diff options
Diffstat (limited to 'contrib/completion/git-completion.bash')
| -rw-r--r-- | contrib/completion/git-completion.bash | 252 |
1 files changed, 213 insertions, 39 deletions
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash index 4b59004847..de5d0fbbd1 100644 --- a/contrib/completion/git-completion.bash +++ b/contrib/completion/git-completion.bash @@ -301,6 +301,19 @@ __gitcomp_direct () COMPREPLY=($1) } +# Similar to __gitcomp_direct, but appends to COMPREPLY instead. +# Callers must take care of providing only words that match the current word +# to be completed and adding any prefix and/or suffix (trailing space!), if +# necessary. +# 1: List of newline-separated matching completion words, complete with +# prefix and suffix. +__gitcomp_direct_append () +{ + local IFS=$'\n' + + COMPREPLY+=($1) +} + __gitcompappend () { local x i=${#COMPREPLY[@]} @@ -611,6 +624,19 @@ __git_heads () "refs/heads/$cur_*" "refs/heads/$cur_*/**" } +# Lists branches from remote repositories. +# 1: A prefix to be added to each listed branch (optional). +# 2: List only branches matching this word (optional; list all branches if +# unset or empty). +# 3: A suffix to be appended to each listed branch (optional). +__git_remote_heads () +{ + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + + __git for-each-ref --format="${pfx//\%/%%}%(refname:strip=2)$sfx" \ + "refs/remotes/$cur_*" "refs/remotes/$cur_*/**" +} + # Lists tags from the local repository. # Accepts the same positional parameters as __git_heads() above. __git_tags () @@ -621,6 +647,26 @@ __git_tags () "refs/tags/$cur_*" "refs/tags/$cur_*/**" } +# List unique branches from refs/remotes used for 'git checkout' and 'git +# switch' tracking DWIMery. +# 1: A prefix to be added to each listed branch (optional) +# 2: List only branches matching this word (optional; list all branches if +# unset or empty). +# 3: A suffix to be appended to each listed branch (optional). +__git_dwim_remote_heads () +{ + local pfx="${1-}" cur_="${2-}" sfx="${3-}" + local fer_pfx="${pfx//\%/%%}" # "escape" for-each-ref format specifiers + + # employ the heuristic used by git checkout and git switch + # Try to find a remote branch that cur_es the completion word + # but only output if the branch name is unique + __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \ + --sort="refname:strip=3" \ + "refs/remotes/*/$cur_*" "refs/remotes/*/$cur_*/**" | \ + uniq -u +} + # Lists refs from the local (by default) or from a remote repository. # It accepts 0, 1 or 2 arguments: # 1: The remote to list refs from (optional; ignored, if set but empty). @@ -696,13 +742,7 @@ __git_refs () __git_dir="$dir" __git for-each-ref --format="$fer_pfx%($format)$sfx" \ "${refs[@]}" if [ -n "$track" ]; then - # employ the heuristic used by git checkout - # Try to find a remote branch that matches the completion word - # but only output if the branch name is unique - __git for-each-ref --format="$fer_pfx%(refname:strip=3)$sfx" \ - --sort="refname:strip=3" \ - "refs/remotes/*/$match*" "refs/remotes/*/$match*/**" | \ - uniq -u + __git_dwim_remote_heads "$pfx" "$match" "$sfx" fi return fi @@ -749,29 +789,51 @@ __git_refs () # Usage: __git_complete_refs [<option>]... # --remote=<remote>: The remote to list refs from, can be the name of a # configured remote, a path, or a URL. -# --track: List unique remote branches for 'git checkout's tracking DWIMery. +# --dwim: List unique remote branches for 'git switch's tracking DWIMery. # --pfx=<prefix>: A prefix to be added to each ref. # --cur=<word>: The current ref to be completed. Defaults to the current # word to be completed. # --sfx=<suffix>: A suffix to be appended to each ref instead of the default # space. +# --mode=<mode>: What set of refs to complete, one of 'refs' (the default) to +# complete all refs, 'heads' to complete only branches, or +# 'remote-heads' to complete only remote branches. Note that +# --remote is only compatible with --mode=refs. __git_complete_refs () { - local remote track pfx cur_="$cur" sfx=" " + local remote dwim pfx cur_="$cur" sfx=" " mode="refs" while test $# != 0; do case "$1" in --remote=*) remote="${1##--remote=}" ;; - --track) track="yes" ;; + --dwim) dwim="yes" ;; + # --track is an old spelling of --dwim + --track) dwim="yes" ;; --pfx=*) pfx="${1##--pfx=}" ;; --cur=*) cur_="${1##--cur=}" ;; --sfx=*) sfx="${1##--sfx=}" ;; + --mode=*) mode="${1##--mode=}" ;; *) return 1 ;; esac shift done - __gitcomp_direct "$(__git_refs "$remote" "$track" "$pfx" "$cur_" "$sfx")" + # complete references based on the specified mode + case "$mode" in + refs) + __gitcomp_direct "$(__git_refs "$remote" "" "$pfx" "$cur_" "$sfx")" ;; + heads) + __gitcomp_direct "$(__git_heads "$pfx" "$cur_" "$sfx")" ;; + remote-heads) + __gitcomp_direct "$(__git_remote_heads "$pfx" "$cur_" "$sfx")" ;; + *) + return 1 ;; + esac + + # Append DWIM remote branch names if requested + if [ "$dwim" = "yes" ]; then + __gitcomp_direct_append "$(__git_dwim_remote_heads "$pfx" "$cur_" "$sfx")" + fi } # __git_refs2 requires 1 argument (to pass to __git_refs) @@ -1102,6 +1164,40 @@ __git_find_on_cmdline () done } +# Similar to __git_find_on_cmdline, except that it loops backwards and thus +# prints the *last* word found. Useful for finding which of two options that +# supersede each other came last, such as "--guess" and "--no-guess". +# +# Usage: __git_find_last_on_cmdline [<option>]... "<wordlist>" +# --show-idx: Optionally show the index of the found word in the $words array. +__git_find_last_on_cmdline () +{ + local word c=$cword show_idx + + while test $# -gt 1; do + case "$1" in + --show-idx) show_idx=y ;; + *) return 1 ;; + esac + shift + done + local wordlist="$1" + + while [ $c -gt 1 ]; do + ((c--)) + for word in $wordlist; do + if [ "$word" = "${words[c]}" ]; then + if [ -n "$show_idx" ]; then + echo "$c $word" + else + echo "$word" + fi + return + fi + done + done +} + # Echo the value of an option set on the command line or config # # $1: short option name @@ -1356,6 +1452,46 @@ _git_bundle () esac } +# Helper function to decide whether or not we should enable DWIM logic for +# git-switch and git-checkout. +# +# To decide between the following rules in priority order +# 1) the last provided of "--guess" or "--no-guess" explicitly enable or +# disable completion of DWIM logic respectively. +# 2) If the --no-track option is provided, take this as a hint to disable the +# DWIM completion logic +# 3) If GIT_COMPLETION_CHECKOUT_NO_GUESS is set, disable the DWIM completion +# logic, as requested by the user. +# 4) Enable DWIM logic otherwise. +# +__git_checkout_default_dwim_mode () +{ + local last_option dwim_opt="--dwim" + + if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ]; then + dwim_opt="" + fi + + # --no-track disables DWIM, but with lower priority than + # --guess/--no-guess + if [ -n "$(__git_find_on_cmdline "--no-track")" ]; then + dwim_opt="" + fi + + # Find the last provided --guess or --no-guess + last_option="$(__git_find_last_on_cmdline "--guess --no-guess")" + case "$last_option" in + --guess) + dwim_opt="--dwim" + ;; + --no-guess) + dwim_opt="" + ;; + esac + + echo "$dwim_opt" +} + _git_checkout () { __git_has_doubledash && return @@ -1368,14 +1504,38 @@ _git_checkout () __gitcomp_builtin checkout ;; *) - # check if --track, --no-track, or --no-guess was specified - # if so, disable DWIM mode - local flags="--track --no-track --no-guess" track_opt="--track" - if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] || - [ -n "$(__git_find_on_cmdline "$flags")" ]; then - track_opt='' + local dwim_opt="$(__git_checkout_default_dwim_mode)" + local prevword prevword="${words[cword-1]}" + + case "$prevword" in + -b|-B|--orphan) + # 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 $dwim_opt --mode="heads" + return + ;; + *) + ;; + esac + + # At this point, we've already handled special completion for + # the arguments to -b/-B, and --orphan. There are 3 main + # things left we can possibly complete: + # 1) a start-point for -b/-B, -d/--detach, or --orphan + # 2) a remote head, for --track + # 3) an arbitrary reference, possibly including DWIM names + # + + if [ -n "$(__git_find_on_cmdline "-b -B -d --detach --orphan")" ]; then + __git_complete_refs --mode="refs" + elif [ -n "$(__git_find_on_cmdline "--track")" ]; then + __git_complete_refs --mode="remote-heads" + else + __git_complete_refs $dwim_opt --mode="refs" fi - __git_complete_refs $track_opt ;; esac } @@ -2224,29 +2384,43 @@ _git_switch () __gitcomp_builtin switch ;; *) - # check if --track, --no-track, or --no-guess was specified - # if so, disable DWIM mode - local track_opt="--track" only_local_ref=n - if [ "$GIT_COMPLETION_CHECKOUT_NO_GUESS" = "1" ] || - [ -n "$(__git_find_on_cmdline "--track --no-track --no-guess")" ]; then - track_opt='' - fi - # explicit --guess enables DWIM mode regardless of - # $GIT_COMPLETION_CHECKOUT_NO_GUESS - if [ -n "$(__git_find_on_cmdline "--guess")" ]; then - track_opt='--track' - fi - if [ -z "$(__git_find_on_cmdline "-d --detach")" ]; then - only_local_ref=y - else - # --guess --detach is invalid combination, no - # dwim will be done when --detach is specified - track_opt= + local dwim_opt="$(__git_checkout_default_dwim_mode)" + local prevword prevword="${words[cword-1]}" + + case "$prevword" in + -c|-C|--orphan) + # 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 $dwim_opt --mode="heads" + return + ;; + *) + ;; + esac + + # Unlike in git checkout, git switch --orphan does not take + # a start point. Thus we really have nothing to complete after + # the branch name. + if [ -n "$(__git_find_on_cmdline "--orphan")" ]; then + return fi - if [ $only_local_ref = y -a -z "$track_opt" ]; then - __gitcomp_direct "$(__git_heads "" "$cur" " ")" + + # At this point, we've already handled special completion for + # -c/-C, and --orphan. 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" else - __git_complete_refs $track_opt + __git_complete_refs $dwim_opt --mode="heads" fi ;; esac |