Move shorten_fname{,1,s} and shorten_filenames from fileio.c

1 files changed, 126 insertions, 0 deletions

diff --git a/src/path.c b/src/path.c
index 99a4cec6cf..0d7685031b 100644
--- a/src/path.c
+++ b/src/path.c
@@ -8,6 +8,7 @@
 #include "fileio.h"
 #include "file_search.h"
 #include "garray.h"
+#include "memfile.h"
 #include "memline.h"
 #include "message.h"
 #include "misc1.h"
@@ -16,7 +17,9 @@
 #include "os/os.h"
 #include "os/shell.h"
 #include "os_unix.h"
+#include "quickfix.h"
 #include "regexp.h"
+#include "screen.h"
 #include "tag.h"
 #include "types.h"
 #include "ui.h"
@@ -1777,3 +1780,126 @@ int flags;                      /* EW_* flags */
 }
 #endif
 
+#if defined(FEAT_VIMINFO) || defined(FEAT_BROWSE) || \
+  defined(FEAT_QUICKFIX) || defined(FEAT_AUTOCMD) || defined(PROTO)
+/*
+ * Try to find a shortname by comparing the fullname with the current
+ * directory.
+ * Returns "full_path" or pointer into "full_path" if shortened.
+ */
+char_u *shorten_fname1(char_u *full_path)
+{
+  char_u      *dirname;
+  char_u      *p = full_path;
+
+  dirname = alloc(MAXPATHL);
+  if (dirname == NULL)
+    return full_path;
+  if (os_dirname(dirname, MAXPATHL) == OK) {
+    p = shorten_fname(full_path, dirname);
+    if (p == NULL || *p == NUL)
+      p = full_path;
+  }
+  vim_free(dirname);
+  return p;
+}
+#endif
+
+/*
+ * Try to find a shortname by comparing the fullname with the current
+ * directory.
+ * Returns NULL if not shorter name possible, pointer into "full_path"
+ * otherwise.
+ */
+char_u *shorten_fname(char_u *full_path, char_u *dir_name)
+{
+  int len;
+  char_u      *p;
+
+  if (full_path == NULL)
+    return NULL;
+  len = (int)STRLEN(dir_name);
+  if (fnamencmp(dir_name, full_path, len) == 0) {
+    p = full_path + len;
+    {
+      if (vim_ispathsep(*p))
+        ++p;
+      else
+        p = NULL;
+    }
+  } else
+    p = NULL;
+  return p;
+}
+
+/*
+ * Shorten filenames for all buffers.
+ * When "force" is TRUE: Use full path from now on for files currently being
+ * edited, both for file name and swap file name.  Try to shorten the file
+ * names a bit, if safe to do so.
+ * When "force" is FALSE: Only try to shorten absolute file names.
+ * For buffers that have buftype "nofile" or "scratch": never change the file
+ * name.
+ */
+void shorten_fnames(int force)
+{
+  char_u dirname[MAXPATHL];
+  buf_T       *buf;
+  char_u      *p;
+
+  os_dirname(dirname, MAXPATHL);
+  for (buf = firstbuf; buf != NULL; buf = buf->b_next) {
+    if (buf->b_fname != NULL
+        && !bt_nofile(buf)
+        && !path_with_url(buf->b_fname)
+        && (force
+            || buf->b_sfname == NULL
+            || os_is_absolute_path(buf->b_sfname))) {
+      vim_free(buf->b_sfname);
+      buf->b_sfname = NULL;
+      p = shorten_fname(buf->b_ffname, dirname);
+      if (p != NULL) {
+        buf->b_sfname = vim_strsave(p);
+        buf->b_fname = buf->b_sfname;
+      }
+      if (p == NULL || buf->b_fname == NULL)
+        buf->b_fname = buf->b_ffname;
+    }
+
+    /* Always make the swap file name a full path, a "nofile" buffer may
+     * also have a swap file. */
+    mf_fullname(buf->b_ml.ml_mfp);
+  }
+  status_redraw_all();
+  redraw_tabline = TRUE;
+}
+
+#if (defined(FEAT_DND) && defined(FEAT_GUI_GTK)) \
+  || defined(FEAT_GUI_MSWIN) \
+  || defined(FEAT_GUI_MAC) \
+  || defined(PROTO)
+/*
+ * Shorten all filenames in "fnames[count]" by current directory.
+ */
+void shorten_filenames(char_u **fnames, int count)
+{
+  int i;
+  char_u dirname[MAXPATHL];
+  char_u      *p;
+
+  if (fnames == NULL || count < 1)
+    return;
+  os_dirname(dirname, sizeof(dirname));
+  for (i = 0; i < count; ++i) {
+    if ((p = shorten_fname(fnames[i], dirname)) != NULL) {
+      /* shorten_fname() returns pointer in given "fnames[i]".  If free
+       * "fnames[i]" first, "p" becomes invalid.  So we need to copy
+       * "p" first then free fnames[i]. */
+      p = vim_strsave(p);
+      vim_free(fnames[i]);
+      fnames[i] = p;
+    }
+  }
+}
+#endif
+