Make blame_draw check if the filename is NULL instead of empty

[tig.git] / NEWS

Release notes
=============

master
------

Improvements:

 - Add 'stage-split-chunk' action for splitting chunks in the stage view.
   Bound to '\' by default. (GH #107)
 - Add 'back' action bound to '<' by default, which will return the blame view
   to the previous revision and line after moving e.g. to the parent. (GH #124)
 - User-defined commands no longer needs to always be prefixed with '!'.
 - Add auto-configuration for Cygwin (OS name: CYGWIN_NT-6.1). (GH #92)
 - Add toggling for display files of untracked directories.
 - Add main view pager mode that reads git-log's '--pretty=raw' data
   from stdin, e.g. `git reflog --pretty=raw | tig --pretty=raw`.
 - Document the Git commands supported by the pager mode.  (GH #1)

Bug fixes:

 - Fix stash diff display when reloading the stash view after a deleting.
 - Correctly identify and highlight the remote branch tracked by HEAD.
 - Pass --no-color after user defined arguments to ensure that colors do not
   break the output parsing. (GH #191)
 - Close stdin when pager mode is not supported.
 - Show newly created branches in the main view. (GH #196)

tig-1.2.1
---------

Incompatibilities:

 - Move manual and man pages to doc/ directory and rename AsciiDoc files
   to have .asciidoc as the extension to make them render on GitHub.

Improvements:

 - Show blob sizes in the tree view either as bytes or using binary unit
   prefixes. Example: `set show-file-size = units`. (GH #163)
 - Reduce main view memory usage and startup time, especially when revision
   graph rendering is disabled. (GH #160)

Bug fixes:

 - Fix submodule-related setup to check for non-zero return value from
   setenv(). (GH #188)

tig-1.2
-------

 - Tig now has its own tag on Stack Overflow, where users are invited to
   ask questions: http://stackoverflow.com/questions/tagged/tig

Improvements:

 - Prompt commands can be bound to keys. For example:
   `bind diff F :set diff-options = --full-diff`. (GH #69, #116)
 - Add a diff-options setting for specifying default diff options.
   Example: `set diff-options = --patience`. (GH #116)
 - Options in diff-options and blame-options matching Tig browsing state
   variables are replaced.
 - Show diff stats as wide as the terminal. (GH #109)
 - Show line numbers in the branch view. (GH #135)
 - Add toggles for showing author email or email user names. (GH #115)
 - Open editor at the selected line by prefixing the file argument with
   `+<lineno>`. Tested in vi, Vim, Emacs, Nano, Gedit, Geany. Disable
   by adding `set editor-line-number = no` to ~/.tigrc. (GH #118, #119)
 - Add toggle-files to control whether to show full commit diff or only
   the diff concerning the currently selected file, e.g. for blame.
 - Optionally highlight exceeding characters in long commit titles.
   The default title max width is 50 characters. Customize using:
   `set title-overflow = 50` (GH #125)
 - Add +ESC key bindings. Example: `bind generic ^[v move-page-up` (GH #120)
 - Create temporary files in TMPDIR, TEMP, or TMP before defaulting to /tmp.
 - Reenable `tig log` as a subcommand. (GH #146)
 - Enable tilde expansion in ~/.tigrc "source" commands. (GH #168)
 - Introduce the stash view, bound to the 'y' keybinding. (GH #169, #174)

Bug fixes:

 - Fix blame and status to work in directories starting with a dot. (GH #172)
 - Reload current branch name when reloading the status view. (GH #93)
 - Fix compile errors on old Solaris. (GH #97)
 - Reload HEAD info when reloading the stage view. (GH #104, #93)
 - Fix disappearing branch labels after external commands. (GH #148)
 - Fix diff view display for staged/unstaged changes when using 'd'.
 - Fix display of status messages when toggling view options. (GH #111)
 - Fix illegal memory access. (GH #98)
 - Fix display of all branches label in repos with short branch names.
 - Fix rendering glitch for branch names.
 - Do not apply diff styling to untracked files in the stage view. (GH #153)
 - Fix tree indentation for entries containing combining characters. (GH #170)
 - Ignore unrepresentable characters when transliterating text for rendering.
 - Transliterate text to output encoding before trimming it to avoid
   misalignment. (GH #86)
 - Introduce a more natural context-sensitive log display. (GH #155)

tig-1.1
-------

Incompatibilities:

