add history load/save

5 files changed, 87 insertions, 2 deletions

diff --git a/include/history.h b/include/history.h
index a4966e2..8b7a4bb 100644
--- a/include/history.h
+++ b/include/history.h
@@ -3,6 +3,8 @@
 #include <string>
 #include <vector>
 
+#include "path.h"
+
 namespace ov4
 {
 
@@ -15,4 +17,9 @@ void clear_history();
 
 std::size_t get_last_index();
 
+std::string get_default_history_path();
+
+void load_history(const std::string &path = get_default_history_path());
+void save_history(const std::string &path = get_default_history_path());
+
 }
diff --git a/include/path.h b/include/path.h
index c5f0d2b..d168581 100644
--- a/include/path.h
+++ b/include/path.h
@@ -7,8 +7,6 @@
 #include <iterator>
 #include <iostream>
 
-#include "all.h"
-
 
 namespace ov4
 {
@@ -19,4 +17,6 @@ std::string path_unifier(const std::string &s, bool is_cmd = false);
 std::string get_current_dir();
 int set_current_dir(const std::string &s);
 
+std::string get_home_dir();
+
 }
diff --git a/module-test/line_test.cc b/module-test/line_test.cc
index 2ad6f32..a54085c 100644
--- a/module-test/line_test.cc
+++ b/module-test/line_test.cc
@@ -6,6 +6,8 @@
    src/line/cursor.cc \
    src/line/getter.cc \
    src/history.cc \
+   src/path.cc \
+   src/util/string.cc \
    -std=c++26 -Iinclude -Ithird_party/magic_enum/include \
    -O0 -ggdb3 -fno-omit-frame-pointer -fno-inline -D_GLIBCXX_ASSERTIONS \
    -o module-test/line_test.out
@@ -21,12 +23,15 @@
 #include "line/cursor.h"
 #include "line/getter.h"
 #include "line/type.h"
+#include "history.h"
+#include "path.h"
 
 using namespace std;
 using namespace ov4;
 
 int main()
 {
+    load_history();
     while (true)
     {
         print("shell $ ");
@@ -39,6 +44,8 @@ int main()
         disable_raw();
         cout << "\n\n\n\n" << endl;
         cout << s << endl;
+        if (s == "quit") break;
     }
+    save_history();
     return 0;
 }
diff --git a/src/history.cc b/src/history.cc
index 3e976ce..4b3eba1 100644
--- a/src/history.cc
+++ b/src/history.cc
@@ -1,5 +1,15 @@
 #include "history.h"
 
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <print>
+#include <cstdio>
+#include <unistd.h>
+#include <fstream>
+#include <iostream>
+
+#include "util/io.h"
+
 using namespace std;
 
 namespace ov4
@@ -19,5 +29,54 @@ size_t get_last_index()
 {
     return history_vec.size() - 1;
 }
+
+string get_default_history_path()
+{
+    return get_home_dir() + '/' + ".ccshell_history";
+}
+
+void load_history(const string &path)
+{
+    history_vec.clear();
+    ifstream ifs(path);
+    if (!ifs.is_open())
+    {
+        loggerln("load_history: fail to open history");
+        return;
+    }
+    string tmp;
+    while (getline(ifs, tmp))
+    {
+        history_vec.push_back(tmp);
+    }
+    return;
+}
+
+void save_history(const string &path)
+{
+    int fd = open(path.c_str(), O_WRONLY | O_CREAT);
+    if (fd == -1) 
+    {
+        loggerln("save_history: fail to open() history");
+        return;
+    }
+    char f_mode = 'w';
+    FILE *f = fdopen(fd, &f_mode);
+    if (f == nullptr)
+    {
+        loggerln("save_history: fail to fdopen() history");
+        close(fd);
+        return;
+    }
+
+    for (auto &c : history_vec)
+    {
+        println(f, "{}", c);
+    }
+
+    fflush(f);
+    fsync(fd);
+    fclose(f);
+}
     
 }
diff --git a/src/path.cc b/src/path.cc
index 103e2c5..30e81cc 100644
--- a/src/path.cc
+++ b/src/path.cc
@@ -1,5 +1,12 @@
 #include "path.h"
 
+#include <pwd.h>
+#include <unistd.h>
+
+#include "global.h"
+#include "util/string.h"
+#include "util/io.h"
+
 namespace ov4
 {
 
@@ -67,5 +74,10 @@ string get_current_dir()
     return safe_str(getcwd(buf, MAXLINE));
 }
 
+string get_home_dir()
+{
+    return getpwuid(getuid())->pw_dir;
+}
+
 
 }