124 lines
3.4 KiB
Diff
124 lines
3.4 KiB
Diff
diff --git a/src/Intrinsic.c b/src/Intrinsic.c
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--- a/src/Intrinsic.c
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+++ b/src/Intrinsic.c
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@@ -1345,21 +1345,99 @@ FillInLangSubs(Substitution subs, XtPerDisplay pd)
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}
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/*
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- * default path used if environment variable XFILESEARCHPATH
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- * is not defined. Also substitued for %D.
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- * The exact value should be documented in the implementation
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- * notes for any Xt implementation.
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+ Return the default search path for the function
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+ XtResolvePathname to use if XFILESEARCHPATH is
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+ not defined.
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+
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+ It returns the combination the set of values which are the 6 "stems" below,
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+ prepended with "/run/current-system/profile", and $GUIX_PROFILE and
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+ "$HOME/.guix-profile"
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+
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+ These values provide the default paths where Guix/GuixSD can expect
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+ to find resources for installed packages.
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*/
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static const char *
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-implementation_default_path(void)
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+guix_default_path(void)
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{
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-#if defined(WIN32)
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- static char xfilesearchpath[] = "";
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+ static const char *search_path_default_stem[] = {
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+ "/lib/X11/%L/%T/%N%C%S",
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+ "/lib/X11/%l/%T/%N%C%S",
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+ "/lib/X11/%T/%N%C%S",
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+ "/lib/X11/%L/%T/%N%S",
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+ "/lib/X11/%l/%T/%N%S",
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+ "/lib/X11/%T/%N%S"
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+ };
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+
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+#define SIZEOF_STEMS (strlen (search_path_default_stem[0]) \
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+ + strlen (search_path_default_stem[1]) \
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+ + strlen (search_path_default_stem[2]) \
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+ + strlen (search_path_default_stem[3]) \
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+ + strlen (search_path_default_stem[4]) \
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+ + strlen (search_path_default_stem[5]))
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+
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+
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+ int i;
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+ const char *current_profile = "/run/current-system/profile";
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+ char *home = getenv ("HOME");
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+ char *guix_profile = getenv ("GUIX_PROFILE");
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+
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+ size_t bytesAllocd = SIZEOF_STEMS + 1;
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+
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+ /* This function is evaluated multiple times and the calling
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+ code assumes that it is idempotent. So we must not allow
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+ (say) a changed environment variable to cause it to return
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+ something different. */
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+ static char *path = NULL;
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+ if (path)
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+ return path;
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+
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+ bytesAllocd += 6 * (1 + strlen (current_profile));
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+
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+ if (guix_profile != NULL)
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+ {
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+ bytesAllocd += SIZEOF_STEMS;
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+ bytesAllocd += 6 * (1 + strlen (guix_profile));
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+ }
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- return xfilesearchpath;
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-#else
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- return XFILESEARCHPATHDEFAULT;
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-#endif
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+ if (home != NULL)
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+ {
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+ bytesAllocd += SIZEOF_STEMS;
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+ bytesAllocd += 6 * (1 + strlen(home) + strlen ("/.guix-profile"));
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+ }
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+
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+ path = XtMalloc(bytesAllocd);
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+ if (path == NULL) _XtAllocError(NULL);
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+
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+ memset (path, 0, bytesAllocd);
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+
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+ for (i = 0 ; i < 6 ; ++i)
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+ {
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+ strcat (path, current_profile);
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+ strcat (path, search_path_default_stem[i]);
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+ strcat (path, ":");
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+ }
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+
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+ if (guix_profile != NULL)
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+ for (i = 0 ; i < 6 ; ++i)
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+ {
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+ strcat (path, guix_profile);
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+ strcat (path, search_path_default_stem[i]);
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+ strcat (path, ":");
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+ }
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+
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+ if (home != NULL)
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+ for (i = 0 ; i < 6 ; ++i)
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+ {
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+ strcat (path, home);
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+ strcat (path, "/.guix-profile");
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+ strcat (path, search_path_default_stem[i]);
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+ strcat (path, ":");
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+ }
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+
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+ /* Remove final : */
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+ path[strlen(path) - 1] = '\0';
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+
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+ return path;
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}
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@@ -1388,7 +1466,7 @@ XtResolvePathname(Display *dpy,
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{
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XtPerDisplay pd;
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static const char *defaultPath = NULL;
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- const char *impl_default = implementation_default_path();
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+ const char *impl_default = guix_default_path();
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int idef_len = (int) strlen(impl_default);
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char *massagedPath;
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int bytesAllocd, bytesLeft;
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