 - Disable diff move/copy detection by default, boosting diff
   performance on larger projects. Use git config 'diff.renames' option
   (Git-wide) to set your preferred behavior. Environment variable
   TIG_DIFF_OPTS can be used to restore the old behavior.
 - Fix manual keybinding for stage-single-line. (GH #108)
 - Values set for author-width and filename-width will result in widths
   one character bigger than previously.

Improvements:

 - Typing a text in the prompt will be interpreted as a Tig command.
   Prefixing the command with a '!' will execute this system command in
   an external pager. Entering a single key will execute the
   corresponding key binding.
 - Basic support for wrapping long line in pager, diff, and stage views.
   Enable using: `set wrap-lines = yes`. (GH #2)
 - User-defined commands prefixed with a '?' means prompt before
   execution. Example: `bind main B !?git rebase -i %(commit)`.
 - User-defined commands prefixed with a '<' means exit after execution.
   Example: `bind main C !<git commit`. (GH #66)
 - User-defined commands are executed unquoted to support shell commands.
   Example: `bind generic I !@sh -c "echo -n %(commit) | xclip -selection c"`.
   (GH #65)
 - Configure case-insensitive searches using: `set ignore-case = yes`.
 - Add "deleted mode" line type for better diff coloring.
 - Open editor when requesting edit action from within a file diff.
 - Update AX_WITH_CURSES to build under Cygwin.
 - Improve tigrc(5) documentation. (Debian #682766)
 - Allow to build on Mac OS 10.7 without the configure script. (GH #25)
 - Add option to split the view vertically instead of horizontally.
   Example: `set vertical-split = yes'. (GH #76)
 - Add 'show-id' and 'id-width' options to configure the display of
   commit IDs in the main view and ID width in the blame view. (GH #77)
 - Allow to override Git based encoding to UTF-8 by setting
   'i18n.commitencoding' or 'gui.encoding'.
 - Improve autobuild support to track generated files and work with
   autoreconf 2.61.
 - Commit IDs are read from stdin when --stdin is given; works for main
   and diff view, e.g. `tig --no-walk --stdin < cherry-picks.txt`.
 - Add option to disable focusing of the child view when it's opened.
   Disable using: `set focus-child = no`. (GH #83)
 - Allow to open blob related with added content in a diff. (GH #91)

Bug fixes:

 - Fix commit graph regression when a path spec is specified. (GH #53)
 - Main view: only show staged/unstaged changes for the current branch.
 - Support submodules created with current version of git. (GH #54)
 - Fix diff status message for file diffs with no content changes.
 - Fix parent blaming when Tig is launched in subdirectory. (GH #70)
 - Do not show deleted branch when reloading the branch view.

tig-1.0
-------

The master repository is git://github.com/jonas/tig.git, and the old
master repository (http://jonas.nitro.dk/tig/tig.git) will be retired.

