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| author | Jeff King <peff@peff.net> | 2010-01-13 12:35:31 -0500 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2010-01-14 09:24:42 -0800 |
| commit | 0a0416a34a7ef5c64f4e0226371e4cab8c1ba982 (patch) | |
| tree | 76ce0e33cbe408a9ead5d29f66a1ec171a8d106c | |
| parent | 902f235378cb2b2f6dd5dd664b9630c95321f0ae (diff) | |
| download | git-0a0416a34a7ef5c64f4e0226371e4cab8c1ba982.tar.gz | |
strbuf_expand: convert "%%" to "%"
The only way to safely quote arbitrary text in a pretty-print user
format is to replace instances of "%" with "%x25". This is slightly
unreadable, and many users would expect "%%" to produce a single
"%", as that is what printf format specifiers do.
This patch converts "%%" to "%" for all users of strbuf_expand():
(1) git-daemon interpolated paths
(2) pretty-print user formats
(3) merge driver command lines
Case (1) was already doing the conversion itself outside of
strbuf_expand(). Case (2) is the intended beneficiary of this patch.
Case (3) users probably won't notice, but as this is user-facing
behavior, consistently providing the quoting mechanism makes sense.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | Documentation/pretty-formats.txt | 1 | ||||
| -rw-r--r-- | Documentation/technical/api-strbuf.txt | 4 | ||||
| -rw-r--r-- | daemon.c | 1 | ||||
| -rw-r--r-- | strbuf.c | 6 | ||||
| -rwxr-xr-x | t/t6006-rev-list-format.sh | 7 |
5 files changed, 18 insertions, 1 deletions
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt index 53a9168ba7..1686a54d22 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -134,6 +134,7 @@ The placeholders are: - '%C(...)': color specification, as described in color.branch.* config option - '%m': left, right or boundary mark - '%n': newline +- '%%': a raw '%' - '%x00': print a byte from a hex code - '%w([<w>[,<i1>[,<i2>]]])': switch line wrapping, like the -w option of linkgit:git-shortlog[1]. diff --git a/Documentation/technical/api-strbuf.txt b/Documentation/technical/api-strbuf.txt index a0e0f850f8..3b1da10f26 100644 --- a/Documentation/technical/api-strbuf.txt +++ b/Documentation/technical/api-strbuf.txt @@ -199,6 +199,10 @@ character if the letter `n` appears after a `%`. The function returns the length of the placeholder recognized and `strbuf_expand()` skips over it. + +The format `%%` is automatically expanded to a single `%` as a quoting +mechanism; callers do not need to handle the `%` placeholder themselves, +and the callback function will not be invoked for this placeholder. ++ All other characters (non-percent and not skipped ones) are copied verbatim to the strbuf. If the callback returned zero, meaning that the placeholder is unknown, then the percent sign is copied, too. @@ -147,7 +147,6 @@ static char *path_ok(char *directory) { "IP", ip_address }, { "P", tcp_port }, { "D", directory }, - { "%", "%" }, { NULL } }; @@ -227,6 +227,12 @@ void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, break; format = percent + 1; + if (*format == '%') { + strbuf_addch(sb, '%'); + format++; + continue; + } + consumed = fn(sb, format, context); if (consumed) format += consumed; diff --git a/t/t6006-rev-list-format.sh b/t/t6006-rev-list-format.sh index 571931588e..b0047d3c6b 100755 --- a/t/t6006-rev-list-format.sh +++ b/t/t6006-rev-list-format.sh @@ -19,6 +19,13 @@ test_cmp expect.$1 output.$1 " } +test_format percent %%h <<'EOF' +commit 131a310eb913d107dd3c09a65d1651175898735d +%h +commit 86c75cfd708a0e5868dc876ed5b8bb66c80b4873 +%h +EOF + test_format hash %H%n%h <<'EOF' commit 131a310eb913d107dd3c09a65d1651175898735d 131a310eb913d107dd3c09a65d1651175898735d |