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git/reflog-walk.h

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Teach the revision walker to walk by reflogs with --walk-reflogs When called with "--walk-reflogs", as long as there are reflogs available, the walker will take this information into account, rather than the parent information in the commit object. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-11 18:47:48 +08:00
#ifndef REFLOG_WALK_H
#define REFLOG_WALK_H
make oneline reflog dates more consistent with multiline format The multiline reflog format (e.g., as shown by "git log -g") will show HEAD@{<date>} rather than HEAD@{<count>} in two situations: 1. If the user gave branch@{<date>} syntax to specify the reflog 2. If the user gave a --date=<format> specifier It uses the "normal" date format in case 1, and the user-specified format in case 2. The oneline reflog format (e.g., "git reflog show" or "git log -g --oneline") will show the date in the same two circumstances. However, it _always_ shows the date as a relative date, and it always ignores the timezone. In case 2, it seems ridiculous to trigger the date but use a format totally different from what the user requested. For case 1, it is arguable that the user might want to see the relative date by default; however, the multiline version shows the normal format. This patch does three things: - refactors the "relative_date" parameter to show_reflog_message to be an actual date_mode enum, since this is how it is used (it is passed to show_date) - uses the passed date_mode parameter in the oneline format (making it consistent with the multiline format) - does not ignore the timezone parameter in oneline mode Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-20 14:00:43 +08:00
#include "cache.h"
Introduce new pretty formats %g[sdD] for reflog information Add three new --pretty=format escapes: %gD long reflog descriptor (e.g. refs/stash@{0}) %gd short reflog descriptor (e.g. stash@{0}) %gs reflog message This is achieved by passing down the reflog info, if any, inside the pretty_print_context struct. We use the newly refactored get_reflog_selector(), and give it some extra functionality to extract a shortened ref. The shortening is cached inside the commit_reflogs struct; the only allocation of it happens in read_complete_reflog(), where it is initialised to 0. Also add another helper get_reflog_message() for the message extraction. Note that the --format="%h %gD: %gs" tests may not work in real repositories, as the --pretty formatter doesn't know to leave away the ": " on the last commit in an incomplete (because git-gc removed the old part) reflog. This equivalence is nevertheless the main goal of this patch. Thanks to Jeff King for reviews, the %gd testcase and documentation. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19 23:48:10 +08:00
struct reflog_walk_info;
stylefix: asterisks stick to the variable, not the type Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-01 04:11:31 +08:00
extern void init_reflog_walk(struct reflog_walk_info **info);
git log -g: Complain, but do not fail, when no reflogs are there When asking "git log -g --all", clearly you want to see only those refs that do have reflogs, but you do not want it to fail, either. So instead of die()ing, complain about it, but move on to the other refs. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-24 07:39:50 +08:00
extern int add_reflog_for_walk(struct reflog_walk_info *info,
Teach the revision walker to walk by reflogs with --walk-reflogs When called with "--walk-reflogs", as long as there are reflogs available, the walker will take this information into account, rather than the parent information in the commit object. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-11 18:47:48 +08:00
struct commit *commit, const char *name);
extern void fake_reflog_parent(struct reflog_walk_info *info,
struct commit *commit);
make oneline reflog dates more consistent with multiline format The multiline reflog format (e.g., as shown by "git log -g") will show HEAD@{<date>} rather than HEAD@{<count>} in two situations: 1. If the user gave branch@{<date>} syntax to specify the reflog 2. If the user gave a --date=<format> specifier It uses the "normal" date format in case 1, and the user-specified format in case 2. The oneline reflog format (e.g., "git reflog show" or "git log -g --oneline") will show the date in the same two circumstances. However, it _always_ shows the date as a relative date, and it always ignores the timezone. In case 2, it seems ridiculous to trigger the date but use a format totally different from what the user requested. For case 1, it is arguable that the user might want to see the relative date by default; however, the multiline version shows the normal format. This patch does three things: - refactors the "relative_date" parameter to show_reflog_message to be an actual date_mode enum, since this is how it is used (it is passed to show_date) - uses the passed date_mode parameter in the oneline format (making it consistent with the multiline format) - does not ignore the timezone parameter in oneline mode Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-20 14:00:43 +08:00
extern void show_reflog_message(struct reflog_walk_info *info, int,
convert "enum date_mode" into a struct In preparation for adding date modes that may carry extra information beyond the mode itself, this patch converts the date_mode enum into a struct. Most of the conversion is fairly straightforward; we pass the struct as a pointer and dereference the type field where necessary. Locations that declare a date_mode can use a "{}" constructor. However, the tricky case is where we use the enum labels as constants, like: show_date(t, tz, DATE_NORMAL); Ideally we could say: show_date(t, tz, &{ DATE_NORMAL }); but of course C does not allow that. Likewise, we cannot cast the constant to a struct, because we need to pass an actual address. Our options are basically: 1. Manually add a "struct date_mode d = { DATE_NORMAL }" definition to each caller, and pass "&d". This makes the callers uglier, because they sometimes do not even have their own scope (e.g., they are inside a switch statement). 2. Provide a pre-made global "date_normal" struct that can be passed by address. We'd also need "date_rfc2822", "date_iso8601", and so forth. But at least the ugliness is defined in one place. 3. Provide a wrapper that generates the correct struct on the fly. The big downside is that we end up pointing to a single global, which makes our wrapper non-reentrant. But show_date is already not reentrant, so it does not matter. This patch implements 3, along with a minor macro to keep the size of the callers sane. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-26 00:55:02 +08:00