Improvements:

 - Use git-log(1)s default commit ordering. The old behavior can be
   restored by adding `set commit-order = topo` to ~/.tigrc.
 - Support staging of single lines. Bound to '1' default. (GH #21)
 - Use +<lineno> to open the initial view at an arbitrary line. (GH #20)
 - Add show-notes ~/.tigrc option. Notes are displayed by default.
 - Support jumping to specific SHAs in the main view.
 - Decorate replaced commits.
 - Display line numbers in main view.
 - Colorize binary diff stats. (GH #17)
 - Custom colorization of lines matching a string prefix (GH #16).
   Example configuration: color "Reported-by:" green default
 - Use Git's color settings for the main, status and diff views.
   Put `set read-git-colors = no` in ~/.tigrc to disable.
 - Handle editor options with multiple arguments. (GH #12)
 - Show filename when running tig blame with copy detection. (GH #19)
 - Use 'source <path>' command to load additional files from ~/.tigrc
 - User-defined commands prefixed with '@' are run with no console
   output, e.g.

        bind generic 3 !@rm sys$command

 - Make display of space changes togglable in the diff and stage view.
   Bound to 'W' by default.
 - Use per-file encoding specified in gitattributes(5) for blobs and
   unstaged files.
 - Obsolete commit-encoding option and pass --encoding=UTF-8 to revision
   commands.
 - Main view: show uncommitted changes as staged/unstaged commits.
   Can be disabled by putting `set show-changes = no` in ~/.tigrc.
 - Add %(prompt) external command variable, which will prompt for the
   argument value.
 - Log information about Git commands when the TIG_TRACE environment
   variable is set. Example: `TIG_TRACE=/tmp/tig.log tig`
 - Branch view: Show the title of the last commit.
 - Increase the author auto-abbreviation threshold to 10. (GH #49)
 - For old commits show number of years in relative dates. (GH #50)

Bug fixes:

 - Fix navigation behavior when going from branch to main view. (GH #38)
 - Fix segfault when sorting the tree view by author name.
 - Fix diff stat navigation for unmodified files with stat changes.
 - Show branches/refs which names are a substring of the current branch.
 - Stage view: fix off-by-one error when jumping to a file in a diff
   with only one file.
 - Fix diff-header colorization. (GH #15)
  
tig-0.18
--------

Incompatibilities:

 - Remove support for the deprecated TIG_{MAIN,DIFF,LOG,TREE,BLOB}_CMD
   environment variables.

Improvements:

 - Pressing enter on diff stat file lines will jump to file's diff.
 - Naïvely color blame IDs to distinguish lines.
 - Document palette color options used for revision graph and blame IDs.
 - Add support for blaming diff lines.
 - Add diff-context option and bindings to increase the diff context in
   the diff and stage view.
 - (GH-6) Make blame configurable via extra options passed from the command
   line and blame-options setting from ~/.tigrc. For example:
   
        set blame-options = -C -C -C

Bug fixes:

 - Expand browsing state variables for prompt. (LP #694780, Debian #635546)
 - Fix segfault when sorting the branch view by author.
 - Expand %(directory) to . for the root directory. (GH-3)
 - Accept 'utf-8' for the line-graphics option as indicated in the docs.
 - Use erasechar() to check for the correct backspace character.

tig-0.17
--------

Improvements:

 - Start rewrite of the revision graph renderer. Three modes are
   supported UTF-8, ncurses line graphics, and ASCII. Also, enable
   revision graph rendering by default.

Bug fixes:

 - Fix ncurses 5.8 issue by passing non-zero column size to newwin().
 - Fix opening of diffs when browsing branches.

tig-0.16.2
----------

Bug fixes:

 - Fix regression causing empty tree view.
 - Fix set_tabsize() compile error for older versions of ncurses.

tig-0.16.1
----------

Improvements:

 - Add scroll-first-col action to jump to the first column. Bound to '|'
   by default.
 - Add 'status-untracked-dirs' option to ignore unknown directories
   contents in the status view. On by default.

Bug fixes:

 - Fix 'tig show <commit>' to show the provided commit.
 - Fix problem with empty diff views when file specs were passed on the
   command line.
 - Fix segfault when starting Tig in pager mode.

tig-0.16
--------

Incompatibilities:

 - Encode everything internally as UTF-8. This can affect performance,
   but should in general improve handling of character lengths etc.
   Also, to properly handle UTF-8 environments use ncurses with wide
   character support.
 - The use of TIG_{MAIN,DIFF,LOG,TREE,BLOB}_CMD environment variables
   has been deprecated. To allow configuration of the diff view,
   TIG_DIFF_OPTS can be used.

