Revert "Revert "Get the SHA from the environment.""
Revert "Revert "Get the SHA from the environment.""

This reverts commit d38fddd6301f980a798c835ac9ed182a22f82e54.

artivilla/desktop,j-f1/forked-desktop,gengjiawen/desktop,hjobrien/desktop,kactus-io/kactus,artivilla/desktop,hjobrien/desktop,shiftkey/desktop,j-f1/forked-desktop,kactus-io/kactus,j-f1/forked-desktop,shiftkey/desktop,shiftkey/desktop,say25/desktop,gengjiawen/desktop,artivilla/desktop,desktop/desktop,j-f1/forked-desktop,BugTesterTest/desktops,desktop/desktop,desktop/desktop,shiftkey/desktop,artivilla/desktop,BugTesterTest/desktops,say25/desktop,hjobrien/desktop,kactus-io/kactus,BugTesterTest/desktops,gengjiawen/desktop,kactus-io/kactus,gengjiawen/desktop,desktop/desktop,hjobrien/desktop,say25/desktop,say25/desktop,BugTesterTest/desktops