git-mergetool-lib provides common merge tool functions.
Signed-off-by: David Aguilar <davvid@xxxxxxxxx>
---
Includes fixups from Markus
.gitignore | 1 +
Documentation/git-mergetool-lib.txt | 42 +++++++++++++++++++++++++++++++++++
Makefile | 1 +
command-list.txt | 1 +
git-mergetool-lib.sh | 42 +++++++++++++++++++++++++++++++++++
5 files changed, 87 insertions(+), 0 deletions(-)
create mode 100644 Documentation/git-mergetool-lib.txt
create mode 100644 git-mergetool-lib.sh
diff --git a/.gitignore b/.gitignore
index 966c886..75c154a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -80,6 +80,7 @@ git-merge-recursive
git-merge-resolve
git-merge-subtree
git-mergetool
+git-mergetool-lib
git-mktag
git-mktree
git-name-rev
diff --git a/Documentation/git-mergetool-lib.txt b/Documentation/git-mergetool-lib.txt
new file mode 100644
index 0000000..a8d62f5
--- /dev/null
+++ b/Documentation/git-mergetool-lib.txt
@@ -0,0 +1,42 @@
+git-mergetool-lib(1)
+====================
+
+NAME
+----
+git-mergetool-lib - Common git merge tool shell scriptlets
+
+SYNOPSIS
+--------
+'. "$(git --exec-path)/git-mergetool-lib"'
+
+DESCRIPTION
+-----------
+
+This is not a command the end user would want to run. Ever.
+This documentation is meant for people who are studying the
+Porcelain-ish scripts and/or are writing new ones.
+
+The 'git-mergetool-lib' scriptlet is designed to be sourced (using
+`.`) by other shell scripts to set up functions for working
+with git merge tools.
+
+Before sourcing it, your script should set up a few variables;
+`TOOL_MODE` is used to define the operation mode for various
+functions. 'diff' and 'merge' are valid values.
+
+FUNCTIONS
+---------
+get_merge_tool_path::
+ returns the `merge_tool_path` for a `merge_tool`.
+
+Author
+------
+Written by David Aguilar <davvid@xxxxxxxxx>
+
+Documentation
+--------------
+Documentation by David Aguilar and the git-list <git@xxxxxxxxxxxxxxx>.
+
+GIT
+---
+Part of the linkgit:git[1] suite
diff --git a/Makefile b/Makefile
index d77fd71..086f9e7 100644
--- a/Makefile
+++ b/Makefile
@@ -284,6 +284,7 @@ SCRIPT_SH += git-merge-octopus.sh
SCRIPT_SH += git-merge-one-file.sh
SCRIPT_SH += git-merge-resolve.sh
SCRIPT_SH += git-mergetool.sh
+SCRIPT_SH += git-mergetool-lib.sh
SCRIPT_SH += git-parse-remote.sh
SCRIPT_SH += git-pull.sh
SCRIPT_SH += git-quiltimport.sh
diff --git a/command-list.txt b/command-list.txt
index fb03a2e..922c815 100644
--- a/command-list.txt
+++ b/command-list.txt
@@ -69,6 +69,7 @@ git-merge-file plumbingmanipulators
git-merge-index plumbingmanipulators
git-merge-one-file purehelpers
git-mergetool ancillarymanipulators
+git-mergetool-lib purehelpers
git-merge-tree ancillaryinterrogators
git-mktag plumbingmanipulators
git-mktree plumbingmanipulators
diff --git a/git-mergetool-lib.sh b/git-mergetool-lib.sh
new file mode 100644
index 0000000..5f9ba97
--- /dev/null
+++ b/git-mergetool-lib.sh
@@ -0,0 +1,42 @@
+# git-mergetool-lib is a library for common merge tool functions
+diff_mode() {
+ test $TOOL_MODE = "diff"
+}
+
+get_merge_tool_path () {
+ if test -z "$2"; then
+ case "$1" in
+ emerge)
+ path=emacs
+ ;;
+ *)
+ path="$1"
+ ;;
+ esac
+ fi
+ echo "$path"
+}
+
+valid_tool () {
+ case "$1" in
+ kdiff3 | kompare | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
+ if test "$1" = "kompare" && ! diff_mode; then
+ return 1
+ fi
+ ;; # happy
+ *)
+ if test -z "$(get_custom_cmd "$1")"; then
+ return 1
+ fi
+ ;;
+ esac
+}
+
+get_custom_cmd () {
+ diff_mode &&
+ custom_cmd="$(git config difftool.$1.cmd)"
+ test -z "$custom_cmd" &&
+ custom_cmd="$(git config mergetool.$1.cmd)"
+ test -n "$custom_cmd" &&
+ echo "$custom_cmd"
+}
--
1.6.1.3
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