Improvements:

 - Plug several memory leaks.
 - Command line arguments are split into diff, revision, and file
   arguments and made available as %(diffargs), %(revargs), and
   %(fileargs). Diff view will limit diffs using %(fileargs).
 - Status view: update the file variable when a line is selected so
   %(file) works as expected.
 - Branch view: add %(branch) symbol providing access to the selected
   branch.
 - Branch view: add entry to browse all branches (uses git-log's --all
   flag).
 - Abbreviation of author names can now be configured and toggled.
 - Mark detached heads with [HEAD].
 - Add support for displaying dates in local time.

Bug fixes:

 - Status view: fix usage from sub directories, which was broken by the
   changes made to support blame view from sub directories.
 - Fix text expansion to not truncate long lines
 - Fix parsing of boolean show-date values.
 - Fix relative date.
 - Fix unbind to behave as if the keybinding was never defined.
 - Fix unbind to also cover built-in run requests.
 - Fix parsing of unknown keymap names.
 - Blame view: fix parent blame to detect renames. It uses "previous"
   line info from the blame porcelain output added in Git version 1.6.3.

tig-0.15
--------

Incompatibilities:

 - Setting the cursor color no longer automatically sets the text to
   bold. The old 'lazy' behavior was a bug.
 - Remove check for git-repo-config, which was officially deprecated in
   Git version 1.5.4. The configure script no longer depends on Git
   being installed.

Improvements:

 - Provide the manual as a man page named tigmanual(7).
 - Add ability to toggle between showing shorter dates (without time
   info) and relative dates. Use 'D' to toggle between date formats.
 - Show the active (instead of the default) keybindings in the help
   view. Furthermore, honor the keymap when suggesting actions in the
   help messages.
 - Add branch view for choosing which branch to display in the main
   view. Bound to 'H' by default.
 - Tree view: show entry to parent directory ('..') when running from
   subdirectory.
 - Tree view: sort entries by name, date or author. Toggling is bound to
   'i' by default, with 'I' controlling whether or not to sort in
   ascending order.
 - Make height of the lower view in a split view configurable by setting
   the 'split-view-height' variable to a number or a percentage.
   Defaults to 2/3 of the total view height.
 - Allow multiple text attributes for color commands:

        color cursor white blue underline bold

Bug fixes:

 - Blame view: fix loading of blame data when opened from the tree view
   and CWD is not the repo root. (Debian bug 540766)
 - Tree view: fix searching.

tig-0.14.1
----------

Improvements:

 - Status view: improve "on branch" information inspired by the prompt
   code in Git's bash completion script.
 - Colors for 256-capable terminals can be specified as colorN.
 - Entering a number in the prompt will jump to that line number.
 - Handle core.worktree by setting GIT_DIR and GIT_WORK_TREE.
 - Make behavior of horizontal scrolling configurable by setting the
   'horizontal-scroll' variable to a number or a percentage. Defaults to
   scrolling 50% of the view width.

Bug fixes:

 - Status view: show error when failing to open a file.
 - Status view: report failures to update a file.
 - Blame view: fix problem with uninitialized variable.
 - Blame view: use line number information when loading blame for
   specific commit.
 - Fix handling of quoted strings in the config file.
 - Fix horizontal scrolling glitches.

tig-0.14
--------

Incompatibilities:

 - The screen-resize action has been deprecated. It had no real use for
   users and was never meant to be exposed.
 - The "tree-parent" action was renamed to "parent". Warnings will be
   emitted for transition.
 - Remove parsing of deprecated option -S and subcommands log and diff.
 - The "author" color replaces "main-author". Setting the latter will
   now set the "author" color.

