completion: improve handling of -c/-C and -b/-B in switch/checkout

A previous commit added several test cases highlighting the subpar
completion logic for -c/-C and -b/-B when completing git switch and git
checkout.

In order to distinguish completing the argument vs the start-point for
this option, we now use the wordlist to determine the previous full word
on the command line.

If it's -c or -C (-b/-B for checkout), then we know that we are
completing the argument for the branch name.

Given that a user who already knows the branch name they want to
complete will simply not use completion, it makes sense to complete the
small subset of local branches when completing the argument for -c/-C.

In all other cases, if -c/-C are on the command line but are not the
most recent option, then we must be completing a start-point, and should
allow completing against all references.

Update the -c/-C and -b/-B tests to indicate they now pass.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jacob Keller 2020-05-28 11:10:47 -07:00 committed by Junio C Hamano
parent 00e7bd2b00
commit acb658fe7d
2 changed files with 63 additions and 34 deletions

View file

@ -1505,8 +1505,31 @@ _git_checkout ()
;;
*)
local dwim_opt="$(__git_checkout_default_dwim_mode)"
local prevword prevword="${words[cword-1]}"
if [ -n "$(__git_find_on_cmdline "-d --detach")" ]; then
case "$prevword" in
-b|-B)
# Complete local branches (and DWIM branch
# remote branch names) for an option argument
# specifying a new branch name. This is for
# convenience, assuming new branches are
# possibly based on pre-existing branch names.
__git_complete_refs $dwim_opt --mode="heads"
return
;;
*)
;;
esac
# At this point, we've already handled special completion for
# the arguments to -b/-B. There are 3 main things left we can
# possibly complete:
# 1) a start-point for -b/-B or -d/--detach
# 2) a remote head, for --track
# 3) an arbitrary reference, possibly including DWIM names
#
if [ -n "$(__git_find_on_cmdline "-b -B -d --detach")" ]; then
__git_complete_refs --mode="refs"
elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
__git_complete_refs --mode="remote-heads"
@ -2361,8 +2384,30 @@ _git_switch ()
;;
*)
local dwim_opt="$(__git_checkout_default_dwim_mode)"
local prevword prevword="${words[cword-1]}"
if [ -n "$(__git_find_on_cmdline "-d --detach")" ]; then
case "$prevword" in
-c|-C)
# Complete local branches (and DWIM branch
# remote branch names) for an option argument
# specifying a new branch name. This is for
# convenience, assuming new branches are
# possibly based on pre-existing branch names.
__git_complete_refs $dwim_opt --mode="heads"
return
;;
*)
;;
esac
# At this point, we've already handled special completion for
# -c/-C. There are 3 main things left to
# complete:
# 1) a start-point for -c/-C or -d/--detach
# 2) a remote head, for --track
# 3) a branch name, possibly including DWIM remote branches
if [ -n "$(__git_find_on_cmdline "-c -C -d --detach")" ]; then
__git_complete_refs --mode="refs"
elif [ -n "$(__git_find_on_cmdline "--track")" ]; then
__git_complete_refs --mode="remote-heads"

