContentResult.unwrap();
+    const char *fileContentEnd = fileContent.data + fileContent.size;
+    auto it = std::search(fileContent.data, fileContentEnd, SIBS_GITIGNORE_HEADER.begin(), SIBS_GITIGNORE_HEADER.end());
+    bool containsSibs = it != fileContentEnd;
+    free((void*)fileContent.data);
+    return containsSibs;
+}
+
+void gitIgnoreAppendSibs(const FileString &gitIgnoreFilePath)
+{
+    Result<StringView> fileContentResult = getFileContent(gitIgnoreFilePath.c_str());
+    string fileContentNew;
+    if(fileContentResult)
+    {
+        StringView fileContent = fileContentResult.unwrap();
+        fileContentNew.append(fileContent.data, fileContent.data + fileContent.size);
+        fileContentNew += "\n\n";
+        free((void*)fileContent.data);
+    }
+    fileContentNew += SIBS_GITIGNORE_HEADER;
+    fileContentNew += "\n";
+    fileContentNew += SIBS_GITIGNORE_FILES;
+    Result<bool> result = fileOverwrite(gitIgnoreFilePath.c_str(), { fileContentNew.data(), fileContentNew.size() });
+    if(!result)
+        ferr << "Failed to add sibs to .gitignore, reason: " << result.getErrMsg() << endl;
+}
+
 int initProject(int argc, const _tinydir_char_t **argv)
 {
     if(argc > 2)
@@ -650,8 +688,12 @@ int initProject(int argc, const _tinydir_char_t **argv)
     if(!fileOverwriteResult)
         fout << "Warning: Failed to create project file: " << toFileString(fileOverwriteResult.getErrMsg()) << endl;
     auto gitProjDir = projectPath + TINYDIR_STRING("/.git");
-    if(getFileType(gitProjDir.c_str()) != FileType::FILE_NOT_FOUND)
+    if(getFileType(gitProjDir.c_str()) == FileType::FILE_NOT_FOUND)
         gitInitProject(projectPath);
+    
+    auto gitIgnoreFilePath = projectPath + TINYDIR_STRING("/.gitignore");
+    if(!gitIgnoreContainsSibs(gitIgnoreFilePath))
+        gitIgnoreAppendSibs(gitIgnoreFilePath);
     return 0;
 }
 
@@ -750,6 +792,8 @@ int newProject(int argc, const _tinydir_char_t **argv)
     }
     // We are ignoring git init result on purpose. If it fails, just ignore it; not important
     gitInitProject(projectPath);
+    auto gitIgnoreFilePath = projectPath + TINYDIR_STRING("/.gitignore");
+    gitIgnoreAppendSibs(gitIgnoreFilePath);
     return 0;
 }
 
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