Improvements:

 - Horizontal scrolling. Bound to Left/Right by default.
 - Read tigrc(5) options from Git configuration files using the syntax:

        [tig] show-rev-graph = true
        [tig "color"] cursor = yellow red bold 
        [tig "bind"] generic = P parent

 - Tree view: avoid flickering when updating.
 - Tree view: annotate entries with commit information.
 - Tree & blob view: open any blob in an editor.
 - Stage & main view: restore view position when reloading.
 - Blame view: load blame for parent commit. For merge commits the parent
   is queried. Bound to ',' by default via the existing "parent" action.
 - Abbreviate author names to initials when the width of the author column
   is below 6 characters.

Bug fixes:

 - Tree view: fix memory corruption bug when updating.
 - Tree view: improve handling of empty trees.
 - Status view: fix reverting of unmerged files.
 - Fix regression for non-UTF-8 locales corrupting the view data.
 - Fix regression parsing multiple spaces in ~/.tigrc.

tig-0.13
--------

Incompatibilities:

 - Commands from the environment (e.g. TIG_MAIN_CMD) will no longer have
   access to shell features, such as subshells and variable expansion.
   The easiest way to upgrade your configuration is to put such commands
   in a script file or as a Git alias.

Improvements:

 - Display repository references in the sorted order: tags, heads,
   tracked remotes, remotes.
 - Add bash completion for blame.
 - Tree view: edit files of the current branch.
 - Run requests: new identifiers %(directory), %(file), and %(ref)
 - Improve responsiveness and view loading speed by using select(2).

Bug fixes:

 - Separate blame revision and file argument by "--" to avoid problems.
 - Main view: fix redrawing of the last commit wrt. the revision graph.
 - Fix waiting for input after executing a run request in pager mode.
 - Status & stage view: refuse to open directories and deleted files.
 - Tree view: show error when requesting blame for all non-file entries.
 - Do not draw loading views, which are not displayed.
 - Fix launching of mergetool from a subdirectory.

tig-0.12.1
----------

Improvements:

 - Status view: revert uncommitted diff chunks and unstaged files with
   changes. Bound to '!' by default.
 - Main view: use --topo-order also when rev-list arguments are given on
   the command line.
 - Log view: support for refreshing.

Bug fixes:

 - Status view: use ls-files' --exclude-standard so user specific ignore
   rules are effective. The option was added in Git version 1.5.4.
 - Stage view: fix assertion failure triggered when updating while
   status view is not displayed.
 - Help view: avoid confusion by showing "(no key)" instead of "'?'" for
   unbound requests.
 - Reload repository references when refreshing the main (and log) view.
 - Do not maximize views when refreshing.

tig-0.12
--------

Improvements:

 - F5 also refreshes the current view.
 - Allow line graphics to be disabled with new line-graphics option.
 - Main view: also include the reference names when searching.
 - Main view: support for refreshing.
 - Main view: disable boundary commits by default. Use --boundary when
   they should be shown. (Debian bug 498628)
 - Stage view: add stage-next action to jump to next diff chunk that can
   be staged. By default bound to '@'.
 - Configure: check for the ncurses header files.
 - Add author-width option to customize the width of the author column.
   For example, put the following in ~/.tigrc: set author-width = 10

Bug fixes:

 - Fix regression when staging all diff chunks in a section.
 - Bind the maximize view action to 'O'; it conflicted with the
   keybinding to launch the merge tool in the status view.
 - Fix problem with $(cmd) usage in shell code. Some shells (jsh)
   installed as /bin/sh does not support it.
 - Do not show incomplete boundary commits when --no-walk is used.
 - Documentation: Rename gitlink macro to support AsciiDoc 8.2.3.
 - Ignore pipe reads with errno "Success" reported after a signals,
   for example when refreshing doing background loading.

tig-0.11
--------

Incompatibilities:

 - Remove parsing of deprecated options: -g, -l, -d.
 - The first seen '--' will stop option parsing and is passed to Git
   instead of breaking out of Tig's option parsing.

