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between directory trees and for merging changes from one tree into another. Obtained from: Paul Mackerras <paulus@samba.org>
101 lines
4.0 KiB
Plaintext
101 lines
4.0 KiB
Plaintext
Dirdiff-1.2.
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Paul Mackerras
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Linuxcare, Inc.
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<paulus@linuxcare.com.au>
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Dirdiff is a graphical tool for displaying the differences between
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directory trees and for merging changes from one tree into another.
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Dirdiff can handle up to 5 trees. It displays a main window with a
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list of the files which are different between the trees, with colored
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squares to indicate the relative ages of the versions. A menu allows
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you to display the differences between any two of the versions in
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another window. Another menu allows you to copy the file from one
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tree to another.
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The differences window basically displays the output of `diff -u' with
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colored backgrounds to indicate which version each line comes from.
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The differences window also has a series of checkboxes which allow you
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to selectively apply changes from one version to another. You apply
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the selected changes using the merge menu. Dirdiff will then pop up
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another window containing the merged file. You can then edit the
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merged version and save it back into file.
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What's new in dirdiff-1.2.
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--------------------------
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* The help text and Makefile have been updated, thanks to Martin Pool.
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What was new in dirdiff-1.1.
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----------------------------
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* Dirdiff can now generate a patch containing the differences in a
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selected set of files between any two directory trees. See the
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File -> Make patch submenu in the main window.
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* Some key bindings have been fixed.
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* The results of a merge are now put into a window where it can be
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inspected and edited, rather than immediately replacing the original
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file.
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* There is now a find function which can be used in the differences
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window, the merge window and the patch window.
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* Various bugs have been fixed.
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Installation.
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-------------
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Dirdiff is a Tcl/TK script, so no compilation is required. Dirdiff
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however can make use of a shared library called filecmp.so.0.0 for
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comparing files. This is optional, but it has two benefits: (a)
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comparing files is faster with filecmp.so.0.0 (without it, dirdiff has
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to start an external process running `cmp'), and (b) filecmp.so.0.0
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can optionally ignore RCS strings when it is comparing two files.
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The Makefile in this directory will compile filecmp.so.0.0, and
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install it and dirdiff. By default dirdiff is installed in
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/usr/local/bin and filecmp.so.0.0 is installed in /usr/local/lib.
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Doing `make' will compile filecmp.so.0.0; `make install' will install
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dirdiff and filecmp.so.0.0.
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However, on many systems, Tcl/Tk does not look in /usr/local/lib for
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shared libraries, and so it will not find filecmp.so.0.0. This is not
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fatal; the consequences are that it will be a bit slower and that the
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`ignore RCS strings' option is not available. One solution is to
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install in /usr/bin or /usr/lib. To do this, you can do `make install
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DESTDIR=/usr'. Under Linux, you can alternatively edit your
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/etc/ld.so.conf to add /usr/local/lib and re-run ldconfig (after
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installing filecmp.so.0.0 in /usr/local/lib).
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Usage.
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------
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To use dirdiff, you invoke it from the command line with a list of
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directories (between 2 and 5). For example, suppose I have 3 copies
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of the Linux kernel source code, in directories called linux, bk, and
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pmac. I can see the differences between these 3 trees with a command
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like:
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$ dirdiff linux bk pmac
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This will display the file list window and start comparing the trees,
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displaying files which differ as they are found. To see the
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differences between two versions, click on the file name and then
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select the versions to compare from the Diff menu. To copy from one
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tree to another, click on the file name and select the copy operation
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from the Copy menu.
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In the differences window, there are checkboxes to the left of all the
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sections which are different. You can use button 1 to select an
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individual checkbox, or shift-button 1 or button 3 to select a whole
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group. Selecting a line means that you are asking for that change to
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be made when you update either of the files using the Merge menu. The
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line will be removed if it is already present or added if it is not
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present.
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