const struct date_mode *, int force_date);
Introduce new pretty formats %g[sdD] for reflog information Add three new --pretty=format escapes: %gD long reflog descriptor (e.g. refs/stash@{0}) %gd short reflog descriptor (e.g. stash@{0}) %gs reflog message This is achieved by passing down the reflog info, if any, inside the pretty_print_context struct. We use the newly refactored get_reflog_selector(), and give it some extra functionality to extract a shortened ref. The shortening is cached inside the commit_reflogs struct; the only allocation of it happens in read_complete_reflog(), where it is initialised to 0. Also add another helper get_reflog_message() for the message extraction. Note that the --format="%h %gD: %gs" tests may not work in real repositories, as the --pretty formatter doesn't know to leave away the ": " on the last commit in an incomplete (because git-gc removed the old part) reflog. This equivalence is nevertheless the main goal of this patch. Thanks to Jeff King for reviews, the %gd testcase and documentation. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19 23:48:10 +08:00
extern void get_reflog_message(struct strbuf *sb,
struct reflog_walk_info *reflog_info);
pretty: give placeholders to reflog identity When doing a reflog walk, you can get some information about the reflog (such as the subject line), but not the identity information (i.e., name and email). Let's make those available, mimicing the options for author and committer identity. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-16 19:40:24 +08:00
extern const char *get_reflog_ident(struct reflog_walk_info *reflog_info);
Introduce new pretty formats %g[sdD] for reflog information Add three new --pretty=format escapes: %gD long reflog descriptor (e.g. refs/stash@{0}) %gd short reflog descriptor (e.g. stash@{0}) %gs reflog message This is achieved by passing down the reflog info, if any, inside the pretty_print_context struct. We use the newly refactored get_reflog_selector(), and give it some extra functionality to extract a shortened ref. The shortening is cached inside the commit_reflogs struct; the only allocation of it happens in read_complete_reflog(), where it is initialised to 0. Also add another helper get_reflog_message() for the message extraction. Note that the --format="%h %gD: %gs" tests may not work in real repositories, as the --pretty formatter doesn't know to leave away the ": " on the last commit in an incomplete (because git-gc removed the old part) reflog. This equivalence is nevertheless the main goal of this patch. Thanks to Jeff King for reviews, the %gd testcase and documentation. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19 23:48:10 +08:00
extern void get_reflog_selector(struct strbuf *sb,
struct reflog_walk_info *reflog_info,
convert "enum date_mode" into a struct In preparation for adding date modes that may carry extra information beyond the mode itself, this patch converts the date_mode enum into a struct. Most of the conversion is fairly straightforward; we pass the struct as a pointer and dereference the type field where necessary. Locations that declare a date_mode can use a "{}" constructor. However, the tricky case is where we use the enum labels as constants, like: show_date(t, tz, DATE_NORMAL); Ideally we could say: show_date(t, tz, &{ DATE_NORMAL }); but of course C does not allow that. Likewise, we cannot cast the constant to a struct, because we need to pass an actual address. Our options are basically: 1. Manually add a "struct date_mode d = { DATE_NORMAL }" definition to each caller, and pass "&d". This makes the callers uglier, because they sometimes do not even have their own scope (e.g., they are inside a switch statement). 2. Provide a pre-made global "date_normal" struct that can be passed by address. We'd also need "date_rfc2822", "date_iso8601", and so forth. But at least the ugliness is defined in one place. 3. Provide a wrapper that generates the correct struct on the fly. The big downside is that we end up pointing to a single global, which makes our wrapper non-reentrant. But show_date is already not reentrant, so it does not matter. This patch implements 3, along with a minor macro to keep the size of the callers sane. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-26 00:55:02 +08:00
const struct date_mode *dmode, int force_date,
Introduce new pretty formats %g[sdD] for reflog information Add three new --pretty=format escapes: %gD long reflog descriptor (e.g. refs/stash@{0}) %gd short reflog descriptor (e.g. stash@{0}) %gs reflog message This is achieved by passing down the reflog info, if any, inside the pretty_print_context struct. We use the newly refactored get_reflog_selector(), and give it some extra functionality to extract a shortened ref. The shortening is cached inside the commit_reflogs struct; the only allocation of it happens in read_complete_reflog(), where it is initialised to 0. Also add another helper get_reflog_message() for the message extraction. Note that the --format="%h %gD: %gs" tests may not work in real repositories, as the --pretty formatter doesn't know to leave away the ": " on the last commit in an incomplete (because git-gc removed the old part) reflog. This equivalence is nevertheless the main goal of this patch. Thanks to Jeff King for reviews, the %gd testcase and documentation. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19 23:48:10 +08:00
int shorten);
Teach the revision walker to walk by reflogs with --walk-reflogs When called with "--walk-reflogs", as long as there are reflogs available, the walker will take this information into account, rather than the parent information in the commit object. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-11 18:47:48 +08:00
#endif
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