New features:

 - Blame view; bound to 'B' by default, reachable from the command line
   and the tree, status, and stage views.
 - Blame/main view: allow display of date, author, and references to be
   toggled on/off. Bound to 'D', 'A', and 'F' respectively.
 - Add action to maximize the current view.

Improvements:

 - Show the current branch in the status view.
 - Show local/light-weight tags.

Bug fixes:

 - Fix regressions for the pager mode.
 - Fix refreshing of the index with working directory info.

tig-0.10.1
----------

Improvements:

 - Status view: detect renamed files and show them with 'R'.
 - Status view: refresh the index to avoid "empty diffs".
 - Diff view: make diff headers more verbose to include e.g. committer.
 - Configure: check for the ncursesw library.

Bug fixes:

 - Fix UTF-8 handling for tag names and commit messages.
 - Fix the check for git-config(1) in configure to handle the case when
   Git has been installed using a libexecdir which is not in the path.
 - Fix replacing of SYSCONFDIR when installing from released tarballs.

tig-0.10
---------

Incompatibilities:

 - Deprecate most Tig specific command line options to make Tig more
   compatible with gitk. The deprecated options are: -g, -l, -d, and -S.
   Use of any of them will result in a warning being printed to stderr.
   Instead of '-S', use the new 'status' subcommand.
 - Make man page building depend on DocBook XSL version >= 1.72.0.
 - Install man pages in $(prefix)/share/man.
 - Implement the cherry pick action (bound to 'C') using new support for
   running external commands. This obsoletes the TIG_CHEERY_PICK
   environment variable

New features:

 - Add support for binding keys to external commands. To bind '.' to
   running git-commit(1), add the line: "bind generic . !git commit" to
   your ~/.tigrc. Each command can have replacement string such as
   %(commit), %(head), and %(blob), which are substituted before the
   command is run.
 - Add system-wide configuration file defaulting to $(prefix)/etc/tigrc.
 - Add the environment variables TIGRC_USER and TIGRC_SYSTEM to change
   user and system-wide configuration files, respectively.

Improvements:

 - Main view: color the revision graph.
 - Main view: show boundary commits; they are marked with '^' in the
   revision graph.
 - Tree view: add tree-parent action to jump to view of the parent tree.
   Bound to ',' by default.
 - Allow the default terminal colors to be overwritten. To use black
   text on white, add the line "color default white black" to your
   ~/.tigrc.
 - Misc. documentation improvements.

Bug fixes:

 - Use git-diff-index(1) and git-diff-files(1) instead of git-diff(1) to
   avoid running external diff drivers.
 - Use --no-color when calling git-log(1).
 - Fix crash when opening mergetool for lines that are not unmerged.

tig-0.9.1
---------

Incompatibilities:

 - Make the clean rule to never remove generated documentation files.
   Use the distclean rule for accomplishing this.

New features:

 - Add support for cherry-picking commits in the main view to the
   current branch. Bound to 'C' by default.

Improvements:

 - Add support for launching git-mergetool(1) from the status view.
   Bound to 'M' by default.
 - Add support for refreshing/reloading the status view
 - Detect working trees and disable the status view when it is missing.

Bug fixes:

 - Fix iconv() checking in configure.
 - Fix editor invocation to make paths relative to the project root.
 - Fix out-of-range current line when reloading the status view.
 - Include autoconf files in the tarball generated by `make dist`.

tig-0.9
-------

New features:

 - Add bash completion script for Tig (contrib/tig-completion.bash).
 - Add optional autoconf-based build infrastructure.
 - Add stage view for showing changes in the working tree and add
   support for staging individual diff chunks for commit.

Improvements:

 - Status view: allow all files in a section to be staged for commit.
 - Status view: Add support for opening files in an editor. Bound to 'e'
   by default.
 - Tree view: use a stack for remembering the lines for parent tree.