View file

@ -1436,8 +1436,7 @@ test_expect_success 'git checkout - with --no-track, complete only local referen
EOF
'
#TODO: completing the start point of -c/-C should not include DWIM references
test_expect_failure 'git switch - with -c, complete all references' '
test_expect_success 'git switch - with -c, complete all references' '
test_completion "git switch -c new-branch " <<-\EOF
HEAD Z
master Z
@ -1448,8 +1447,7 @@ test_expect_failure 'git switch - with -c, complete all references' '
EOF
'
#TODO: completing the start point of -c/-C should not include DWIM references
test_expect_failure 'git switch - with -C, complete all references' '
test_expect_success 'git switch - with -C, complete all references' '
test_completion "git switch -C new-branch " <<-\EOF
HEAD Z
master Z
@ -1460,8 +1458,7 @@ test_expect_failure 'git switch - with -C, complete all references' '
EOF
'
#TODO: completing the start point of -c/-C should include all references, not just local branches
test_expect_failure 'git switch - with -c and --track, complete all references' '
test_expect_success 'git switch - with -c and --track, complete all references' '
test_completion "git switch -c new-branch --track " <<-EOF
HEAD Z
master Z
@ -1472,8 +1469,7 @@ test_expect_failure 'git switch - with -c and --track, complete all references'
EOF
'
#TODO: completing the start point of -c/-C should include all references, not just local branches
test_expect_failure 'git switch - with -C and --track, complete all references' '
test_expect_success 'git switch - with -C and --track, complete all references' '
test_completion "git switch -C new-branch --track " <<-EOF
HEAD Z
master Z
@ -1484,8 +1480,7 @@ test_expect_failure 'git switch - with -C and --track, complete all references'
EOF
'
#TODO: completing the start point of -c/-C should include all references, not just local branches
test_expect_failure 'git switch - with -c and --no-track, complete all references' '
test_expect_success 'git switch - with -c and --no-track, complete all references' '
test_completion "git switch -c new-branch --no-track " <<-\EOF
HEAD Z
master Z
@ -1496,8 +1491,7 @@ test_expect_failure 'git switch - with -c and --no-track, complete all reference
EOF
'
#TODO: completing the start point of -c/-C should include all references, not just local branches
test_expect_failure 'git switch - with -C and --no-track, complete all references' '
test_expect_success 'git switch - with -C and --no-track, complete all references' '
test_completion "git switch -C new-branch --no-track " <<-\EOF
HEAD Z
master Z
@ -1508,8 +1502,7 @@ test_expect_failure 'git switch - with -C and --no-track, complete all reference
EOF
'
#TODO: completing the start point of -b/-B should not include DWIM references
test_expect_failure 'git checkout - with -b, complete all references' '
test_expect_success 'git checkout - with -b, complete all references' '
test_completion "git checkout -b new-branch " <<-\EOF
HEAD Z
master Z
@ -1520,8 +1513,7 @@ test_expect_failure 'git checkout - with -b, complete all references' '
EOF
'
#TODO: completing the start point of -b/-B should not include DWIM references
test_expect_failure 'git checkout - with -B, complete all references' '
test_expect_success 'git checkout - with -B, complete all references' '
test_completion "git checkout -B new-branch " <<-\EOF
HEAD Z
master Z
@ -1532,8 +1524,7 @@ test_expect_failure 'git checkout - with -B, complete all references' '
EOF
'
#TODO: completing the start point of -b/-B should not include DWIM references
test_expect_failure 'git checkout - with -b and --track, complete all references' '
test_expect_success 'git checkout - with -b and --track, complete all references' '
test_completion "git checkout -b new-branch --track " <<-EOF
HEAD Z
master Z
@ -1544,8 +1535,7 @@ test_expect_failure 'git checkout - with -b and --track, complete all references
EOF
'
#TODO: completing the start point of -b/-B should not include DWIM references
test_expect_failure 'git checkout - with -B and --track, complete all references' '
test_expect_success 'git checkout - with -B and --track, complete all references' '
test_completion "git checkout -B new-branch --track " <<-EOF
HEAD Z
master Z
@ -1624,8 +1614,7 @@ test_expect_success 'git switch - for -C with --no-track, complete local branche
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -b, complete local branches and unique remote branches' '
test_expect_success 'git checkout - for -b, complete local branches and unique remote branches' '
test_completion "git checkout -b " <<-\EOF
branch-in-other Z
master Z
@ -1634,8 +1623,7 @@ test_expect_failure 'git checkout - for -b, complete local branches and unique r
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -B, complete local branches and unique remote branches' '
test_expect_success 'git checkout - for -B, complete local branches and unique remote branches' '
test_completion "git checkout -B " <<-\EOF
branch-in-other Z
master Z
@ -1644,32 +1632,28 @@ test_expect_failure 'git checkout - for -B, complete local branches and unique r
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -b with --no-guess, complete local branches only' '
test_expect_success 'git checkout - for -b with --no-guess, complete local branches only' '
test_completion "git checkout --no-guess -b " <<-\EOF
master Z
matching-branch Z
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -B with --no-guess, complete local branches only' '
test_expect_success 'git checkout - for -B with --no-guess, complete local branches only' '
test_completion "git checkout --no-guess -B " <<-\EOF
master Z
matching-branch Z
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -b with --no-track, complete local branches only' '
test_expect_success 'git checkout - for -b with --no-track, complete local branches only' '
test_completion "git checkout --no-track -b " <<-\EOF
master Z
matching-branch Z
EOF
'
#TODO: -b/-B argument completion should not include all references
test_expect_failure 'git checkout - for -B with --no-track, complete local branches only' '
test_expect_success 'git checkout - for -B with --no-track, complete local branches only' '
test_completion "git checkout --no-track -B " <<-\EOF
master Z
matching-branch Z