read_info_alternates: handle paths larger than PATH_MAX

diff --git a/pager.c b/pager.c
index 8b5cbc56e4fd57a1b9d2cad3e668df4c508a7b17..f6e8c331924496ca6656cd05d7de6497310502ab 100644 (file)
--- a/pager.c
+++ b/pager.c
@@ -6,19 +6,13 @@
 #define DEFAULT_PAGER "less"
 #endif
 
-struct pager_config {
-       const char *cmd;
-       int want;
-       char *value;
-};
-
 /*
  * This is split up from the rest of git so that we can do
  * something different on Windows.
  */
 
 static const char *pager_argv[] = { NULL, NULL };
-static struct child_process pager_process;
+static struct child_process pager_process = CHILD_PROCESS_INIT;
 
 static void wait_for_pager(void)
 {
@@ -80,17 +74,10 @@ void setup_pager(void)
        pager_process.use_shell = 1;
        pager_process.argv = pager_argv;
        pager_process.in = -1;
-       if (!getenv("LESS") || !getenv("LV")) {
-               static const char *env[3];
-               int i = 0;
-
-               if (!getenv("LESS"))
-                       env[i++] = "LESS=FRX";
-               if (!getenv("LV"))
-                       env[i++] = "LV=-c";
-               env[i] = NULL;
-               pager_process.env = env;
-       }
+       if (!getenv("LESS"))
+               argv_array_push(&pager_process.env_array, "LESS=FRX");
+       if (!getenv("LV"))
+               argv_array_push(&pager_process.env_array, "LV=-c");
        if (start_command(&pager_process))
                return;
 
@@ -155,30 +142,22 @@ int decimal_width(int number)
        return width;
 }
 
-static int pager_command_config(const char *var, const char *value, void *data)
+/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
+int check_pager_config(const char *cmd)
 {
-       struct pager_config *c = data;
-       if (starts_with(var, "pager.") && !strcmp(var + 6, c->cmd)) {
-               int b = git_config_maybe_bool(var, value);
+       int want = -1;
+       struct strbuf key = STRBUF_INIT;
+       const char *value = NULL;
+       strbuf_addf(&key, "pager.%s", cmd);
+       if (!git_config_get_value(key.buf, &value)) {
+               int b = git_config_maybe_bool(key.buf, value);
                if (b >= 0)
-                       c->want = b;
+                       want = b;
                else {
-                       c->want = 1;
-                       c->value = xstrdup(value);
+                       want = 1;
+                       pager_program = xstrdup(value);
                }
        }
-       return 0;
-}
-
-/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
-int check_pager_config(const char *cmd)
-{
-       struct pager_config c;
-       c.cmd = cmd;
-       c.want = -1;
-       c.value = NULL;
-       git_config(pager_command_config, &c);
-       if (c.value)
-               pager_program = c.value;
-       return c.want;
+       strbuf_release(&key);
+       return want;
 }