Open Tig in the project's root directory with alt-shift-t.
Open Tig on current file with ctrl-shift-t.
Open Tig blame on current file with ctrl-shift-b.
Based on package atom-terminal.
Keybindings: alt-shift-t, ctrl-shift-t, ctrl-shift-b
Install: apm install atom-tig
Config:
"atom-tig":
# only necessary if standard config doesn't find terminal app
app: "/path/to/your/favorite/terminal"
tig: "/path/to/tig"
args: "--useThisOptionWhenLaunchingTig"