completion: treat results of git ls-tree as file paths

Let's say there are files named 'foo bar.txt', and 'abc def/test.txt' in
repository. When following commands trigger a completion:

    git show HEAD:fo<Tab>
    git show HEAD:ab<Tab>

The completion results in bash/zsh:

    git show HEAD:foo bar.txt
    git show HEAD:abc def/

Where the both of them have an unescaped space in paths, so they'll be
misread by git. All entries of git ls-tree either a filename or a
directory, so __gitcomp_file() is proper rather than __gitcomp_nl().

Note the commit f12785a3, which handles quoted paths properly. Like this
case, we should dequote $cur_ for ?*:* case. For example, let's say
there is untracked directory 'abc deg', then trigger a completion:

    git show HEAD:abc\ de<Tab>
    git show HEAD:'abc de<Tab>
    git show HEAD:"abc de<Tab>

should uniquely complete 'abc def', but bash completes 'abc def' and
'abc deg' instead. In zsh, triggering a completion:

    git show HEAD:abc\ def/<Tab>

should complete 'test.txt', but nothing comes. The both problems will be
resolved by dequoting paths.

__git_complete_revlist_file() passes arguments to __gitcomp_nl() where
the first one is a list something like:

    abc def/Z
    foo bar.txt Z

where Z is the mark of the EOL.

- The trailing space of blob in __git ls-tree | sed.
  It makes the completion results become:

      git show HEAD:foo\ bar.txt\ <CURSOR>

  So git will try to find a file named 'foo bar.txt ' instead.

- The trailing slash of tree in __git ls-tree | sed.
  It makes the completion results on zsh become:

      git show HEAD:abc\ def/ <CURSOR>

  So that the last space on command like should be removed on zsh to
  complete filenames under 'abc def/'.

Signed-off-by: Chayoung You <yousbe@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 816ee32805d18aeec46bc78e82cfeea975c43032..26ea310fdac606cde6ca1f1e191c09d93473025f 100644 (file)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -855,7 +855,7 @@ __git_compute_merge_strategies ()
 
 __git_complete_revlist_file ()
 {
-       local pfx ls ref cur_="$cur"
+       local dequoted_word pfx ls ref cur_="$cur"
        case "$cur_" in
        *..?*:*)
                return
@@ -863,14 +863,18 @@ __git_complete_revlist_file ()
        ?*:*)
                ref="${cur_%%:*}"
                cur_="${cur_#*:}"
-               case "$cur_" in
+
+               __git_dequote "$cur_"
+
+               case "$dequoted_word" in
                ?*/*)
-                       pfx="${cur_%/*}"
-                       cur_="${cur_##*/}"
+                       pfx="${dequoted_word%/*}"
+                       cur_="${dequoted_word##*/}"
                        ls="$ref:$pfx"
                        pfx="$pfx/"
                        ;;
                *)
+                       cur_="$dequoted_word"
                        ls="$ref"
                        ;;
                esac
@@ -880,21 +884,10 @@ __git_complete_revlist_file ()
                *)   pfx="$ref:$pfx" ;;
                esac
 
-               __gitcomp_nl "$(__git ls-tree "$ls" \
-                               | sed '/^100... blob /{
-                                          s,^.*        ,,
-                                          s,$, ,
-                                      }
-                                      /^120000 blob /{
-                                          s,^.*        ,,
-                                          s,$, ,
-                                      }
-                                      /^040000 tree /{
-                                          s,^.*        ,,
-                                          s,$,/,
-                                      }
-                                      s/^.*    //')" \
-                       "$pfx" "$cur_" ""
+               __gitcomp_file "$(__git ls-tree "$ls" \
+                               | sed 's/^.*    //
+                                      s/$//')" \
+                       "$pfx" "$cur_"
                ;;
        *...*)
                pfx="${cur_%...*}..."

diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 137fdc9bd525bea9d6ccde256ee449ed389255c0..94157e58793b811cefc0751fa2daeac8d6036421 100755 (executable)
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1515,8 +1515,8 @@ test_expect_success 'show completes all refs' '
 
 test_expect_success '<ref>: completes paths' '
        test_completion "git show mytag:f" <<-\EOF
-       file1 Z
-       file2 Z
+       file1Z
+       file2Z
        EOF
 '
 
@@ -1525,7 +1525,7 @@ test_expect_success 'complete tree filename with spaces' '
        git add "name with spaces" &&
        git commit -m spaces &&
        test_completion "git show HEAD:nam" <<-\EOF
-       name with spaces Z
+       name with spacesZ
        EOF
 '
 
@@ -1534,8 +1534,8 @@ test_expect_success 'complete tree filename with metacharacters' '
        git add "name with \${meta}" &&
        git commit -m meta &&
        test_completion "git show HEAD:nam" <<-\EOF
-       name with ${meta} Z
-       name with spaces Z
+       name with ${meta}Z
+       name with spacesZ
        EOF
 '