git搜索--grep

1. 查找某个关键字（比如函数名）：

$ git grep xmmap

config.c:               contents = xmmap(NULL, contents_sz, PROT_READ,

diff.c:                 s->data = xmmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd, );

git-compat-util.h:     extern void *xmmap(void *start, size_t length, int prot, int fla

read-cache.c:         mmap = xmmap(NULL, mmap_size, PROT_READ | PROT_WRITE, MAP_PRIVATE,

refs.c:                 log_mapped = xmmap(NULL, mapsz, PROT_READ, MAP_PRIVATE, logfd, );

sha1_file.c:             map = xmmap(NULL, mapsz, PROT_READ, MAP_PRIVATE, fd, );

sha1_file.c:               idx_map = xmmap(NULL, idx_size, PROT_READ, MAP_PRIVATE, fd, );

sha1_file.c:                    win->base = xmmap(NULL, win->len,

sha1_file.c:                    map = xmmap(NULL, *size, PROT_READ, MAP_PRIVATE, f

sha1_file.c:            buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, );

wrapper.c:             void *xmmap(void *start, size_t length,

1.1 如果要显示行号，添加‘-n’选项：

$ git grep -n xmmap

config.c::          contents = xmmap(NULL, contents_sz, PROT_READ,

diff.c::                 s->data = xmmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd,

git-compat-util.h::     extern void *xmmap(void *start, size_t length, int prot, int

read-cache.c::      mmap = xmmap(NULL, mmap_size, PROT_READ | PROT_WRITE, MAP_

refs.c::          log_mapped = xmmap(NULL, mapsz, PROT_READ, MAP_PRIVATE, logfd, );

sha1_file.c::        map = xmmap(NULL, mapsz, PROT_READ, MAP_PRIVATE, fd, );

sha1_file.c::        idx_map = xmmap(NULL, idx_size, PROT_READ, MAP_PRIVATE, fd

sha1_file.c::                        win->base = xmmap(NULL, win->len,

sha1_file.c::                       map = xmmap(NULL, *size, PROT_READ, MAP_PR

sha1_file.c::               buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd

wrapper.c::           void *xmmap(void *start, size_t length,

1.2 如果只显示文件名，添加‘--name-only’选项：

$ git grep --name-only xmmap

config.c

diff.c

git-compat-util.h

read-cache.c

refs.c

sha1_file.c

wrapper.c

1.3 统计每个文件里有多少行匹配内容，添加‘-c’选项：

$ git grep -c xmmap

config.c:

diff.c:

git-compat-util.h:

read-cache.c:

refs.c:

sha1_file.c:

wrapper.c:

1.4 查找git仓库里某个特定版本里的内容，添加tag名或sha号：

$ git grep xmmap v1.5.0

v1.5.0:config.c:                contents = xmmap(NULL, st.st_size, PROT_READ,

v1.5.0:diff.c:          s->data = xmmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd,

v1.5.0:git-compat-util.h:static inline void *xmmap(void *start, size_t length,

v1.5.0:read-cache.c:                    cache_mmap = xmmap(NULL, cache_mmap_size,

v1.5.0:refs.c:  log_mapped = xmmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, logfd

v1.5.0:sha1_file.c:     map = xmmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd,

v1.5.0:sha1_file.c:     idx_map = xmmap(NULL, idx_size, PROT_READ, MAP_PRIVATE, fd

v1.5.0:sha1_file.c:                     win->base = xmmap(NULL, win->len,

v1.5.0:sha1_file.c:     map = xmmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd,

v1.5.0:sha1_file.c:             buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd

1.5 查找git仓库里某个特定版本、特定文件里的内容（省略版本，默认当前版本），添加tag名或sha号、文件名：

$ git grep xmmap v1.5.0 diff.c

v1.5.0:diff.c:          s->data = xmmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd,

2. 某些关键字的逻辑组合

2.1 与逻辑：某一行既包括...又包括...

------------------->$ git grep -e 'pu' --and -e 'lic'

a.txt:public

c.txt:public

c.txt:public

2.2 或逻辑：某一行包括...或者包括...

------------------->$ git grep -e 'public' --or -e 'void'

a.txt:public

a.txt:void

b.txt:void

c.txt:public

c.txt:public

--or 是默认行为，如果省略：

------------------->$ git grep -e 'public' --or -e 'void'

a.txt:public

a.txt:void

b.txt:void

c.txt:public

c.txt:public

------------------->$ git grep -e 'public' -e 'void'

a.txt:public

a.txt:void

b.txt:void

c.txt:public

c.txt:public

2.3 非逻辑：某一行不包括...

------------------->$ git grep --not -e 'public'

a.txt:ab

a.txt:bc

a.txt:void

b.txt:void

b.txt:aaa

b.txt:bbb

c.txt:kkkk

c.txt:sfs

c.txt:l

2.4 组合逻辑：与或非的组合（为测试组合逻辑，又在库中新添加了d.txt文件）

------------------->$ git grep -e 'public' --and \( -e 'void' -e 'return' \)

d.txt:public void int save

d.txt:public void string save

d.txt:public return a

------------------->$ git grep -e 'public' --and \( -e 'void' --or -e 'return' \)

d.txt:public void int save

d.txt:public void string save

d.txt:public return a

------------------->$ git grep -e 'public' --and \( -e 'void' --and -e 'int' \)

d.txt:public void int save

------------------->$ git grep -e 'public' --and \( --not -e 'int' \)

a.txt:public

c.txt:public

c.txt:public

d.txt:public void string save

d.txt:public return a

2.5 全匹配：某一文件既包含...又包含...

------------------->$ git grep --all-match -e 'public' -e 'void'

a.txt:public

a.txt:void

d.txt:public void int save

d.txt:public void string save

d.txt:public return a

2.6 以上各个命令还可以加‘-n'、’-c‘、’--name-only‘、版本、文件等限制

2.7 查找某个字符串在何时添加

git log -S"string wanted to search" --oneline

81fbf7e a commit

巴特西

git搜索--grep

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